CN107492712B - A kind of low section double-circle polarization microstrip antenna array for the asymmetric large-angle scanning of two dimension - Google Patents
A kind of low section double-circle polarization microstrip antenna array for the asymmetric large-angle scanning of two dimension Download PDFInfo
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- CN107492712B CN107492712B CN201710502186.4A CN201710502186A CN107492712B CN 107492712 B CN107492712 B CN 107492712B CN 201710502186 A CN201710502186 A CN 201710502186A CN 107492712 B CN107492712 B CN 107492712B
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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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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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
- 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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
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Abstract
The present invention relates to the low section double-circle polarization microstrip antenna arrays for the asymmetric large-angle scanning of two dimension.Including being made of more than four double-circle polarization microstrip antenna submatrixs by two-dimensional and periodic continuation；Each double-circle polarization microstrip antenna submatrix is made of four low section double-circle polarization microstrip antennas, and the sectional thickness of each low section double-circle polarization microstrip antenna is 0.08 times of center frequency wavelength；Upper layer micro-strip plate is equipped with metal layer and metal edge frame；Lower layer's micro-strip plate is equipped with radial cross distribution two to non-isometric metal arm；It further include metallic film and two connectors.For each small battle array of microstrip antenna using half feeding point at small battle array center, half feeding point balances the coupling of different direction and the scan performance of different angle in the location mode of small array edge.The present invention has compromised requirement of the two-dimentional different scanning range to antenna, it can be achieved that one-dimensional ± 60 °, and one-dimensional ± 30 ° of scanning balances the active stationary wave characteristic of different scanning angle within the scope of large-angle scanning.
Description
Technical field
The invention belongs to for receiving, can also be used for transmitting radio wave, or realization while the antenna technology for receiving and dispatching work
Field is related to a kind of double-circle polarization microstrip antenna array, and in particular to a kind of low section for the asymmetric large-angle scanning of two dimension is double
Circular polarization microstrip antenna array.
Background technique
For satellite communication and remote sensing system, for effectively transmission information, ionosphere Faraday rotation effect is overcome to cause
Polarization distortion, it is desirable that antenna has a performance of circular polarisation, and same antenna front under reception pattern and emission mode simultaneously
Work, this requires antennas to have the ability to work of double-circle polarization.Military aspect, extraterrestrial target early warning field, various countries are also universal
Using dual circularly polarized antenna as basic radiating element group battle array.At civilian aspect, radio data system uses dual circularly polarized antenna
Also spillover can be effectively reduced, overcome ghost image.This has also also pushed the development of dual circularly polarized antenna technology to a certain extent.Cause
This dual circularly polarized antenna technology is general in will be used wider and wider for dual-use field.
In airborne and spaceborne application, the requirement to antenna section is especially emphasized, in case change of flight device is pneumatic
Characteristic influences transport transmitting or brings other unnecessary mechanical interferences.
Microstrip antenna have the characteristics that low cost, low section, be easily integrated with it is conformal, be suitable for design low section circular polarisation day
Line.There are three types of the implementations of common circular polarization microstrip antenna:
One, cell level is realized, i.e., by the performance of suitable feeding classification realization double-circle polarization, then by corresponding antenna list
First periodic arrangement group battle array (Zhang Jilong, Lu Chunlan, a kind of research [ J ] microwave of novel circularly-polarized patch antenna of money ancestral's equality
Journal, 35 (3), 2009:31-33.).Its advantage is that group battle array mode is more free, it is not required to follow stringent spatial position requirement.
The standing wave of each unit, isolation performance are consistent, standing wave broader bandwidth.The disadvantage is that feeding network is more complex.
Two, array class is realized, i.e., by the identical microband antenna unit of rotation, realizes the phase difference between adjacent cells,
To realize that (Cao Yuan, a kind of BGAN system microstrip antenna design and produce the Dalian maritime affairs to the radiance of circular polarisation of antenna
University, Master's thesis, 2008.3).This method feeding network is simple, and axial ratio bandwidth can reach most wide, and can obtain the smallest axis
Than antenna gain is high.The disadvantage is that structure is complicated, it is at high cost.
