CN110190387A - A kind of single feedback double-circle polarization microstrip antenna - Google Patents
A kind of single feedback double-circle polarization microstrip antenna Download PDFInfo
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- CN110190387A CN110190387A CN201910380889.3A CN201910380889A CN110190387A CN 110190387 A CN110190387 A CN 110190387A CN 201910380889 A CN201910380889 A CN 201910380889A CN 110190387 A CN110190387 A CN 110190387A
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- 230000010287 polarization Effects 0.000 title claims abstract description 15
- 230000005855 radiation Effects 0.000 claims abstract description 55
- 239000000463 material Substances 0.000 claims abstract description 23
- 239000004020 conductor Substances 0.000 claims abstract description 17
- 239000000758 substrate Substances 0.000 claims description 38
- 239000002184 metal Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 238000009966 trimming Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
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- 238000002955 isolation Methods 0.000 description 2
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- 229910052709 silver Inorganic materials 0.000 description 2
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- 238000004891 communication Methods 0.000 description 1
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Classifications
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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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
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Abstract
The invention discloses a kind of single feedback double-circle polarization microstrip antennas, the radiation patch of the rectangular shape at two right angles on a pair of of linea angulata can be cut by being arranged on antenna stack, then the conductor material layer including at least two H-shaped feed gaps is respectively set on two apparent surfaces of feed dielectric layer, and setting includes at least two T shape feed structures being made of conductor material, projection of at least two T shape feed structure in first feed layer is corresponded respectively at least two H-shaped feed gaps and is intersected vertically.The signal mode that 2 orthogonal amplitudes are equal and phase difference is 90 degree can be motivated during signal transmitting and receiving by above structure, to realize the circular polarisation function of antenna.As it can be seen that the circular polarisation function of microstrip antenna can be realized without adding feeding network in the microstrip antenna in the embodiment of the present application.Technical effect with the space accounting for reducing aerial loss and reduction microstrip antenna feeding network.
Description
Technical field
The present invention relates to microwave and millimeter wave field of antenna, more particularly to a kind of single feedback double-circle polarization microstrip antenna.
Background technique
Currently, with the continuous development of the communication technology, micro-strip paster antenna because its with small in size, light-weight, section is low,
The advantages that easy to process, the scope of application just constantly expand, and application demand is also just growing.However, traditional micro-strip day
Its narrow bandwidth of line, in order to realize that double-circle polarization, traditional microstrip antenna can also add feeding network, thereby result in aerial loss
Increase.Simultaneously as the signal frequency in the corresponding transmitting-receiving of antenna of millimeter wave frequency band is very high and wavelength very little, therefore it is required that right
Also very little, the layout for thus carrying out feeding network again just seem particularly difficult to the size for the microband antenna unit that should be worked.
It needs to add feeding network when realizing double-circle polarization function as it can be seen that microstrip antenna exists in the prior art, by
This causes aerial loss to increase, and the technical problem that microstrip antenna layout is difficult in millimeter wave frequency band that works.
Summary of the invention
The application provides a kind of single feedback double-circle polarization microstrip antenna, to solve the microstrip antenna existed in the prior art
It needs to add feeding network when realizing double-circle polarization function, thereby results in aerial loss increase, and work in millimeter wave frequency
Microstrip antenna layout difficult technical problem when section.
This application provides a kind of single feedback double-circle polarization microstrip antennas, comprising:
Antenna stack, including antenna medium substrate and the radiation patch that is arranged on one side surface of antenna medium substrate,
The radiation patch is the rectangular shape for cutting two right angles on a pair of of linea angulata；
Feed layer, attaching is arranged on another side surface of the antenna medium substrate, including feed dielectric layer, Yi Jifen
The first feed layer and the second feed layer in the feed dielectric layer both side surface Tie Fu be set, and first feed layer is
Conductor material layer including at least two H-shaped feed gaps, second feed layer include at least two be made of conductor material
A T shape feed structure, projection of at least two T shape feed structure in first feed layer and at least two H
Shape feed gaps correspond intersection, and the cross of the transverse arm of the T shape feed structure and the corresponding H-shaped feed gaps intersected respectively
Arm is parallel and is not overlapped, and first feed layer is between the antenna medium substrate and the feed dielectric layer；
Wherein, the transverse arm between each adjacent two H-shaped feed gaps in at least two H-shaped feed gaps hangs down mutually
The transverse arm between each adjacent two T shape feed structure directly and/or in at least two T shape feed structure is orthogonal.
