CN113764864A - Electronic device comprising an antenna arrangement - Google Patents
Electronic device comprising an antenna arrangement Download PDFInfo
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- CN113764864A CN113764864A CN202010484367.0A CN202010484367A CN113764864A CN 113764864 A CN113764864 A CN 113764864A CN 202010484367 A CN202010484367 A CN 202010484367A CN 113764864 A CN113764864 A CN 113764864A
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- 230000010287 polarization Effects 0.000 description 29
- 238000000034 method Methods 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 230000005855 radiation Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 230000005404 monopole Effects 0.000 description 2
- 230000008901 benefit 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
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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Abstract
The invention discloses an electronic device containing an antenna device, comprising: the electronic equipment comprises a main board and a bridge, the first antenna arm and the second antenna arm are respectively arranged along two adjacent orthogonal sides of a housing frame of the electronic equipment and are mutually connected at a right angle of the housing frame to form a connection point, the connection point is electrically connected to the ground of the main board of the electronic equipment, a first feed point and a second feed point are respectively arranged on the first antenna arm and the second antenna arm, and the first feed point and the second feed point are electrically connected with the bridge; the bridge is arranged on a mainboard of the electronic equipment and feeds the first antenna arm and the second antenna arm through the first feed point and the second feed point; the first antenna arm comprises a first high-frequency resonance arm and a first low-frequency resonance arm, the length of the first high-frequency resonance arm is smaller than that of the first low-frequency resonance arm, the second antenna arm comprises a second high-frequency resonance arm and a second low-frequency resonance arm, and the length of the second high-frequency resonance arm is smaller than that of the second low-frequency resonance arm.
Description
Technical Field
The invention relates to the field of electronic equipment, in particular to the field of electronic equipment with a wire device.
Background
In recent years, the use of electronic devices such as mobile phones, tablet computers, and wearable devices has been becoming increasingly popular, but the requirements of users still cannot be fully satisfied in terms of the received signal quality of the satellite positioning antenna of the electronic device, securing the positioning accuracy, and the like.
For example, for a mobile phone, due to the increase of mobile phone antennas, the space of the mobile phone is limited, and a mobile GNSS (Global Navigation Satellite System) antenna generally adopts a monopole or IFA antenna form, and the polarization mode is generally linear polarization; on the other hand, GNSS satellite signals are circularly polarized, resulting in loss of reception polarization efficiency, which directly limits improvement of satellite positioning accuracy, especially forming a restriction on high-precision RTK (Real-time kinematic) positioning with high requirements on signal quality.
On the other hand, although the professional GNSS communication electronic device antenna adopts dielectric ceramic or a quadrifilar helix antenna to realize circular polarization, the problem of overlarge volume exists, and the antenna cannot be well applied to communication electronic devices with high volume requirements.
Disclosure of Invention
The invention aims to provide electronic equipment comprising an antenna device, which can realize dual-frequency circular polarization and reduce occupied space, so that the electronic equipment not only has better positioning precision, but also does not increase the volume additionally. Furthermore, the performance of the dual-frequency GNSS antenna of the communication equipment is improved, so that the popularization of the RTK service in mass consumer mobile phone handheld terminal products is supported.
The application discloses an electronic device comprising an antenna arrangement comprising a first antenna arm and a second antenna arm, the electronic device comprising a main board and an electrical bridge, wherein,
the first antenna arm and the second antenna arm are respectively arranged along two adjacent orthogonal sides of a housing frame of the electronic device and are mutually connected at a right angle of the housing frame to form a connection point, wherein the connection point is electrically connected to the ground of a main board of the electronic device to be used as a common grounding point of the first antenna arm and the second antenna arm, a first feed point and a second feed point are respectively arranged on the first antenna arm and the second antenna arm, and the first feed point and the second feed point are electrically connected with the bridge; and the number of the first and second electrodes,
the bridge is arranged on a main board of the electronic equipment, and feeds the first antenna arm and the second antenna arm through the first feed point and the second feed point; wherein
The first antenna arm comprises a first high-frequency resonance arm and a first low-frequency resonance arm, the length of the first high-frequency resonance arm is smaller than that of the first low-frequency resonance arm, one end of the first high-frequency resonance arm is connected with one end of the first low-frequency resonance arm, the second antenna arm comprises a second high-frequency resonance arm and a second low-frequency resonance arm, the length of the second high-frequency resonance arm is smaller than that of the second low-frequency resonance arm, and one end of the second high-frequency resonance arm is connected with one end of the second low-frequency resonance arm.
