CN207651640U - A kind of microwave ferrite bimodulus polarization Reciprocal phase shifter - Google Patents
A kind of microwave ferrite bimodulus polarization Reciprocal phase shifter Download PDFInfo
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- CN207651640U CN207651640U CN201721876942.1U CN201721876942U CN207651640U CN 207651640 U CN207651640 U CN 207651640U CN 201721876942 U CN201721876942 U CN 201721876942U CN 207651640 U CN207651640 U CN 207651640U
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- circular polarizer
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Abstract
The utility model discloses a kind of microwave ferrite bimodulus polarization Reciprocal phase shifter, fixing type iron oxysome circular polarizer is arranged with agile ferrite circular polarizer at the both ends of circular polarization phase shifter；The agile ferrite circular polarizer includes excitation coil and trivial formula soft-magnetic yoke cartridge；Excitation coil is finally cascaded by bifilar and be wrapped on four cartridges of trivial formula soft-magnetic yoke cartridge in a manner of.Four magnetic poles of the fixing type iron oxysome circular polarizer are to be the poles SSNN or be the poles NNSS.The utility model by the fixing type iron oxysome circular polarizer of one end by being changed to agile ferrite circular polarizer, by changing sense of current, the circularly polarised wave of different rotation directions can be obtained, phase shifter is set to realize that vertical linear polarization input, output can be switched fast between vertical linear polarization and horizontal linear polarization.
Description
Technical field
The utility model is related to a kind of phase shifter more particularly to a kind of microwave ferrite bimodulus polarization Reciprocal phase shifters.
Background technology
Microwave Iron Oxide Elements have had been widely used in electronic technology fields such as microwave communication, radar, microwave energies.
Develop recently as Radar Technology such as phased arrays, to improving radar target polarization identification, polarization anti jamming ability, antiradiation are led
The measurement of the polarization matrix of bullet and radar target has very big demand.
Currently, using most, most common microwave ferrite dual-mode reciprocal phase shifter transmitting-receiving in radar system target observation
Wave electric field intensity is fixed polarity, for improving radar target polarization identification, polarization anti jamming ability, antiradiation missile and thunder
Polarization matrix up to target measures, and is both needed to use polarization microwave ferrite dual-mode reciprocal phase shifter.It can be changed for this purpose, exploitation is new
The ferrite Reciprocal phase shifter of output polarization form, it appears particularly important.
Utility model content
For problems of the prior art, the utility model provides a kind of agile that can quickly change magnetization polarity
Ferrite circular polarizer may be implemented the vertical linear polarization input of phase shifter, export between vertical linear polarization and horizontal linear polarization
It is switched fast, practicable microwave ferrite bimodulus polarization Reciprocal phase shifter is provided to develop polarization agile radar.
In order to solve problem above, the utility model uses following technical solution：A kind of microwave ferrite bimodulus pole-changing
Change Reciprocal phase shifter, it is characterised in that：Including circular polarization phase shifter, fixing type iron oxysome circular polarizer, agile ferrite entelechy
Change device；Fixing type iron oxysome circular polarizer is arranged with agile ferrite circular polarizer at the both ends of circular polarization phase shifter；Described
Agile ferrite circular polarizer includes excitation coil and trivial formula soft-magnetic yoke cartridge；Excitation coil is by bifilar and wound in a manner of
On four cartridges of trivial formula soft-magnetic yoke cartridge, and finally it is cascaded.
Four magnetic poles of the fixing type iron oxysome circular polarizer are to be the poles SSNN or be the poles NNSS.
When excitation coil leads to forward current, the polarity of agile ferrite circular polarizer is NNSS, if fixing type iron oxysome
Four pole polarities of circular polarizer are SSNN, then phase shifter output is vertical linear polarization；Following excitation coil starts logical negative sense
When electric current, the polarity of agile ferrite circular polarizer becomes SSNN, if four pole polarities of fixing type iron oxysome circular polarizer are
SSNN, then phase shifter output is horizontal linear polarization.Therefore, phase shifter can be made to realize vertical linear polarization input, exported vertical
It is switched fast between linear polarization and horizontal linear polarization.