Three, mixed mode combines both the above implementation, to realize more preferably electrical property.
In order to realize the broadband performance of microstrip antenna, common technology has back chamber technology (Zhan Zhenxian, Wang Zhouhai X wave band
Two-dimentional wide bandwidth sweep back chamber microstrip antenna [ J ] radar and confrontation, 34 (2), 2014:44-47.), couple feed technology (Feng Jun
A kind of H shape slot coupled microstrip antenna model and analysis [ J ] audiovisual circle (broadcast television technique), 1,2007:28-31.) and multilayer
(a kind of design [ J ] Guangxi Academy Of Sciences journal of minimized wide-band paster antenna of Ma Hanqing, Jiang Xing, 21 (increase mount technology
Periodical), 2005:94-96.).Three kinds of technologies have all broadened the bandwidth of microstrip antenna to a certain extent.It, can be with if be applied in combination
Obtain broader bandwidth.
Existing technical data indicates the method for the implementation and broadening broadband microstrip antenna of circular polarisation, but related
The bandwidth that work considers refers to standing wave bandwidth.In active array, there are mutual coupling between antenna element, measure day with active standing wave
It linearly can more accurate (broadband microstrip antenna [ J ] bullet arrow and guidance of Ma Chune, Chen Zhihui, the Tian Lei suitable for phased array application
Journal, 1,2015:28-31.).It more accurately reflects the efficiency of electromagnetic energy radiation.Because the mutual coupling of antenna is with scan angle
The variation of degree causes active standing wave to change therewith, so the adjusting of active standing wave is more more difficult than standing wave in scanning range.In addition,
Wide-angle scanning rear axle ratio can also deteriorate, this is also required to be compensated by by appropriate Antenna Design.Particularly, in two-dimensional scanning
When area requirement asymmetry, it is also necessary to do compromise processing to two-dimensional scanning performance.
In existing group of battle array technology, the feed placement of unit surrounds the edge of antenna submatrix.Coupling inside antenna submatrix
It is smaller.And the coupling at antenna submatrix edge is larger.The active standing wave that the inhomogeneities of coupling will lead to the scanning of antenna wide-angle is disliked
Change.Existing monotechnics, using the feeding classification of isometric both arms or four arms, does not account for two dimension and sweeps in the part of couple feed
Retouch requirement difference of the range difference to antenna.
Summary of the invention
In order to solve the problems, such as the large-angle scanning of double-circle polarization microstrip antenna, there is double-circle polarization microstrip antenna array asymmetric
The characteristics of wideband wide scan, low active standing wave, high isolation, low axis ratio, low section, the present invention provide a kind of non-right for two dimension
Claim the low section double-circle polarization microstrip antenna array of large-angle scanning.
Low section double-circle polarization microstrip antenna array for the asymmetric large-angle scanning of two dimension includes by more than four double circles
Polarization micro-strip antenna submatrix is formed by two-dimensional and periodic continuation；Each double-circle polarization microstrip antenna submatrix is by the double circles of four low sections
Polarization micro-strip antenna composition is in matrix pattern；Each low section double-circle polarization microstrip antenna includes the metal back chamber 7 of rectangle, metal
Upper layer micro-strip plate 1, upper foam plate 2, lower layer's micro-strip plate 3, middle layer cystosepiment 4, metal foil are from top to bottom successively arranged in back chamber 7
Film 5 and lower layer's cystosepiment 6, and radio frequency interface is connected to by two connectors 8；Improvement is:
The sectional thickness of each low section double-circle polarization microstrip antenna is 0.08 times of center frequency wavelength；
The lateral surface of the upper layer micro-strip plate 1 is equipped with the metal layer of rectangle, and the metal layer outer cover of rectangle is equipped with metal
Frame；
The upper surface of lower layer's micro-strip plate 3 be equipped with two pairs of metal arms, two pairs of radial cross distributions of metal arm, two pairs
The outer end of metal arm is located at the edge on four sides of lower layer's micro-strip plate 3, and the inner end of two pairs of metal arms is in not contact condition；
The metallic film 5 is set to the lower surface center of middle layer cystosepiment 4, and two pairs of metal arms with lower layer micro-strip plate 3
Inner end is corresponding, the center of the center of metallic film 5 and upper layer micro-strip plate 1, lower layer's micro-strip plate 3 center point-blank；
The inner conductor of described two connectors 8 respectively connected the one arm in two pairs of metal arms, two connectors 8 it is outer
Conductor respectively connected metal back chamber 7；And two connectors 8 in each low section double-circle polarization microstrip antenna are located at phase
The edge of adjacent two sides；
It in each double-circle polarization microstrip antenna submatrix, rotates in the direction of the clock, each low section double-circle polarization micro-strip day
A connector 8 in line is located at submatrix edge, another connector 8 is located at adjacent low section double-circle polarization micro-strip in submatrix
The edge of antenna.