Optionally, the feed layer further include:
The marginal position of the feed dielectric layer Yu second feed layer is arranged at least four first metal throuth holes,
In at least two T shape feed structure to be enclosed in.
Optionally, the feed layer further include:
The inside of the feed dielectric layer Yu second feed layer, and position is arranged at least one second metal throuth hole
Between each adjacent two T shape feed structure.
Optionally, the feed dielectric layer is microwave dielectric substrate or potsherd.
Optionally, the antenna stack includes:
First radiating layer, including first medium substrate and the first radiation patch being arranged on the first medium substrate surface
Piece；
Second radiating layer, attach be arranged on another side surface of first medium substrate, including second medium substrate and
The second radiation patch on the second medium substrate surface is set；
Wherein, second radiation patch is between the first medium substrate and the second medium substrate, described
The area of first radiation patch is greater than the area of second radiation patch, and second radiation patch is projected in first spoke
The area penetrated in patch is more than or equal to second area, and the second area is the half of the second radiation patch area.
Optionally, first radiation patch is the rectangular shape for cutting two right angles on the first diagonal line, institute
Stating the second radiation patch is the rectangular shape for cutting two right angles on the second diagonal line, first diagonal line with it is described
Second diagonal line is parallel；
Wherein, the side length ratio of first radiation patch and second radiation patch is consistent, and arranged direction is consistent.
Optionally, two trimmings of first radiation patch and two trimmings of second radiation patch are parallel.
Optionally, the conductor material is copper product and/or silver coating material.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
Technical solution in the embodiment of the present application can be by being arranged cut on a pair of of linea angulata two on antenna stack
Then the radiation patch of the rectangular shape at a right angle is respectively set on two apparent surfaces of feed dielectric layer including at least two
The conductor material layer of a H-shaped feed gaps, and setting includes at least two T shape feed structures being made of conductor material, institute
State projection of at least two T shape feed structures in first feed layer and at least two H-shaped feed gaps difference one
One correspondence intersects vertically.It can motivate that 2 orthogonal amplitudes are equal and phase during signal transmitting and receiving by above structure
The signal mode that difference is 90 degree, to realize the circular polarisation function of antenna.As it can be seen that the microstrip antenna in the embodiment of the present application is not necessarily to
Adding feeding network can be realized the circular polarisation function of microstrip antenna.With reduction aerial loss and reduce microstrip antenna transmission network
The technical effect of the space accounting of network.
Detailed description of the invention
Fig. 1 is a kind of every layer of three-dimensional structure diagram of single feedback double-circle polarization microstrip antenna provided in an embodiment of the present invention；
Fig. 2 is a kind of antenna stack structure chart of single feedback double-circle polarization microstrip antenna provided in an embodiment of the present invention；
Fig. 3 is that T shape feed structure provided in an embodiment of the present invention projects to the projection structure figure in the first feed layer.
Specific embodiment
The application provides a kind of single feedback double-circle polarization microstrip antenna, to solve the microstrip antenna existed in the prior art
It needs to add feeding network when realizing double-circle polarization function, thereby results in aerial loss increase, and work in millimeter wave frequency
Microstrip antenna layout difficult technical problem when section.
Technical solution in the embodiment of the present application is in order to solve the above technical problems, general thought is as follows:
Technical solution in the embodiment of the present application can be by being arranged cut on a pair of of linea angulata two on antenna stack
Then the radiation patch of the rectangular shape at a right angle is respectively set on two apparent surfaces of feed dielectric layer including at least two
The conductor material layer of a H-shaped feed gaps, and setting includes at least two T shape feed structures being made of conductor material, institute
State projection of at least two T shape feed structures in first feed layer and at least two H-shaped feed gaps difference one
One correspondence intersects vertically.It can motivate that 2 orthogonal amplitudes are equal and phase during signal transmitting and receiving by above structure
The signal mode that difference is 90 degree, to realize the circular polarisation function of antenna.As it can be seen that the microstrip antenna in the embodiment of the present application is not necessarily to
Adding feeding network can be realized the circular polarisation function of microstrip antenna.With the space for reducing aerial loss and reduction microstrip antenna
The technical effect of accounting.
