CN106450799A - Anti-interference dual-polarized array antenna - Google Patents
Anti-interference dual-polarized array antenna Download PDFInfo
- Publication number
- CN106450799A CN106450799A CN201610979450.9A CN201610979450A CN106450799A CN 106450799 A CN106450799 A CN 106450799A CN 201610979450 A CN201610979450 A CN 201610979450A CN 106450799 A CN106450799 A CN 106450799A
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- polarized
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- polarization
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
-
- 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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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention provides an anti-interference dual-polarized array antenna which comprises multiple dual-polarized array antenna units. Each dual-polarized array antenna unit adopts a dual-polarized patch antenna, wherein the relation between a connecting line of a horizontally polarized feed point and a grounding short-circuit point and a connecting line of a vertically polarized feed point and a grounding short-circuit point is a vertical relation; each grounding short-circuit point is located at the physical center point of a corresponding patch and directly connected with the floor on the back face of the corresponding antenna through a shorting pin; horizontally polarized signals and vertically polarized signals are sent to horizontally polarized signal processing circuits and vertically polarized signal processing circuits which are arranged on the back faces of the antennas through coaxial transmission lines respectively; horizontally polarized feed points, vertically polarized feed points and grounding short-circuit points completely coincide after all the dual-polarized array antenna units are subjected to translation. The anti-interference dual-polarized array antenna has one more degree of freedom than that of performing anti-interference processing through a single circularly polarized signal, and therefore more numbers of interference can be resisted.
Description
Technical field
The invention belongs to the anti-interference field of satellite navigation.
Background technology
With the maturation of anti-interference antenna of satellite navigation technology, more and more extensive using platform coverage.Therefore, some
Specific use platform is for the requirement also more and more higher of product miniaturization.But, one side antenna element Miniaturization Design and work
Journey debugging difficulty is big, is unfavorable for producing in batches；On the other hand, because the element antenna spacing of small size array is little, element antenna
Between coupling influence serious, leading to antenna performance to deteriorate, thus affecting array antenna interference free performance, limiting anti-interference antenna
The use of product.
Content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of anti-interference double polarization array antenna, using antenna pole
Change characteristic, micro-strip circular polarized antenna is carried out polarization decomposing, obtain two-route wire polarized signal, i.e. horizontal polarization signals and vertical pole
Change signal.The present invention carries out anti-interference process using the linear polarization signal of two-way independence, is resisted than with single circularly polarized signal
Many one of the degree of freedom that interference is processed, such that it is able to resist the interference of more numbers.
The technical solution adopted for the present invention to solve the technical problems is：Including several dual polarized antenna units；Each
Dual polarized antenna unit adopts dual-polarized patch antenna, and the line of horizontal polarization distributing point and ground short circuit point, with vertical polarization
The line of distributing point and ground short circuit point is vertical relation；Ground short circuit point is located at physical centre's point of paster, with the antenna back side
Floor Shorted post be joined directly together；Horizontal polarization signals and vertical polarization signal coaxial transmission line give the antenna back side respectively
Horizontal polarization signals process circuit and vertical polarization signal processing circuit；Level pole after the translation of each dual polarized antenna unit
Change distributing point, vertical polarization distributing point and ground short circuit point to be completely superposed.
Horizontal polarization and vertical polarization signal that each polarized antenna elements receives, be respectively fed to respective amplification, filtering,
Down conversion module, thus obtain analog if signal；Each road analog if signal is carried out with A/D sampling, and to each after sampling
Railway digital signal carries out the anti-interference process of space-time joint, obtains a road anti-jamming signal output.
The invention has the beneficial effects as follows：In the case that anti-interference number M-1 ensureing array is constant, conventional anti-jamming array
Array antenna needs M antenna element, and polarization array antenna only needs M/2 (numerical value rounds up) antenna element, as such, it is possible to
Greatly reduce antenna array size；In the case of ensureing that antenna element number M is constant, conventional arrays antenna is opposable dry
Disturbing number is M-1, and the interference number that polarization array antenna can resist can bring up to 2M-1.The present invention is simple to operate,
It is easy to Project Realization.
