CN105006607A - Ferrite phase shifter - Google Patents
Ferrite phase shifter Download PDFInfo
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- CN105006607A CN105006607A CN201510429948.3A CN201510429948A CN105006607A CN 105006607 A CN105006607 A CN 105006607A CN 201510429948 A CN201510429948 A CN 201510429948A CN 105006607 A CN105006607 A CN 105006607A
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- ferrite
- medium sheet
- dielectric slab
- dielectric
- phase shifter
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Abstract
The invention provides a ferrite phase shifter. The ferrite phase shifter comprises a first dielectric slab, a second dielectric slab, ferrite, and a waveguide, the first dielectric slab and the second dielectric slab are bonded and fixed via conductive adhesives, the surface of the second dielectric slab, adjacent to the first dielectric slab, is provided with a groove in a digging manner, nematic liquid crystal is injected into a cavity enclosed by the groove and the first dielectric slab, the external surface of the first dielectric slab and the external surface of the second dielectric slab are respectively provided with at least two layers of ferrite in sequence, excitation conducting wires are arranged in the ferrite in a penetrating manner, the first dielectric slab, the second dielectric slab, and the ferrite are all positioned in an inner cavity of the waveguide, two ends of the waveguide are respectively provided with a first matching dielectric and a second matching dielectric, two ends of the first dielectric slab and the second dielectric slab are contacted with the first matching dielectrics, two ends of the ferrite are contacted with the second matching dielectrics, and the dielectric constant of the first matching dielectrics is greater than the dielectric constant of the second matching dielectrics. According to the ferrite phase shifter, phase shift in the ultra-wide band microwave frequency band can be realized.
Description
Technical field
The present invention relates to microwave device technology field, particularly relate to a kind of ferrite phase shifter.
Background technology
Phase shifter is a kind of device regulated the phase place of ripple, all has a wide range of applications at radar, missile attitude control, accelerator, communication and instrument field.Current ferrite device is widely used in various radar system, and wherein waveguide class Microwave Iron Oxide Elements occupy half of the country.Inactive phased array radar and submatrix Connectors for Active Phased Array Radar system all need to use a large amount of this kind of devices.Waveguide class ferrite device can realize the control of amplitude or phase place in antenna feeder to the microwave signal passed through, but must be realized mating of ferrite waveguide and empty waveguide by certain medium adaptation.Along with the development of Radar Technology, wideband operation has become the trend of development, and waveguide class Microwave Iron Oxide Elements consistent since the ordinary matches mode that adopts become the bottleneck of influential system bandwidth gradually, cause the problem existed in quality factor, tuning ratio, tuned speed, the linearity etc. more or less.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of ferrite phase shifter, can realize phase shift under ultra-wideband microwave frequency range.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of ferrite phase shifter, comprise first medium sheet, second medium sheet, ferrite and waveguide, described first medium sheet and described second medium sheet are adhesively fixed by conducting resinl, the surface of the adjacent described first medium sheet of described second medium sheet digs fluted, nematic crystal is injected with in the cavity that described groove and described first medium sheet surround, the outer surface of described first medium sheet and the outer surface of described second medium sheet are respectively equipped with at least two-layer ferrite successively, excitation wire is equipped with in described ferrite, described first medium sheet, second medium sheet, ferrite is all arranged in the inner chamber of described waveguide, the two ends of described waveguide are respectively equipped with the first matched media and the second matched media, the two ends of described first medium sheet and described second medium sheet contact with described first matched media, described ferritic two ends contact with described second matched media, wherein, the dielectric constant of described first matched media is greater than the dielectric constant of described second matched media.
Preferably, described first medium sheet and described second medium sheet are potsherd.
Preferably, the material of described waveguide is copper.
Be different from the situation of prior art, the invention has the beneficial effects as follows: two secondary coils are set in power transformer, two secondary coils couple with relay and manual end respectively, for relay and manual control are held independently-powered, thus can prevent the current potential of ferrite phase shifter manual control end from becoming forceful electric power, in addition, owing to have employed relay and manual end connects with identical rectification circuit, the structure of circuit can be simplified, reduce power consumption.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention phase shifter.
Fig. 2 is the first medium sheet of embodiment of the present invention phase shifter and the structural representation of second medium sheet.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In the lump see Fig. 1 and Fig. 2, the ferrite phase shifter of the present embodiment comprises first medium sheet 1, second medium sheet 2, ferrite 3 and waveguide 4.
Wherein, first medium sheet 1 and second medium sheet 2 are adhesively fixed by conducting resinl, the surface of second medium sheet 2 adjacent first medium sheet 1 digs fluted 21, nematic crystal is injected with in the cavity that groove 21 and first medium sheet 1 surround, the outer surface of first medium sheet 1 and the outer surface of second medium sheet 2 are respectively equipped with at least two-layer ferrite 3 successively, excitation wire is equipped with in ferrite 3, first medium sheet 1, second medium sheet 2, ferrite 3 is all arranged in the inner chamber of waveguide 4, the two ends of waveguide 4 are respectively equipped with the first matched media 5 and the second matched media 6, the two ends of first medium sheet 1 and second medium sheet 2 contact with the first matched media 5, the two ends of ferrite 3 contact with the second matched media 6, wherein, the dielectric constant of the first matched media 5 is greater than the dielectric constant of the second matched media 6.