The technical solution further limited is as follows:
The material of the upper layer micro-strip plate 1 and the material of lower layer's micro-strip plate 3 are microwave composite medium substrate, with a thickness of
0.127mm。
The metal patch 11 that metal layer on 1 lateral surface of upper layer micro-strip plate is square, the side length of the square
For 0.35 times of center frequency wavelength；The width of metal edge frame is 0.005 times of center frequency wavelength, the inner side edge and gold of metal edge frame
The spacing belonged between the periphery of patch 11 is 0.005 times of center frequency wavelength.
Two pairs of metal arms are the long metal arm of a pair and a pair of short metal arm that length does not wait, the outer end of two pairs of metal arms
Spacing between edge away from lower layer's micro-strip plate 3 is equal；The outer end of two pairs of metal arms is arc-shaped；The length of the long metal arm
Degree is 0.14 times of center frequency wavelength, and the length of short metal arm is less than the length of long metal arm；The width of the metal arm is
0.02 times of center frequency wavelength.
The thickness ratio of the upper foam plate 2, middle layer cystosepiment 4 and lower layer's cystosepiment 6 is 1:1:2.
The metallic film 5 is square, and side length is 0.14 times of center frequency wavelength.
Advantageous effects of the invention embody in the following areas:
1, the present invention uses asymmetrical four arm configuration in lower layer's micro-strip plate, and two-dimentional different scanning range of having compromised is to antenna
Requirement.It can be achieved one-dimensional ± 60 °, one-dimensional ± 30 ° of scanning.Non-isometric metal arm constructs and upper layer microband paste and lower layer
Different distribution capacity between metallic film, it is variant to the inductive compensation of probe feed, so as to form the difference of two ports
Phase response characteristic, can realize asymmetrical compensation for the asymmetry of two-dimensional scanning, balance large-angle scanning range
The active stationary wave characteristic of interior different scanning angle.
2, the present invention is equipped with metallic film between lower layer's micro-strip plate and the intracavitary bottom surface of back, reinforces feed coupling, effectively drops
Low antenna section thickness is to 0.08 centre frequency free space wavelength.
3, rotation group battle array mode makes the polarization performance of antenna element and the circular polarisation performance of group battle array mode realize superposition,
Reduce axis ratio.± 30 ° of scan axis ratios are less than 1.5dB, and ± 60 ° of scan axis ratios are less than 4.5dB.
4, uniform rotation group battle array mode reduces the mutual coupling at different antennae unit feed position, improves active standing wave
And isolation performance, expand bandwidth of operation.In relative bandwidth 15%, Non-scanning mode state, the active standing wave in port is better than 2.0, port isolation
Better than -10dB.State is scanned, the active standing wave in port is better than 3.0, and port isolation is better than -6dB.
5, frame is added in upper layer microband paste, reduces the mutual coupling between antenna element.
Detailed description of the invention
Fig. 1 is schematic diagram of the three-dimensional structure.
Fig. 2 is the exploded view of an antenna element.
Fig. 3 is the structural schematic diagram of upper layer micro-strip plate.
Fig. 4 is the structural schematic diagram of lower layer's micro-strip plate.
Fig. 5 is the structural schematic diagram of middle layer cystosepiment.
Fig. 6 is the structural schematic diagram of lower layer's cystosepiment.
Fig. 7 is the schematic diagram of four antenna element group battle arrays.