Technical scheme is described in detail below by attached drawing and specific embodiment, it should be understood that the application
Specific features in embodiment and embodiment are the detailed description to technical scheme, rather than to present techniques
The restriction of scheme, in the absence of conflict, the technical characteristic in the embodiment of the present application and embodiment can be combined with each other.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, herein
Middle character "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
Embodiment one
Fig. 1, Fig. 2 and Fig. 3 are please referred to, the embodiment of the present application one provides a kind of single feedback double-circle polarization microstrip antenna, comprising:
Antenna stack, including antenna medium substrate and the radiation patch that is arranged on one side surface of antenna medium substrate,
The radiation patch is the rectangular shape for cutting two right angles on a pair of of linea angulata；
Feed layer, attaching be arranged on another side surface of the antenna medium substrate, including feed dielectric layer 120, with
And the first feed layer 121 and the second feed layer 122 being arranged in 120 both side surface of feed dielectric layer, institute are attached respectively
Stating the first feed layer 121 is the conductor material layer for including at least two H-shaped feed gaps 1210, and second feed layer 122 is wrapped
At least two T shape feed structures 1220 being made of conductor material are included, at least two T shape feed structure 1220 is described
Projection in one feed layer 121 corresponds respectively at least two H-shaped feed gaps 1210 intersects, and the T shape is presented
The transverse arm of electric structure 1220 is parallel with the transverse arm of the corresponding H-shaped feed gaps 1210 intersected and is not overlapped, first feed layer
121 between the antenna medium substrate and the feed dielectric layer 120；
Wherein, the cross between each adjacent two H-shaped feed gaps 1210 in at least two H-shaped feed gaps 1210
Arm is orthogonal and/or at least two T shape feed structure 1220 in each adjacent two T shape feed structure 1220 between
Transverse arm it is orthogonal；At least two H-shaped feed gaps 1210 are projected in at least two T shape feed structure 1220
Area in the radiation patch is more than or equal to the first area, and first area is at least two H-shaped feed gaps
1210 with the half of the gross area of at least two T shape feed structure 1220.
It should be pointed out that the quantity point of H-shaped feed gaps 1210 and T shape feed structure 1220 in the embodiment of the present application
It Wei not be 2.
In actual application, when the microstrip antenna in the embodiment of the present application carries out signal transmitting work, signal can
To be then communicated to the cross of T shape feed structure 1220 from the top feed-in of the center vertical part of the T shape feed structure 1220
Arm position is transferred to corresponding H-shaped feed gaps 1210 by way of radiation feeding, is further radiated again by radiation patch
Into space.As shown in figure 3, since the transverse arm between two H-shaped feed gaps 1210 is orthogonal, and two T shape feeds
Transverse arm between structure 1220 is orthogonal, therefore the placing direction of 2 H-shaped feed gaps 1210 differs 90 °, corresponding T shape
The placing direction of feed structure 1220 also differs 90 °.Signal is in transmission process based on the path direction and spoke that it is transmitted
The corner cut processing on the diagonal line of patch progress is penetrated, may be implemented to motivate that 2 orthogonal amplitudes are equal and phase difference is 90 degree
Signal mode, be achieved in the circular polarisation function of antenna.Again since the operating mode of antenna can be reciprocity, connecing
It can also realize that signal receives work according to above-mentioned opposite process during the collection of letters number.
Meanwhile it can be by the gap length of control H-shaped feed gaps 1210, width and in institute in practical operation
The present position in the first feed layer 121 is stated, realizes the microstrip antenna in the embodiment of the present application and between different broadband signals
Matching；It on the other hand, can also be by the length of control T shape feed structure 1220, width and in second feed layer
Present position on 122, and further realize the matching degree between microstrip antenna and different broadband signals.
It can be seen that the technical solution in the embodiment of the present application can be cut by being arranged on antenna stack in pair of horns
Then the radiation patch of the rectangular shape at two right angles on line is set respectively on two apparent surfaces of feed dielectric layer 120
The conductor material layer including at least two H-shaped feed gaps 1210 is set, and setting includes at least two be made of conductor material
A T shape feed structure 1220, projection and institute of at least two T shape feed structure 1220 in first feed layer 121
It states at least two H-shaped feed gaps 1210 and corresponds respectively and intersect vertically.It can during signal transmitting and receiving by above structure
To motivate the signal mode that 2 orthogonal amplitudes are equal and phase difference is 90 degree, to realize the circular polarisation function of antenna.
As it can be seen that the circular polarisation function of microstrip antenna can be realized without adding feeding network in the microstrip antenna in the embodiment of the present application.Tool
There is the technical effect for the space accounting for reducing aerial loss and reducing microstrip antenna feeding network.
Further in the embodiment of the present application, the feed layer further include setting the feed dielectric layer 120 with it is described
At least four first metal throuth holes 103 of the marginal position of the second feed layer 122 pass through at least four first metal throuth hole
103 at least two T shape feed structure 1220 can be enclosed in.The feed layer further includes at least one second metal
Through-hole 104, is arranged in the inside of the feed dielectric layer 120 and second feed layer 122, and is located at each adjacent two T shape
Between feed structure 1220.
