CN108232432A - A kind of single feedback broadband low section circular polarization microstrip antenna - Google Patents
A kind of single feedback broadband low section circular polarization microstrip antenna Download PDFInfo
- Publication number
- CN108232432A CN108232432A CN201711266865.2A CN201711266865A CN108232432A CN 108232432 A CN108232432 A CN 108232432A CN 201711266865 A CN201711266865 A CN 201711266865A CN 108232432 A CN108232432 A CN 108232432A
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- patch
- main
- center
- main patch
- single feedback
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- 230000010287 polarization Effects 0.000 title claims abstract description 19
- 230000003071 parasitic effect Effects 0.000 claims abstract description 10
- 239000000758 substrate Substances 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 4
- 238000005388 cross polarization Methods 0.000 description 7
- 238000004088 simulation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000024241 parasitism Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
- H01Q1/288—Satellite antennas
-
- 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
-
- 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
Abstract
The invention discloses a kind of single feedback broadband low section circular polarization microstrip antennas, include one piece of medium substrate, the bottom of the medium substrate applies copper as floor, top layer setting introduces the main patch and parasitic patch of geometry perturbation, and is fed using sub-miniature A connector or the main patch of coaxial pair, wherein, the parasitic patch is distributed in main patch periphery, quantity at least there are two, shape is cyclic annular as the fan in the center of circle using main patch center, and about center rotational symmetry.The present invention can effectively realize the circular polarisation for satellite communication, have many advantages, such as that simple, light-weight, one-way radiation is processed in design.
Description
Technical field
The present invention relates to wireless communication and antenna technical fields, refer in particular to a kind of single feedback broadband low section circularly polarization microstrip
Antenna.
Background technology
In recent years, Satellite Navigation Technique is grown rapidly, Chinese Beidou satellite navigation system is also expected to carry in the year two thousand twenty
For global service.Due to the relative motion between satellite and ground, in order to allow ground different places that can receive satellite-signal,
Optimal selection is become using circular polarized antenna on satellite.Again since microstrip antenna has light-weight remarkable advantage, so circle
Polarization micro-strip antenna becomes best choice again and attracts attention.Further, since antenna is mounted on satellite, so needing to introduce floor
To realize to ground one-way radiation.
If it is known that orthogonally located there are two, amplitude is equal but phase differs 90 degree of line current, then the two
The radiation field that line current generates will synthesize a circular polarisation electromagnetic wave, this exactly traditionally realizes the substantially former of circular polarized antenna
Reason.For microstrip antenna, in order to go out the line current of two 90 degree of phases differences in its surface actuator, there are single feedback and two kinds of shapes of double-fed
Formula is available.
Single feedback refers to microband paste, and only there are one distributing points, and the monolithic microstrip antenna of a regular shape can by some feed
Two equal degenerate modes of polarization orthogonal, amplitude are generated, but cannot generally form 90 degree of phase differences, but micro- by introducing geometry
It disturbs, the resonant frequency of degeneracy orthogonal mode is made to generate separation, working frequency is selected between two resonant frequencies, when geometry perturbation selects
When suitable, for working frequency, advanced 45 degree of the impedance angle of a mould, and the impedance angle of another mould lags 45 degree, by
This forms circular polarization radiation.The advantages of single feedback method is without additional phase-shift network and power divider, simple in structure, cost
It is low.Shortcoming is that axial ratio bandwidth is relatively narrow.
More feedback methods refer to using feeding network, and feeding network output end signal should amplitude it is equal, quadrature in phase, with
Ensure circular polarisation operating condition.Feeding network is frequently with T-branch or 3dB electric bridges.The advantages of more feedback methods is can to improve impedance
Bandwidth and axial ratio bandwidth inhibit cross polarization.Shortcoming is that feeding network is more complicated, and size is larger.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art, it is proposed that a kind of single feedback broadband low section circularly polarization microstrip
Antenna can effectively realize the circular polarisation for satellite communication, have many advantages, such as that simple, light-weight, one-way radiation is processed in design.
To achieve the above object, technical solution provided by the present invention is：A kind of single feedback broadband low section circularly polarization microstrip
Antenna, the bottom of the medium substrate apply copper as floor, and top layer setting introduces the main patch and parasitic patch of geometry perturbation, and
It is fed using sub-miniature A connector or the main patch of coaxial pair, wherein, the parasitic patch is distributed in main patch periphery, and quantity is extremely
There are two few, shape is cyclic annular as the fan in the center of circle using main patch center, and about center rotational symmetry.
