CN102893456A - Antenna device - Google Patents
Antenna device Download PDFInfo
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- CN102893456A CN102893456A CN2011800035560A CN201180003556A CN102893456A CN 102893456 A CN102893456 A CN 102893456A CN 2011800035560 A CN2011800035560 A CN 2011800035560A CN 201180003556 A CN201180003556 A CN 201180003556A CN 102893456 A CN102893456 A CN 102893456A
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- gain
- elevation angle
- directional characteristic
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- 239000000758 substrate Substances 0.000 claims abstract description 44
- IRLPACMLTUPBCL-KQYNXXCUSA-N 5'-adenylyl sulfate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OS(O)(=O)=O)[C@@H](O)[C@H]1O IRLPACMLTUPBCL-KQYNXXCUSA-N 0.000 description 105
- 238000004804 winding Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/32—Adaptation for use in or on road or rail vehicles
- H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
- H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
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- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Abstract
To mount a plurality of antenna devices corresponding to a plurality of media in a limited space such that the antenna devices do not interfere with one another. [Solution] An antenna substrate (12) is vertically disposed on an antenna base (10). A first pattern (12a), a second pattern (12b) which is connected via a connecting line to the first pattern (12a), and a third pattern (12e) which is connected via a first coil (12c) and a second coil (12d) to the second pattern (12b) are formed on the antenna substrate (12). A gap (La) between a lateral end of the first pattern and an SDARS antenna (13) is made to be greater than or equal to 32mm, and an angle of elevation a between an oblique side of the second pattern (12b) and the SDARS antenna (13) is made to be approximately 30 degrees or less.
Description
Technical field
The present invention relates to a kind of antenna assembly that can be corresponding with a plurality of media that can carry the small-sized low profile on automobile.
Background technology
In the past, following antenna assembly had been proposed: in the antenna assembly that as for motor vehicle antenna assembly, possesses the radome that only has limited space, further insert antenna and also obtain good electrical characteristics.The structure of this antenna assembly 100 in the past of expression in Figure 79.
Antenna assembly in the past 100 shown in this figure is made of radome 110, the antenna base 120 that is entrenched in the lower end of this radome 110, the antenna substrate 130 that is installed on antenna base 120, amplifier substrate 134, planar antenna element 135.The length of the length direction of radome 110 is made as approximately 200mm, the horizontal wide approximately 75mm that is made as.Radome 110 is made as the synthetic resin system of electric wave-transparent, is made as more become thinner and side of front end and also is made as the fairshaped outer shape of the curved surface that dwindles to the inside.In radome 110, be formed with antenna substrate 130 can be erected the space of taking in and with amplifier substrate 134 and antenna base 120 almost parallels the space of taking in.Lower surface at radome 110 is equipped with metal antenna base 120.And antenna substrate 130 erects and is fixed in antenna base 120, and in the mode in the place ahead of being positioned at antenna substrate 130 amplifier substrate 134 is fixed in antenna base 120.In addition, be formed with rectangular-shaped breach 130a at the central portion of the lower edge of antenna substrate 130, planar antenna element 135 is installed on antenna base 120 in the mode that is positioned at this breach 130a.By this antenna base 120 being installed in the lower surface of radome 110, can take in the inner space of radome 110 antenna substrate 130, amplifier substrate 134 and planar antenna element 135.
In addition, the lower surface from antenna base 120 is formed with highlightedly for the bolt part 121 that antenna assembly 100 is installed on vehicle.Be formed with through hole in this bolt part 121, multi-cable is derived from antenna assembly 100 via bolt part 121.And antenna substrate 130 is made as the printed base plate of the good glass epoxy substrate of high frequency characteristics etc., and forms on top and to consist of antenna element 131 patterns that can receive the antenna that AM broadcasting and FM broadcast.Antenna substrate 130 from the height of antenna base 120 be made as h1, length is made as p.In addition, the length of antenna element 131 is made as p, the width (highly) identical with antenna substrate 130 and is made as h2.And the interval of the upper surface of the lower edge of antenna element 131 and planar antenna element 135 is made as d.Because it is that approximately following height, the length p of 75mm is approximately below the 90mm that the restriction of the inner space of radome 110, the size of this antenna element 131 are made as height h1.Here, when the wavelength of establishing the frequency 100MHz of FM wavestrip was made as λ a, approximately the size of 75mm became approximately 0.025 λ a, approximately the size of 90mm becomes approximately 0.03 λ a, and antenna element 131 becomes subminiature antenna with respect to wavelength X a.
In addition, the aerial coil about 1 μ H～3 μ H in series is inserted between the input of the supply terminals of antenna element 131 and the amplifier in the amplifier substrate 134, makes the antenna part that is made of antenna element 131 and aerial coil 132 carry out resonance near the FM wavestrip.In addition, the amplifier that is arranged on amplifier substrate 134 amplifies the FM broadcast singal that receives by antenna element 131 and AM broadcast singal and exports.And, under antenna element 131, dispose the planar antenna element 135 that receives radio broadcast via satellite.Planar antenna element 135 has and possesses perturbation element and grafting (patch) element that can reception of circular polarized.Planar antenna element 135 is made as SDARS, and (Satellite Digital Audio Radio Service: the satellite digital audio wireless radio service) antenna of reception usefulness, its centre frequency is 2338.75MHz.When the wavelength with the centre frequency of the action frequency band of planar antenna element 135 is made as λ s, being spaced apart approximately more than the 0.25 λ s of the lower end of the upper surface of planar antenna element 135 and antenna element 131.Thus, can not be subjected to the impact ground of antenna element 131 that the emission directional characteristic in the horizontal plane of planar antenna element 135 is made as astaticism and obtains good gain characteristic.
Patent documentation 1: TOHKEMY 2009-135741 communique
Summary of the invention
In vehicle in recent years in order to require fail safe, comfortableness and carried out the lift-launch of various information instruments.Accompany therewith, need in vehicle, carry broadcast system reception antenna and information communication system antenna for corresponding with a plurality of media.The desired performance of antenna of vehicle (moving body) usefulness generally is astaticism in horizontal plane.Thereby the position that is suitable for the antenna loading position is based on the outside, particularly body roof of the minimum vehicle of the impact of the shielding of metal object, reflection becomes good condition.But, when considering the matching that designs with vehicle, be difficult to for each media a plurality of antennas are arranged on the body roof with standing in great numbers.In addition, by legal provisions the projection (antenna is high) from vehicle is arranged conditional situation more, elongated in the situation of the antenna size that is made as the wavelength that sends and receives that is suitable for each media, therefore be made as the loading and unloading type assembly in order to avoid legal provisions.In this case, may be owing to forgetting to install and cause reception/communication failure, cause losing etc. owing to stolen.
Antenna assembly in the past possesses the antenna element that receives radio broadcast via satellite, but when further carrying the antenna corresponding with other media, owing to be limited space in the radome, so there are the following problems point: antenna influences each other each other and can't obtain good directional characteristic, gain characteristic.
Therefore, the object of the present invention is to provide a kind of antenna assembly, can carry a plurality of antenna assemblies corresponding with a plurality of media, so that in limited space, do not influence each other.
In order to reach above-mentioned purpose, antenna assembly of the present invention is fitted to antenna base with the lower end of radome and is formed with accommodation space in inside, the topmost of this antenna assembly is characterised in that, possess: antenna substrate, be erected to be disposed on the above-mentioned antenna base, have the 1st pattern that the supply terminals from the bottom forms along lateral margin to top, the 2nd pattern that is formed on top that is connected with the 1st pattern by connecting line and the 3rd pattern that is formed on top that is connected with above-mentioned the 2nd pattern via the choking-winding that is connected in series and loading coil; And antenna element, leave predetermined distance La with the side of above-mentioned the 1st pattern and be disposed on the above-mentioned antenna base, wherein, be made as approximately below 30 ° and the wavelength of the centre frequency of the frequency of utilization frequency band of above-mentioned antenna element when being made as λ at the elevation angle theta a of the approximate centre of the hypotenuse of the above-mentioned lateral margin side that connects above-mentioned the 2nd pattern and above-mentioned antenna element, afore mentioned rules interval La is made as approximately λ/more than 4.
In antenna assembly of the present invention, when antenna element being received in the accommodation space that is formed by radome and antenna base, the elevation angle theta a that connects the approximate centre of the hypotenuse of lateral margin side of the 2nd pattern and antenna element is made as approximately below 30 °, and when the wavelength of the centre frequency of the frequency of utilization frequency band of antenna element is made as λ, predetermined distance La is made as approximately λ/more than 4.Thus, even accommodation space is limited space antenna is not configured with can mutually not doing one's utmost each other impact.In addition, the 1st pattern moves with antenna as the phone of 2GHz frequency range, the 1st pattern and the 2nd pattern move with antenna as the phone of 900MHz frequency band, choking-winding performance function so that more than the 900MHz frequency band with the 3rd pattern from the 2nd pattern high frequency cutoff, the integral body of the 3rd pattern that is connected in series, choking-winding, loading coil, the 2nd pattern and the 1st pattern is moved as the antenna of AM/FM frequency band.
Description of drawings
Fig. 1 is the vertical view of the structure of the expression antenna assembly relevant with embodiments of the invention.
Fig. 2 is the end view of the structure of the expression antenna assembly relevant with embodiments of the invention.
Fig. 3 is the front view of the structure of the expression antenna assembly relevant with embodiments of the invention.
Fig. 4 is the end view of the internal structure of the expression antenna assembly relevant with embodiments of the invention.
