CN101894998B - Ultra-thin three-port waveguide junction circulator - Google Patents
Ultra-thin three-port waveguide junction circulator Download PDFInfo
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- CN101894998B CN101894998B CN201010230658.3A CN201010230658A CN101894998B CN 101894998 B CN101894998 B CN 101894998B CN 201010230658 A CN201010230658 A CN 201010230658A CN 101894998 B CN101894998 B CN 101894998B
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- waveguide
- junction circulator
- waveguide junction
- permanent magnet
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Abstract
The invention discloses an ultra-thin three-port waveguide junction circulator which is characterized in that a pair of bias onstant magnets for providing a steady bias magnetic field is arranged in a waveguide cavity so that the bias constant magnets and a Y-shaped matching step in the waveguide cavity form a whole; and then, regularly triangular ferrite pieces are directly placed on the bias constant magnets to form an internally-magnetic waveguide junction circulator, the mutual distance is reduced, and simultaneously, the thickness and the size of the bias constant magnets are reduced to keep an appropriate bias field so that the thickness of the waveguide junction circulator is close to the appearance size of a standard waveguide tube along the b direction, and the height of the waveguide junction circulator is one third of the common three-centimeter three-port waveguide junction circulator, therefore, the ultra-thin three-port waveguide junction circulator is suitable for being compactly arranged and installed on an array antenna. The circulator can obtain higher finished product ratio as long as the size of the constant magnetic field and the parameters and the size of a ferrite sample are strictly controlled, and is basically unnecessary to do other debugging, except for replacing a ferrite triangular piece.
Description
Technical field
The invention belongs to waveguide devices field, definite say a kind of ultra-thin three-port waveguide junction circulator, for there being the microwave transmission system of special technical requirement.
Background technology
The transverse profile of existing general three centimetres of Waveguide Junction Circulators is generally more than or equal to standard adpting flange size, and profile as shown in Figure 1.This circulator can meet the demand of most microwave systems.But for some such as Wa-veguide Slot-Array Antennas system or other special transmission system, require in one direction (as duct height direction) only use with the approaching width of standard waveguide b size on settle a waveguide junction circulator, and become array by a plurality of circulator close-packed arrays, use common waveguide junction circulator obviously can not realize.Need to design the specification requirement that a kind of ultra-thin waveguide junction circulator meets this class microwave transmission system.
Content of the present invention
The technical problem to be solved in the present invention is the volume defect that overcomes circulator in prior art, and a kind of waveguide junction circulator of ultra-thin size is provided, thereby solves the array problem of three-port waveguide junction circulator in antenna array.
The scheme that the present invention solves the problems of the technologies described above realizes by design " internal magnetization " waveguide junction circulator.The special feature of so-called " internal magnetization " three-port waveguide junction circulator is a confrontational structure, to provide the biasing permanent magnet of permanent steady bias magnetic field to move in waveguide cavity outward by waveguide cavity, with the Y shape quarter-wave impedance matching Step-edge Junction integrator in waveguide cavity, again equilateral triangle ferrite sheet is directly placed on biasing permanent magnet, forms " internal magnetization " waveguide junction circulator.Consider that the place of inlaying biasing permanent magnet is the more concentrated place of electromagnetic field, at biasing permanent magnet electroplate, to improve its electric conductivity and to reduce lossy microwave.The electric discharge sparking problem of simultaneously considering edge, gap, has proposed special requirement to biasing permanent magnet and the tolerance fit of inlaying circular groove during design.Biasing permanent magnet is the stable SmCo permanent magnetic material of temperature performance, and it is of a size of
surface field intensity 750G
s, magnet surface adopts silver-plated rear conservation treatment.
" internal magnetization " design of waveguide junction does not change the basic functional principle of circulator, still under the acting in conjunction based on in DC bias magnetic field and microwave magnetic field, the tensor permeability that gyromagnetic material produces and the nonreciprocal transmission characteristic producing while being loaded on waveguide.
