CN205723882U - A kind of microwave ferrite bimodulus circular polarisation Reciprocal phase shifter - Google Patents
A kind of microwave ferrite bimodulus circular polarisation Reciprocal phase shifter Download PDFInfo
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- CN205723882U CN205723882U CN201620623988.1U CN201620623988U CN205723882U CN 205723882 U CN205723882 U CN 205723882U CN 201620623988 U CN201620623988 U CN 201620623988U CN 205723882 U CN205723882 U CN 205723882U
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Abstract
This utility model relates to a kind of microwave ferrite bimodulus circular polarisation Reciprocal phase shifter, including surface be the ferrite bar of metallized film, excitation coil, to empty Radiative antenna elements；The excitation coil being wound on paper web is enclosed within ferrite bar, and empty Radiative antenna elements is bonded in the two ends, left and right of ferrite bar.In the both sides up and down of ferrite bar, and it is positioned at outside excitation coil and is respectively provided with one piece of yoke.Excitation coil of the present utility model is connected with drive circuit and controls the phase shifter, pulse longitudinal magnetization field is produced by excitation coil, change size or the direction in magnetic field, according to birefringence effect, ferritic pcrmeability changes, cause electromagnetic wave propagation constant to change, thus change the phase shift of microwave.Realize the noninertia electric scanning of phased-array radar wave beam.Can accomplish that left-hand circular polarization is launched, right-handed circular polarization receives, and this sends out left with radar and receives the consistent of right mechanism, substantially reduce the switch conversion time.
Description
Technical field
This utility model relates to a kind of phase shifter, particularly relates to a kind of microwave ferrite bimodulus circular polarisation Reciprocal phase shifter.
Background technology
Due to communication in modern age and the fast development of space technology, in succession occur in that carrier rocket, satellite and spacecraft etc.
Aerial target, in order to search for these realizations of goal, find, follow the tracks of, measure, identifying, each task such as guiding is it is necessary to have new
Radar system completes.Phased-array radar is exactly one of New System adapting to this task.It has beam scanning merit flexible, many
The advantages such as energy, long-range, multiple target and High Data Rate.To this end, phased-array radar is once there is causing the great attention of people.In phase
In control battle array Radar Technology, owing to the loss of ferrite phase shifter is little, tolerance power is high, and it is real to be widely used in phased-array radar
In the noninertia electric scanning of existing wave beam, so ferrite phase shifter is microwave unit crucial on inactive phased array antenna arrays of radar
One of device.Along with the development of inactive phased array radar, unit interval size is more and more less, and ferrite phase shifter is just proposed by this
The requirement of miniaturization.Traditional phase shifter typically uses horn diaphragm form, or dielectric loaded waveguide to empty radiating element
Form, takes up room relatively big, and unit interval is relatively big, and heavier mass.
Utility model content
For problems of the prior art, this utility model provides a kind of miniaturization and to empty radiating element one
Bodyization designs, can accomplish that left-hand circular polarization is launched, the microwave ferrite bimodulus circular polarisation Reciprocal phase shifter that right-handed circular polarization receives.
Technical scheme: provide a kind of microwave ferrite bimodulus circular polarisation reciprocity to solve problem above this utility model
Phase shifter, including ferrite bar, excitation coil, to empty Radiative antenna elements；The excitation coil being wound on paper web is enclosed within ferrum oxygen
On body rod, empty Radiative antenna elements is bonded in the two ends, left and right of ferrite bar.
In the both sides up and down of ferrite bar, and it is positioned at outside excitation coil and is respectively provided with one piece of yoke.
Described ferrite bar surface is metallized film.
Described ferrite bar is ferrite square rod or pole.
Excitation coil of the present utility model is connected with drive circuit and controls the phase shifter, produces pulse by excitation coil and indulges
To magnetizing field, changing size or the direction in magnetic field, according to birefringence effect, ferritic pcrmeability changes, and causes electromagnetism
The propagation constant of ripple changes, thus changes the phase shift of microwave.Realize the noninertia electric scanning of phased-array radar wave beam.Permissible
Accomplishing that left-hand circular polarization is launched, right-handed circular polarization receives, and this sends out left with radar and receives the consistent of right mechanism, substantially reduce out
Close the conversion time.
This phase shifter has carried out integrated design to empty radiating element, uses the form being loaded directly into Dielectric Radiator Antenna,
Both saved space, reduced unit interval, alleviated again quality, and made the overall performance electrical performance of radar and mobility obtain bigger
Improvement.
Accompanying drawing explanation
Fig. 1 is this utility model one microwave ferrite bimodulus circular polarisation Reciprocal phase shifter structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
As it is shown in figure 1, this utility model provides a kind of microwave ferrite bimodulus circular polarisation Reciprocal phase shifter, including ferrum oxygen
Body rod 2, excitation coil 1, to empty Radiative antenna elements 3；The excitation coil 1 being wound on paper web is enclosed within ferrite bar 2, to sky
Radiative antenna elements 3 is bonded in the two ends, left and right of ferrite bar 2.In the both sides up and down of ferrite bar 2, and it is positioned at excitation coil 1
It is respectively provided with outward one piece of yoke 4.