Fig. 5 is the end view of size of the each several part of the expression antenna assembly relevant with embodiments of the invention.
Fig. 6 is the figure with respect to the gain characteristic of the mean value at the elevation angle of the expression AMPS relevant with antenna assembly of the present invention.
Fig. 7 is the figure with respect to the gain characteristic of the mean value at the elevation angle of the expression PCS relevant with antenna assembly of the present invention.
Fig. 8 is the figure with respect to the directional characteristic of 0 ° at the elevation angle, frequency 824MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Fig. 9 is the figure with respect to the directional characteristic of 0 ° at the elevation angle, frequency 894MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 10 is the figure with respect to the directional characteristic of 0 ° at the elevation angle, frequency 1850MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 11 is the figure with respect to the directional characteristic of 0 ° at the elevation angle, frequency 1990MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 12 is the figure with respect to the directional characteristic of 5 ° at the elevation angle, frequency 824MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 13 is the figure with respect to the directional characteristic of 5 ° at the elevation angle, frequency 894MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 14 is the figure with respect to the directional characteristic of 5 ° at the elevation angle, frequency 1850MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 15 is the figure with respect to the directional characteristic of 5 ° at the elevation angle, frequency 1990MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 16 is the figure with respect to the directional characteristic of 10 ° at the elevation angle, frequency 824MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 17 is the figure with respect to the directional characteristic of 10 ° at the elevation angle, frequency 894MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 18 is the figure with respect to the directional characteristic of 10 ° at the elevation angle, frequency 1850MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 19 is the figure with respect to the directional characteristic of 10 ° at the elevation angle, frequency 1990MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 20 is the figure with respect to the directional characteristic of 20 ° at the elevation angle, frequency 824MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 21 is the figure with respect to the directional characteristic of 20 ° at the elevation angle, frequency 894MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 22 is the figure with respect to the directional characteristic of 20 ° at the elevation angle, frequency 1850MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 23 is the figure with respect to the directional characteristic of 20 ° at the elevation angle, frequency 1990MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 24 is the figure with respect to the directional characteristic of 30 ° at the elevation angle, frequency 824MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 25 is the figure with respect to the directional characteristic of 30 ° at the elevation angle, frequency 894MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 26 is the figure with respect to the directional characteristic of 30 ° at the elevation angle, frequency 1850MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 27 is the figure with respect to the directional characteristic of 30 ° at the elevation angle, frequency 1990MHz of the expression AMPS/PCS relevant with antenna assembly of the present invention.
Figure 28 is the figure with respect to the gain characteristic at the elevation angle of the expression GPS relevant with antenna assembly of the present invention.
Figure 29 is the figure with respect to the gain characteristic of the mean value at the elevation angle of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 30 is the figure with respect to the gain characteristic of the minimum value at the elevation angle of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 31 is the figure with respect to the gain characteristic of the mean value at the elevation angle of the expression XM (surface wave) relevant with antenna assembly of the present invention.
Figure 32 is the figure with respect to the directional characteristic of 20 ° at the elevation angle, frequency 2.3325GHz of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 33 is the figure with respect to the directional characteristic of 20 ° at the elevation angle, frequency 2.345GHz of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 34 is the figure with respect to the directional characteristic of 30 ° at the elevation angle, frequency 2.3325GHz of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 35 is the figure with respect to the directional characteristic of 30 ° at the elevation angle, frequency 2.345GHz of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 36 is the figure with respect to the directional characteristic of 40 ° at the elevation angle, frequency 2.3325GHz of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 37 is the figure with respect to the directional characteristic of 40 ° at the elevation angle, frequency 2.345GHz of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 38 is the figure with respect to the directional characteristic of 50 ° at the elevation angle, frequency 2.3325GHz of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 39 is the figure with respect to the directional characteristic of 50 ° at the elevation angle, frequency 2.345GHz of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 40 is the figure with respect to the directional characteristic of 60 ° at the elevation angle, frequency 2.3325GHz of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 41 is the figure with respect to the directional characteristic of 60 ° at the elevation angle, frequency 2.345GHz of the expression XM (satellite ripple) relevant with antenna assembly of the present invention.
Figure 42 is the figure with respect to the directional characteristic of 0 ° at the elevation angle, frequency 2.3325GHz of the expression XM (surface wave) relevant with antenna assembly of the present invention.
Figure 43 is the figure with respect to the directional characteristic of 0 ° at the elevation angle, frequency 2.345GHz of the expression XM (surface wave) relevant with antenna assembly of the present invention.
Figure 44 is the figure with respect to the directional characteristic of 10 ° at the elevation angle, frequency 2.3325GHz of the expression XM (surface wave) relevant with antenna assembly of the present invention.
Figure 45 is the figure with respect to the directional characteristic of 10 ° at the elevation angle, frequency 2.345GHz of the expression XM (surface wave) relevant with antenna assembly of the present invention.
Figure 46 is the figure with respect to the directional characteristic of 15 ° at the elevation angle, frequency 2.3325GHz of the expression XM (surface wave) relevant with antenna assembly of the present invention.
Figure 47 is the figure with respect to the directional characteristic of 15 ° at the elevation angle, frequency 2.45GHz of the expression XM (surface wave) relevant with antenna assembly of the present invention.
Figure 48 is the end view of internal structure of other antenna assembly of the expression position of having changed the SDARS antenna in the antenna assembly of the present invention.
Figure 49 is the figure with respect to the gain characteristic of the mean value at the elevation angle of the XM (satellite ripple) of other antenna assembly of expression.
Figure 50 is the figure with respect to the gain characteristic of the minimum value at the elevation angle of the XM (satellite ripple) of other antenna assembly of expression.
Figure 51 is the figure with respect to the directional characteristic of 20 ° at the elevation angle, frequency 2.33875GHz of the XM (satellite ripple) of other antenna assembly of expression.
Figure 52 is the figure with respect to the directional characteristic of 30 ° at the elevation angle, frequency 2.33875GHz of the XM (satellite ripple) of other antenna assembly of expression.
Figure 53 is the figure with respect to the directional characteristic of 40 ° at the elevation angle, frequency 2.33875GHz of the XM (satellite ripple) of other antenna assembly of expression.
Figure 54 is the figure with respect to the directional characteristic of 50 ° at the elevation angle, frequency 2.33875GHz of the XM (satellite ripple) of other antenna assembly of expression.
Figure 55 is the figure with respect to the directional characteristic of 60 ° at the elevation angle, frequency 2.33875GHz of the XM (satellite ripple) of other antenna assembly of expression.
Figure 56 is the figure with respect to the directional characteristic of 0 ° at the elevation angle, frequency 2.33875GHz of the XM (surface wave) of other antenna assembly of expression.
Figure 57 is the figure with respect to the directional characteristic of 5 ° at the elevation angle, frequency 2.33875GHz of the XM (surface wave) of other antenna assembly of expression.
Figure 58 is the figure with respect to the directional characteristic of 10 ° at the elevation angle, frequency 2.33875GHz of the XM (surface wave) of other antenna assembly of expression.
Figure 59 is the figure with respect to the directional characteristic of 15 ° at the elevation angle, frequency 2.33875GHz of the XM (surface wave) of other antenna assembly of expression.
Figure 60 is the end view of internal structure that is illustrated in other other antenna assembly of the height that has reduced choking-winding and loading coil in the antenna assembly relevant with embodiments of the invention.
Figure 61 is the figure with respect to the gain characteristic at the elevation angle of the AMPS of other other antenna assembly of expression.
Figure 62 is the figure with respect to the gain characteristic at the elevation angle of the PCS of other other antenna assembly of expression.
Figure 63 is the figure with respect to the directional characteristic of 0 ° at the elevation angle, frequency 824MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 64 is the figure with respect to the directional characteristic of 0 ° at the elevation angle, frequency 894MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 65 is the figure with respect to the directional characteristic of 0 ° at the elevation angle, frequency 1850MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 66 is the figure with respect to the directional characteristic of 0 ° at the elevation angle, frequency 1930MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 67 is the figure with respect to the directional characteristic of 10 ° at the elevation angle, frequency 824MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 68 is the figure with respect to the directional characteristic of 10 ° at the elevation angle, frequency 894MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 69 is the figure with respect to the directional characteristic of 10 ° at the elevation angle, frequency 1850MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 70 is the figure with respect to the directional characteristic of 10 ° at the elevation angle, frequency 1930MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 71 is the figure with respect to the directional characteristic of 20 ° at the elevation angle, frequency 824MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 72 is the figure with respect to the directional characteristic of 20 ° at the elevation angle, frequency 894MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 73 is the figure with respect to the directional characteristic of 20 ° at the elevation angle, frequency 1850MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 74 is the figure with respect to the directional characteristic of 20 ° at the elevation angle, frequency 1930MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 75 is the figure with respect to the directional characteristic of 30 ° at the elevation angle, frequency 824MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 76 is the figure with respect to the directional characteristic of 30 ° at the elevation angle, frequency 894MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 77 is the figure with respect to the directional characteristic of 30 ° at the elevation angle, frequency 1850MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 78 is the figure with respect to the directional characteristic of 30 ° at the elevation angle, frequency 1930MHz of the AMPS/PCS of other other antenna assembly of expression.
Figure 79 is the end view that represents the structure of antenna assembly in the past.
