CN202275905U - Subminiaturized isolator - Google Patents
Subminiaturized isolator Download PDFInfo
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- CN202275905U CN202275905U CN2011203298989U CN201120329898U CN202275905U CN 202275905 U CN202275905 U CN 202275905U CN 2011203298989 U CN2011203298989 U CN 2011203298989U CN 201120329898 U CN201120329898 U CN 201120329898U CN 202275905 U CN202275905 U CN 202275905U
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- cavity
- permanent magnet
- composite ceramics
- magnetic circuit
- microwave ferrite
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Abstract
The utility model discloses a subminiaturized isolator. A magnetic circuit board, an upper permanent magnet, an upper composite ceramic microwave ferrite, a central conductor, a lower composite ceramic microwave ferrite and a lower permanent magnet are sequentially superposed in a cavity from top to bottom, wherein each composite ceramic microwave ferrite is correspondingly provided with an absorbing load and a cambered notch; two holes are arranged on the periphery of the cavity; two leading-out ports of the central conductor are led out of the cavity through the holes, and the other leading-out port is sandwiched between the absorbing loads; an anti-skid rubber is arranged at the cambered notches of the composite ceramic microwave ferrites; a conductive rubber ring is sheathed outside the permanent magnet; and the magnetic circuit board is fixed at the opening of the cavity as a cavity cover plate. The utility model provides a nonreciprocal electronic component which is mainly used in a phased-array radar T/R assembly; due to the adoption of the integrated structure, the subminiaturized isolator does not need any adhesive or screw, has the advantages of subminiaturized volume, simple structure, favorable closing performance of the magnetic circuit, small magnetic leakage, high reliability and favorable device overall performance, and is easy to assemble.
Description
Technical field
The utility model relates to field of mobile communication, relates in particular to a kind of subminaturization isolator that is applied in the phased array radar T/R assembly.
Background technology
Microwave current integrated circuit volume is more and more littler, has therefore also proposed the requirement of miniaturization for devices such as circulators.The band wire loop device that the volume of import is less; Its structure mainly be two ferrite wafers fill out the centre metal disk and the band line ground plane between the space in; Three band line conductors are attached on the periphery of central metal disk with 120 ° of intervals, and direct current biasing magnetic field vertically is added on the ground plane.Though its volume is little of about 15 * 9 * 8mm, but still bigger, can not adapt to the needs of miniaturization.At present domestic also by a kind of circulator of miniaturization, on ferrite substrate, adopt three of thin film photolithography fabrication techniques to be mutually the microstrip line of 120 symmetries, form a metallic film disk in the junction of microstrip line, additional L/C matching network on microstrip line; Potsherd is mounted on the metallic film disk, and permanent magnet is mounted on the potsherd.The circulator of this structure is only used a permanent magnet, and volume is less, installs also more convenient.Outside but this circulator parts all were exposed to, outer cover was not with in the outside, and all adopted the mode of gummed to assemble between parts, and structure is unreliable, and electric conductivity is relatively poor; Adopt photoetching technique processing in addition, processing technology is had relatively high expectations, and production cost is high.Existing Drop-in spacer structures is done shell with discrete metal material, by the polylith permeability magnetic material with adhesive or screw on cavity, constitute magnetic loop with cavity.This structure processing consumptive material is big, and magnetic circuit is not exclusively closed, and leakage field is bigger, and magnetic circuit efficient is low, and the device temperature poor-performing can not guarantee the stability of device work under the limiting temperature.
Fig. 3 is the isolator sketch map.Isolator is a two-port device, and to output (2), the energy attenuation of transmission is less from input (1) for signal, and signal then is high decay from output (2) to input (1), is absorbed by load.The design concept of three desirable end junction circulators is based on scattering matrix theory, and collision matrix is set up the incident wave that finishes and the relation between the reflected wave.
Fig. 4 is three end circulator sketch mapes.Three end circulators are made up of central area and three transmission lines that are coupled with it that a ferrite loads, through changing ferritic size, saturation magnetic moment; Dielectric constant; Add the geomery of permanent magnetic field and center conductor, thereby change the eigenvalue of collision matrix, form circulator.For desirable three end circulators, the electromagnetic wave of 1 port input can only be from the output of 2 ports, and the electromagnetic wave of 2 ports input can only be exported from 3 ports, and the electromagnetic wave of 3 ports input can only be exported from 1 port.Isolator is to extend from three-port circulator, adds at one end that just matched load (load of little reflection termination) forms.
Three end circulators and isolator can be made coaxial, little band, and the band line, various ways such as waveguide are used in the various electromagnetic transmission system.
Fig. 5 is the duplexer sketch map, and two isolators and 90 ° of mixers that electric bridge is formed are two-in-one device.Also can make four unification mixers, it is made up of four isolators and three 90 ° of electric bridges.This mixer end 1 and hold 2 isolation must be greater than 50dB.
Fig. 6 is a power amplifier interstage matched sketch map, the coupling of power amplifier inter-stage and decoupling.In solid-state amplification system, the isolation between tandem formula amplifier stage is necessary, increases the stability of whole amplifier.