When phased array antenna is circularly polarised wave work, using this phase shifter is a kind of extraordinary scheme, this shifting
Phase device is made by a root surface metallized ferrite square rod or pole, and surface is metallized film, it is ensured that electromagnetic wave does not leaks,
Fast-magnetic field energy is allowed again respectively to add one piece of yoke through waveguide, the both sides of rod, constitute a pair closed magnetic circuit, to remain ferritic
Remanent magnetism, ferrite bar adds excitation coil, and the width of control coil current impulse or amplitude, to control ferrite remanent magnetism size, reach
To different phase-shift phases.This phase shifter is longitudinal magnetization, and positive and negative circularly polarised wave is rendered as normal mode, has different propagation constants β
±, with a heavy current pulse, make ferrite be in mximum residual magnetism state, assume at this point that positive circularly polarised wave is propagated along certain direction, it
Propagation constant β+=μ-κ, creates the fixed phase state of correspondenceCurrent impulse is inverted (variable-magnitude is little), at ferrite
In reverse residual magnetism state, although its propagation constant is for β+But value is μ+κ, corresponding phase stateTherefore to this direction of propagation,
Device creates differential phase shiftBecause low place κ is negative, phase shift shows as in advance, and false magnetic history described above is not
Become, only change the direction of propagation, owing to the direction of magnetization is contrary with the direction of propagation, differential phase shift shows as lagging, the phase shifter have non-mutually
Easily characteristic, fortunately for circularly polarised wave, the transmitting-receiving rotation direction of radar is different, i.e. sends out left and receives right or send out right and receive a left side, β±Mutually
Being exchanged, phase shift is that therefore circular polarization phase shifter is a reciprocal device, different from nonreciprocal device, during reception not in advance
Must set again.
The foregoing is only preferred embodiment of the present utility model, be not restricted to this utility model, for ability
For the technical staff in territory, this utility model can have various modifications and variations.All spirit of the present utility model and principle it
In, any modification, equivalent substitution and improvement etc. made, within should be included in right of the present utility model.
Claims (4)
1. a microwave ferrite bimodulus circular polarisation Reciprocal phase shifter, it is characterised in that: include ferrite bar (2), excitation coil
(1), to empty Radiative antenna elements (3)；The excitation coil (1) being wound on paper web is enclosed within ferrite bar (2), and sky is radiated sky
Line unit (3) is bonded in the two ends, left and right of ferrite bar (2).
A kind of microwave ferrite bimodulus circular polarisation Reciprocal phase shifter the most according to claim 1, it is characterised in that: at ferrum oxygen
The both sides up and down of body rod (2), and be positioned at outside excitation coil (1) and be respectively provided with one piece of yoke (4).
A kind of microwave ferrite bimodulus circular polarisation Reciprocal phase shifter the most according to claim 1 and 2, it is characterised in that: institute
Ferrite bar (2) surface stated is metallized film.
A kind of microwave ferrite bimodulus circular polarisation Reciprocal phase shifter the most according to claim 1 and 2, it is characterised in that: institute
The ferrite bar (2) stated is ferrite square rod or pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620623988.1U CN205723882U (en) | 2016-06-22 | 2016-06-22 | A kind of microwave ferrite bimodulus circular polarisation Reciprocal phase shifter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620623988.1U CN205723882U (en) | 2016-06-22 | 2016-06-22 | A kind of microwave ferrite bimodulus circular polarisation Reciprocal phase shifter |
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| Publication Number | Publication Date |
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| CN205723882U true CN205723882U (en) | 2016-11-23 |
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| CN201620623988.1U Active CN205723882U (en) | 2016-06-22 | 2016-06-22 | A kind of microwave ferrite bimodulus circular polarisation Reciprocal phase shifter |
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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 |
| CN110783667A (en) * | 2019-10-31 | 2020-02-11 | 西北核技术研究院 | Remanence ferrite phase shifter with flat plate structure |
| CN112234334A (en) * | 2020-08-31 | 2021-01-15 | 北京无线电测量研究所 | Preparation method and preparation system of unit bar for phase-controlled radar phase shifter |
-
2016
- 2016-06-22 CN CN201620623988.1U patent/CN205723882U/en active Active
Cited By (4)
| 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 |
| CN110783667A (en) * | 2019-10-31 | 2020-02-11 | 西北核技术研究院 | Remanence ferrite phase shifter with flat plate structure |
| CN112234334A (en) * | 2020-08-31 | 2021-01-15 | 北京无线电测量研究所 | Preparation method and preparation system of unit bar for phase-controlled radar phase shifter |
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