Dual polarized antenna receives horizontal polarization signals and vertical polarization signal simultaneously, meets cross polarization between two paths of signals
Isolation, has non-correlation between two paths of signals, can be considered as two-channel independent and carry out anti-interference process, thus each sky
Line unit can additionally increase an anti-interference process degree of freedom.Dual polarized antenna unit is formed after array, so that anti-
The number that interference signal processes branch road doubles, thus improve the jamproof degree of freedom of array antenna, more therefore, it is possible to resist
The interference of number.
Brief description
Fig. 1 is the dual polarized antenna unit top view of the present invention；
Fig. 2 is the dual polarized antenna unit three-dimensional view of the present invention；
Fig. 3 is the arrangement schematic diagram of the polarization array antenna of the present invention；
Fig. 4 is principle prototype schematic diagram in kind；
In figure, 1- horizontal polarization distributing point, 2- vertical polarization distributing point, 3- ground short circuit point, 4- antenna array, 5- front
Fixed hole position.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples, and the present invention includes but are not limited to following enforcements
Example.
The present invention adopts the dual polarized antenna unit of micro-strip medium designs, and top view is as shown in figure 1, three-dimensional view such as Fig. 2
Shown.Horizontal polarization distributing point 1 and the line of ground short circuit point 3, the line with vertical polarization distributing point 2 and ground short circuit point 3
For vertical relation.Ground short circuit point is located at physical centre's point of antenna patch, the floor direct phase of Shorted post with the antenna back side
Even；Horizontal polarization signals and vertical polarization signal coaxial transmission line, signal are given respectively antenna element back side horizontal polarization
Signal processing circuit and vertical polarization signal processing circuit.
The arrangement form of polarization array antenna needs to meet following requirement：Each antenna is carried out translation, does not carry out
Rotation process, may finally make the ground short circuit point of all antenna elements and polarization distributing point be completely superposed.Polarized array sky
The arrangement schematic diagram of line is as shown in Figure 3.Antenna BCDEF is only passed through translation, is not rotated, it is possible to achieve with antenna
A short dot and polarization distributing point are completely superposed.
Horizontal polarization and vertical polarization signal that each polarized antenna elements receives, be respectively fed to respective amplification, filtering,
Down conversion module, thus obtain analog if signal.Each road analog if signal is carried out with A/D sampling, and to each after sampling
Railway digital signal carries out the anti-interference process of space-time joint, obtains a road anti-jamming signal output.
The present invention is applied to GPS, BDS and the polarization anti jamming of GLONASS satellite navigation system is processed.With two unit B D2-
B3 frequency anti-interference antenna illustrates the specific embodiment of the present invention as a example resisting three broadband pressing type interference.
The dielectric constant of the micro-strip dielectric patch material that dual polarized antenna unit design is selected is 16, and loss angle tangent is
0.02.The size of the antenna element after design is 35mm*35mm, and the thickness of antenna medium is 4mm.Horizontal polarization distributing point and short
The line of waypoint, the angle with vertical polarization distributing point and the line of short dot is 90 °.The mid frequency resonance of antenna exists
1268.52MHz, impedance bandwidth is more than 20MHz, and the polarization isolation of two-way orthogonally polarized signal is more than 30dB.Antenna element
Ground short circuit point and the direct-connected welding of Shorted post of back side floor, at the antenna back side, therefore, two-way polarizes for radio frequency amplifying circuit design
Distributing point coaxial transmission line guides to the input port of the radio frequency amplifier at the back side.
The two BD2 units that are designed with of antenna array carry out organizing battle array, and principle prototype in kind is as shown in figure 4, in figure label 4
For antenna array, label 5 is front fixed hole position.Between two units, arrangement mode follows above-mentioned arrangement requirement, an antenna
Only pass through translation, can be completely superposed with another antenna.In order to holding unit center distance is maximum, two antennas are taken
Diagonally arranging in angle, does not take edge-to-edge to arrange.
