CN209249706U - Broadband dual-frequency common reflector array - Google Patents
Broadband dual-frequency common reflector array Download PDFInfo
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- CN209249706U CN209249706U CN201920015722.2U CN201920015722U CN209249706U CN 209249706 U CN209249706 U CN 209249706U CN 201920015722 U CN201920015722 U CN 201920015722U CN 209249706 U CN209249706 U CN 209249706U
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Abstract
The utility model proposes a kind of broadband dual-frequency common reflector arrays, it include: the multiple low-frequency range antenna elements and multiple high band antenna elements for reflecting floor and being arranged on the reflection floor, multiple low-frequency range antenna element and multiple high band antenna element are vertically fixed on the reflection floor, multiple low-frequency range antenna element is used for transmission center frequency point compared with low signal, and multiple high band antenna element is used for transmission center frequency point higher signal；Wherein, the two sides of each low-frequency range antenna element are respectively disposed with a high band antenna element, the height of the low-frequency range antenna element is less than the height of the high band antenna element, and the signal transmission of the low-frequency range antenna element and the signal transmission of the high band antenna element will not influence each other.Requirement of the mobile communcations system to phased array antenna of new generation can be met well.
Description
Technical field
The utility model relates to technical field of electronic communication, especially related with the aerial array that common reflector is constituted.
Background technique
In the Satellite Communication Systems such as vehicle-mounted, airborne, carrier-borne, since motorization minimizes to obtain demand, antenna is generally required
Has the characteristics that good polarization characteristic, high gain, high directivity, small in size and light-weight.Reflector antenna is with high-gain and very
Strong directionality but it is at high cost, volume is big, inconvenient especially in mobile communication.
In the information age, the mankind simultaneously are unsatisfactory for obtaining information in fixed place, but can automobile, wheel during exercise
Information is obtained in ship and aircraft.Phased array antenna is grown up on the basis of array antenna, it is advantageous that scanning speed
Degree is fast, and wave beam control flexibly, can search for simultaneously tracking satellite signal on mobile carrier.
With the rapid development of communication technology of satellite, the reduction of phased array antenna cost, the simplification of structure is easily installed resistance to
With as one important topic of communication technology of satellite.
Utility model content
The technical problem to be solved by the present invention is in view of the above drawbacks of the prior art, propose that a kind of broadband is double
Frequency common reflector array can meet requirement of the mobile communcations system to phased array antenna of new generation well.
It includes: to provide a kind of broadband dual-frequency Shared aperture day that the utility model, which solves technical solution used by its technical problem,
Linear array, comprising: reflection floor and the multiple low-frequency range antenna elements and multiple high band antennas that are arranged on the reflection floor
Unit, multiple low-frequency range antenna element and multiple high band antenna element are vertically fixed on the reflection floor, this is more
A low-frequency range antenna element is used for transmission center frequency point compared with low signal, and multiple high band antenna element is used for transmission center frequency point
Higher signal；Wherein, the two sides of each low-frequency range antenna element are respectively disposed with a high band antenna element, the low-frequency range day
The height of line unit is less than the height of the high band antenna element, the signal transmission of the low-frequency range antenna element and the high band day
The signal transmission of line unit will not influence each other.
Compared with prior art, the broadband dual-frequency common reflector array of the utility model, by reducing low-frequency range antenna
The height of unit increases the height of high band antenna element, so that the antenna element of two kinds of frequency ranges in a limited space can
Realize Shared aperture installation, the two can work normally, and can meet mobile communcations system well to phased array antenna of new generation
Requirement.
Detailed description of the invention
Fig. 1 is the stereochemical structure signal of the utility model broadband dual-frequency common reflector array embodiment one.
Fig. 2 is the side view structure signal of the utility model broadband dual-frequency common reflector array embodiment one.
Fig. 3 is the increasing of low-frequency range antenna element in the utility model broadband dual-frequency common reflector array array embodiment one
Beneficial curve.
Fig. 4 is the increasing of one medium-high frequency section antenna element of the utility model broadband dual-frequency common reflector array array embodiment
Beneficial curve.
Fig. 5 is the stereochemical structure signal of the utility model broadband dual-frequency common reflector array embodiment two.