Built-in due to by a pair of biasing permanent magnet, has reduced mutual distance, and the internal field in gyromagnetic material is increased greatly, in order to keep suitable bias-field, thickness and the volume of biasing permanent magnet is significantly reduced accordingly.Certainly, this design is not simply from external, to become built-inly, and biasing permanent magnet is no longer the single role that D.C. magnetic field is only provided, and also as the part of coupling step, it must electroplate, to possess good electric conductivity.By built-in design, the be near the mark overall dimension of waveguide b direction of the thickness of this waveguide junction circulator, is highly 1/3rd of common three centimetre of three end waveguide junction circulator, is suitable for being compactly arranged of installation on array antenna.
The present invention is more adapted to the lower magnetic field of biasing, can bear the microwave peak power below 20KW, and due in common X-band phased array antenna, the power that single circulator bears can not surpass 10KW.Therefore, the present invention can not limit its use compared with low because bearing microwave peak power.
In waveguide junction of the present invention, the structural parameters of Y shape quarter-wave impedance matching step are determined by the microwave designing of circulator, operating frequency and the bandwidth of operation by circulator determines, the brachium 15mm of San Ge branch of step, the wide 11mm of arm, height 1.6mm, be 120 ° of Y shape symmetrical structures, with groove and the whole processing of waveguide cover of wave-guide cavity wave.
Equilateral triangle ferrite sheet of the present invention is saturation magnetization 4 π M
svalue is 1600G
slithium titanium series material, its leg-of-mutton length of side is 10.5 ± 0.1, thickness 3.0mm.
The present invention compared with prior art has more advantage:
1. the design of " internal magnetization " formula by waveguide junction, can make the high compression of circulator to 1/3rd of traditional design, has realized ultra-thin, ultralightly, is convenient to install in array antenna.Its various performance parameters and traditional circulator are basically identical.
2. due to waveguide junction, realized ultra-thin, ultralightly, saved waveguide case material and permanent magnetic material, reduced production cost.
3. met the especially special instructions for use of slotted waveguide array antenna array of array antenna.
Accompanying drawing explanation
The common three centimetres of waveguide junction circulator profile pictures of Fig. 1
The volume ratio of the ultra-thin circulator of Fig. 2 and common circulator is compared with picture
The schematic diagram of Fig. 3 (a) biasing permanent magnet of the present invention
Fig. 3 (b) triangle ferrite sheet schematic diagram
Fig. 4 the present invention three end knot chamber lid and rigging position schematic diagrames
The schematic diagram of Fig. 5 the present invention three end knot chamber grooves and rigging position
The profile schematic diagram of Fig. 6 internal magnetization three end junction circulators of the present invention
Embodiment
In conjunction with above-mentioned accompanying drawing and preferred embodiment, overall structure of the present invention and implementation process are done to concrete detailed description in detail.The present invention is designed to " internal magnetization " waveguide junction circulator by three centimetres of three-port waveguide junction circulators.
As shown in Figure 4 and Figure 5, the present invention adopts the processing respectively of Cao He chamber, chamber lid to three centimetres of three-port waveguide junction circulators, according to working band and microwave engineering theory, designs respectively the Y shape quarter-wave impedance matching step in three Cao Neihe chamber, end waveguide junction chamber lids with experience.Y shape step 2 is the brachium 15mm of 120 ° of symmetrical ，San Ge branches, the wide 11mm of arm, and the center of Y shape step 2 is circular groove, with waveguide cavity groove and the integrated processing of waveguide cover.
Fig. 3 (a) is the schematic diagram of biasing permanent magnet, and biasing permanent magnet is wafer architecture.Fig. 3 (b) is triangle ferrite sheet schematic diagram.The present invention is embedded in respectively " Y " shape in waveguide cavity groove and waveguide cover by two biasing permanent magnets 1 and mates in the circular groove close with its size of step center.Again equilateral triangle ferrite sheet 3 is directly placed on biasing permanent magnet 1, forms " internal magnetization " waveguide junction circulator (seeing Fig. 4 and Fig. 5).Biasing permanent magnet 1 is the stable SmCo permanent magnetic material of temperature performance, and it is of a size of
surface field intensity 750G
s, magnet surface adopts silver-plated rear conservation treatment.The groove of three port waveguide cavity bored the center circular groove of inlaying magnet steel with covering before surface treatment, and it is of a size of
the permanent magnet that makes to setover meets the demands with the tolerance fit of inlaying circular groove.Then with conducting resinl, two contact-making surfaces are bonding, the outer surface of circular biasing permanent magnet is flushed with " Y " shape coupling step surface.The optimum size of noting Ferrite Material that different manufacturers produce and permanent magnetic material is slightly different, should revise in time, also can pass through high frequency emulation technology, further Optimal Parameters.