Fig. 8 be embodiment 1 antenna array in the battle array of external electric bridge active standing wave performance map under environment.
Fig. 9 be embodiment 1 antenna array in the battle array of external electric bridge isolation performance figure under environment.
Figure 10 is the intermediate frequency exemplary lobe of the antenna array of embodiment 1.
Serial number in upper figure: upper layer micro-strip plate 1, upper foam plate 2, lower layer's micro-strip plate 3, middle layer cystosepiment 4, metallic film 5,
Lower layer's cystosepiment 6, metal cavity 7, connector 8, metal patch 11, metal edge frame 12.First metal arm 31, the second metal arm
32, third metal arm 33, the 4th metal arm 34, the first connecting hole 35, the second connecting hole 36, the first connector inner conductor 41,
Two connector inner conductors 42.
Specific embodiment
With reference to the accompanying drawing, the present invention is further described by embodiment.
Embodiment
In the present embodiment orientation need scan ± 60 °, pitching to need scan ± 30 °.The choosing of orientation cell spacing
For 0.48 λ0, scan to cell spacing and be selected as 0.49 λ0；Wherein λ0For center frequency wavelength, the i.e. light velocity and center of antenna frequency
Ratio.
Referring to Fig. 1, the low section double-circle polarization microstrip antenna array for the asymmetric large-angle scanning of two dimension is by 21 double entelechies
Change microstrip antenna submatrix to form by two-dimensional and periodic continuation.Referring to Fig. 7, each double-circle polarization microstrip antenna submatrix low is cutd open by four
Face double-circle polarization microstrip antenna forms matrix pattern.Referring to fig. 2, each low section double-circle polarization microstrip antenna includes the metal of rectangle
Chamber 7 is carried on the back, is from top to bottom successively arranged upper layer micro-strip plate 1, upper foam plate 2, lower layer's micro-strip plate 3, middle layer foam in metal back chamber 7
Plate 4, metallic film 5 and lower layer's cystosepiment 6, and radio frequency interface is connected to by two connectors 8.
The sectional thickness of each low section double-circle polarization microstrip antenna is 0.08 times of center frequency wavelength.
Referring to Fig. 3, the lateral surface of upper layer micro-strip plate 1 is equipped with the metal layer of rectangle, and metal layer is metal patch 11, rectangle
Metal layer outer cover be equipped with metal edge frame 12.The side length of the metal patch 11 of square is 0.35 times of center frequency wavelength；Gold
The width for belonging to frame 12 is 0.005 times of center frequency wavelength, between the inner side edge of metal edge frame 12 and the periphery of metal patch 11
Spacing be 0.005 times of center frequency wavelength.
Referring to fig. 4, the upper surface of lower layer's micro-strip plate 3 is equipped with a pair of long metal arm and a pair of short metal arm, a pair of long metal
Arm is the first metal arm 31 and third metal arm 33, and a pair of short metal arm is the second metal arm 32 and the 4th metal arm 34, two pairs
The outer end of metal arm is arc-shaped.Two pairs of radial cross distributions of metal arm, the outer end of two pairs of metal arms is located at
The edge on four sides of lower layer's micro-strip plate 3, and the spacing between 3 edge of lower layer micro-strip plate is equal；The inner end of two pairs of metal arms
In not contact condition.The length of long metal arm is 0.14 times of center frequency wavelength, and the length of short metal arm is about long metal arm
0.9 times；The width of the metal arm is 0.02 times of center frequency wavelength.
Metallic film 5 is set to the lower surface center of middle layer cystosepiment 4, and two pairs of metal arm inner ends with lower layer micro-strip plate 3
It is corresponding, the center of the center of metallic film 5 and upper layer micro-strip plate 1, lower layer's micro-strip plate 3 center point-blank.
Referring to fig. 4 and Fig. 5, the inner conductor of two connectors 8 respectively connected the one arm in two pairs of metal arms, i.e., first
Connector inner conductor 41 is connected to the first metal arm 31 by the first connecting hole 35, and the second connector inner conductor 42 connects by second
It connects hole 36 and is connected to the second metal arm 32.The outer conductor of two connectors 8 respectively connected metal back chamber 7；And each low section
Two connectors 8 in double-circle polarization microstrip antenna are located at the edge of adjacent two sides.