Bimodulus ferrite phase shifter grows up on the basis of ferrite circular polarization phase shifter, and phase shift section passes
What is broadcast is circularly polarised wave, therefore need to respectively add a nonreciprocal circular polarizer at the both ends of circular polarization phase shifter, keeps input and output equal
It is line polarization wave.As described above, it is generally the case that the nonreciprocal circular polarizer at bimodulus ferrite phase shifter both ends is two fixations
Formula ferrite circular polarizer, one is NNSS (or SSNN), the other is SSNN (or NNSS) or two polarity are identical,
For NNSS (or SSNN), this Reciprocal phase shifter is widely used to phased array antenna system, but the phase shifter of this form
It is only capable of single accomplishing vertical linear polarization input, horizontal linear polarization or the output of vertical linear polarization.The utility model, by by one end
Fixing type iron oxysome circular polarizer be changed to agile ferrite circular polarizer, by change sense of current, can obtain not
With the circularly polarised wave of rotation direction, phase shifter is set to realize vertical linear polarization input, output can be between vertical linear polarization and horizontal linear polarization
It is switched fast.The phase shifter of this form can be applied in polarization agile radar, and to improving radar detection ability, target polarization is known
Not, the polarization matrix measurement for improving polarization anti jamming ability, antiradiation missile and radar target has very big use.
Description of the drawings
Fig. 1 is a kind of microwave ferrite bimodulus polarization Reciprocal phase shifter structural schematic diagram of the utility model.
Fig. 2 is agile ferrite circular polarizer in a kind of microwave ferrite bimodulus polarization Reciprocal phase shifter of the utility model
Construction profile schematic diagram.
Fig. 3 is agile ferrite circular polarizer in a kind of microwave ferrite bimodulus polarization Reciprocal phase shifter of the utility model
On coil load energizing current after output end electric field intensity distribution schematic diagram.
Specific implementation mode
Operation principle and attached drawing below in conjunction with microwave ferrite phase shifter make specific embodiment of the present utility model
It is further described.
As shown in Figure 1, 2, the utility model provides a kind of microwave ferrite bimodulus polarization Reciprocal phase shifter, including circle
Polarize phase shifter 1, fixing type iron oxysome circular polarizer 2, agile ferrite circular polarizer 3；Fixing type iron oxysome circular polarizer 2 with
Agile ferrite circular polarizer 3 is arranged at the both ends of circular polarization phase shifter 1.The agile ferrite circular polarizer 3 includes swashing
Encourage coil 4 and trivial formula soft-magnetic yoke cartridge 5；Excitation coil 4 is by bifilar and be wrapped in a manner of trivial formula soft-magnetic yoke cartridge 5
On four cartridges, and finally it is cascaded.
When excitation coil 4 leads to forward current, the polarity of agile ferrite circular polarizer 3 is NNSS, if fixing type iron oxygen
Four pole polarities of body circular polarizer 2 are SSNN, then phase shifter output is vertical linear polarization；Following excitation coil 4 starts to lead to
When negative current, the polarity of agile ferrite circular polarizer 3 becomes SSNN, if four magnetic poles of fixing type iron oxysome circular polarizer 2
Polarity is SSNN, then phase shifter output is horizontal linear polarization.
As shown in Figures 1 to 3, the concept of polarization transform matrix is introduced here.The matrix of nonreciprocal circular polarizer is represented by：
Or
The matrix of the Faraday rotator of phase shift section can be simplified shown as
Input terminal electric field intensity is represented byOutput end electric field intensity is represented by
We prove vertical linear polarization input, the reciprocity of vertical linear polarization output, it is assumed that fixing type iron oxysome is justified first
Four magnetic poles of polarizer are SSNN, then the polarity of agile ferrite circular polarizer is NNSS, from left to right transmission has：
If input terminal only has vertical component i.e. Ex1=0, Ey1≠ 0, above formula becomes
Obtain Ex2=0,If it can be seen that input terminal input vertically polarized wave,
Output wave is still vertically polarized wave, and phase-shift phase is kf。
In order to prove that the reciprocity property of phase shifter, consideration are transmitted from right to left, at this moment two circular polarizer sequences are exchanged, but
Due to the direction of propagation on the contrary, so the non-diagonal component in formula (1) needs reindexing, therefore the form of circular polarizer matrix is constant,
And Faraday rotation section although magnetic direction with the direction of propagation on the contrary, due to rotation direction also on the contrary, therefore matrix form it is also constant, this
Sample transform and formula (3) are identical
Enable Ex2=0, obtain Ex1=0,Polarized state is identical with phase shift, institute
To be reciprocity.