In a preferred embodiment, the first low-frequency resonant arm, and/or the first high-frequency resonant arm, and/or the second low-frequency resonant arm, and/or the second high-frequency resonant arm are implemented by bending.
In a preferred embodiment, the first antenna arm and the second antenna arm are both IFA linearly polarized antennas.
In a preferred embodiment, the bridge feeds the first antenna arm and the second antenna arm with equal-amplitude orthogonal phase through the first feed point and the second feed point.
In a preferred embodiment, the first low frequency resonator arm at least partially surrounds the first high frequency resonator arm, and the second low frequency resonator arm at least partially surrounds the second high frequency resonator arm.
In a preferred example, the electronic device is a mobile phone, or a tablet computer, or a wearable device.
In a preferred embodiment, the lengths of the first antenna arm and the second antenna arm are 25-35 mm, the distance between the first feed point and the grounding point is 5-10 mm, and the distance between the second feed point and the grounding point is 5-10 mm.
In a preferred embodiment, the end of the first high-frequency resonator arm and the first low-frequency resonator arm connected to each other is located on a side close to the first feed point, and the end of the second high-frequency resonator arm and the second low-frequency resonator arm connected to each other is located on a side close to the second feed point.
The application further discloses an electronic device comprising an antenna arrangement, the antenna arrangement comprising a first antenna arm and a second antenna arm, the electronic device comprising a bridge, wherein,
the first antenna arm and the second antenna arm are respectively arranged along two adjacent orthogonal edges of the electronic equipment, a first feed point and a second feed point are respectively arranged on the first antenna arm and the second antenna arm, and the first feed point and the second feed point are electrically connected with the electric bridge;
the first antenna arm comprises a first high-frequency resonance arm and a first low-frequency resonance arm, the length of the first high-frequency resonance arm is smaller than that of the first low-frequency resonance arm, one end of the first high-frequency resonance arm is connected with one end of the first low-frequency resonance arm, the second antenna arm comprises a second high-frequency resonance arm and a second low-frequency resonance arm, the length of the second high-frequency resonance arm is smaller than that of the second low-frequency resonance arm, and one end of the second high-frequency resonance arm is connected with one end of the second low-frequency resonance arm.
In a preferred embodiment, the bridge feeds the first feed point and the second feed point with equal amplitude and orthogonal phase.
Compared with the prior art, the electronic equipment comprising the antenna device in the embodiment of the invention has at least one of the following differences and effects:
first, based on the appearance requirement of an electronic device, such as a smart phone, two antenna radiation arms are manufactured on an orthogonal right-angle frame of the smart phone, which can be a metal frame or a metallized plastic frame, and the two radiation arms are connected into a whole, so that the requirement of antenna clearance can be met without extra space.
The second antenna arm, the first antenna arm and the second antenna arm respectively comprise a pair of high-frequency resonance arm and low-frequency resonance arm with different lengths, the high-frequency resonance arm excites a high-frequency band resonance mode, and the low-frequency resonance arm excites a low-frequency band resonance mode, so that the first antenna arm and the second antenna arm realize double-frequency resonance.
And thirdly, a grounding point is arranged at a right-angle position where the two radiation arms are connected, the grounding point is connected with the ground of the main board to realize the grounding of the radiation structure, the grounding point serves as the grounding point of the two antenna arms, and the antenna arms are introduced into the grounding point, so that the size of the antenna is shortened, and the length of the antenna is reduced from equivalent 1/2 resonance wavelength to equivalent 1/4 resonance wavelength.
Fourthly, two feed points are respectively arranged on the two radiation arms, the two feed points realize two-path feeding through an electric bridge or a power distribution network with the same function, and two-path feeding signals can meet the requirements of equal amplitude and 90-degree phase difference, so that the whole antenna structure realizes the circular polarization function. Because the positions of the two feed points can be set to be close to the grounding point, signal combination can be conveniently realized, and the antenna is compact without occupying too much space of the circuit board.