The feed dielectric layer 120 in the embodiment of the present application microstrip antenna can be improved by first metal throuth hole 103
And the second isolation between feed layer 122 and other conductive components；T shape can be improved by second metal throuth hole 104
Isolation between feed structure 1220.Therefore the technical solution in the embodiment of the present application also has the letter promoted in microstrip antenna
Low-loss technical effect, drops in number transmission performance.
Still further, the antenna stack in the embodiment of the present application is double-layer structure, comprising:
First radiating layer, including first medium substrate 1110 and be arranged on 1110 surface of first medium substrate the
One radiation patch 1111；
Second radiating layer attaches and is arranged on another side surface of the first medium substrate 1110, including second medium base
Piece 1120 and the second radiation patch 1121 being arranged on 1120 surface of second medium substrate；
Wherein, second radiation patch 1121 is in the first medium substrate 1110 and the second medium substrate
Between 1120, the area of first radiation patch 1111 is greater than the area of second radiation patch 1121, second spoke
It penetrates the area that patch 1121 is projected in first radiation patch 1111 and is more than or equal to second area, the second area is institute
State the half of 1121 area of the second radiation patch.
Meanwhile first radiation patch 1111 is the rectangular shape for cutting two right angles on the first diagonal line,
Second radiation patch 1121 is the rectangular shape for cutting two right angles on the second diagonal line, first diagonal line
It is parallel with second diagonal line；Wherein, the side ratio of first radiation patch 1111 and second radiation patch 1121
Example is consistent, and arranged direction is consistent.Two trimmings of first radiation patch 1111 and second radiation patch 1121
Two trimmings are parallel.
It, can be into one by adjusting the size of the first radiation patch 1111 and the second radiation patch 1121 and the size of corner cut
More preferably circular polarisation performance is realized in step optimization；And the thickness by adjusting first medium substrate 1110 and second medium substrate 1120
Degree, can also further promote the matching degree between microstrip antenna and broadband signal.
It should be pointed out that the feed dielectric layer 120 can be microwave dielectric substrate or potsherd, user can basis
It needs and self-setting.And in the embodiment of the present application, the feed dielectric layer 120 can be microwave PCB material substrate；It is described
Conductor material is copper product and/or silver coating material or the preferable material of other electric conductivities.
Although the preferred embodiment of the application has been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the application range.
Obviously, those skilled in the art can carry out various modification and variations without departing from the essence of the application to the application
Mind and range.Further, each method and step in technical scheme can overturn, and convert sequencing and still fall
Enter in the invention scope that the application is covered.In this way, if these modifications and variations of the application belong to the claim of this application
And its within the scope of equivalent technologies, then the application is also intended to include these modifications and variations.
Claims (8)
1. a kind of single feedback double-circle polarization microstrip antenna characterized by comprising
Antenna stack, it is described including antenna medium substrate and the radiation patch being arranged on one side surface of antenna medium substrate
Radiation patch is the rectangular shape for cutting two right angles on a pair of of linea angulata；
Feed layer, attaching is arranged on another side surface of the antenna medium substrate, including feed dielectric layer and pastes respectively
The first feed layer and the second feed layer set in the feed dielectric layer both side surface are set up, first feed layer is to include
The conductor material layer of at least two H-shaped feed gaps, second feed layer include at least two T shapes being made of conductor material
Feed structure, projection of at least two T shape feed structure in first feed layer and at least two H-shaped are fed
Gap corresponds intersection respectively, and the transverse arm of the T shape feed structure is parallel with the transverse arm of the corresponding H-shaped feed gaps intersected
And be not overlapped, first feed layer is between the antenna medium substrate and the feed dielectric layer；
Wherein, the transverse arm between each adjacent two H-shaped feed gaps in at least two H-shaped feed gaps is orthogonal,
And/or the transverse arm between each adjacent two T shape feed structure in at least two T shape feed structure is orthogonal.
2. microstrip antenna as described in claim 1, which is characterized in that the feed layer further include:
The marginal position of the feed dielectric layer Yu second feed layer is arranged at least four first metal throuth holes, will
In at least two T shape feed structure is enclosed in.
3. microstrip antenna as described in claim 1, which is characterized in that the feed layer further include:
The inside of the feed dielectric layer Yu second feed layer is arranged at least one second metal throuth hole, and is located at every
Between two neighboring T shape feed structure.