The main patch is the square for introducing geometry perturbation, circle, circular ring shape, ellipse, triangle, pentagon patch
Piece.
Compared with prior art, the present invention having the following advantages that and advantageous effect：
1st, form is presented using single, without adding additional circuit, design is simple.
2nd, microstrip antenna has single radial characteristic, is bonded very much the demand of satellite communication.
3rd, this antenna is easy to manufacture, at low cost, and planar structure is easily integrated.
Description of the drawings
Fig. 1 is the vertical view of inventive antenna.
Fig. 2 is the side view of inventive antenna.
Fig. 3 is the S11 parameters simulation results of inventive antenna.
Fig. 4 is that the axis of inventive antenna compares simulation result.
Fig. 5 is that directive gain simulation result is penetrated on the side of inventive antenna.
Fig. 6 is that inventive antenna E faces (phi=0deg) at centre frequency is main polarization and Cross polarization pattern emulation is tied
Fruit.
Fig. 7 is that inventive antenna H faces (phi=90deg) at centre frequency is main polarization and Cross polarization pattern emulates
As a result.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
Ginseng is seen figure 1 and figure 2, single feedback broadband low section circular polarization microstrip antenna described in the present embodiment, using one piece
Copper is covered as floor 2 in medium substrate 1, size 200mm*200mm*3.2mm, bottom surface, and top surface is main patch 3 and parasitic patch
41 and 42.Main patch is the circular patch with fluting 51 and 52, and main patch radius is 18mm, and the size of fluting is all 5mm*
3.3mm, parasitic patch are two fan rings, and internal diameter and outer diameter are respectively 30mm and 38mm, central angle phi=54.5 degree, in addition
Parasitism fans ring center and Y-axis into theta=20 degree angle.Main patch is fed using sub-miniature A connector 6, feed placement and X
Axis is into alpha=45 degree angle, and from round main patch centre distance 8mm.
Fig. 3 is the present embodiment antenna | S11 | simulation result, as seen from the figure, and the antenna | S11 | the frequency band less than -10dB
For 2.14-2.28GHz, centre frequency 2.21GHz, relative impedances bandwidth is 6.3%.
Fig. 4 be the axis of the present embodiment antenna than simulation result, as seen from the figure, frequency band of the antenna axial ratio less than 3dB is
2.18-2.27GHz is 4.1% with respect to axial ratio bandwidth, without the relative axle of the single feedback circular polarization microstrip antenna of tradition of parasitic patch
It is 1.5% than bandwidth, it is seen then that after introducing parasitic patch, 173% is increased with respect to axial ratio bandwidth.
Fig. 5 is that directive gain simulation result is penetrated on the side of the present embodiment antenna, and as seen from the figure, which turns to dextrorotation circle
Polarization, cross polarization are left-hand circular polarization, and it is respectively 2.8dBi and -15dBi that centre frequency, which goes out the two gain, and cross polarization is than big
In 17dB.
Fig. 6 and Fig. 7 is that the centre frequency of the present embodiment antenna is in E faces (phi=0deg) and H faces (phi=respectively
Direction Pattern Simulation result on 90deg).As seen from the figure, the cross polarization of E faces is less than -7dB, and main polarization -3dB main lobe widths are about
It is 110 degree, front and rear than being more than 30dB.The cross polarization of H faces is less than -6dB, and main polarization -3dB main lobe widths are also about 110 degree, front and rear
Than being more than 30dB.As it can be seen that antenna has good single radial characteristic.
Embodiment described above is only the preferred embodiments of the invention, and but not intended to limit the scope of the present invention, therefore
The variation that all shape, principles according to the present invention are made should all be covered within the scope of the present invention.
Claims (2)
1. a kind of single feedback broadband low section circular polarization microstrip antenna, includes one piece of medium substrate, it is characterised in that：The medium
The bottom of substrate applies copper as floor, and top layer setting introduces the main patch and parasitic patch of geometry perturbation, and using sub-miniature A connector or
The main patch of coaxial pair is fed, wherein, the parasitic patch is distributed in main patch periphery, quantity at least there are two, shape
To be cyclic annular as the fan in the center of circle using main patch center, and about center rotational symmetry.