Therefore, the electronic equipment comprising the antenna device provided by the embodiment of the specification can realize dual-frequency circular polarization and reduce occupied space, so that the communication equipment not only has better positioning accuracy, but also does not increase the volume additionally. Furthermore, the performance of the dual-frequency GNSS antenna of the communication equipment is improved, so that the popularization of the RTK service in mass consumer mobile phone handheld terminal products is supported.
It is to be understood that within the scope of the present invention, the above-described features of the present invention and those specifically described below (e.g., in the examples) may be combined with each other to form new or preferred embodiments. Not to be reiterated herein, but to the extent of space.
Drawings
Fig. 1 shows a schematic view of an antenna structure in an electronic device comprising an antenna arrangement according to an embodiment of the invention;
fig. 2 shows an antenna gain pattern of an antenna structure in an electronic device incorporating an antenna arrangement using an embodiment of the invention;
fig. 3 shows a schematic view of an antenna arm in an antenna structure of an electronic device comprising an antenna arrangement according to an embodiment of the invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
100: antenna structure
101: mainboard of electronic equipment
102: housing of electronic equipment
103: first feed point
104: second feed point
105: grounding point (i.e. connection point)
106: first antenna arm
106 a: first low frequency resonance arm
106 b: first high frequency resonance arm
107: second antenna arm
107 a: second low frequency resonance arm
107 b: second high-frequency vibrating arm
108: electric bridge
Detailed Description
In the following description, numerous technical details are set forth in order to provide a better understanding of the present application. However, it will be understood by those skilled in the art that the technical solutions claimed in the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Term(s) for
The IFA refers to an inverted F antenna, which comprises a ground, a radiation arm, a grounding point and a feed point, and is in an inverted F shape.
Polarization refers to a trajectory of an electric field vector at a position in space whose orientation in space varies with time as viewed along the propagation direction of an electromagnetic wave. When the track is a straight line, the linear polarization is formed; when the track is a circle, it is called circular polarization, and when the track is an ellipse, it is called elliptical polarization. The direction of linear polarization is referred to as vertical polarization when it is perpendicular to the ground and horizontal polarization when it is parallel to the ground.
A full-screen mobile phone is a wider definition of ultra-high screen than mobile phone design in the mobile phone industry. The explanation is that the front of the mobile phone is a screen, and the four frame positions of the mobile phone are designed without frames, so that the screen occupation ratio is close to 100%.
RTK is Real-time kinematic, namely, Real-time dynamic, is a carrier phase differential technology, is a differential method for processing carrier phase observed quantities of two measuring stations in Real time, and sends carrier phases acquired by a reference station to a user receiver for difference solving of coordinates.
First embodiment
The first embodiment is an electronic device including an antenna device, wherein the electronic device may be a full-screen mobile phone, or a tablet computer, or a wearable device, and the like.
Hereinafter, for the sake of clarity of the description, the structure of the antenna device as a whole is explained, referred to as antenna structure.
As shown in fig. 1, the antenna arrangement comprises a first antenna arm 106 and a second antenna arm 107, and the electronic device comprises a main board and a bridge 108, wherein,
the first antenna arm 106 and the second antenna arm 107 are respectively arranged along two adjacent orthogonal sides of the frame of the housing 102 of the electronic device, and are connected with each other at a right angle of the frame of the housing 102 of the electronic device to form a connection point, wherein the connection point is electrically connected to the ground of the main board 101 of the electronic device to serve as a common grounding point 105 of the first antenna arm 106 and the second antenna arm 107, the first antenna arm 106 and the second antenna arm 107 are respectively provided with a first feeding point 103 and a second feeding point 104, and the first feeding point 103 and the second feeding point 104 are electrically connected with the bridge 108.
