CN108429001A - A kind of multipolarization reconfigurable antenna - Google Patents
A kind of multipolarization reconfigurable antenna Download PDFInfo
- Publication number
- CN108429001A CN108429001A CN201810190101.8A CN201810190101A CN108429001A CN 108429001 A CN108429001 A CN 108429001A CN 201810190101 A CN201810190101 A CN 201810190101A CN 108429001 A CN108429001 A CN 108429001A
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- CN
- China
- Prior art keywords
- antenna
- switch
- polarization
- circular polarization
- multipolarization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
-
- 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
- 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
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention discloses a kind of multipolarizations, i.e. linear polarization and left-right-hand circular polarization reconstructable microstrip aerial, belong to microwave antenna art field.The present invention includes dielectric substrate, metal ground plate, radiation patch, switch and tuning minor matters.It is connected with one section of transmission line by a switch after radiation patch corner cut, by changing the reconstruct between on off state realization linear polarization and left and right hand circular polarization.The present invention only introduces single tuning minor matters just and realizes the restructural of linear polarization and left-right-hand circular polarization, entire antenna structure is simple using fixed one-way feed；Compared to the multipolarization reconfigurable antenna for using multiple switch to control, a switch is used only in this antenna, to simplified structure, improves reliability and further reduces the cost.Present invention can apply to radar and communication system etc., as being applied to aircraft, naval vessel, on car-mounted device, and wireless communication fixation or mobile terminal device on.
Description
Technical field
The invention belongs to microwave antenna art fields, and in particular to a kind of linear polarization and the restructural day of left-right-hand circular polarization
Line meets the requirement of switching antenna polarization state as needed.
Background technology
The polarization of antenna refers to antenna in radiated electromagnetic wave, and the orientation of electric field vector is at any time on the set point of space
The characteristic of variation, the track that is changed over time with the endpoint of electric field vector describe.The polarization of antenna be divided into linear polarization,
Circular polarisation and elliptic polarization.When according to linear polarized antenna as receiving terminal, polarization mismatch phenomenon is easily generated, day is seriously affected
Line tranception-quality.And circular polarized antenna has the following advantages that：Circular polarized antenna can receive the incoming wave of arbitrary linear polarization, circular polarisation day
The circularly polarised wave of beta radiation can also be received by arbitrary polarized antenna；Circular polarized antenna has rotation direction orthogonality, if antenna spoke
Right-handed circular polarization wave is penetrated, then only receives left-hand circular polarization wave without receiving right-handed circular polarization wave, vice versa；It is orthogonal using rotation direction
Property can reach more satisfactory polarization isolation；Circularly polarised wave is incident on symmetric targets, back wave become derotation to etc..Just because of
These features make circular polarized antenna have stronger anti-interference ability, have been widely used in electronic reconnaissance, electronic interferences, electricity
The fields such as son confrontation, communication and radar.
Linear polarization and left and right rotation polarized state of the multipolarization reconfigurable antenna by reconfigurable antenna radiated wave, eliminate multipath
The influences such as the signal fadeout caused by effect solve the problems such as polarization mismatch in wireless communication, to improve system well
Anti-interference ability in changing environment.Currently, multipolarization reconstructable microstrip aerial is there are many realization method, but overall structure compared with
It is complexity and needs, compared with Multi- Switch, to keep the reduction of its reliability, cost higher, cannot be satisfied the application demand of wireless communication system.
Document " A reconfigurable slot antenna with switchable polarization
(Matthias K.Fires, IEEE Microwave and Wireless Components Letters, Nov.2003) " is carried
A kind of multipolarization reconfigurable antenna of achievable linear polarization and circular polarisation switching is supplied.The antenna mainly carries perturbation knot by one
The annular slot of structure forms, and using microstrip stubs couple feed, perturbed structure controls its work shape by multiple PIN diodes
State.For example, left-hand circular polarization wave can be generated by controlling some specific switch on and off, and controls another part and specifically switch
Break-make can generate right-handed circular polarization wave.The polarization reconfigurable antenna of this structure is numerous because needing multiple switch, biasing networks design
It is trivial, overall dimensions are also increased, engineering requirements are cannot be satisfied.