During ferrite phase shifter work, excitation wire connects drive circuit, and when an electric current passes through it, produce cross magnetization field, the magnetic line of force forms loop in ferrite 3.When radio-frequency field is by phase shift section, owing to there being the existence of positive and negative circularly polarised wave in ferrite 3, the magnetic permeability of positive and negative circularly polarised wave is different, thus produces differential phase shift.Ferrite phase shifter works under locking-type state, and it can be operated in the arbitrary state between positive and negative magnetization state.Operating conditions controls to have been come by drive circuit.Meanwhile, owing to have employed nematic crystal as electrooptical material, utilize nematic crystal when not biasing and biasing, the dielectric anisotropy change of generation can realize the object of phase shift.
In the present embodiment, first medium sheet 1 and second medium sheet 2 are potsherd, and the material of waveguide 4 is copper.
By the way, the ferrite phase shifter of the embodiment of the present invention arranges two secondary coils in power transformer, two secondary coils couple with relay and manual end respectively, for relay and manual control are held independently-powered, thus can prevent the current potential of ferrite phase shifter manual control end from becoming forceful electric power, in addition, owing to have employed relay and manual end connects with identical rectification circuit, the structure of circuit can be simplified, reduce power consumption.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. a ferrite phase shifter, it is characterized in that, comprise first medium sheet, second medium sheet, ferrite and waveguide, described first medium sheet and described second medium sheet are adhesively fixed by conducting resinl, the surface of the adjacent described first medium sheet of described second medium sheet digs fluted, nematic crystal is injected with in the cavity that described groove and described first medium sheet surround, the outer surface of described first medium sheet and the outer surface of described second medium sheet are respectively equipped with at least two-layer ferrite successively, excitation wire is equipped with in described ferrite, described first medium sheet, second medium sheet, ferrite is all arranged in the inner chamber of described waveguide, the two ends of described waveguide are respectively equipped with the first matched media and the second matched media, the two ends of described first medium sheet and described second medium sheet contact with described first matched media, described ferritic two ends contact with described second matched media, wherein, the dielectric constant of described first matched media is greater than the dielectric constant of described second matched media.
2. ferrite phase shifter according to claim 1, is characterized in that, described first medium sheet and described second medium sheet are potsherd.
3. ferrite phase shifter according to claim 1, is characterized in that, the material of described waveguide is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510429948.3A CN105006607A (en) | 2015-07-21 | 2015-07-21 | Ferrite phase shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510429948.3A CN105006607A (en) | 2015-07-21 | 2015-07-21 | Ferrite phase shifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105006607A true CN105006607A (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510429948.3A Pending CN105006607A (en) | 2015-07-21 | 2015-07-21 | Ferrite phase shifter |
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| CN (1) | CN105006607A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329036A (en) * | 2016-08-29 | 2017-01-11 | 电子科技大学 | LTCC-based microstrip line ferrite phase shifter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5451567A (en) * | 1994-03-30 | 1995-09-19 | Das; Satyendranath | High power ferroelectric RF phase shifter |
| WO2011036243A1 (en) * | 2009-09-25 | 2011-03-31 | Technische Universität Darmstadt | Phase shifter for high-frequency signals |
| US20140022029A1 (en) * | 2011-11-14 | 2014-01-23 | Anatoliy Volodymyrovych GLUSHCHENKO | Nanoparticle-enhanced liquid crystal radio frequency phase shifter |
| CN104393376A (en) * | 2014-11-14 | 2015-03-04 | 南京国睿微波器件有限公司 | Ultra-wide-band double-ring high-power ferrite phase shifter |
| CN104466307A (en) * | 2014-11-24 | 2015-03-25 | 电子科技大学 | Phase shifter |
-
2015
- 2015-07-21 CN CN201510429948.3A patent/CN105006607A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5451567A (en) * | 1994-03-30 | 1995-09-19 | Das; Satyendranath | High power ferroelectric RF phase shifter |
| WO2011036243A1 (en) * | 2009-09-25 | 2011-03-31 | Technische Universität Darmstadt | Phase shifter for high-frequency signals |
| US20140022029A1 (en) * | 2011-11-14 | 2014-01-23 | Anatoliy Volodymyrovych GLUSHCHENKO | Nanoparticle-enhanced liquid crystal radio frequency phase shifter |
| CN104393376A (en) * | 2014-11-14 | 2015-03-04 | 南京国睿微波器件有限公司 | Ultra-wide-band double-ring high-power ferrite phase shifter |
| CN104466307A (en) * | 2014-11-24 | 2015-03-25 | 电子科技大学 | Phase shifter |
Non-Patent Citations (2)
| Title |
|---|
| DI JIANG等: "Compact phase shifter based on highly anisotropic liquid crystals for microwave frequency", 《ELECTRONIC LETTERS》 * |
| FREDERIC DUBOIS等: "Large Microwave Birefringence Liquid-CrystalCharacterization for Phase-Shifter Applications", 《JAPANESE JOURNAL OF APPLIED PHYSICS》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329036A (en) * | 2016-08-29 | 2017-01-11 | 电子科技大学 | LTCC-based microstrip line ferrite phase shifter |
| CN106329036B (en) * | 2016-08-29 | 2019-06-21 | 电子科技大学 | A kind of microstrip line ferrite phase shifter based on LTCC |
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Application publication date: 20151028 |