Further, the bridge 108 is disposed on the main board 101 of the electronic device, and the first antenna arm 106 and the second antenna arm 107 are fed through the first feed point 103 and the second feed point 104; as shown in fig. 3, the first antenna arm 106 includes a first high-frequency resonance arm 106b and a first low-frequency resonance arm 106a, the length of the first high-frequency resonance arm 106b is smaller than the length of the first low-frequency resonance arm 106a, one end of the first high-frequency resonance arm 106b and one end of the first low-frequency resonance arm 106a are connected to each other, the second antenna arm 107 includes a second high-frequency resonance arm 107b and a second low-frequency resonance arm 107a, the length of the second high-frequency resonance arm 107b is smaller than the length of the second low-frequency resonance arm 107a, and one end of the second high-frequency resonance arm 107b and one end of the second low-frequency resonance arm 107a are connected to each other. This length is, for example, a length equivalent to realizing a high frequency or a low frequency.
Preferably, as shown in fig. 3, the first low-frequency resonance arm 106a, and/or the first high-frequency resonance arm 106b, and/or the second low-frequency resonance arm 107a, and/or the second high-frequency resonance arm 107b are implemented by bending, thereby effectively reducing the overall size of the antenna structure 100. Note that, in the embodiments of the present specification, the length and the bent shape of both the low-frequency resonance arm and the high-frequency resonance arm may be adjusted as necessary, and in the case where the length is short, the bending may not be necessary.
Preferably, the first antenna arm 106 and the second antenna arm 107 are both IFA linearly polarized antennas.
Preferably, the bridge 108 feeds the first antenna arm 106 and the second antenna arm 107 in a constant-amplitude orthogonal phase through the first feed point 103 and the second feed point 104, so as to implement circular polarization.
Preferably, the bridge 108 is a 3dB bridge, or a power division network, and implements two-way feeding, where signals of the two-way feeding are equal in amplitude and have a phase difference of 90 degrees.
Preferably, the dual-frequency operation of the dual-frequency IFA linearly polarized antenna is achieved by matching reactive devices at the first feed point 103 and the second feed point 104.
Preferably, as shown in fig. 3, the first low frequency resonator arm 106a at least partially surrounds the first high frequency resonator arm 106b, and the second low frequency resonator arm 107a at least partially surrounds the second high frequency resonator arm 107 b.
For example, referring to fig. 3, a first low frequency resonator arm 106a completely surrounds the first high frequency resonator arm 106b, and a second low frequency resonator arm 107a partially surrounds the second high frequency resonator arm 107 b.
Preferably, the lengths of the first antenna arm 106 and the second antenna arm 107 are 25 to 35mm, the distance between the first feed point 103 and the grounding point 105 is 5 to 10mm, and the distance between the second feed point 104 and the grounding point 105 is 5 to 10 mm.
Preferably, as shown in fig. 3, the end of the first high-frequency resonance arm 106b and the first low-frequency resonance arm 106a connected to each other is located on the side close to the first feed point 103, and the end of the second high-frequency resonance arm 107b and the second low-frequency resonance arm 107a connected to each other is located on the side close to the second feed point 104.
Note that the high-frequency resonating arm excites a linear polarization mode in a high-frequency band (GPS L1), and the low-frequency resonating arm excites a resonance mode in a low-frequency band (GPS L5), so that each antenna realizes dual-frequency (GPS L1/L5) resonance. Wherein the length of the resonating arm may refer to an equivalent quarter resonance wavelength from the feed point of the antenna arm to the end of the resonating arm.
Preferably, the first antenna arm 106 and the second antenna arm 107 may be respectively disposed along two adjacent orthogonal sides of the inner side of the frame of the electronic device housing 102, or may also be respectively disposed along two adjacent orthogonal sides of the outer side of the frame of the electronic device housing 102.
Note that, in the case where the first antenna arm 106 and the second antenna arm 107 are respectively disposed along two adjacent orthogonal sides of the frame of the electronic device housing 102 and are connected to each other at a right angle of the frame of the electronic device housing 102, the first antenna arm 106 and the second antenna arm 107 form a spatial orthogonality.
Specifically, the connection point of the first antenna arm 106 and the second antenna arm 107 may be any one of four right-angle positions of the frame of the electronic device housing 102.