Referring to Fig. 7 (a) or Fig. 7 (b), in each double-circle polarization microstrip antenna submatrix, rotate in the direction of the clock, it is each low
A connector 8 in section double-circle polarization microstrip antenna is located at submatrix edge, another connector 8 is located at adjacent in submatrix
The edge of low section double-circle polarization microstrip antenna.
Fig. 8 gives the measured curve of embodiment antenna array active standing wave under environment in the battle array of external electric bridge, shows
The antenna is in the working band of relative bandwidth about 15%, and the active standing wave of normal direction is better than 1.4, and the scanning active standing wave of state is better than 2.2.
Fig. 9 gives the embodiment antenna array measured curve that environment lower port is isolated in the battle array of external electric bridge, shows
The antenna in the working band of relative bandwidth about 15%, normal direction port isolation be better than -10dB, scanning state port isolation better than -
6dB。
Figure 10 gives the simulation result of the embodiment intermediate frequency exemplary lobe.Antenna array method in entire working band
It is better than -25dB to cross polarization.The axis of 60 ° of 30 ° of emulation gained scanning and scanning is than being respectively 0.86dB and 3.40dB.
Inventive antenna proposes a kind of low section double-circle polarization microstrip antenna array of asymmetric large-angle scanning of two dimension, specifically
Including can produce dual circularly polarized antenna unit and a kind of special rotation group battle array mode.Specifically use double-circle polarization microstrip antenna
Technology, back chamber technology, unsymmetrical metal arm feeding technique, metallic film coupling technique and rotation group battle array technology.Although of the invention
It is described herein referring to a preferred embodiment scheme, but those skilled in the art will recognize that not departing from appended right
In the case of the spirit and scope of the present invention illustrated in claim, Circular microstrip patch can be such as used to its simple replacement, increased
The number of plies of metallic film, additional transmitted line changes the external interface position etc. of connector in metal back chamber, all should be considered as belonging to
In present invention invention protection scope determined by the appended claims.
Claims (6)
1. for the low section double-circle polarization microstrip antenna array of the asymmetric large-angle scanning of two dimension, including four or more are pressed two-dimension periodic
The double-circle polarization microstrip antenna submatrix of property continuation；Each double-circle polarization microstrip antenna submatrix is by four low section double-circle polarization micro-strips
Antenna composition is in matrix pattern；Each low section double-circle polarization microstrip antenna includes metal back chamber (7) of rectangle, and metal carries on the back chamber (7)
Inside from top to bottom it is successively arranged upper layer micro-strip plate (1), upper foam plate (2), lower layer's micro-strip plate (3), middle layer cystosepiment (4), gold
Belong to film (5) and lower layer's cystosepiment (6), and is used as radio frequency interface by two connectors (8)；It is characterized in that:
The sectional thickness of each low section double-circle polarization microstrip antenna is 0.08 times of center frequency wavelength；
The upper surface of the upper layer micro-strip plate (1) is equipped with the metal layer of rectangle, and the metal layer outer cover of rectangle is equipped with metal edges
Frame；
The upper surface of lower layer's micro-strip plate (3) is equipped with two pairs of metal arms, two pairs of radial cross distributions of metal arm, two pairs of gold
The outer end of category arm is located at the edge on four sides of lower layer's micro-strip plate (3), and the inner end of two pairs of metal arms is in not contact condition；
The metallic film (5) is set to the lower surface center of middle layer cystosepiment (4), and two pairs of metals with lower layer's micro-strip plate (3)
Arm inner end is corresponding, and the center of metallic film (5) and center, the center of lower layer's micro-strip plate (3) of upper layer micro-strip plate (1) are straight at one
On line；
The inner conductor of described two connectors (8) respectively connected the one arm in two pairs of metal arms, two connectors (8) it is outer
Conductor respectively connected metal back chamber (7)；
Two connectors (8) in each low section double-circle polarization microstrip antenna are located at the edge of adjacent two sides,
It in each double-circle polarization microstrip antenna submatrix, rotates in the direction of the clock, one in each low section double-circle polarization microstrip antenna
A connector (8) is located at the side edge at submatrix edge, another connector (8) is located at and double-circle polarization microstrip antenna
At the adjacent side edge of other low section double-circle polarization microstrip antennas in submatrix.