Fig. 6 is stereochemical structure signal local in Fig. 5.
Fig. 7, Fig. 8 and Fig. 9 are low-frequency range days in the utility model broadband dual-frequency common reflector array array embodiment two
The structural representation of three conductive metal layers of line unit.
Figure 10, Figure 11 and Figure 12 are two medium-high frequency sections of the utility model broadband dual-frequency common reflector array array embodiment
The structural representation of three conductive metal layers of antenna element.
Figure 13 is low-frequency range antenna element in the utility model broadband dual-frequency common reflector array array embodiment two
Standing-wave ratio curve.
Figure 14 is two medium-high frequency section antenna element of the utility model broadband dual-frequency common reflector array array embodiment
Standing-wave ratio curve.
Figure 15 is the stereochemical structure signal of the utility model broadband dual-frequency common reflector array embodiment three.
Wherein, the reference numerals are as follows: 10,1 low-frequency range day of 10a, 10b broadband dual-frequency common reflector array array
2 high band antenna element 3 of line unit reflects floor a low-frequency range antenna element a1 and prints the first gap radiation fin a12
Strip line a42 microstrip line a5 reflects in the a2 coupling piece a3 balancer a4 transmission line a41 medium of the second gap a13
Floor a51 the first reflection bar a52 the second reflection bar a53 the first groove a54 the second groove a6 opening b high band
The antenna element gap the b1 printing floor b11 gap b12 b2 radiation fin b21 the first arm b22 the second arm b3 is flat
Weighing apparatus b4 transmission line b5 reflects floor b6 opening c and reflects floor.
Specific embodiment
Where the construction and feature of the utility model is described in detail, hereby lifts preferred embodiments below and attached drawing is cooperated to say
It is bright as follows.
Referring to Fig. 1 and Fig. 2, Fig. 1 is the stereochemical structure of the utility model broadband dual-frequency common reflector array embodiment one
Signal.Fig. 2 is the side view structure signal of the utility model broadband dual-frequency common reflector array embodiment one.The utility model mentions
A kind of broadband dual-frequency common reflector array 10 out, comprising: reflection floor 3, and it is arranged in same reflects on floor 3 four
A low-frequency range antenna element 1 and eight high band antenna elements 2.
It is understood that four corresponding frequency ranges of low-frequency range antenna element 1 are corresponding with eight high band antenna elements 2
Frequency range mutually separates.In some embodiments, four corresponding frequency ranges of low-frequency range antenna element 1 are identical；Eight high band days
The corresponding frequency range of line unit 2 is identical.Namely: four low-frequency range antenna elements 1 are likewise, corresponding to the same low frequency
Section, eight high band antenna elements 2 are likewise, corresponding to the same high band.
In further embodiments, four corresponding frequency ranges of low-frequency range antenna element 1 can be different, namely: four
A low-frequency range antenna element 1 needs not be likewise, can correspond to multiple low-frequency ranges (most four)；Equally, eight high bands
The corresponding frequency range of antenna element 2 can be it is different, namely: eight high band antenna elements 2 need not be likewise, can be right
It should be in multiple high bands (most eight).Corresponding to such situation, the broadband dual-frequency common reflector array of the utility model
10 can be understood as broadband multi-frequency common reflector array, these multifrequency common reflectors divide into two groups, frequency range lower one
Group is handled by four low-frequency range antenna elements 1, and higher one group of frequency range is handled by eight high band antenna elements 2.
It is understood that low-frequency range antenna element 1 is made of dielectric-slab and the circuit being arranged on dielectric-slab.High band
Antenna element 2 is made of dielectric-slab and the circuit being arranged on dielectric-slab.Reflection floor 3 is made of the big plate of the metal of monolith, or
Person, reflection floor 3 are made of several metal platelets being stitched together.
Four low-frequency range antenna elements 1 and the interspersed placement of eight high band antenna elements 2, while guaranteeing respective battle array spacing
It is constant, namely: the constant gap of four low-frequency range antenna elements 1, the constant gap of eight high band antenna elements 2.It is specific and
Speech, the battle array spacing of eight high band antenna elements 2 is the half of the battle array spacing of four low-frequency range antenna elements 1.Every two height
Band antenna unit 2 places a low-frequency range antenna element 1.