Preferably, the first antenna arm 106 and the second antenna arm 107 are formed by: the metallic radiating arm of the antenna is formed on the dielectric material of the frame of the electronic device housing 102 by Laser Direct Structuring (LDS). Specifically, the length of the metal radiating arm, that is, the first antenna arm 106 and the second antenna arm 107 is 33mm, the dielectric constant of the dielectric material of the frame of the electronic device housing 102 is 3.2, and the dielectric thickness is 2 mm.
Preferably, the first feed point 103 and the second feed point 104 are disposed close to the grounding point 105 of the first antenna arm 106 and the second antenna arm 107, for example, the first feed point 103 and the second feed point 104 are both 7mm away from the grounding point 105, which is advantageous in that signal combining can be conveniently achieved and the first antenna arm 106 and the second antenna arm 107 can be made compact without occupying too much circuit board space. Further, simulation results show that the first antenna arm 106 and the second antenna arm 107 implement right-hand circular polarization (RHCP) (solid lines in fig. 2) on the front surface of the electronic device, which is beneficial to improving the antenna polarization efficiency of signals received by the front surface of the electronic device during positioning; and the back surface of the electronic equipment is left-handed circular polarization (LHCP), which is beneficial to inhibiting the interference of the back multipath signals of the electronic equipment and is suitable for the positioning application of the electronic equipment. Note that the left diagram in fig. 2 is the antenna gain pattern at frequency 1175, and the right diagram is the antenna gain pattern at frequency 1575.
Preferably, the bridge 108 is arranged close to the first feed point 103 and the second feed point 104, for example, two output ends of the bridge 108 are 3mm away from the first feed point 103 and the second feed point 104, respectively, and are connected with the two feed points 103 and 104 through microstrip traces on the main board. This has the advantage of reducing the loss of traces and minimizing the board space required, resulting in a completely compact antenna structure 100 that occupies little space.
The following describes the main operation principle of the antenna structure 100 in the electronic device of the above embodiment, and is performed in conjunction with the antenna of the related art.
The two orthogonal first and second antenna arms 106, 107 of the antenna structure 100 are both IFA linearly polarized antennas and dual frequency linear polarization is achieved by adjustment of the structural parameters. Specifically, the first antenna arm 106 includes a first high-frequency resonance arm 106b and a first low-frequency resonance arm 106a, the second antenna arm 107 includes a second high-frequency resonance arm 107b and a second low-frequency resonance arm 107a, the high-frequency resonance arm excites a linear polarization mode of a high frequency band (GPS L1), the low-frequency resonance arm excites a resonance mode of a low frequency band, so that each antenna realizes dual-frequency resonance, and the resonance arms can be realized in a bending manner, thereby effectively reducing the overall size of the antenna structure.
Furthermore, two orthogonal sides adjacent to the frame of the housing 102 of the electronic device form two first antenna arms 106 and two second antenna arms 107 which are connected with each other and are orthogonal in position, each of the first antenna arms 106 and the second antenna arms 107 includes a first feed point 103, a second feed point 104 and a ground point 105, the ground point 105 is located at a right angle position of the frame of the housing 102 of the electronic device, the first feed point 103 and the second feed point 104 are close to the ground point 105, and the first feed point 103 and the second feed point 104 of the first antenna arm 106 and the second antenna arms 107 are fed with equal amplitude and orthogonal phases through a bridge 108 on the main board 101 of the electronic device, so that double-fed dual-frequency circular polarization is better realized.
Further, for an electronic device employing such an antenna structure 100, the positioning accuracy and applicability of the RTK technology on the electronic device are further improved.