Description of reference numerals
1: antenna assembly; 2: antenna assembly; 3: antenna assembly; 10: antenna base; 10a: bolt part; 11: radome; 12: antenna substrate; 12a: the 1st pattern; 12b: the 2nd pattern; 12c: the 1st coil; 12d: the 2nd coil; 12e: the 3rd pattern; 12f: connecting line; 12g: supply terminals; The 13:SDARS antenna; The 14:GPS antenna; 15: circuit substrate; 100: antenna assembly; 100MHz: frequency; 110: radome; 120: antenna base; 130: antenna substrate; 130a: breach; 131: antenna element; 132: aerial coil; 134: the amplifier substrate; 135: planar antenna element
Embodiment
The structure of the antenna assembly 1 relevant with embodiments of the invention is illustrated among Fig. 1～Fig. 5.Wherein, Fig. 1 is the vertical view of the structure of the expression antenna assembly 1 relevant with the present invention, Fig. 2 is the end view of the structure of the expression antenna assembly 1 relevant with the present invention, Fig. 3 is the front view of the structure of the expression antenna assembly 1 relevant with the present invention, Fig. 4 is the end view of the internal structure of the expression antenna assembly 1 relevant with the present invention, and Fig. 5 is the end view of size that represents the each several part of the antenna assembly 1 relevant with the present invention.
The antenna assembly relevant with embodiments of the invention 1 shown in these figure is the antenna assembly that is installed in the roof of vehicle, and being made as the length L 1 of length direction approximately, 210mm, horizontal wide L3 are made as approximately 66mm, be made as approximately 67mm from the outstanding height L2 of vehicle when being installed to vehicle, thereby be made as small-sized and low profile.The front end that is shaped as more of this antenna assembly 1 becomes thinner streamlined, can do not damage vehicle attractive in appearance/freely determine shape in the scope to a certain degree of design.And, be embedded with the base pads of the softness of rubber system or elasticity system at the lower surface of antenna assembly 1, can be installed to vehicle waterproofly.
The antenna assembly 1 relevant with embodiments of the invention possesses to have and can receive the AM radio frequency band, the FM radio frequency band of 76～90MHz or 88～108MHz, GSM (the Global System for Mobile Communications: global system for mobile communications) the phone frequency range of 900 900MHz frequency range of the AMPS of 824～894MHz (Digital Advanced Mobile Phone System: digital advanced mobile phone service system) or 880～960MHz, personal communication service) or the phone frequency range of the 2GHz frequency range of the GSM1800 of 1710～1880MHz the PCS of 1850～1990MHz (Personal Communication Services:, 1.57542GHz the GPS frequency range, 2.320 the SDARS of the Sirius radio of～2.3325GHz or the XM Radio of 2.3325～2.345GHz (Satellite Digital Audio Radio: the satellite digital audio radio) antenna of frequency range.Like this, relevant with embodiments of the invention antenna assembly 1 is corresponding with 6 media of AM/FM/TEL (2 frequency)/GPS/SDARS.
The antenna assembly 1 relevant with these embodiments of the invention possesses and has: resinous radome 11, be entrenched in the metal antenna base 10 of the lower end of this radome 11, the antenna substrate 12 generally perpendicularly installed with antenna base 10, be installed in SDARS antenna 13 and the gps antenna 14 in the place ahead on the antenna base 10 and the circuit substrate 15 that is configured in the part that the undercut in the antenna substrate 12 is formed side by side.Radome 11 is made as the synthetic resin system of electric wave-transparent, for more past front end becomes thinner fairshaped outer shape.In radome 11, be formed with and take in the space that accommodation space, transverse direction that Fig. 4 erects the antenna substrate 12 of setting and SDARS antenna 13 and gps antenna 14 are as shown taken in circuit substrate 15.Be embedded with metal antenna base 10 in the lower end of radome 11.And, erect setting and be fixed with antenna substrate 12 at antenna base 10.
As shown in Figure 4, the one side at antenna substrate 12 is formed with the 1st pattern 12a, the 2nd pattern 12b and the 3rd pattern 12e that for example is made as Copper Foil by printing.The 1st pattern 12a forms the essentially rectangular shape at the lateral margin along the place ahead of antenna substrate 12 from the bottom towards the longitudinal direction on top, and the bottom is tapered and forms taper, and the lower end is made as supply terminals 12g.This supply terminals 12g is connected with the input of the channel splitting circuit that is installed on circuit substrate 15.The 2nd pattern 12b forms at transverse direction on the top of antenna substrate 12, is made as the essentially rectangular shape that is formed with hypotenuse in the lateral margin side in the place ahead of antenna substrate 12.Configuration SDARS antenna 13 is that θ a and elevation angle theta a are approximately below the 30deg so that connect the elevation angle of this hypotenuse and the approximate centre of the SDARS antenna 13 that is configured in the forefront.The regulation position of the regulation position of the front portion of the 2nd pattern 12b, the bottom of the 1st pattern 12a connects by connecting line 12f.The 3rd pattern 12e forms elongated essentially rectangular shape on the top of antenna substrate 12 at transverse direction, and a part is cut in the bottom in the place ahead.
The part that this of the 3rd pattern 12e has been tailored and the rear end of the 2nd pattern 12b connect via the series circuit of the 1st coil 12c and the 2nd coil 12d.The 1st coil 12c and the 2nd coil 12d are configured to mutual orthogonality of center shaft, and the 1st coil 12c and the 2nd coil 12d reciprocally bring into play function independently.The 1st coil 12c is as in the phone frequency range of 900MHz frequency range and 2GHz frequency range the 3rd pattern 12e being played a role from the choking-winding of the 2nd pattern 12b high frequency cutoff.In addition, the 2nd coil 12d is as the loading coil of AM/FM antenna described later and play a role.Therefore like this, the 1st coil 12c carries out respectively different actions with the 2nd coil 12d, is made as respectively independently coil and is configured to mutual orthogonality of center shaft and does not mutually interfere.In addition, the 1st coil 12c carries out resonance in 800MHz～900MHz, and this resonance is that the inductance by float electric capacity and the 1st coil 12c of 10 of the line capacitances of the 1st coil 12c, antenna base produces.In addition, connect the 1st coil 12c in the rear end of the 2nd pattern 12b and connect loading coil not make emission effciency do one's utmost to reduce for the little position of the high-frequency current in the rear end of the 2nd pattern 12b.
Be formed on the 1st pattern 12a of the antenna substrate 12 of the dotted line of the rectangle that represented by C and move as the TEL_PCS antenna of the phone frequency range of 2GHz frequency range, connect by connecting line 12f with the 2nd pattern 12b and move as the TEL_AMPS antenna of the phone frequency range of 900MHz frequency range with the 1st pattern 12a of the dotted line of the rectangle that represented by B.In addition, connecting line 12f plays a role as the choking-winding in the PCS frequency range, so that the 1st pattern 12a moves independently in the PCS frequency range.In addition, with the integral body of the 1st pattern 12a that is connected in series, the 2nd pattern 12b of the dotted line of the rectangle of the bending that represented by A, the 1st coil 12c, the 2nd coil 12d, the 3rd pattern 12e as roughly in the FM radio frequency band AM/FM antenna of resonance move.In this case, the 2nd coil 12d makes the AM/FM antenna play a role at the loading coil of FM radio frequency band resonance as being used for.In addition, the AM/FM antenna moves as nonresonant antenna in the AM radio frequency band.Therefore, from the reception signal of supply terminals 12g output TEL_PCS antenna, TEL_AMPS antenna, AM/FM antenna and the channel splitting circuit that input is installed on circuit substrate 15.In this channel splitting circuit, the wireless reception signal of the reception signal of phone frequency range and AM/FM is by partial wave, and the reception signal of AM/FM radio frequency band is amplified by amplifier, exports via cable respectively.
In addition, the height from antenna base 10 of the lower surface of the 1st coil 12c and the 2nd coil 12d is made as H, and height H is about 38mm.By height H being made as approximately more than the 38mm, so that do not hinder the directional characteristic of TEL_PCS antenna, guarantee its gain, and its directional characteristic becomes good.
The SDARS antenna 13 that is configured in the forefront of antenna base 10 is made as the microstrip flat plane antenna, and the lateral margin in the place ahead of its rear end and the 1st pattern 12a separates La, and interval La is made as approximately 32mm.In this case, when the wavelength of the centre frequency of the operating frequency band of establishing SDRAS antenna 13 was made as λ, λ/4 were about 32mm, in order to ensure the gain of SDRAS antenna 13 and make its directional characteristic good, interval La were made as approximately λ/more than 4.And, between SDRAS antenna 13 and antenna substrate 12, configured gps antenna 14.Gps antenna 14 is made as the microstrip flat plane antenna.In addition, the lower surface from antenna base 10 is formed with highlightedly for the bolt part 10a that antenna assembly 1 is installed to vehicle.10a is formed with through hole in this bolt part, and multi-cable is derived from antenna assembly 1 via bolt part 10a.In this case, form the hole of slotting logical bolt part 10a at the roof of vehicle, at roof mounting antenna assembly 1, so that in these holes, insert logical bolt part 10a.And, can tighten nut by the bolt part 10a in being projected into vehicle and antenna assembly 1 is fixed on the roof of vehicle.The cable of drawing from bolt part 10a at this moment, imports in the vehicle.The cable of inserting the through hole of logical this bolt part 10a and drawing to the outside be made as the sending/receiving signal that transmits the phone frequency range cable, derive the cable of the wireless reception signal of AM/FM, the cable of deriving from SDARS antenna 13, the cable of deriving from gps antenna 14.Front end at each cable is provided with AM/FM lead-out terminal, TEL input/output terminal, SDARS lead-out terminal, GPS lead-out terminal, and these terminals connect with the input terminal of corresponding receiver respectively.