4. microstrip antenna described in claim 1-3 any claim, which is characterized in that the feed dielectric layer is microwave Jie
Matter substrate or potsherd.
5. microstrip antenna as described in claim 1, which is characterized in that the antenna stack includes:
First radiating layer, including first medium substrate and the first radiation patch being arranged on the first medium substrate surface；
Second radiating layer attaches and is arranged on another side surface of first medium substrate, including second medium substrate and setting
The second radiation patch on the second medium substrate surface；
Wherein, second radiation patch is between the first medium substrate and the second medium substrate, and described first
The area of radiation patch is greater than the area of second radiation patch, and second radiation patch is projected in the first radiation patch
Area in piece is more than or equal to second area, and the second area is the half of the second radiation patch area.
6. microstrip antenna as described in claim 1, which is characterized in that first radiation patch is to cut in first diagonally
The rectangular shape at two right angles on line, second radiation patch are the square for cutting two right angles on the second diagonal line
Shape shape, first diagonal line are parallel with second diagonal line；
Wherein, the side length ratio of first radiation patch and second radiation patch is consistent, and arranged direction is consistent.
7. microstrip antenna as claimed in claim 6, which is characterized in that two articles of trimmings of first radiation patch and described the
Two trimmings of two radiation patch are parallel.
8. microstrip antenna as described in claim 1, which is characterized in that the conductor material is copper product and/or silver-plated material
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910380889.3A CN110190387A (en) | 2019-05-08 | 2019-05-08 | A kind of single feedback double-circle polarization microstrip antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910380889.3A CN110190387A (en) | 2019-05-08 | 2019-05-08 | A kind of single feedback double-circle polarization microstrip antenna |
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| CN110190387A true CN110190387A (en) | 2019-08-30 |
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| CN201910380889.3A Pending CN110190387A (en) | 2019-05-08 | 2019-05-08 | A kind of single feedback double-circle polarization microstrip antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110911834A (en) * | 2019-12-02 | 2020-03-24 | 成都瑞迪威科技有限公司 | Phased array antenna capable of realizing left-right rotation circular polarization switching |
| CN112994808A (en) * | 2021-05-20 | 2021-06-18 | 成都天锐星通科技有限公司 | Radio frequency signal internal calibration system and phased array antenna |
| CN114696082A (en) * | 2022-04-27 | 2022-07-01 | 西安茂德通讯科技有限公司 | Structure for improving polarization bandwidth of micro microstrip antenna |
| WO2023092305A1 (en) * | 2021-11-23 | 2023-06-01 | 北京小米移动软件有限公司 | Antenna unit, array, beam scanning method, communication apparatus, and storage medium |
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| CN104852158A (en) * | 2015-04-13 | 2015-08-19 | 复旦大学 | P-band broadband high-isolation double circularly-polarized thin-film array antenna |
| CN107342458A (en) * | 2017-07-02 | 2017-11-10 | 中国航空工业集团公司雷华电子技术研究所 | A kind of corner-fed formula wide-band high-isolation dual-polarized antenna |
| CN210296621U (en) * | 2019-05-08 | 2020-04-10 | 成都天锐星通科技有限公司 | Single-feed double-circular-polarization microstrip antenna |
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- 2019-05-08 CN CN201910380889.3A patent/CN110190387A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852158A (en) * | 2015-04-13 | 2015-08-19 | 复旦大学 | P-band broadband high-isolation double circularly-polarized thin-film array antenna |
| CN107342458A (en) * | 2017-07-02 | 2017-11-10 | 中国航空工业集团公司雷华电子技术研究所 | A kind of corner-fed formula wide-band high-isolation dual-polarized antenna |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110911834A (en) * | 2019-12-02 | 2020-03-24 | 成都瑞迪威科技有限公司 | Phased array antenna capable of realizing left-right rotation circular polarization switching |
| CN112994808A (en) * | 2021-05-20 | 2021-06-18 | 成都天锐星通科技有限公司 | Radio frequency signal internal calibration system and phased array antenna |
| CN112994808B (en) * | 2021-05-20 | 2021-07-27 | 成都天锐星通科技有限公司 | Radio frequency signal internal calibration system and phased array antenna |
| WO2023092305A1 (en) * | 2021-11-23 | 2023-06-01 | 北京小米移动软件有限公司 | Antenna unit, array, beam scanning method, communication apparatus, and storage medium |
| CN114696082A (en) * | 2022-04-27 | 2022-07-01 | 西安茂德通讯科技有限公司 | Structure for improving polarization bandwidth of micro microstrip antenna |
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