Further, when the electronic device is a mobile phone, because the current GNSS antenna of the mobile phone generally adopts the form of an IFA (inverted F antenna) and a monopole antenna, although a method of introducing multiple resonant frequencies in the structure can implement dual-band, the polarization mode can only implement linear polarization, but cannot implement circular polarization. In the embodiment of the present specification, the feature of orthogonality of the spatial position of the right-angle frame of the mobile phone shell is utilized to serve as two orthogonal radiating arms; meanwhile, a mobile phone mainboard is used as a reference ground; meanwhile, each radiation arm is a dual-frequency linear polarization IFA antenna, and comprises a first feed point 103, a second feed point 104 and a grounding point 105, and the first feed point 103, the second feed point 104 and the grounding point 105 are all positioned in the right-angle position area of the frame of the mobile phone shell and are close to each other, so that broadband feeding can be performed on the two first feed points 103 and the two second feed points 104 through an electric bridge 108 on the mobile phone mainboard, and dual-band circular polarization is realized; furthermore, since the first feed point 103 and the second feed point 104 are very close to the bridge 108, the loss of the routing is reduced and the occupation of the space of the mobile phone motherboard is reduced to the maximum extent, so that the whole antenna structure 100 is completely and compactly adapted to the mobile phone structure and occupies little space. Further, dual-frequency operation of the antenna may be achieved at the feed point by matching of reactive devices, such as capacitive inductors, which may be combined with the original antenna arm to form a dual-frequency resonance, such as GPS L1/L5.
Table 1 below is an antenna model tuning results table showing frequency, efficiency, and gain.
Table 1:
the standing waves of antenna ports are smaller than 1.5 in 1176MHz and 1575MHz of a GPS L1/L5 frequency band, the antenna efficiency reaches more than 40%, and the right-hand circularly polarized gain reaches 0.11dBi and 1.1dBi respectively, so that the performance of the electronic equipment adopting the antenna structure is superior to that of a GNSS antenna on a current mainstream smart phone.
Second embodiment:
a second embodiment is an electronic device including an antenna apparatus, wherein the antenna apparatus includes a first antenna arm and a second antenna arm, and the electronic device includes a bridge, wherein the first antenna arm and the second antenna arm are respectively disposed along two adjacent orthogonal edges of the electronic device, the first antenna arm and the second antenna arm are respectively provided with a first feed point and a second feed point, and the first feed point and the second feed point are electrically connected to the bridge.
Further, the first antenna arm includes a first high-frequency resonance arm and a first low-frequency resonance arm, the length of the first high-frequency resonance arm is smaller than the length of the first low-frequency resonance arm, one end of the first high-frequency resonance arm and one end of the first low-frequency resonance arm are connected with each other, the second antenna arm includes a second high-frequency resonance arm and a second low-frequency resonance arm, the length of the second high-frequency resonance arm is smaller than the length of the second low-frequency resonance arm, and one end of the second high-frequency resonance arm and one end of the second low-frequency resonance arm are connected with each other.
Preferably, the bridge feeds the first and second feed points in equal-amplitude quadrature phase.
Preferably, the bridge may be disposed on a main board of the electronic device, and the first antenna arm and the second antenna arm are fed through the first feeding point and the second feeding point, but the position of the bridge is not limited thereto, and in other embodiments, the bridge may be disposed as needed, for example, may be disposed in a groove of a mobile phone, or a neutral position in the mobile phone.
It should be noted that the second embodiment may have the same operation principle of dual-feed dual-band circular polarization as the first embodiment, and in the second embodiment, any technical feature or any combination thereof in the first embodiment may be combined, including but not limited to the structures of the first antenna arm and the second antenna arm, the structures of the first low-frequency resonance arm and the first high-frequency resonance arm, the structures of the second low-frequency resonance arm and the second high-frequency resonance arm, and the sizes of the components, etc., which are not described herein again.
The electronic equipment of the embodiment can realize double-frequency circular polarization, and simultaneously can reduce the whole size of the electronic equipment, so that the electronic equipment not only can have better positioning precision, but also does not additionally increase the volume. Furthermore, the antenna performance of the electronic equipment is improved, and therefore the popularization of the RTK service in mass consumer mobile phone handheld terminal products is supported.
It is noted that all references mentioned in this application are incorporated by reference in this application as if each reference were individually incorporated by reference. Furthermore, it should be understood that various changes and modifications of the present invention can be made by those skilled in the art after reading the above teachings of the present invention, and these equivalents also fall within the scope of the present invention as defined by the appended claims.