The height of high band antenna element 2 is higher than the height of low-frequency range antenna element 1, so that high band antenna element 2
Electromagnetic wave is able to through low-frequency range antenna element 1, and high band antenna element 2 is not influenced by frequency range unit 1.It is understood that
It is that the height needs that the height of high band antenna element 2 is higher than low-frequency range antenna element 1 are moderate, for example, high band antenna
The height of unit 2 is higher by 1/4 wavelength or so of the range in high frequency of the height of low-frequency range antenna element 1.
The wavelength of the electromagnetic wave of low-frequency range antenna element 1 is enough long, so that 1 electromagnetic wave of low-frequency range antenna element is able to pass through height
Band antenna unit 2, low-frequency range antenna element 1 are not influenced by high band antenna element 2.So as to well compact
Realize heterogeneous radiation in space.
It is low-frequency range antenna in the utility model broadband dual-frequency common reflector array array embodiment one referring to Fig. 3, Fig. 3
The gain curve of unit.As it can be seen that antenna gain of the broadband dual-frequency common reflector array 10 of the utility model for low-frequency range
For 20.3dB.
Referring to fig. 4, Fig. 4 is one medium-high frequency section antenna of the utility model broadband dual-frequency common reflector array array embodiment
The gain curve of unit.As it can be seen that antenna gain of the broadband dual-frequency common reflector array 10 of the utility model for high band
For 26.5dB.
In conjunction with Fig. 3 and Fig. 4, the spoke of two kinds of frequency ranges corresponding to the broadband dual-frequency common reflector array 10 of the utility model
It is all very normal to penetrate performance, two kinds of antennas of low-frequency range and high band under Shared aperture, which may be implemented, to be worked normally, and it is linear
Energy index is unaffected.
Compared with prior art, the broadband dual-frequency common reflector array 10 of the utility model is by dexterously making low-frequency range
The height of antenna element 1 is lower than the height of high band antenna element 2, and high band antenna element 2 is enabled to be interspersed in low-frequency range
In the array of antenna element 1, the electromagnetic wave of high band antenna element 2 is allowed to be passed through, high band antenna element 2 is not by low-frequency range
The influence of antenna element 1；Meanwhile so that the electromagnetic wavelength of low-frequency range antenna element 1 is enough long, the electricity of low-frequency range antenna element 1
Magnetic wave is passed through, and low-frequency range antenna element 1 is not influenced by high band antenna element 2, so as to well compact
Realize dual frequency radiation in space.
Referring to figs. 5 and 6, Fig. 5 is the stereochemical structure of the utility model broadband dual-frequency common reflector array embodiment two
Signal.Fig. 6 is stereochemical structure signal local in Fig. 5.The utility model proposes a kind of broadband dual-frequency common reflector arrays
10a, comprising: reflection floor c, and the four low-frequency range antenna element a and eight high frequencies that are arranged on same reflection floor c
Section antenna element b.
In conjunction with illustrating a conductive metal layer (first being arranged on medium substrate referring to Fig. 7, Fig. 8 and Fig. 9, Fig. 7
Side surface layer), Fig. 9 illustrates another conductive metal layer (second side surface layer) being arranged on medium substrate, and Fig. 8 is illustrated
Another conductive metal layer (intermediate course) on medium substrate is set.Low-frequency range antenna element a includes: the medium of strip
Printing radiation fin a1 on medium substrate, coupling piece a2, balancer (balun) a3 and transmission line a4, Yi Jiyu is arranged in substrate
Medium substrate is vertically fixed on reflection floor a5 together.Medium substrate is rectangular.
Printing radiation fin a1 is formed on copper in covering for the first side surface of medium substrate.Corresponding to each printing radiation fin
A1 is provided with an opening a6 on medium substrate.
It is noted that multiple printing radiation fin a1 can print on medium substrate, N member linear array is formed, N is positive whole
Several namely N number of printing radiation fin a1 Cheng Zhen arranged in a straight line.In addition, multiple printing radiation fin a1 can print on medium substrate, group
At the face battle array of N × M, N and M are positive integer.