The present invention calculates magnetostatic parameter and the equilateral triangle size of required Ferrite Material according to ferrite device theory, equilateral triangle ferrite sheet is saturation magnetization 4 π M
svalue is 1600G
slithium titanium series material, its leg-of-mutton length of side is 10.5 ± 0.1, thickness 3.0mm.Triangular plate size should be the optimum size of selecting through repetition test under determined permanent magnetic, to guarantee and to have a higher rate of finished products.
During assembling, measure each maximum field to the polarity of magnetic sheet and inside cavity, according to the consistent magnetic direction of determining, place, and guarantee that internal field is at 20G
sfluctuation range within, at biasing permanent magnet and wave-guide cavity wave joint, be coated with skim conducting resinl, especially in the bonding crack of surrounding, to fill up with conducting resinl, outerplanar will be cleaned out, after solidifying, get final product assembling and setting, notice that magnetic direction must be correct consistent, can not entanglement, otherwise cavity will be scrapped, because cannot change after bonding.
The ferrite triangular plate of getting ready 3 one sides are coated to a little 705 silicon rubber, insert cavity center, leg-of-mutton three the top of the horns are aimed at respectively on the axis of the San Ge branch on Y shape step, and with the dead in line of Waveguide branching, the at this moment center superposition of triangle and Y shape step.Waveguide cavity and waveguide cover after adhesive curing, pin location, screw fastening is linked and packed into three end junction circulators shown in Fig. 6.The measurement performance parameter of can reaching the standard grade, the length of side that if desired can diabolo is slightly finely tuned, and its adjustment amount is 0.2mm.The waveguide cavity groove of three end knot waveguide junction circulators and chamber are covered on inner-cavity structure and are become the "T"-shaped external-connected port of 90 ° by 120 ° of Y shape symmetrical structure rounding ofves, its "T"-shaped external-connected port is connected with system by the flat flange of overall dimension 17 * 54mm, and waveguide mouth is still BJ-100 standard size 22.86 * 10.16mm.
Fig. 2 is that the overall volume of three centimetres of three-port waveguide junction circulators of internal magnetization of the present invention and common waveguide junction circulator is relatively illustrated, from picture, can know " internal magnetization " formula design of seeing by waveguide junction, can make the high compression of circulator to 1/3rd of traditional design, realize ultra-thin, ultralight.Waveguide junction circulator of the present invention has met installation requirement in array antenna.
Claims (4)
1. a ultra-thin three-port waveguide junction circulator, it is characterized in that: within the biasing permanent magnet (1) of a pair of electroplate is placed in to the coupling of " Y " shape in the wave-guide cavity wave step center circular groove close with its size, the permanent magnet (1) that makes to setover mates step (2) with " Y " shape in waveguide cavity and becomes one; Described " Y " shape coupling step (2) is separately positioned in the lid of Cao He chamber, chamber, covers integrated processing with waveguide cavity groove and chamber; " Y " shape coupling step is 120 ° of symmetrical ，Qi Sange brachium 15mm of branch, the wide 11mm of arm, height 1.6mm; At coupling step center, open a circular groove, in order to assemble permanent magnet (1); Assemble after permanent magnet, again equilateral triangle ferrite sheet (3) is directly placed on biasing permanent magnet (1), form " internal magnetization " waveguide junction circulator, effectively reduced the phase mutual edge distance between two biasing permanent magnets in waveguide junction circulator, and thickness and the volume of the permanent magnet that simultaneously reduces to setover, be suitable for being compactly arranged of installation on array antenna.