Document " A novel single-feed circular microstrip antenna with
Reconfigurable polarization capability (B.Kim, IEEE Transactions on Antennas
And Propagation, Mar.2008) " a kind of multipolarization reconstructable microstrip aerial by feed microstrip line is given, it can be real
Switching between existing linear polarization, left-hand circular polarization, right-handed circular polarization.But the antenna has used multiple lamped elements, and
Microstrip feed line part has multiple matching minor matters, biasing networks design complicated.
Document " A polarization reconfigurable patch antenna with loop slots on
The ground plane (X.-X.Yang, IEEE Antennas and Wireless Propagation Letters,
Vol.11,2012 a kind of restructural Square Microstrip Antenna of polarization) " is devised.The antenna is in square-shaped radiation patch with the two of one side
A slot is had on the corresponding grounding plate in a corner, and places a switching diode respectively in two slots, is led to
It crosses to control to switch on-off and realizes that polarization is restructural.The antenna has used two switches and has slotted on the ground, and structure is still complicated.
Invention content
The purpose of the present invention is overcoming the defect of the above-mentioned prior art, a kind of multipolarization (linear polarization and left and right rounding are provided
Polarization) restructural microstrip antenna.
Technical problem proposed by the invention solves in this way：
A kind of multipolarization reconfigurable antenna, including dielectric substrate 13, metal ground plate 14, radiation patch 1, switch 2 and tune
Humorous minor matters 3；Metal ground plate 14 is located at the lower surface of dielectric substrate 13；Radiation patch 1, switch 2 and tuning minor matters 3 are located at medium
The upper surface of substrate 13；Minor matters 3 are tuned by being connected at switch 2 and the corner cut of the radiation patch 1 of rectangle corner cut；
By controlling the switching state of switch 2, can make the working condition of antenna left-hand circular polarization and right-handed circular polarization it
Between switch.
Further, the switch 2 is varactor.By controlling the capacitance of varactor, can control described
The working condition of antenna switches between linear polarization, left-hand circular polarization, right-handed circular polarization.
Further, antenna of the present invention using fixed one-way feed, fix feeding classification and include but not limited to by single channel
Feed microstrip line further includes the modes such as coaxial feed, electromagnetic coupling feed.
Further, tuning minor matters 3 are one section of transmission line.
Further, the corner cut of radiation patch 1 be isosceles right triangle, or it is arc-shaped, square etc. other
Shape.
Further, the corner cut position of radiation patch 1 includes but are not limited to the upper right corner, radiation patch 1 also may be selected
One of its excess-three angle, specific corner cut position refer to feeding classification and feed point position.
The beneficial effects of the invention are as follows：
(1) multipolarization reconfigurable antenna of the present invention is easy to process, can be realized by common planar circuit processing technology,
Size is small, at low cost, reliability is high, by the size for adjusting rectangular radiation patch, it is convenient to the working frequency of antenna is adjusted,
It is applied widely.
(2) antenna of the present invention is using fixed one-way feed, and can select feed microstrip line, coaxial according to actual needs
A variety of feed forms such as feed, electromagnetic coupling feed, to simplify antenna structure and increase the plasticity of structure.
(3) antenna of the present invention is only with a degenerate mode separative element, and need to only adjust only one switch
Realize that linear polarization, the switching of left-hand circular polarization and right-handed circular polarization radiation mode realize the restructural work(of polarization in a manner of easy
Energy.