If exemplify an example of the size of the 1st pattern 12a that is formed at antenna substrate shown in Figure 5 12～the 3rd pattern 12e, then the length D1 of the longitudinal direction of the 1st pattern 12a is made as approximately that 39mm, width W 1 are made as approximately 20mm, the length D2 of the 2nd pattern 12b is made as approximately that 20mm, width W 2 are made as approximately 15mm, and the length D3 of the 3rd pattern 12e is made as approximately that 69mm, width W 3 are made as approximately 27.5mm.
Here, the electrical characteristics with the antenna assembly relevant with embodiments of the invention 1 are illustrated among Fig. 6～Figure 47.In this case, the size of the 1st pattern 12a～the 3rd pattern 12e is made as described above, and the rear end of SDARS antenna 13 and the interval La of the lateral margin in the place ahead of the 1st pattern 12a are made as the height H from antenna base 10 that the about elevation angle theta a of the approximate centre of 32mm, the hypotenuse that is connected the 2nd pattern 12b and SDARS antenna 13 is made as the lower surface of approximately 30deg, the 1st coil 12c and the 2nd coil 12d and are made as approximately that the wire diameter of 38mm, the 1st coil 12c is made as approximately
, coil diameter is made as approximately
And the number of turn is made as approximately, and the wire diameter of 12.5 circles, the 2nd coil 12d is made as approximately
, coil diameter is made as approximately
And the number of turn is made as approximately 13.5 circles.In addition, antenna assembly 1 is arranged on the ground plate of diameter 1m.
The gain characteristic with respect to the mean value at the elevation angle of the lower frequency limit 824MHz that at first, in Fig. 6, is illustrated in the antenna assembly 1 of the present invention in the AMPS frequency range and the TEL_AMPS antenna of upper limiting frequency 894MHz.This mean value is the mean value of the gain of horizontal plane interior orientation characteristic.When reference Fig. 6, obtain when being 0deg and 824MHz at the elevation angle approximately-2.4dBi, when 894MHz, obtain approximately-average gain of 3.0dBi, along with the elevation angle is increased to 5,10,15,20,25,30deg, average gain also rises.Obtain approximately 2.6dBi when being 30deg and 824MHz at the elevation angle, when 894MHz, obtain the approximately good average gain of 3.2dBi.The average gain with respect to the elevation angle 0～30deg of having confirmed the full AMPS frequency range of TEL_AMPS antenna becomes the characteristic roughly the same with the average gain with respect to the elevation angle of the TEL_AMPS antenna of lower frequency limit 824MHz and upper limiting frequency 894MHz, it is less that frequency becomes higher and the elevation angle becomes, and average gain descends.That is, in the TEL_AMPS antenna, the elevation angle is the average gain that the average gain of pact-3.0dBi of 0deg and 894MHz becomes minimum value.
Like this, the TEL_AMPS antenna is in good gain characteristic shown in the AMPS frequency range.
The gain characteristic with respect to the mean value at the elevation angle of the lower frequency limit 1850MHz that then, in Fig. 7, is illustrated in the antenna assembly 1 of the present invention in the PCS frequency range and the TEL_PCS antenna of upper limiting frequency 1990MHz.This mean value is the mean value of the gain of horizontal plane interior orientation characteristic.When reference Fig. 7, obtain when being 0deg and 1850MHz at the elevation angle approximately-0.8dBi, when 1990MHz, obtain approximately-average gain of 0.2dBi, along with the elevation angle is increased to 5,10,15,20deg, average gain also rises, but when about 20deg saturated and along be increased to 25,30deg, average gain descends.Obtain approximately 4.1dBi when being 20deg and 1850MHz at the elevation angle, when 1990MHz, obtain the approximately good average gain of 4.9dBi.Confirmed the roughly the same characteristic of the average gain with respect to the elevation angle with respect to the TEL_PCS antenna of the average gain of the elevation angle 0～30deg and lower frequency limit 1850MHz and upper limiting frequency 1990MHz of the full PCS frequency range of TEL_PCS antenna, frequency is that approximately 1910MHz and the elevation angle are the average gain that the average gain of pact-1.0dBi of 0deg becomes minimum value.
Like this, the TEL_PCS antenna is in good gain characteristic shown in the PCS frequency range.
Directional characteristic in the horizontal plane of the TEL_PCS antenna the when directional characteristic in the horizontal plane of the TEL_AMPS antenna when the lower frequency limit 824MHz that then, in Fig. 8～Figure 27, is illustrated in the antenna assembly 1 of the present invention in the AMPS frequency range and upper limiting frequency 894MHz and the elevation angle 0,5,10,20,30deg and the lower frequency limit 1850MHz of PCS frequency range and upper limiting frequency 1990MHz and the elevation angle 0,5,10,20,30deg.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Fig. 8 when the lower frequency limit 824MHz of expression AMPS frequency range and elevation angle 0deg, obtain maximum gain and be approximately-1.2dBi, least gain for approximately-3.6dBi and fluctuation are the about good directional characteristic of the roughly astaticism of 2.4dB.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Fig. 9 when the upper limiting frequency 894MHz of expression AMPS frequency range and elevation angle 0deg, obtain maximum gain and be approximately-2.2dBi, least gain for approximately-3.8dBi and fluctuation are the about good directional characteristic of the roughly astaticism of 1.6dB.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 10 when the lower frequency limit 1850MHz of expression PCS frequency range and elevation angle 0deg, obtain maximum gain and be about 1.5dBi, least gain for approximately-4.9dBi, fluctuation be about 6.4dB and about ± 120 directional characteristic of the substantially elliptical that descends of the gain of ° direction.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 11 when the upper limiting frequency 1990MHz of expression PCS frequency range and elevation angle 0deg, obtain maximum gain and be about 1.3dBi, least gain for approximately-4.9dBi, fluctuation be about 7.3dB and about ± 105 directional characteristic of the substantially elliptical that descends of the gain of ° direction.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 12 when the lower frequency limit 824MHz of expression AMPS frequency range and elevation angle 5deg, obtain maximum gain and be approximately-0.9dBi, least gain for approximately-2.4dBi and fluctuation are the about good directional characteristic of the roughly astaticism of 1.5dB.Improve during the 0deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 13 when the upper limiting frequency 894MHz of expression AMPS frequency range and elevation angle 5deg, obtain maximum gain and be approximately-0.3dBi, least gain for approximately-2.0dBi and fluctuation are the about good directional characteristic of the roughly astaticism of 1.7dB.Improve during the 0deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 14 when the lower frequency limit 1850MHz of expression PCS frequency range and elevation angle 5deg, although obtain maximum gain be approximately 3.2dBi, least gain for approximately-directional characteristic of 2.5dBi, the fluctuation improved substantially elliptical for about 5.7dB and when approximately ± 120 gain of ° direction descends than elevation angle 0deg.Improve during the 0deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 15 when the upper limiting frequency 1990MHz of expression PCS frequency range and elevation angle 5deg, obtain maximum gain and be about 4.1dBi, least gain for approximately-3.6dBi, fluctuation be about 7.7dB and about ± 105 directional characteristic of the substantially elliptical that descends of the gain of ° direction.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 16 when the lower frequency limit 824MHz of expression AMPS frequency range and elevation angle 10deg, obtain maximum gain and be approximately 0.5dBi, least gain for approximately-0.9dBi and fluctuation be the about good directional characteristic of the roughly astaticism of 1.4dB.Improve during the 5deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 17 when the upper limiting frequency 894MHz of expression AMPS frequency range and elevation angle 10deg, obtain maximum gain and be approximately 1.2dBi, least gain for approximately-0.3dBi and fluctuation be the about good directional characteristic of the roughly astaticism of 1.5dB.Improve during the 5deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 18 when the lower frequency limit 1850MHz of expression PCS frequency range and elevation angle 10deg, obtain maximum gain and be about 4.5dBi, least gain for approximately-1.4dBi, fluctuation be about 5.9dB and about ± 105 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Improve during the 5deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 19 when the upper limiting frequency 1990MHz of expression PCS frequency range and elevation angle 10deg, obtain maximum gain and be about 5.5dBi, least gain for approximately-2.2dBi, fluctuation be about 7.7dB and about ± 105 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Improve during the 5deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 20 when the lower frequency limit 824MHz of expression AMPS frequency range and elevation angle 20deg obtains maximum gain and is approximately 1.8dBi, least gain and be approximately 1.1dBi and fluctuation and is the about good directional characteristic of the roughly astaticism of 0.7dB.Improve during the 10deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 21 when the upper limiting frequency 894MHz of expression AMPS frequency range and elevation angle 20deg obtains maximum gain and is approximately 3.0dBi, least gain and be approximately 2.0dBi and fluctuation and is the about good directional characteristic of the roughly astaticism of 1.0dB.Improve during the 10deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 22 when the lower frequency limit 1850MHz of expression PCS frequency range and elevation angle 20deg obtains maximum gain and is approximately 6.2dBi, least gain and be about 0.3dBi, fluctuation and is about 5.9dB and about ± 105 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Improve during the 10deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 23 when the upper limiting frequency 1990MHz of expression PCS frequency range and elevation angle 20deg, obtain maximum gain and be about 7.3dBi, least gain for approximately-0.1dBi, fluctuation be about 7.4dB and about ± 105 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Improve during the 10deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 24 when the lower frequency limit 824MHz of expression AMPS frequency range and elevation angle 30deg obtains maximum gain and is approximately 2.9dBi, least gain and be approximately 2.2dBi and fluctuation and is the about good directional characteristic of the roughly astaticism of 0.7dB.Improve during the 20deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 25 when the upper limiting frequency 894MHz of expression AMPS frequency range and elevation angle 30deg obtains maximum gain and is approximately 3.8dBi, least gain and be approximately 2.9dBi and fluctuation and is the about good directional characteristic of the roughly astaticism of 0.9dB.Improve during the 20deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 26 when the lower frequency limit 1850MHz of expression PCS frequency range and elevation angle 30deg, obtain maximum gain and be about 4.4dBi, least gain for approximately-2.4dBi, fluctuation be about 6.8dB and about ± 105 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Descend during the 20deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 27 when the upper limiting frequency 1990MHz of expression PCS frequency range and elevation angle 30deg, obtain maximum gain and be about 5.2dBi, least gain for approximately-1.5dBi, fluctuation be about 6.7dB and about ± 120 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Descend during the 20deg of the ratio of gains elevation angle.