2. the low section double-circle polarization microstrip antenna array according to claim 1 for the asymmetric large-angle scanning of two dimension,
Be characterized in that: the material of the upper layer micro-strip plate (1) and the material of lower layer's micro-strip plate (3) are microwave composite medium substrate, thick
Degree is 0.127mm.
3. the low section double-circle polarization microstrip antenna array according to claim 1 for the asymmetric large-angle scanning of two dimension,
It is characterized in that: the metal patch (11) that the metal layer of the upper surface of the upper layer micro-strip plate (1) is square, the square
Side length is 0.35 times of center frequency wavelength；The width of metal edge frame is 0.005 times of center frequency wavelength, the inner side edge of metal edge frame
Spacing between the periphery of metal patch (11) is 0.005 times of center frequency wavelength.
4. the low section double-circle polarization microstrip antenna array according to claim 1 for the asymmetric large-angle scanning of two dimension,
Be characterized in that: two pairs of metal arms are the not equal long metal arm of a pair and a pair of short metal arm of length, two pairs of metal arms it is outer
Hold the spacing between the edge away from lower layer's micro-strip plate (3) equal；The outer end of two pairs of metal arms is arc-shaped；The long metal arm
Length be 0.14 times of center frequency wavelength, the length of short metal arm is less than the length of long metal arm；The width of the metal arm
For 0.02 times of center frequency wavelength.
5. the low section double-circle polarization microstrip antenna array according to claim 1 or 3 for the asymmetric large-angle scanning of two dimension,
It is characterized by: the thickness ratio of the upper foam plate (2), middle layer cystosepiment (4) and lower layer's cystosepiment (6) is 1:1:2.
6. the low section double-circle polarization microstrip antenna array according to claim 1 for the asymmetric large-angle scanning of two dimension,
Be characterized in that: the metallic film (5) is square, and side length is 0.14 times of center frequency wavelength.
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| CN108717996B (en) * | 2018-05-25 | 2019-07-23 | 湖南赛博诺格电子科技有限公司 | A kind of Broadband circularly polarized antenna for hand-held wall-through radar |
| CN109244650A (en) * | 2018-10-25 | 2019-01-18 | 苏州博海创业微系统有限公司 | Wide-beam circularly-polarizedmicrostrip microstrip antenna and array |
| CN110011028B (en) * | 2018-12-29 | 2020-09-18 | 瑞声科技(新加坡)有限公司 | Antenna system, communication terminal and base station |
| CN109888489A (en) * | 2019-04-16 | 2019-06-14 | 深圳市朗赛微波通信有限公司 | A kind of raising amplitude-phase consistency anti-interference antenna unit and anti-jamming array array antenna |
| CN111541035B (en) * | 2020-04-17 | 2020-12-08 | 河北晶禾电子技术股份有限公司 | GNSS intelligent antenna arrangement optimization method |
| CN111987442A (en) * | 2020-08-10 | 2020-11-24 | 超讯通信股份有限公司 | Radiation patch array and planar microstrip array antenna |
| CN117525899A (en) * | 2023-10-27 | 2024-02-06 | 深圳市飞宇信电子有限公司 | Dual-band 5G microstrip antenna |
| CN117240327B (en) * | 2023-11-13 | 2024-01-30 | 上海安其威微电子科技有限公司 | Non-contact connector |
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| Title |
|---|
| A compact dual-band circularly polarized squarering slot antenna with a wide angle circularly polarization performance;Xiaolin Xue，Guangjun Wen，Yuanhua Sun，Muhammad Abdul Basit;《Proceedings of 2014 3rd Asia-Pacific Conference on Antennas and Propagation》;20140729;530-532 * |
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| Publication number | Publication date |
|---|---|
| CN107492712A (en) | 2017-12-19 |
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