Specifically, having the first gap a12 between two printing radiation fin a1 arranged in a straight line；Each printing radiation fin
There is the second gap a13 between the Liang Ge branch of a1.
Coupling piece a2 is formed on copper in the covering for intermediate course for being located at medium substrate.Coupling piece a2 corresponds to two printing spokes
The first gap a12 between piece a1 is penetrated, coupling is formed.The width of coupling piece a2 is greater than the width of the first gap a12.
Balancer a3 is covered in two parts of the intermediate course and the second side surface that are located at medium substrate to be formed on copper.Balancer
A3 is located at the top of opening a6, corresponding to the second gap a13 between the Liang Ge branch of printing radiation fin a1, forms coupling.
Transmission line a4 is covered in two parts of the intermediate course and the second side surface that are located at medium substrate to be formed on copper.Specifically
Ground, transmission line a4 is by strip line a41 in the medium for the intermediate course for being located at medium substrate and positioned at second side table of medium substrate
The microstrip line a42 in face is constituted.
Reflection floor a5 is made of two metal strips a51, a52, and two metal strips a51, a52 are symmetrical.Metal strip a51's
Centre, which opens up, has the gap a54, and the centre of metal strip a52, which opens up, has the gap a53, and two gap a54, a53 are symmetrical.Microstrip line a42 exists
Cabling between two gap a54, a53.
In conjunction with illustrating a conductive metal layer being arranged on medium substrate referring to Figure 10, Figure 11 and Figure 12, Figure 10
(the first side surface layer), Figure 12 illustrate another conductive metal layer (second side surface layer) being arranged on medium substrate, Figure 11
Illustrate another conductive metal layer (intermediate course) being arranged on medium substrate.High band antenna element b includes: strip
Printing floor b1, radiation fin b2, balancer (balun) b3 and and transmission line on medium substrate is arranged in the medium substrate of shape
B4, and reflection floor b5 together is vertically fixed on medium substrate.Medium substrate t shape.
Printing floor b1 is formed on copper in the first side surface and covering for the second side surface for being located at medium substrate.It is specific and
Speech, the printing floor b1 positioned at the first side surface of medium substrate is rectangular, and top has gap b11, is located at medium substrate
The second side surface printing floor b1 it is rectangular, top have gap b12.
It is noted that multiple printing floor b1 can print on medium substrate, N member linear array is formed, N is positive whole
Several namely N number of printing floor b1 Cheng Zhen arranged in a straight line.In addition, multiple printing floor b1 can print on medium substrate, N is formed
The face battle array of × M, N and M are positive integer.Between two printing floor b1, an opening b6 is correspondingly arranged on medium substrate.
Radiation fin b2 is formed on copper in the covering for intermediate course for being located at medium substrate.Specifically, radiation fin b2 is by mutual
Liang Ge branch b21, the b22 at interval are constituted.Wherein, branch b21 is connected with transmission line b4, and branch b22 is connected with printing floor b1.
It is understood that branch b21 and branch b22 can be alternateed, and namely: branch b22 is connected with transmission line b4, branch b21
It is connected with printing floor b1.
Balancer b3 is by second of gap b11 and medium substrate on the printing floor b1 of the first side surface of medium substrate
Gap b12 on the printing floor b1 of side surface is constituted.
Transmission line b4 is formed on copper in the covering for intermediate course for being located at medium substrate.Transmission line b4 is by processing, with medium
First side surface of substrate is connected with the two sides printing floor b1 of the second side surface, forms the hard transmission line an of medium.
Reflection floor b5 is made of two metal strips b51, b52.Reflection floor b5 and reflection floor a5 fold fixation.
Referring to Fig. 5, in a specific implementation, the broadband dual-frequency common reflector array 10a of the utility model is low frequency
The Shared aperture array of 4 × 4 array antenna of wave band and 8 × 8 array antenna of high frequency antenna composition.Wherein, low-frequency band center frequency
Rate f1=13Ghz, lower side frequency f0=8Ghz, upper side frequency f2=18Ghz；High frequency band centre frequency f1=35Ghz, lower side frequency f13=
30Ghz, upper side frequency f5=40Ghz.Low-frequency range antenna element a in the broadband dual-frequency common reflector array 10a of the utility model
Gain curve is shown in that Fig. 3, the gain curve of high band antenna element b are shown in Fig. 4.