During with reference to Fig. 8～Figure 27, the directional characteristic in the horizontal plane of the full AMPS frequency range of TEL_AMPS antenna obtains the roughly good directional characteristic of astaticism in the 0～30deg of the elevation angle.In addition, the directional characteristic in the horizontal plane of the full PCS frequency range of TEL_PCS antenna is made as oval-shaped directional characteristic in the 0～30deg of the elevation angle, but obtains in practical sufficient directional characteristic.
The gain characteristic with respect to the mean value at the elevation angle of the gps antenna 14 of the frequency 1575.42MHz that then, in Figure 28, is illustrated in the antenna assembly 1 of the present invention in the GPS frequency range.This mean value is the mean value of the gain of horizontal plane interior orientation characteristic.When reference Figure 28, obtain when being 10deg at the elevation angle approximately-average gain of 2.7dBi, even the elevation angle is increased to 20,30,40,50,60,70,80,90deg, average gain is also only at about 0dBi～approximately change between the 2dBi, only obtains the stable average gain in little range.And, when 80deg, obtain the approximately maximum of 1.6dBi.
Like this, gps antenna 14 is in good gain characteristic shown in the GPS frequency range.
Then, in Figure 29, be illustrated in the antenna assembly 1 of the present invention by the gain characteristic with respect to the mean value at the elevation angle of SDARS antenna 13 when the lower frequency limit 2332.5MHz of XM Radio frequency range and upper limiting frequency 2345MHz receive satellite ripple (Satellite).This mean value is the mean value of the gain of horizontal plane interior orientation characteristic.When reference Figure 29, obtain approximately 2.4dBi when being 20deg and 2332.5MHz at the elevation angle, when 2345MHz, obtain the approximately average gain of 2.3dBi, even the elevation angle is increased to 25,30,35,40,45,50,55,60deg, the average gain when 2332.5MHz also only obtains roughly fixing average gain at about 1.5dBi～approximately change between the 2.5dBi.In addition, the average gain during 2345MHz also only obtains roughly fixing average gain at about 1.4dBi～approximately change between the 2.4dBi, and obtains the approximately good average gain more than the 1.4dBi in the full frequency band of XM Radio frequency range.
In addition, in Figure 30, be illustrated in the antenna assembly 1 of the present invention by the gain characteristic with respect to the minimum value at the elevation angle of SDARS antenna 13 when the lower frequency limit 2332.5MHz of XM Radio frequency range and upper limiting frequency 2345MHz receive satellite ripple (Satellite).This minimum value is the minimum value of the gain in the horizontal plane interior orientation characteristic.When reference Figure 30, obtain when being 20deg and 2332.5MHz at the elevation angle approximately-2.0dBi, when 2345MHz, obtain approximately-least gain of 2.1dBi, and least gain is shown along with the elevation angle is increased to 25,30,35,40,45,50,55,60deg and the tendency that rises.2332.5MHz the time least gain only approximately-2.0dBi～approximately change between the 1.7dBi, obtain the only stable least gain of variation among a small circle in, when 55deg, obtain the approximately minimum value of the maximum of 1.7dBi.In addition, the least gain during 2345MHz also only approximately-2.1dBi～approximately change between the 1.4dBi, obtain sufficient least gain and obtain the only stable least gain of variation among a small circle in, when 60deg, obtain the approximately minimum value of the maximum of 1.4dBi.In addition, least gain obtains approximately in the Whole frequency band of XM Radio frequency range-sufficient least gain more than the 2.1dBi.
Like this, SDARS antenna 13 illustrates good gain characteristic when receiving the satellite ripple (Satellite) of XM Radio frequency range.
Then, in Figure 31, be illustrated in the antenna assembly 1 of the present invention by the gain characteristic with respect to the mean value at the elevation angle of SDARS antenna 13 when the lower frequency limit 2332.5MHz of XM Radio frequency range and upper limiting frequency 2345MHz receive surface wave (Terrestrial).This mean value is the mean value of the gain in the horizontal plane interior orientation characteristic.When reference Figure 31, obtain when being 0deg and 2332.5MHz at the elevation angle approximately-3.2dBi, when 2345MHz, obtain approximately-average gain of 3.4dBi, and along with the elevation angle is increased to 5,10,15deg and rising, the average gain when 15deg and 2332.5MHz obtains approximately that 2.5dBi, the average gain when 15deg and 2345MHz also obtain approximately 2.3dBi.
Confirmed in the full XM Radio frequency range of SDARS antenna 13 with respect to the average gain of the elevation angle 0～15deg and lower frequency limit 2332.5MHz and upper limiting frequency 2345MHz the time the roughly the same characteristic of the average gain with respect to the elevation angle of SDARS antenna 13, average gain increases along with the elevation angle and rises.
Like this, SDARS antenna 13 also illustrates practical sufficient gain characteristic when receiving the surface wave (Terrestrial) of XM Radio frequency range.
Directional characteristic in the horizontal plane of the elevation angle 20,30,40,50 when the lower frequency limit 2332.5MHz that then, is illustrated in Figure 32～Figure 41 in the antenna assembly 1 of the present invention in the XMRadio frequency range and upper limiting frequency 2345MHz receive satellite ripple (Satellite), the SDARS antenna 13 of 60deg.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 32 when the lower frequency limit 2332.5MHz of expression XM Radio frequency range and elevation angle 20deg, obtain maximum gain and be approximately 4.4dBi, least gain for approximately-2.0dBi, fluctuation for about 6.3dB and approximately 150 ° of directions and approximately-120 the gain of ° direction descend but the directional characteristic of astaticism roughly.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 33 when the upper limiting frequency 2345MHz of expression XM Radio frequency range and elevation angle 20deg, obtain maximum gain and be approximately 5.0dBi, least gain for approximately-2.1dBi, fluctuation for about 7.1dB and approximately 150 ° of directions and approximately-120 the gain of ° direction descend but the directional characteristic of astaticism roughly.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 34 when the lower frequency limit 2332.5MHz of expression XM Radio frequency range and elevation angle 30deg, obtain maximum gain and be approximately 4.6dBi, least gain for approximately-1.1dBi and fluctuation be the about directional characteristic of the roughly astaticism of 5.7dB.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 35 when the upper limiting frequency 2345MHz of expression XM Radio frequency range and elevation angle 30deg, obtain maximum gain and be approximately 4.9dBi, least gain for approximately-1.2dBi and fluctuation be the about directional characteristic of the roughly astaticism of 6.1dB.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 36 when the lower frequency limit 2332.5MHz of expression XM Radio frequency range and elevation angle 40deg obtains maximum gain and is approximately 3.1dBi, least gain and be approximately 1.1dBi and fluctuation and is the about good directional characteristic of roughly astaticism of 2.0dB.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 37 when the upper limiting frequency 2345MHz of expression XM Radio frequency range and elevation angle 40deg obtains maximum gain and is approximately 2.7dBi, least gain and be approximately 0.4dBi and fluctuation and is the about good directional characteristic of roughly astaticism of 3.9dB.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 38 when the lower frequency limit 2332.5MHz of expression XM Radio frequency range and elevation angle 50deg obtains maximum gain and is approximately 4.2dBi, least gain and be approximately 0.9dBi and fluctuation and is the about good directional characteristic of roughly astaticism of 3.3dB.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 39 when the upper limiting frequency 2345MHz of expression XM Radio frequency range and elevation angle 50deg obtains maximum gain and is approximately 4.3dBi, least gain and be approximately 0.9dBi and fluctuation and is the about good directional characteristic of roughly astaticism of 3.4dB.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 40 when the lower frequency limit 2332.5MHz of expression XM Radio frequency range and elevation angle 60deg obtains maximum gain and is approximately 3.0dBi, least gain and be approximately 1.0dBi and fluctuation and is the about good directional characteristic of roughly astaticism of 2.0dB.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 41 when the upper limiting frequency 2345MHz of expression XM Radio frequency range and elevation angle 60deg obtains maximum gain and is approximately 3.1dBi, least gain and be approximately 1.4dBi and fluctuation and is the about good directional characteristic of roughly astaticism of 1.7dB.
Like this, the directional characteristic in the horizontal plane of SDARS antenna 13 increases more near astaticism at the elevation angle.Research thinks that this is because the elevation angle increases the cause of the impact more be not subjected to the TEL AMPS antenna that is made of the 1st pattern 12a that is formed on antenna substrate 12 and the 2nd pattern 12b.