Description of the drawings
Fig. 1 is antenna structure principle schematic of the present invention；
Fig. 2 be achievable linear polarization provided by the invention, left-hand circular polarization and right-handed circular polarization reconfigurable antenna knot
Structure schematic diagram；
Fig. 3 be that achievable linear polarization provided by the invention, left-hand circular polarization and right-handed circular polarization reconfigurable antenna are specific
The structural schematic diagram of embodiment；
Standing-wave ratio simulation curve when Fig. 4 is antenna right-handed circular polarization of the embodiment of the present invention；
Fig. 5 is that the axis of antenna right-handed circular polarization of the embodiment of the present invention compares simulation curve；
Fig. 6 is the right-handed circular polarization of antenna of the embodiment of the present invention in 2.42GHz, phi=0 ° of simulated gain curve；
Fig. 7 is the right-handed circular polarization of antenna of the embodiment of the present invention in 2.42GHz, phi=90 ° of simulated gain curve；
Fig. 8 is the standing-wave ratio simulation curve of antenna left-hand circular polarization of the embodiment of the present invention；
Fig. 9 is that the axis of antenna left-hand circular polarization of the embodiment of the present invention compares simulation curve；
Figure 10 is the left-hand circular polarization of antenna of the embodiment of the present invention in 2.39GHz, phi=0 ° of simulated gain curve；
Figure 11 is the left-hand circular polarization of antenna of the embodiment of the present invention in 2.39GHz, phi=90 ° of simulated gain curve；
Figure 12 is the standing-wave ratio simulation curve of antenna linear polarization of the embodiment of the present invention；
Figure 13 is antenna of embodiment of the present invention linear polarization in 2.415GHz, phi=0 ° of simulated gain curve；
Figure 14 is antenna of embodiment of the present invention linear polarization in 2.415GHz, phi=90 ° of simulated gain curve.
Specific implementation mode
The present invention is further detailed with reference to the accompanying drawings and examples.
The present embodiment provides a kind of multipolarization reconfigurable antenna, principle schematic is as shown in Figure 1, locations of structures is closed
It is schematic diagram as shown in Fig. 2, concrete structure schematic diagram is as shown in figure 3, including dielectric substrate 13, metal ground plate 14, radiation patch
Piece 1, switch 2 and tuning minor matters 3；Metal ground plate 14 is located at the lower surface of dielectric substrate 13；Radiation patch 1, switch 2 and tuning
Minor matters 3 are located at the upper surface of dielectric substrate 13；Tuning minor matters 3 pass through switch 2 and phase at the corner cut of the radiation patch 1 of rectangle corner cut
Even；
The present embodiment uses feed microstrip line mode, thickness h=1.5mm of dielectric substrate, relative dielectric constant εr=
2.65；
Radiation patch 1 is square corner cut radiating element, and the square length of side is 36.8mm, and the corner cut of radiation patch is isosceles
Right angled triangle, right angle length of side 5.6mm；
Switch 2 is varactor, capacitance variation ranging from 0.1pF to 56pF；
It is short-circuit minor matters transmission line, line width 1.8mm, line length 7.4mm to tune minor matters 3；
4,8 be a quarter waveguide wavelength high resistant line, long 20mm, wide 0.1mm；
5 be a quarter waveguide wavelength impedance matching line, long 20mm, wide 1mm；
6 be 50 ohm transmission line of characteristic impedance, wide 4mm；
7 be the capacitance of 10pF；
The direct current access point of 9 on off states in order to control；
10 be the filter capacitor of 33pF；
11,12 be metallic vias, radius 0.5mm.
After determining above-mentioned size and parameter, the present embodiment is emulated using electromagnetic simulation software.
Fig. 4 is the standing-wave ratio simulation curve of present example antenna right-handed circular polarization, and 2 capacitance of varactor is at this time
0.13pF, for Antenna Operation in right-handed circular polarization state, the bandwidth of VSWR≤2 is 2.405GHz-2.453GHz.