Specifically, reflecting floor a5 36.8 × 36.8mm of size in low-frequency range antenna element a, medium substrate is selected
FR4350B material, relative dielectric constant 3.66, thickness 0.8mm, medium substrate length and width are 36.8 × 9.2mm.Radiation fin a1 by
Copper composition is covered in the upper surface (first side) of medium substrate, and the transmission line a4 wide for feeding face is 1.46mm.Radiating surface is by radiation fin
A1, coupling piece a2 and balancer a3 composition, radiation fin a1 a length of 4.4mm, width 2mm, coupling piece a2 a length of 1mm, width 2mm.
Spacing between two low-frequency range antenna element a is 9.2mm.
In high band antenna element b, floor b5 36.8 × 36.8mm of size is reflected, medium substrate selects FR4350B material
Material, relative dielectric constant 3.66, thickness 0.8mm, medium substrate length and width are 36.8 × 9.2mm.Radiation floor b1 is by medium substrate
Upper and lower surfaces (first side and second side) cover copper composition, feed face transmission line b4 wide be 0.36mm.Radiation
Face is made of radiation fin b2 and balancer b3, radiation fin b2 a length of 1.5mm, width 0.3mm.
It is the utility model broadband dual-frequency common reflector array, low-frequency range in array embodiment two referring to Figure 13, Figure 13
The standing-wave ratio curve of antenna element.As it can be seen that the antenna impedance band of low-frequency range antenna element a is wider than 75%, gain also can in bandwidth
Meet the needs of practical application.
It is the utility model broadband dual-frequency common reflector array, two medium-high frequency section of array embodiment referring to Figure 14, Figure 14
The standing-wave ratio curve of antenna element.As it can be seen that the antenna impedance band of high band antenna element b is wider than 25%, gain also can in bandwidth
Meet the needs of practical application.
Compared with prior art, the broadband dual-frequency common reflector array 10a group battle array of the utility model is simple and compact for structure,
It is versatile, it is easy to accomplish, while cost is greatly reduced, it is suitble to massive phased array antenna.
Show referring to the stereochemical structure that Figure 15, Figure 15 are the utility model broadband dual-frequency common reflector array embodiments three
Meaning.The broadband dual-frequency common reflector array 10b of the utility model is by two broadband dual-frequencies common reflector array 10a above-mentioned
It constitutes.It is understood that the needs of practical application are depended on, it can be by several broadband dual-frequency common reflector arrays 10a
It is extended to bigger array antenna.
More than, the only preferred embodiment of the utility model, it is intended that further illustrate the utility model, rather than it is carried out
It limits.All simple replacements carried out according to above-mentioned text and attached drawing disclosure of that, all in the rights protection of this patent
The column of range.
Claims (10)
1. a kind of broadband dual-frequency common reflector array characterized by comprising reflection floor and setting are on the reflection floor
Multiple low-frequency range antenna elements and multiple high band antenna elements, multiple low-frequency range antenna element and multiple high band day
Line unit is vertically fixed on the reflection floor, and multiple low-frequency range antenna element is used for transmission center frequency point compared with low signal,
Multiple high band antenna element is used for transmission center frequency point higher signal；Wherein, the two sides of each low-frequency range antenna element
It is respectively disposed with a high band antenna element, the height of the low-frequency range antenna element is less than the height of the high band antenna element,
The signal of the low-frequency range antenna element transmits and the transmission of the signal of the high band antenna element will not influence each other.
2. broadband dual-frequency common reflector array according to claim 1, it is characterised in that: multiple low-frequency range antenna list
The battle array constant gap of member；The battle array constant gap of multiple high band antenna element.
3. broadband dual-frequency common reflector array according to claim 1, it is characterised in that: the low-frequency range antenna element is
It is made of first medium substrate and the first circuit being arranged on the first medium substrate, which vertically fixes
On the reflection floor；The high band antenna element be by second medium substrate and be arranged on the second medium substrate second
Circuit is constituted, which is vertically fixed on the reflection floor；The height of the first medium substrate be less than this
The height of second medium substrate.