2. ultra-thin three-port waveguide junction circulator according to claim 1, is characterized in that: described biasing permanent magnet (1) is samarium-cobalt material circular piece, is of a size of Φ 15 * 1.2mm, and surface electric field intensity is 750G
sthe electroplate of magnet is to improve electric conductivity, two biasing permanent magnets are embedded in respectively " Y " shape in waveguide cavity groove and waveguide cover and mate in the circular groove close with its size of step center, with the contact-making surface conductive adhesive of groove, the outer surface of circular biasing permanent magnet is flushed with " Y " shape coupling step surface.
3. ultra-thin three-port waveguide junction circulator according to claim 1, is characterized in that: described equilateral triangle ferrite sheet (3) consists of lithium ferrotianium ferrite, and its saturation magnetization is 1600G
sthe length of side 10.5mm of equilateral triangle lithium titanium ferrite sheet, thickness 3.0mm, stick with glue knot on biasing permanent magnet, three drift angles of lithium titanium ferrite sheet are aimed at respectively and are pressed in advance on the axis that is inscribed in the San Ge branch on " Y " shape step, with the dead in line of Waveguide branching, the center of triangle ferrite sheet simultaneously with the center superposition of " Y " shape step.
4. ultra-thin three-port waveguide junction circulator according to claim 2, it is characterized in that: Cao He chamber, the chamber cover split-type formula process and assemble of described three-port waveguide junction circulator forms, port adpting flange is the Special-shaped flange of overall dimension 17 * 54mm, and waveguide mouth is still BJ-100 standard size 22.86 * 10.16mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010230658.3A CN101894998B (en) | 2010-07-16 | 2010-07-16 | Ultra-thin three-port waveguide junction circulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010230658.3A CN101894998B (en) | 2010-07-16 | 2010-07-16 | Ultra-thin three-port waveguide junction circulator |
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| Publication Number | Publication Date |
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| CN101894998A CN101894998A (en) | 2010-11-24 |
| CN101894998B true CN101894998B (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010230658.3A Expired - Fee Related CN101894998B (en) | 2010-07-16 | 2010-07-16 | Ultra-thin three-port waveguide junction circulator |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629705A (en) * | 2012-04-28 | 2012-08-08 | 成都泰格微波技术股份有限公司 | C-band high-power circulator and production process thereof |
| CN105659315A (en) * | 2013-08-21 | 2016-06-08 | 德克萨斯大学***董事会 | Non-reciprocal acoustic devices based on linear or angular momentum biasing |
| CN103490130B (en) * | 2013-08-30 | 2016-03-02 | 南京信息职业技术学院 | Waveguide junction circulator and manufacturing method of matching block thereof |
| CN103513194B (en) * | 2013-10-06 | 2016-03-02 | 宁波大红鹰学院 | A kind of waveguide-coupled magnetoelectronic devices |
| CN104786171B (en) * | 2015-04-29 | 2017-06-09 | 西南应用磁学研究所 | Contact gyromagnet substrate bonds positioning tool and localization method |
| CN104916891A (en) * | 2015-06-30 | 2015-09-16 | 成都八九九科技有限公司 | High-power waveguide circulator |
| CN108306084B (en) * | 2018-03-06 | 2023-09-12 | 西南应用磁学研究所 | Three-hole grounding miniaturized quasi-SIW circulator |
| CN109494438B (en) * | 2018-11-02 | 2021-12-07 | 中国航天时代电子有限公司 | Waveguide receiving and transmitting isolator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874055A (en) * | 2001-10-10 | 2006-12-06 | 马科尼通讯股份有限公司 | Circulator |
| CN2904324Y (en) * | 2006-04-27 | 2007-05-23 | 摩比天线技术（深圳）有限公司 | Circulator with junction |
| CN201112534Y (en) * | 2007-09-18 | 2008-09-10 | 北京华大智宝电子***有限公司 | High power annular equipment |
-
2010
- 2010-07-16 CN CN201010230658.3A patent/CN101894998B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874055A (en) * | 2001-10-10 | 2006-12-06 | 马科尼通讯股份有限公司 | Circulator |
| CN2904324Y (en) * | 2006-04-27 | 2007-05-23 | 摩比天线技术（深圳）有限公司 | Circulator with junction |
| CN201112534Y (en) * | 2007-09-18 | 2008-09-10 | 北京华大智宝电子***有限公司 | High power annular equipment |
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| CN101894998A (en) | 2010-11-24 |
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