Directional characteristic in the horizontal plane of the SDARS antenna 13 the when elevation angle 0,10 when the lower frequency limit 2332.5MHz that then, is illustrated in Figure 42～Figure 47 in the antenna assembly 1 of the present invention in the XMRadio frequency range and upper limiting frequency 2345MHz receive surface wave (Terrestrial), 15deg.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 42 when the lower frequency limit 2332.5MHz of expression XM Radio frequency range and elevation angle 0deg, maximum gain be approximately 0.2dBi, least gain for approximately-13.2dBi, fluctuation for about 13.4dB and approximately the gain of 140 ° of directions descend and approximately-120 the gain of ° direction descend quite a lot of.So research thinks that this is because the impact of little the 1st pattern 12a that is subject to being formed on antenna substrate 12 in the elevation angle and the 2nd pattern 12b etc., but can obtain to be suitable for practical sufficient directional characteristic.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 43 when the upper limiting frequency 2345MHz of expression XM Radio frequency range and elevation angle 0deg, maximum gain be approximately 0.9dBi, least gain for approximately-13.4dBi, fluctuation for about 14.3dB and approximately the gain of 140 ° of directions descend and approximately-120 the gain of ° direction descend quite a lot ofly, become more high-gain and directional characteristic of frequency is deteriorated.But, can obtain to be suitable for fully practical directional characteristic.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 44 when the lower frequency limit 2332.5MHz of expression XM Radio frequency range and elevation angle 10deg, maximum gain be approximately 4.1dBi, least gain for approximately-6.7dBi, fluctuation for about 10.8dB, approximately the gain of 140 ° of directions descend and approximately-120 the gain of ° direction descend quite a lot of.But, compare gain and directional characteristic with elevation angle 0deg and improve, can obtain to be suitable for fully practical directional characteristic.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 45 when the upper limiting frequency 2345MHz of expression XM Radio frequency range and elevation angle 10deg, maximum gain be approximately 4.1dBi, least gain for approximately-6.2dBi, fluctuation for about 10.3dB, approximately 140 ° of directions and approximately-120 the gain of ° direction descend.But, compare gain and directional characteristic with elevation angle 0deg and improve, can obtain to be suitable for fully practical directional characteristic.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 46 when the lower frequency limit 2332.5MHz of expression XM Radio frequency range and elevation angle 15deg, maximum gain be approximately 5.3dBi, least gain for approximately-4.6dBi, fluctuation for about 9.9dB, approximately the gain of 140 ° of directions descend and approximately-120 the gain of ° direction descend quite a lot of.But, compare gain and directional characteristic with elevation angle 10deg and improve, obtain to be suitable for fully practical directional characteristic.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 47 when the upper limiting frequency 2345MHz of expression XM Radio frequency range and elevation angle 15deg, maximum gain be approximately 5.7dBi, least gain for approximately-3.9dBi, fluctuation for about 9.6dB, approximately 140 ° of directions and approximately-120 the gain of ° direction descend.But, compare gain and directional characteristic with elevation angle 10deg and improve, obtain to be suitable for fully practical directional characteristic.
As described above, the SDARS antenna 13 in the antenna assembly 1 of the present invention becomes and is suitable for receiving the satellite ripple (Satellite) of XM Radio frequency range and the antenna of surface wave (Terrestrial).
Then, explanation is made as approximately λ/4 (approximately 32mm) above and elevation angle theta a that will be connected the approximate centre of the hypotenuse of the 2nd pattern 12b and SDARS antenna 13 with the interval La between the lateral margin in the rear end of SDARS antenna 13 and the place ahead of the 1st pattern 12a and is made as the approximately reason below the 30deg in the antenna assembly relevant with the present invention 1.The structure of the antenna assembly 2 that is expressed as follows in Figure 48: in the antenna assembly relevant with the present invention 1, configuration SDARS antenna 13 changes to the interval Lb of about 30mm and will be connected the hypotenuse of the 2nd pattern and the elevation angle of the approximate centre of SDARS antenna 13 changes to the approximately elevation angle theta b of 35deg so that its rear end shortens with the interval of the lateral margin in the place ahead of the 1st pattern 12a.In addition, the shape of the 2nd pattern the 2nd pattern 12b ' as shown in figure 48 extends towards the place ahead like that, and its length D4 is made as approximately 30mm.Other structure of antenna assembly 2 is made as identical with antenna assembly 1.
Here, the electrical characteristics with antenna assembly shown in Figure 48 2 are illustrated among Figure 49～Figure 59.In this case, the size of the 2nd pattern 12b ' is made as described above, and interval Lb is made as approximately that 30mm, elevation angle theta b are made as approximately 35deg, is made as identical with antenna assembly 1 about other size etc.
In Figure 49, be illustrated in the antenna assembly 2 by the gain characteristic with respect to the mean value at the elevation angle of SDARS antenna 13 when the lower frequency limit 2332.5MHz of XM Radio frequency range and upper limiting frequency 2345MHz receive satellite ripple (Satellite).This mean value is the mean value of the gain in the horizontal plane interior orientation characteristic.When reference Figure 49, obtain approximately 2.2dBi when being 20deg and 2332.5MHz at the elevation angle, when 2345MHz, obtain the approximately average gain of 1.6dBi, the average gain in the ratio antenna device 1 descends, but obtains sufficient average gain.And even the elevation angle is increased to 25,30,35,40,45,50,55,60deg, the average gain during 2332.5MHz also only at about 1.6dBi～approximately change between the 3.1dBi, obtains roughly fixing average gain.In addition, the average gain during 2345MHz is also only at about 1.3dBi～approximately change between the 2.7dBi, thereby obtains roughly fixing average gain, and obtains the approximately good average gain more than the 1.3dBi in the Whole frequency band of XM Radio frequency range.
In addition, in Figure 50, be illustrated in the antenna assembly 2 by the gain characteristic with respect to the minimum value at the elevation angle of SDARS antenna 13 when the lower frequency limit 2332.5MHz of XM Radio frequency range and upper limiting frequency 2345MHz receive satellite ripple (Satellite).This minimum value is the minimum value of the gain in the horizontal plane interior orientation characteristic.When reference Figure 30, obtain when being 20deg and 2332.5MHz at the elevation angle approximately-1.8dBi, when 2345MHz, obtain approximately-least gain of 4.5dBi, and illustrate along with the tendency that the elevation angle is increased to 25,30,35,40,45,50,55, the 60deg least gain rises.2332.5MHz the time least gain approximately-1.4dBi～approximately changes and only variation among a small circle between the 2.3dBi, obtains the approximately maximum of 1.7dBi during 60deg.In addition, the least gain during 2345MHz only approximately-4.5dBi～approximately change between the 1.8dBi, the minimum value-2.1dBi in the ratio antenna device 1 is much lower-4.5dBi becomes minimum value.In this case, in the situation that the elevation angle is than approximately 30deg is little, along with the frequency gets higher minimum value further descends.
Like this, when interval Lb being changed to approximately 30mm and elevation angle theta b when changing to approximately 35deg, the minimum value with respect to the least gain of the elevation angle 20～60deg in the full XM Radio frequency range of SDARS antenna 13 becomes-4.5dBi, can't guarantee the sufficient gain in the practicality.Therefore, in the antenna assembly relevant with the present invention 1, being made as interval La approximately, 32mm, elevation angle theta a are made as approximately 30deg.In addition, large-spacing La all the more, it is less that elevation angle theta a also becomes, and SDARS antenna 13 separates from the 1st pattern 12a and the 2nd pattern 12b and reduces its impact.That is, all the more large-spacing La, more reduce elevation angle theta a, the gain of SDARS antenna 13 is risen.And, when interval La being made as approximately 32mm, elevation angle theta a and being made as approximately 30deg, the gain of SDARS antenna 13 becomes practical upper fully gain, therefore interval La is made as approximately more than the 32mm (λ/4) in antenna assembly 1 of the present invention, elevation angle theta a is made as approximately below the 30deg.
Directional characteristic in the horizontal plane of the SDARS antenna 13 the when elevation angle 20,30,40,50 when the centre frequency 2338.75MHz that then, is illustrated in Figure 51～Figure 55 in the antenna assembly shown in Figure 48 2 in the XMRadio frequency range receives satellite ripple (Satellite), 60deg.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 51 when the centre frequency 2338.75MHz of expression XM Radio frequency range and elevation angle 20deg, maximum gain be approximately 4.6dBi, least gain for approximately-3.5dBi, fluctuation for about 8.1dB and approximately the gain of 50 ° of directions descend, and approximately 150 ° of directions and approximately-120 the gain of ° direction descend quite a lot of.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 52 when the centre frequency 2338.75MHz of expression XM Radio frequency range and elevation angle 30deg, maximum gain be approximately 4.3dBi, least gain for approximately-1.4dBi, fluctuation for about 5.7dB and approximately 60 ° of directions and approximately the gain till ° direction of 150 ° of directions～approximately-120 descend.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 53 when the centre frequency 2338.75MHz of expression XM Radio frequency range and elevation angle 40deg, maximum gain is that approximately 3.6dBi, least gain are that approximately 0.5dBi and fluctuation are about 3.1dB, obtains the roughly directional characteristic of astaticism.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 54 when the centre frequency 2338.75MHz of expression XM Radio frequency range and elevation angle 50deg, maximum gain is that approximately 4.3dBi, least gain are that approximately 1.5dBi and fluctuation are about 2.7dB, obtains the roughly directional characteristic of astaticism.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 55 when the centre frequency 2338.75MHz of expression XM Radio frequency range and elevation angle 60deg, maximum gain is that approximately 4.0dBi, least gain are that approximately 2.3dBi and fluctuation are about 1.7dB, obtains the roughly directional characteristic of astaticism.