It we demonstrating above, device may be implemented vertical linear polarization and input, the reciprocity of vertical linear polarization output, below
We are proving the input of vertical linear polarization, the reciprocity of horizontal linear polarization output, it is assumed that fixed ferrite circular polarizer polarity
For SSNN, agile ferrite circular polarizer, we are by control circuit, and it is SSNN to make its polarity also, then signal is from left to right
It propagates, has：
If input terminal only has vertical component i.e. Ex1=0, Ey1≠ 0, above formula becomes
Ey2=0, it can be seen that, if inputting vertical linear polarization in input terminal
Wave, then output end is horizontal linear polarization wave, and phase-shift phase is kf+π。
Consider to propagate from right to left now, at this moment two nonreciprocal circular polarizer sequence of matrices are exchanged, but because propagation side
To on the contrary, then the non-diagonal component of matrix needs reindexing in (1), and Faraday rotation section is although magnetic direction and the direction of propagation
On the contrary, but due to rotation direction also on the contrary, therefore matrix form it is constant, in this way convert after must：
Input terminal only has horizontal component i.e. Ex1≠ 0, Ey1=0, above formula becomes
Obtain Ex2=0,Polarized state is vertical line polarization wave, for cross-polarized
For antenna array, 180 ° are differed from phase between the polarized wave for being emitted to reception, then the E in above formulax1Strain for-
Ex1, result calculated in this way is stillPhase-shift phase is also kf+ π, so phase shift is reciprocity.
The above descriptions are merely preferred embodiments of the present invention, is not restricted to the utility model, for ability
For the technical staff in domain, various modifications and changes may be made to the present invention.It is all the spirit and principles of the utility model it
Interior, any modification, equivalent replacement, improvement and so on should be included within the right of the utility model.
Claims (2)
1. a kind of microwave ferrite bimodulus polarization Reciprocal phase shifter, it is characterised in that：Including circular polarization phase shifter, fixing type iron
Oxysome circular polarizer, agile ferrite circular polarizer；Fixing type iron oxysome circular polarizer is arranged with agile ferrite circular polarizer
At the both ends of circular polarization phase shifter；The agile ferrite circular polarizer includes excitation coil and trivial formula soft-magnetic yoke cartridge；
Excitation coil is finally cascaded by bifilar and be wrapped on four cartridges of trivial formula soft-magnetic yoke cartridge in a manner of.
2. a kind of microwave ferrite bimodulus polarization Reciprocal phase shifter according to claim 1, it is characterised in that：Described
Four magnetic poles of fixing type iron oxysome circular polarizer are to be the poles SSNN or be the poles NNSS.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721876942.1U CN207651640U (en) | 2017-12-28 | 2017-12-28 | A kind of microwave ferrite bimodulus polarization Reciprocal phase shifter |
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| CN201721876942.1U CN207651640U (en) | 2017-12-28 | 2017-12-28 | A kind of microwave ferrite bimodulus polarization Reciprocal phase shifter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444834A (en) * | 2018-10-23 | 2019-03-08 | 北京无线电测量研究所 | A kind of circular polarizer assembly test method for reciprocal ferrite phase shifter |
| CN112216937A (en) * | 2020-12-02 | 2021-01-12 | 中国电子科技集团公司第九研究所 | Faraday rotary switch |
-
2017
- 2017-12-28 CN CN201721876942.1U patent/CN207651640U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444834A (en) * | 2018-10-23 | 2019-03-08 | 北京无线电测量研究所 | A kind of circular polarizer assembly test method for reciprocal ferrite phase shifter |
| CN109444834B (en) * | 2018-10-23 | 2020-10-20 | 北京无线电测量研究所 | Circular polarizer assembly test method for reciprocal ferrite phase shifter |
| CN112216937A (en) * | 2020-12-02 | 2021-01-12 | 中国电子科技集团公司第九研究所 | Faraday rotary switch |
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