Fig. 5 is that the axis of present example antenna right-handed circular polarization compares simulation curve.Corresponding to axial ratio bandwidth (AR≤3dB) is
2.41GHz-2.43GHz。
Fig. 6 is the right-handed circular polarization of present example antenna in 2.42GHz, phi=0 ° of simulated gain curve.Maximum gain
At θ=0 °, maximum gain 7.91dB.
Fig. 7 is the right-handed circular polarization of present example antenna in 2.42GHz, phi=90 ° of simulated gain curve.Most increase
Benefit is at θ=0 °, maximum gain 7.92dB.
Fig. 8 is the standing-wave ratio simulation curve of present example antenna left-hand circular polarization, and 2 capacitance of varactor is at this time
56PF, for Antenna Operation in left-hand circular polarization state, the bandwidth of VSWR≤2 is 2.407GHz-2.425GHz.
Fig. 9 is that the axis of present example antenna left-hand circular polarization compares simulation curve.Corresponding to axial ratio bandwidth (AR≤3dB) is
2.38GHz-2.40GHz。
Figure 10 is the left-hand circular polarization of present example antenna in 2.39GHz, phi=0 ° of simulated gain curve.Most increase
Benefit is at θ=0 °, maximum gain 7.86dB.
Figure 11 is the left-hand circular polarization of present example antenna in 2.39GHz, phi=90 ° of simulated gain curve.Most increase
Benefit is at θ=0 °, maximum gain 7.86dB.
Figure 12 is the standing-wave ratio simulation curve of present example antenna linear polarization, and 2 capacitance of varactor is at this time
1pF, for Antenna Operation in linear polarization state, the bandwidth of VSWR≤2 is 2.407GHz-2.425GHz.
Figure 13 is present example antenna linear polarization in 2.415GHz, phi=0 ° of simulated gain curve.Maximum gain exists
At θ=0 °, maximum gain 7.79dB.
Figure 14 is present example antenna linear polarization in 2.415GHz, phi=90 ° of simulated gain curve.Maximum gain
At θ=0 °, maximum gain 7.79dB.
It is found that it can be according to actual demand, by adjusting the capacitance of varactor, energy in the present embodiment from simulation result
Enough realize the switching between the linear polarization and left and right hand circular polarization of antenna, and in linear polarization, left-handed and right-handed circular polarization pattern
Under have preferable polarization characteristic.
In said program, select coaxial feed or electromagnetic coupling feed that can equally realize that multipolarization reconstructs, it is only necessary to for not
Feed placement is adjusted with feeding classification；Meanwhile for different operating frequency, being amplified in proportion according to the size in embodiment
Or reduce, you can the multipolarization recombination function under working frequency needed for realizing.
Claims (4)
1. a kind of multipolarization reconfigurable antenna, which is characterized in that including dielectric substrate (13), metal ground plate (14), radiation patch
Piece (1), switch (2) and tuning minor matters (3)；Metal ground plate (14) is located at the lower surface of dielectric substrate (13)；Radiation patch
(1), (2) are switched and tune the upper surface that minor matters (3) are located at dielectric substrate (13)；Tuning minor matters (3) pass through switch (2) and rectangle
It is connected at the corner cut of the radiation patch (1) of corner cut.
2. multipolarization reconfigurable antenna according to claim 1, which is characterized in that the radiation patch (1) of rectangle corner cut
Corner cut is isosceles right triangle, arc-shaped or square.
3. multipolarization reconfigurable antenna according to claim 1, which is characterized in that tuning minor matters (3) are one section of transmission line.