Also, in the claims and the description of the present patent, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element. In the claims and the specification of this patent, if it is mentioned that a certain action is performed according to a certain element, it means that the action is performed at least according to the element, and two cases are included: performing the action based only on the element, and performing the action based on the element and other elements.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. An electronic device comprising an antenna arrangement, characterized in that the antenna arrangement comprises a first antenna arm and a second antenna arm, the electronic device comprising a main board and a bridge, wherein,
the first antenna arm and the second antenna arm are respectively arranged along two adjacent orthogonal sides of a housing frame of the electronic device and are mutually connected at a right angle of the housing frame to form a connection point, wherein the connection point is electrically connected to the ground of a main board of the electronic device to be used as a common grounding point of the first antenna arm and the second antenna arm, a first feed point and a second feed point are respectively arranged on the first antenna arm and the second antenna arm, and the first feed point and the second feed point are electrically connected with the bridge; and the number of the first and second electrodes,
the bridge is arranged on a main board of the electronic equipment, and feeds the first antenna arm and the second antenna arm through the first feed point and the second feed point; wherein
The first antenna arm comprises a first high-frequency resonance arm and a first low-frequency resonance arm, the length of the first high-frequency resonance arm is smaller than that of the first low-frequency resonance arm, one end of the first high-frequency resonance arm is connected with one end of the first low-frequency resonance arm, the second antenna arm comprises a second high-frequency resonance arm and a second low-frequency resonance arm, the length of the second high-frequency resonance arm is smaller than that of the second low-frequency resonance arm, and one end of the second high-frequency resonance arm is connected with one end of the second low-frequency resonance arm.
2. An electronic device as claimed in claim 1, characterized in that the first low-frequency resonator arm, and/or the first high-frequency resonator arm, and/or the second low-frequency resonator arm, and/or the second high-frequency resonator arm are realized by means of a meander.
3. The electronic device of claim 1, wherein the first antenna arm and the second antenna arm are both IFA linearly polarized antennas.
4. The electronic device of claim 1, wherein the bridge feeds the first and second antenna arms in equal-amplitude quadrature-phase through the first and second feed points.
5. An electronic device as recited in claim 1, wherein the first low frequency resonant arm at least partially surrounds the first high frequency resonant arm and the second low frequency resonant arm at least partially surrounds the second high frequency resonant arm.
6. The electronic device of claim 1, wherein the electronic device is a cell phone, or a tablet, or a wearable device.
7. The electronic device of claim 1, wherein the first antenna arm and the second antenna arm have a length of 25-35 mm, the first feed is 5-10 mm from the ground point, and the second feed is 5-10 mm from the ground point.
8. An electronic device as claimed in claim 1, characterized in that the end of the first high frequency resonator arm and the first low frequency resonator arm that are connected to each other is located on a side close to the first feed point, and the end of the second high frequency resonator arm and the second low frequency resonator arm that are connected to each other is located on a side close to the second feed point.
9. An electronic device comprising an antenna arrangement, characterized in that the antenna arrangement comprises a first antenna arm and a second antenna arm, the electronic device comprising a bridge, wherein,
the first antenna arm and the second antenna arm are respectively arranged along two adjacent orthogonal edges of the electronic equipment, a first feed point and a second feed point are respectively arranged on the first antenna arm and the second antenna arm, and the first feed point and the second feed point are electrically connected with the electric bridge;
the first antenna arm comprises a first high-frequency resonance arm and a first low-frequency resonance arm, the length of the first high-frequency resonance arm is smaller than that of the first low-frequency resonance arm, one end of the first high-frequency resonance arm is connected with one end of the first low-frequency resonance arm, the second antenna arm comprises a second high-frequency resonance arm and a second low-frequency resonance arm, the length of the second high-frequency resonance arm is smaller than that of the second low-frequency resonance arm, and one end of the second high-frequency resonance arm is connected with one end of the second low-frequency resonance arm.
10. The electronic device of claim 9, wherein the bridge feeds the first feed point and the second feed point in equal-amplitude quadrature-phase.
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| CN202010484367.0A CN113764864A (en) | 2020-06-01 | 2020-06-01 | Electronic device comprising an antenna arrangement |
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| CN202010484367.0A CN113764864A (en) | 2020-06-01 | 2020-06-01 | Electronic device comprising an antenna arrangement |
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Application publication date: 20211207 |