Directional characteristic in the horizontal plane of the SDARS antenna 13 the when elevation angle 0,5,10 when the centre frequency 2338.75MHz that then, is illustrated in Figure 56～Figure 59 in the antenna assembly shown in Figure 48 2 in XM Radio frequency range receives surface wave (Terrestrial), 15deg.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 56 when the centre frequency 2338.75MHz of expression XM Radio frequency range and elevation angle 0deg, maximum gain be approximately 0.6dBi, least gain for approximately-the 13.3dBi fluctuation for about 13.9dB and approximately the gain of 30 ° of direction～60 ° directions for descending, and approximately 150 ° of directions and approximately-120 the gain of ° direction descend a lot, can't obtain astaticism.Like this, least gain little to approximately-13.3dBi and can't obtain astaticism, therefore can't obtain practical sufficient directional characteristic.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 57 when the centre frequency 2338.75MHz of expression XM Radio frequency range and elevation angle 5deg, maximum gain be approximately 2.6dBi, least gain for approximately-11.0dBi, fluctuation for about 13.5dB and approximately the gain of 50 ° of directions for descending, and approximately 150 ° of directions and approximately-120 the gain of ° direction gain a lot of and approximately-120 ° direction that descends descend quite a lot ofly, can't obtain astaticism.Like this, least gain little to approximately-11.0dBi and can't obtain astaticism, therefore can't obtain practical sufficient directional characteristic.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 58 when the centre frequency 2338.75MHz of expression XM Radio frequency range and elevation angle 10deg, maximum gain be approximately 4.4dBi, least gain for approximately-8.0dBi, fluctuation for about 12.4dB and approximately the gain of 50 ° of directions for descending, and approximately 150 ° of directions and approximately-120 the gain of ° direction descend quite a lot of but improve during than elevation angle 0deg quite a lot of.But least gain is-8.0dBi, and is abundant not, can't obtain practical sufficient directional characteristic.
Directional characteristic in the horizontal plane of the SDARS antenna 13 in Figure 59 when the centre frequency 2338.75MHz of expression XM Radio frequency range and elevation angle 15deg, maximum gain be approximately 5.7dBi, least gain for approximately-5.8dBi, fluctuation for about 11.5dB and approximately the gain of 50 ° of directions for descending, and approximately 150 ° of directions and approximately-120 the gain of ° direction descend quite a lot of but improve during than elevation angle 0deg quite a lot of.But least gain is-5.8dBi, and is abundant not, can't obtain practical sufficient directional characteristic.
Like this, directional characteristic in antenna assembly shown in Figure 48 2 in the horizontal plane of the SDARS antenna 13 of reception XM Radio frequency range is not limited to satellite ripple (Satellite), surface wave (Terrestrial), and the directional characteristic during the low elevation angle can't obtain practical sufficient directional characteristic.But along with the elevation angle increases, directional characteristic improves.
Then, the height H from antenna base 10 that the lower surface of in the antenna assembly relevant with the present invention 1 the 1st coil 12c and the 2nd coil 12d is described is made as the approximately reason more than the 38mm.The height from antenna base 10 that is illustrated in Figure 60 in the antenna assembly relevant with the present invention 1 lower surface of the 1st coil 12c ' and the 2nd coil 12d ' reduces the ground configuration and changes to the approximately structure of the antenna assembly 3 of the height H b of 31.5mm.
Here, the electrical characteristics with the antenna assembly 3 shown in Figure 60 are illustrated among Figure 61～Figure 78.In this case, the height H b from antenna base 10 of the lower surface of the 1st coil 12c ' and the 2nd coil 12d ' is made as approximately 31.5mm, is made as identical with antenna assembly 1 about other size etc.
The gain characteristic with respect to the mean value at the elevation angle of the TEL AMPS antenna when in Figure 61, being illustrated in the lower frequency limit 824MHz of AMPS frequency range in the antenna assembly 3 and upper limiting frequency 894MHz.This mean value is the mean value of the gain in the horizontal plane interior orientation characteristic.When reference Figure 61, obtain when being 0deg and 824MHz at the elevation angle approximately-2.0dBi, when 894MHz, obtain approximately-average gain of 2.8dBi, and along with the elevation angle is increased to 5,10,15,20,25,30deg, average gain also rises.Obtain approximately 2.9dBi when being 30deg and 824MHz at the elevation angle, when 894MHz, obtain the approximately good average gain of 2.4dBi.TEL_AMPS antenna in the antenna assembly 3, frequency become higher and, the elevation angle becomes less, average gain more descends.In addition, TEL_AMPS antenna in the antenna assembly 1 relevant with the present invention is in the roughly integral body of the elevation angle 0～30deg, the average gain of comparing the frequency of high-frequency domain with lower frequency region is improved, but in the TEL_AMPS of antenna assembly 3 antenna, in the roughly integral body of the elevation angle 0～30deg, the average gain of comparing with lower frequency region in the frequency of high-frequency domain descends.That is, when being made as approximately 31.5mm as the height H b that reduces the 1st coil 12c ' and the 2nd coil 12d ', the average gain of the high-frequency domain of AMPS frequency range descends.
Then, in Figure 62, be illustrated in the antenna assembly 3 shown in Figure 60 the gain characteristic with respect to the mean value at the elevation angle of the lower frequency limit 1850MHz of PCS frequency range and the TEL_PCS antenna of upper limiting frequency 1990MHz.This mean value is the mean value of the gain of horizontal plane interior orientation characteristic.When reference Figure 62, obtain when being 0deg and 1850MHz at the elevation angle approximately-0.8dBi, when 1990MHz, obtain approximately-average gain of 0.7dBi, along with the elevation angle is increased to 5,10,15,20deg, average gain also rises, but saturated when about 20deg, and along with become 25,30deg and average gain descends.Obtain approximately 3.9dBi when being 20deg and 1850MHz at the elevation angle, when 1990MHz, obtain the approximately good average gain of 4.7dBi.But, when with in the PCS frequency range of the TEL_PCS antenna in the antenna assembly 3 with respect to the average gain of the elevation angle 0～30deg and the TEL_PCS antenna ratio in the antenna assembly of the present invention 1 than the time, confirm as that average gain descends in about 1910MHz～1990MHz.That is, when being made as approximately 31.5mm as the height H b that reduces the 1st coil 12c ' and the 2nd coil 12d ', along with becoming high-frequency domain, average gain descends in the PCS frequency range.
Like this, when being made as approximately 31.5mm as the height H b that reduces the 1st coil 12c ' and the 2nd coil 12d ', average gain in the high-frequency domain of AMPS frequency range descends, and average gain descends along with becoming high-frequency domain in the PCS frequency range, therefore, in the antenna assembly relevant with the present invention 1, the height H of the 1st coil 12c and the 2nd coil 12d is made as approximately more than the 38mm.
Then, in Figure 63～Figure 78, be illustrated in the antenna assembly 3 shown in Figure 60 the directional characteristic in the horizontal plane of the directional characteristic in the horizontal plane of the TEL_AMPS antenna when the lower frequency limit 824MHz of AMPS frequency range and upper limiting frequency 894MHz and the elevation angle 0,10,20,30deg and the TEL_PCS antenna when the lower frequency limit 1850MHz of PCS frequency range and upper limiting frequency 1990MHz and the elevation angle 0,10,20,30deg.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 63 when the lower frequency limit 824MHz of expression AMPS frequency range and elevation angle 0deg, obtain maximum gain and be approximately-1.5dBi, least gain for approximately-2.5dBi and fluctuation are the about good directional characteristic of the roughly astaticism of 1.0dB.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 64 when the upper limiting frequency 894MHz of expression AMPS frequency range and elevation angle 0deg, obtain maximum gain and be approximately-1.8dBi, least gain for approximately-3.9dBi and fluctuation are the about good directional characteristic of the roughly astaticism of 2.1dB.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 65 when the lower frequency limit 1850MHz of expression PCS frequency range and elevation angle 0deg, obtain maximum gain and be about 0.9dBi, least gain for approximately-4.4dBi, fluctuation be about 5.3dB and approximately 110 ° of directions and approximately-70 directional characteristic of the substantially elliptical that descends of the gain of ° direction.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 66 when the upper limiting frequency 1990MHz of expression PCS frequency range and elevation angle 0deg, obtain maximum gain and be about 1.5dBi, least gain for approximately-5.7dBi, fluctuation be about 7.2dB and approximately 120 ° of directions and approximately-75 directional characteristic of the substantially elliptical that descends of the gain of ° direction.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 67 when the lower frequency limit 824MHz of expression AMPS frequency range and elevation angle 10deg obtains maximum gain and is approximately 0.6dBi, least gain and be approximately 0.0dBi and fluctuation and is the about good directional characteristic of the roughly astaticism of 0.6dB.Improve during the 0deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 68 when the upper limiting frequency 894MHz of expression AMPS frequency range and elevation angle 10deg, obtain maximum gain and be approximately 0.5dBi, least gain for approximately-0.8dBi, fluctuation be the about good directional characteristic of the roughly astaticism of 1.3dB.Improve during the 0deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 69 when the lower frequency limit 1850MHz of expression PCS frequency range and elevation angle 10deg, obtain maximum gain and be about 3.6dBi, least gain for approximately-1.6dBi, fluctuation be about 5.9dB and approximately 110 ° of directions and approximately-70 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Improve during the 0deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 70 when the upper limiting frequency 1990MHz of expression PCS frequency range and elevation angle 10deg, obtain maximum gain and be about 4.6dBi, least gain for approximately-1.8dBi, fluctuation be about 6.4dB and approximately 120 ° of directions and approximately-70 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Improve during the 0deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 71 when the lower frequency limit 824MHz of expression AMPS frequency range and elevation angle 20deg obtains maximum gain and is approximately 2.9dBi, least gain and be approximately 1.6dBi and fluctuation and is the about good directional characteristic of the roughly astaticism of 1.3dB.Improve during the 10deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 72 when the upper limiting frequency 894MHz of expression AMPS frequency range and elevation angle 20deg obtains maximum gain and is approximately 2.1dBi, least gain and be approximately 1.2dBi and fluctuation and is the about good directional characteristic of the roughly astaticism of 0.9dB.Improve during the 10deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 73 when the lower frequency limit 1850MHz of expression PCS frequency range and elevation angle 20deg obtains maximum gain and is approximately 5.9dBi, least gain and be about 0.7dBi, fluctuation and is about 5.2dB and approximately 120 ° of directions and approximately-70 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Improve during the 10deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 74 when the upper limiting frequency 1990MHz of expression PCS frequency range and elevation angle 20deg obtains maximum gain and is approximately 6.6dBi, least gain and be about 0.3dBi, fluctuation and is about 6.3dB and approximately 120 ° of directions and approximately-80 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Improve during the 10deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 75 when the lower frequency limit 824MHz of expression AMPS frequency range and elevation angle 30deg obtains maximum gain and is approximately 3.5dBi, least gain and be approximately 2.3dBi and fluctuation and is the about good directional characteristic of the roughly astaticism of 1.2dB.Improve during the 20deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_AMPS antenna in Figure 76 when the upper limiting frequency 894MHz of expression AMPS frequency range and elevation angle 30deg obtains maximum gain and is approximately 2.8dBi, least gain and be approximately 1.8dBi and fluctuation and is the about good directional characteristic of the roughly astaticism of 1.0dB.Improve during the 20deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 77 when the lower frequency limit 1850MHz of expression PCS frequency range and elevation angle 30deg, obtain maximum gain and be about 5.3dBi, least gain for approximately-1.9dBi, fluctuation be about 7.2dB and approximately 120 ° of directions and approximately-100 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Descend during the 20deg of the ratio of gains elevation angle.