2. a kind of single feedback broadband low section circular polarization microstrip antenna according to claim 1, it is characterised in that：The main patch
Piece is square, circle, circular ring shape, ellipse, triangle, the pentagon patch for introducing geometry perturbation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266865.2A CN108232432A (en) | 2017-12-05 | 2017-12-05 | A kind of single feedback broadband low section circular polarization microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711266865.2A CN108232432A (en) | 2017-12-05 | 2017-12-05 | A kind of single feedback broadband low section circular polarization microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108232432A true CN108232432A (en) | 2018-06-29 |
Family
ID=62653229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711266865.2A Pending CN108232432A (en) | 2017-12-05 | 2017-12-05 | A kind of single feedback broadband low section circular polarization microstrip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108232432A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449586A (en) * | 2018-11-09 | 2019-03-08 | 吉林大学 | A kind of circular polarisation annular-ring microstrip antenna with bending stub ground plane |
| CN110797662A (en) * | 2019-06-04 | 2020-02-14 | 曲阜师范大学 | Broadband reflection type electromagnetic wave polarization rotating super surface |
| CN112909580A (en) * | 2021-01-26 | 2021-06-04 | 华南理工大学 | Low-profile circularly polarized equal-flux antenna module |
| WO2024020823A1 (en) * | 2022-07-27 | 2024-02-01 | 京东方科技集团股份有限公司 | Circularly polarized antenna and array antenna |
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| US20030063031A1 (en) * | 2001-10-03 | 2003-04-03 | Kin-Lu Wong | Broadband circularly polarized patch antenna |
| CN101083357A (en) * | 2007-07-11 | 2007-12-05 | 南京大学 | Omnidirectional radiative microstrip aerial |
| CN101102011A (en) * | 2007-07-12 | 2008-01-09 | 上海交通大学 | Coplanar wave guide feedback broadband circle polarized millimeter wave plane gap antenna |
| CN101807748A (en) * | 2010-04-13 | 2010-08-18 | 湖南大学 | Broadband circularly polarization microstrip patch antenna |
| CN203134984U (en) * | 2012-11-20 | 2013-08-14 | 安徽四创电子股份有限公司 | High-performance small-sized circular polarized microstrip antenna |
| CN104701628A (en) * | 2015-03-12 | 2015-06-10 | 西安电子科技大学 | Broadband circularly polarized micostrip antenna |
| CN104701612A (en) * | 2015-03-03 | 2015-06-10 | 河南师范大学 | Microstrip antenna for low-orbit satellite communication |
| CN104882672A (en) * | 2015-05-28 | 2015-09-02 | 电子科技大学 | Wide bandwidth wave beam circular polarization Yagi-microstrip antenna |
| CN105742808A (en) * | 2016-05-06 | 2016-07-06 | 上海航天测控通信研究所 | Circularly-polarized microstrip antenna |
| CN106785408A (en) * | 2017-01-24 | 2017-05-31 | 桂林电子科技大学 | Broadband low section omnidirectional circular-polarized antenna |
| CN207611866U (en) * | 2017-12-05 | 2018-07-13 | 华南理工大学 | A kind of single feedback broadband low section circular polarization microstrip antenna |
-
2017
- 2017-12-05 CN CN201711266865.2A patent/CN108232432A/en active Pending
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| US20030063031A1 (en) * | 2001-10-03 | 2003-04-03 | Kin-Lu Wong | Broadband circularly polarized patch antenna |
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| CN101102011A (en) * | 2007-07-12 | 2008-01-09 | 上海交通大学 | Coplanar wave guide feedback broadband circle polarized millimeter wave plane gap antenna |
| CN101807748A (en) * | 2010-04-13 | 2010-08-18 | 湖南大学 | Broadband circularly polarization microstrip patch antenna |
| CN203134984U (en) * | 2012-11-20 | 2013-08-14 | 安徽四创电子股份有限公司 | High-performance small-sized circular polarized microstrip antenna |
| CN104701612A (en) * | 2015-03-03 | 2015-06-10 | 河南师范大学 | Microstrip antenna for low-orbit satellite communication |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449586A (en) * | 2018-11-09 | 2019-03-08 | 吉林大学 | A kind of circular polarisation annular-ring microstrip antenna with bending stub ground plane |
| CN110797662A (en) * | 2019-06-04 | 2020-02-14 | 曲阜师范大学 | Broadband reflection type electromagnetic wave polarization rotating super surface |
| CN112909580A (en) * | 2021-01-26 | 2021-06-04 | 华南理工大学 | Low-profile circularly polarized equal-flux antenna module |
| US11742594B2 (en) | 2021-01-26 | 2023-08-29 | South China University Of Technology | Low-profile circularly polarized isoflux antenna module |
| WO2024020823A1 (en) * | 2022-07-27 | 2024-02-01 | 京东方科技集团股份有限公司 | Circularly polarized antenna and array antenna |
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