BD2 polarized radio frequency signals are amplified, filter, down coversion, AD sample and anti-interference process.Signal amplifier
Overall gain elect 40 ± 1dB as, bandpass flatness be less than ± 1dB, filter passband broadband 20MHz, Out-of-band rejection degree is more than
45dB, down-converted adopts single-conversion technology, and local frequency selects 1222MHz, obtains the intermediate-freuqncy signal of 46.52MHz.In
16 A/D changers are selected in the A/D sampling of frequency signal, and signal sampling clock is 62MHz.Digital signal after sampling is resisted
Interference is processed, and Anti-interference algorithm adopts 16 rank space-time joint Anti-interference algorithm of complex signal, completes AF panel.
Finally, two array element BD2 double polarization array antennas are carried out resisting with three disturbed tests, two element antenna antagonism of checking
The actual measurement feasibility of three interference.Under open-air atmosphere, test proves, the present invention can be effective against three broadband pressing types and do
Disturb.So far, anti-interference double polarization array antenna design completes.
Claims (2)
1. a kind of anti-interference double polarization array antenna, including several dual polarized antenna units it is characterised in that：Each dual polarization
Antenna element adopts dual-polarized patch antenna, and the line of horizontal polarization distributing point and ground short circuit point, with vertical polarization distributing point
Line with ground short circuit point is vertical relation；Ground short circuit point is located at physical centre's point of paster, the floor with the antenna back side
It is joined directly together with Shorted post；Horizontal polarization signals and vertical polarization signal coaxial transmission line give the level at the antenna back side respectively
Polarized signal process circuit and vertical polarization signal processing circuit；Horizontal polarization feed after the translation of each dual polarized antenna unit
Point, vertical polarization distributing point and ground short circuit point are completely superposed.
2. anti-interference double polarization array antenna according to claim 1 it is characterised in that：Each polarized antenna elements receives
Horizontal polarization and vertical polarization signal, be respectively fed to respective amplification, filtering, down conversion module, thus obtaining analog intermediate frequency
Signal；Each road analog if signal is carried out with A/D sampling, and each railway digital signal after sampling is carried out with the anti-dry of space-time joint
Disturb process, obtain a road anti-jamming signal output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610979450.9A CN106450799A (en) | 2016-11-08 | 2016-11-08 | Anti-interference dual-polarized array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610979450.9A CN106450799A (en) | 2016-11-08 | 2016-11-08 | Anti-interference dual-polarized array antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106450799A true CN106450799A (en) | 2017-02-22 |
Family
ID=58207651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610979450.9A Pending CN106450799A (en) | 2016-11-08 | 2016-11-08 | Anti-interference dual-polarized array antenna |
Country Status (1)
| Country | Link |
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| CN (1) | CN106450799A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860994A (en) * | 2019-01-21 | 2019-06-07 | 中国人民解放军陆军工程大学 | Planar microstrip patch antenna with broadband end-fire circular polarization characteristic |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117969A (en) * | 2011-03-11 | 2011-07-06 | 深圳市华信天线技术有限公司 | Array antenna |
| CN104882681A (en) * | 2015-04-29 | 2015-09-02 | 深圳市华信天线技术有限公司 | Circularly polarized antenna and manufacture method thereof |
| CN105281045A (en) * | 2014-07-24 | 2016-01-27 | 富士康(昆山)电脑接插件有限公司 | Microstrip array antenna |
-
2016
- 2016-11-08 CN CN201610979450.9A patent/CN106450799A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117969A (en) * | 2011-03-11 | 2011-07-06 | 深圳市华信天线技术有限公司 | Array antenna |
| CN105281045A (en) * | 2014-07-24 | 2016-01-27 | 富士康(昆山)电脑接插件有限公司 | Microstrip array antenna |
| CN104882681A (en) * | 2015-04-29 | 2015-09-02 | 深圳市华信天线技术有限公司 | Circularly polarized antenna and manufacture method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860994A (en) * | 2019-01-21 | 2019-06-07 | 中国人民解放军陆军工程大学 | Planar microstrip patch antenna with broadband end-fire circular polarization characteristic |
| CN109860994B (en) * | 2019-01-21 | 2020-10-20 | 中国人民解放军陆军工程大学 | Planar microstrip patch antenna with broadband end-fire circular polarization characteristic |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
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| WD01 | Invention patent application deemed withdrawn after publication |