Directional characteristic in the horizontal plane of the TEL_PCS antenna in Figure 78 when the upper limiting frequency 1990MHz of expression PCS frequency range and elevation angle 30deg, obtain maximum gain and be about 5.0dBi, least gain for approximately-1.9dBi, fluctuation be about 6.9dB and approximately 130 ° of directions and approximately-100 directional characteristic of the substantially elliptical that descends of the gain of ° direction.Descend during the 20deg of the ratio of gains elevation angle.
When reference Figure 63～Figure 78 as can be known: be made as at the height H b that reduces the 1st coil 12c ' and the 2nd coil 12d ' in the situation of about 31.5mm, directional characteristic in the horizontal plane in the full AMPS frequency range of TEL_AMPS antenna obtains when the 0～30deg of the elevation angle the roughly good directional characteristic of astaticism, but the average gain in the high-frequency domain of AMPS frequency range descends.In addition we know: the directional characteristic in the horizontal plane in the full PCS frequency range of TEL_PCS antenna is oval-shaped directional characteristic when the 0～30deg of the elevation angle, and average gain descends along with becoming high-frequency domain in the PCS frequency range.
Utilizability on the industry
In the antenna assembly relevant with the present invention 1 described above, SDARS antenna 13 is made as the few and good directional characteristic of deviation as the receptivity of satellite ripple in horizontal plane in the low elevation angle till 20deg, so as can to receive satellite ripple from satellite station, from (the Gap Filler: the surface wave same frequency forwarding unit of digital television signal) of ground station.In addition, in order to prevent electrical interference, arranging from the 1st pattern 12a is that interval more than λ/4 (approximately 32mm) configures SDARS antenna 13.
In addition, gps antenna 14 can be from being positioned at overhead a plurality of satellite received signals, therefore there is no need to guarantee the receptivity at the low elevation angle of this degree.Thereby being configured in the ceiling direction does not have between the antenna substrate 12 and SDARS antenna 13 of screen.In this case, the rear configuration gps antenna 14 that also can not have in the ceiling direction antenna substrate 12 of screen.
In addition, TEL_PCS antenna and TEL_AMPS antenna are made as unipole antenna, utilize in conversation, the data communication/emergency annunciation system etc. in horizontal plane.In order to be adapted to this, in the antenna assembly relevant with the present invention, in horizontal plane, obtain astaticism or near the directional characteristic of astaticism.In addition, in the 2GHz frequency range of the short PCS frequency range of electrical wavelength, GSM1800 frequency range, worry affects directionality by the metal object that is positioned at the antenna periphery, and the choking-winding that therefore is made of the 1st coil 12c, the loading coil that is made of the 2nd coil 12d are configured to be positioned at the top of the few TEL_AMPS antenna of CURRENT DISTRIBUTION.
And in addition, the AM/FM antenna is made as unipole antenna, becomes approximately 1/45 the height of the wavelength of FM frequency, the antenna height step-down.Thereby, only be difficult to by the 1st pattern 12a～the 3rd pattern 12e and the 1st coil 12c and carry out resonance in desired FM frequency.Therefore, in order to obtain electric coupling the loading coil that is made of the 2nd coil 12d is set.Thus, in AM/FM antenna integral body, carry out resonance in the FM frequency.
In addition, in the AM frequency range, because the AM/FM antenna effect in capacitive areas of its frequency of utilization.Thereby, also can be made as the capacitive load type to obtain good receptivity.
In addition, the choking-winding that is made of the 1st coil 12c is for following and arrange: use self-resonance in the 900MHz frequency range of AMPS frequency range or GSM900 frequency range impedance to be made as high, with the 3rd pattern 12e high frequency cutoff.That is, the 1st coil 12c becomes the trap coil of 900MHz frequency range.In addition, in the 1st coil 12c and the 2nd coil 12d, induce in the situation of large electric current, cause inductance performance to change by magnetic coupling, therefore be configured with making mutual orthogonality of center shaft.
Claims (3)
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| Application Number | Priority Date | Filing Date | Title |
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| JP2010-273794 | 2010-12-08 | ||
| JP2010273794A JP4913900B1 (en) | 2010-12-08 | 2010-12-08 | Antenna device |
| PCT/JP2011/069516 WO2012077389A1 (en) | 2010-12-08 | 2011-08-30 | Antenna device |
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| CN102893456A true CN102893456A (en) | 2013-01-23 |
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| CN2011800035560A Pending CN102893456A (en) | 2010-12-08 | 2011-08-30 | Antenna device |
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| JP (1) | JP4913900B1 (en) |
| CN (1) | CN102893456A (en) |
| WO (1) | WO2012077389A1 (en) |
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| CN108028458A (en) * | 2015-09-14 | 2018-05-11 | 株式会社友华 | Antenna assembly |
| CN108475849A (en) * | 2016-02-19 | 2018-08-31 | 株式会社友华 | Antenna assembly |
| CN110024220A (en) * | 2016-12-06 | 2019-07-16 | 株式会社友华 | Antenna assembly |
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| JP6343230B2 (en) * | 2013-12-11 | 2018-06-13 | 原田工業株式会社 | Compound antenna device |
| JP5876863B2 (en) * | 2013-12-11 | 2016-03-02 | 原田工業株式会社 | Compound antenna device |
| WO2017090771A1 (en) * | 2015-11-27 | 2017-06-01 | 原田工業株式会社 | Low-profile antenna device |
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| CN113471719A (en) * | 2016-02-19 | 2021-10-01 | 株式会社友华 | Antenna device |
| CN113471719B (en) * | 2016-02-19 | 2025-01-07 | 株式会社友华 | Antenna device |
| CN108475849A (en) * | 2016-02-19 | 2018-08-31 | 株式会社友华 | Antenna assembly |
| CN113690579A (en) * | 2016-02-19 | 2021-11-23 | 株式会社友华 | Antenna device |
| CN113690579B (en) * | 2016-02-19 | 2024-08-16 | 株式会社友华 | Antenna device |
| US11855340B2 (en) | 2016-02-19 | 2023-12-26 | Yokowo Co., Ltd. | Antenna device |
| CN108475849B (en) * | 2016-02-19 | 2022-04-29 | 株式会社友华 | Antenna device |
| CN114639953A (en) * | 2016-02-19 | 2022-06-17 | 株式会社友华 | Antenna device |
| US11456524B2 (en) | 2016-02-19 | 2022-09-27 | Yokowo Co., Ltd. | Antenna device |
| CN107768799A (en) * | 2016-08-19 | 2018-03-06 | 瑞士电信公司 | Antenna system |
| CN110024220A (en) * | 2016-12-06 | 2019-07-16 | 株式会社友华 | Antenna assembly |
| CN110024220B (en) * | 2016-12-06 | 2022-03-11 | 株式会社友华 | Antenna device |
| CN113725591A (en) * | 2016-12-06 | 2021-11-30 | 株式会社友华 | Antenna device |
| CN111103604A (en) * | 2018-10-26 | 2020-05-05 | 鲍臻 | Long hole type single satellite receiving positioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4913900B1 (en) | 2012-04-11 |
| WO2012077389A1 (en) | 2012-06-14 |
| JP2012124714A (en) | 2012-06-28 |
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