4. multipolarization reconfigurable antenna according to claim 1, which is characterized in that the switch (2) is varactor；
By controlling the capacitance of varactor, the working condition of the antenna is controlled in linear polarization, left-hand circular polarization, dextrorotation
Switch between circular polarisation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810190101.8A CN108429001A (en) | 2018-03-08 | 2018-03-08 | A kind of multipolarization reconfigurable antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810190101.8A CN108429001A (en) | 2018-03-08 | 2018-03-08 | A kind of multipolarization reconfigurable antenna |
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| Publication Number | Publication Date |
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| CN108429001A true CN108429001A (en) | 2018-08-21 |
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| CN201810190101.8A Pending CN108429001A (en) | 2018-03-08 | 2018-03-08 | A kind of multipolarization reconfigurable antenna |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190685A (en) * | 2019-05-31 | 2019-08-30 | 四川大学 | A kind of broadband rectification circuit collected for electromagnetic energy |
| CN111816992A (en) * | 2020-06-03 | 2020-10-23 | 昆山睿翔讯通通信技术有限公司 | Method for realizing polarization reconfigurable antenna based on characteristic mode |
| CN112290228A (en) * | 2020-12-29 | 2021-01-29 | 成都信息工程大学 | Linear-circularly polarized reconfigurable antenna and lightning protection method |
| CN113471694A (en) * | 2021-07-05 | 2021-10-01 | 上海磐启微电子有限公司 | Ultra-wideband RFID antenna |
| CN113782972A (en) * | 2021-07-30 | 2021-12-10 | 北京邮电大学 | Multi-band reconfigurable microstrip antenna |
| CN113972486A (en) * | 2021-10-14 | 2022-01-25 | 南京理工大学 | Polarization reconfigurable self-oscillation active antenna |
| CN114792888A (en) * | 2022-05-11 | 2022-07-26 | 领翌技术(横琴)有限公司 | Antenna and electronic device |
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| CN204905443U (en) * | 2015-07-17 | 2015-12-23 | 深圳市华颖泰科电子技术有限公司 | Circular polarization reconfigurable microstrip antenna |
| CN107611617A (en) * | 2017-07-18 | 2018-01-19 | 电子科技大学 | A kind of electric tuning RECTIFYING ANTENNA based on substrate integration wave-guide |
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| JPS5829204A (en) * | 1981-08-17 | 1983-02-21 | Nippon Telegr & Teleph Corp <Ntt> | Microstrip antenna loaded with variable capacity active element |
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| MUHAMMAD ASAD RAHMAN, EISUKE NISHIYAMA, ICHIHIKO TOYODA: ""A Frequency Diversity Reconfigurable Antenna"", 《2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190685A (en) * | 2019-05-31 | 2019-08-30 | 四川大学 | A kind of broadband rectification circuit collected for electromagnetic energy |
| CN111816992A (en) * | 2020-06-03 | 2020-10-23 | 昆山睿翔讯通通信技术有限公司 | Method for realizing polarization reconfigurable antenna based on characteristic mode |
| CN111816992B (en) * | 2020-06-03 | 2022-12-06 | 昆山睿翔讯通通信技术有限公司 | Method for realizing polarization reconfigurable antenna based on characteristic mode |
| CN112290228A (en) * | 2020-12-29 | 2021-01-29 | 成都信息工程大学 | Linear-circularly polarized reconfigurable antenna and lightning protection method |
| CN112290228B (en) * | 2020-12-29 | 2021-03-16 | 成都信息工程大学 | Lightning protection method of line-circular polarization reconfigurable antenna |
| CN113471694A (en) * | 2021-07-05 | 2021-10-01 | 上海磐启微电子有限公司 | Ultra-wideband RFID antenna |
| CN113471694B (en) * | 2021-07-05 | 2022-11-25 | 上海磐启微电子有限公司 | Ultra-wideband RFID antenna |
| CN113782972A (en) * | 2021-07-30 | 2021-12-10 | 北京邮电大学 | Multi-band reconfigurable microstrip antenna |
| CN113972486A (en) * | 2021-10-14 | 2022-01-25 | 南京理工大学 | Polarization reconfigurable self-oscillation active antenna |
| CN114792888A (en) * | 2022-05-11 | 2022-07-26 | 领翌技术(横琴)有限公司 | Antenna and electronic device |
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Application publication date: 20180821 |