4. broadband dual-frequency common reflector array according to claim 3, it is characterised in that: the first medium substrate is in length
Rectangular-shaped, three conductions of first circuit on two surface layers and an intermediate course for being located at the first medium substrate of bar shaped
It is formed on metal layer；The elongated T shape of the second medium substrate, the second circuit are being located at the two of the second medium substrate
It is formed on three conductive metal layers of a surface layer and an intermediate course.
5. broadband dual-frequency common reflector array according to claim 4, it is characterised in that: first circuit is by printing spoke
Piece, coupling piece, balancer and transmission line is penetrated to constitute；The second circuit is by printing floor, radiation fin, balancer and transmission line structure
At.
6. broadband dual-frequency common reflector array according to claim 5, it is characterised in that: the printing radiation fin is being located at
Covering for first side surface of the first medium substrate is formed on copper；There is the first seam between two printing radiation fins arranged in a straight line
Gap；There is the second gap between the Liang Ge branch of each printing radiation fin；The coupling piece is in being located at the first medium substrate
Between covering for interlayer formed on copper, which corresponds to first gap, form coupling, the width of the coupling piece be greater than this first
The width in gap；The balancer covers shape on copper in two parts of the intermediate course and the second side surface that are located at the first medium substrate
At the balancer corresponds to second gap, forms coupling；The transmission line be located at the first medium substrate intermediate course and
Two parts of second side surface cover to be formed on copper, and the transmission line is by band in the medium for the intermediate course for being located at the first medium substrate
Shape line and positioned at the second side surface of the first medium substrate microstrip line constitute.
7. broadband dual-frequency common reflector array according to claim 6, it is characterised in that: the low-frequency range antenna element pair
The reflection floor answered is made of two metal strips, and the centre of two metal strips, which opens up, to be had the gap, for the microstrip line cabling.
8. broadband dual-frequency common reflector array according to claim 5, it is characterised in that: the printing floor is being located at this
First side surface of second medium substrate and covering for the second side surface are formed on copper, and the printing floor is rectangular, and at top
With gap；The radiation fin is formed on copper in the covering for intermediate course for being located at the second medium substrate, and the radiation fin is by mutual
Every Liang Ge branch 2 constitute, one of branch is connected with the transmission line, another branch is connected with the printing floor；The balance
Device is covered and is formed on copper in two parts of the intermediate course and the second side surface that are located at the medium substrate, the balancer by be located at this
Gap on the printing floor of first side surface of second medium substrate and the print positioned at the second side surface of the second medium substrate
The gap brushed on floor is constituted.
9. broadband dual-frequency common reflector array according to claim 8, it is characterised in that: the low-frequency range antenna element pair
The reflection floor answered is made of two metal strips, and the centre of two metal strips, which opens up, to be had the gap, for the microstrip line cabling.
10. according to the described in any item broadband dual-frequency common reflector arrays of claim 5 to 9, it is characterised in that: correspond to every
A printing radiation fin is provided with an opening on the first medium substrate；Between two printing floors, the second medium
An opening is correspondingly arranged on substrate.
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| CN201920015722.2U CN209249706U (en) | 2019-01-06 | 2019-01-06 | Broadband dual-frequency common reflector array |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416215A (en) * | 2019-01-06 | 2020-07-14 | 苏州博海创业微系统有限公司 | Broadband double-frequency common-caliber antenna array |
| CN112864607A (en) * | 2019-11-28 | 2021-05-28 | 苏州博海创业微系统有限公司 | Broadband high-pass filtering antenna and antenna array based on SIW |
-
2019
- 2019-01-06 CN CN201920015722.2U patent/CN209249706U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111416215A (en) * | 2019-01-06 | 2020-07-14 | 苏州博海创业微系统有限公司 | Broadband double-frequency common-caliber antenna array |
| CN112864607A (en) * | 2019-11-28 | 2021-05-28 | 苏州博海创业微系统有限公司 | Broadband high-pass filtering antenna and antenna array based on SIW |
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