Fig. 7 eliminates the phase mutual interference between the emission source for eliminating the interference sketch map between emission source, and it also is to lump together use with several bank of filters.Similar with the effect of decoupling of above-mentioned inter-stage, difference is to be to eliminate alien frequencies to disturb here.
Fig. 8 is two-in-one antenna transmission systems sketch map, two-in-one antenna transmission systems.The emission source of two different frequencies forms through two circulators and two filter combinations.Also can become four unifications, ten six directions one, this is very useful in the honeycomb mobile communication base station.
Summary of the invention
The utility model technical problem to be solved provide a kind of simple in structure, be easy to the assembling, the high performance subminaturization isolator of debugging.
For solving the problems of the technologies described above; The utility model provides a kind of subminaturization isolator; Comprise cavity, composite ceramics microwave ferrite, center conductor, non-slip rubber, permanent magnet, conductive rubber ring and magnetic circuit plate, it is characterized in that said permanent magnet is divided into permanent magnet and following permanent magnet; Said composite ceramics microwave ferrite is divided into composite ceramics microwave ferrite and following composite ceramics microwave ferrite; Said magnetic circuit plate, go up permanent magnet, go up the composite ceramics microwave ferrite, center conductor, down the composite ceramics microwave ferrite, permanent magnet is stacked in the cavity successively from top to bottom down, correspondence is provided with absorbing load on said two composite ceramics microwave ferrites, said cavity periphery is provided with two holes; Said center conductor has three to draw port; Wherein draw port and draw cavity through hole for two, another is drawn port and is clipped between the absorbing load of two composite ceramics microwave ferrites, and the end away from absorbing load on said two composite ceramics microwave ferrites forms arc notch; Said non-slip rubber is located at the arc notch place of composite ceramics microwave ferrite; Said conductive rubber ring set is divided into conductive rubber ring and following conductive rubber ring, is enclosed within the permanent magnet and the following permanent magnet outside respectively, and said magnetic circuit plate is fixed on the opening part of cavity as the cavity cover plate.
Aforesaid subminaturization isolator is characterized in that: said composite ceramics microwave ferrite is integrated by pivoting rail oxysome, high dielectric constant ceramic dielectric and absorbing load.
Aforesaid subminaturization isolator is characterized in that: said housing surface and center conductor electroplate.
Aforesaid subminaturization isolator is characterized in that: draw port and draw with the direction of drawing of 120 ° of spaces for three of said center conductor.
Aforesaid subminaturization isolator is characterized in that: said magnetic circuit plate periphery and cavity hatch place are processed with corresponding screw thread, and the magnetic circuit plate is through being threaded into the cavity hatch place.
The beneficial effect that the utility model reached is: the utility model has subminaturization owing to adopted integral structure, and is simple in structure; The magnetic circuit closure is good, and leakage field is little, and technical indicator and reliability are high; Characteristics such as easy for installation can be widely used in the systems such as radar.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the external form figure after the assembling of the utility model;
Fig. 3 is the isolator sketch map;
Fig. 4 is three end circulator sketch mapes;
Fig. 5 is the duplexer sketch map;
Fig. 6 is a power amplifier interstage matched sketch map;
Fig. 7 is for eliminating the interference sketch map between emission source;
Fig. 8 is two-in-one antenna transmission systems sketch map.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Like Fig. 1, shown in Figure 2; The cavity 1 of subminaturization isolator is provided with cylindrical openings and two holes in the outside up; Stack down permanent magnet 52, following composite ceramics microwave ferrite 32, center conductor 2 in the said cavity 1 from the bottom to top successively, go up composite ceramics microwave ferrite 31, go up permanent magnet 51 and magnetic circuit plate 7; Wherein, the outside of last permanent magnet 51 and following permanent magnet 52 all is with a conductive rubber ring 6, is used for the permanent magnet centre-lock; When strengthening magnetic field, improve the conductivity of cavity 1; The composite ceramics microwave ferrite is integrated by pivoting rail oxysome, high dielectric constant ceramic dielectric and absorbing load 4; High dielectric constant ceramic dielectric is rounded; Be located at the center of composite ceramics microwave ferrite; On the composite ceramics microwave ferrite away from one section curved breach of absorbing load 4; The arc notch place is provided with the non-slip rubber (not shown), prevents that magnetic circuit plate 7 position between composite ceramics microwave ferrite and the center conductor 2 in rotation process from moving and the center conductor 2 that causes and the short circuit of cavity 1; Center conductor 2 is provided with three ports of drawing of drawing 120 ° of direction spaces; One of them is drawn port and is clipped between two absorbing loads 4 on the composite ceramics microwave ferrite; Two other is drawn port and draws beyond the cavity through two holes on the cavity respectively; The central area area of center conductor 2 is bigger, is clipped between two high dielectric constant ceramic dielectrics on the composite ceramics microwave ferrite; Magnetic circuit plate 7 peripheries and cavity 1 opening part are processed with corresponding screw thread, and magnetic circuit plate 7 is encapsulated in all the other parts in the cavity 1 through being threaded into cavity 1 opening part, has guaranteed reliability of structure; The electroplate of center conductor 2 and cavity 1 can make it in environment such as humidity, be difficult for oxidation, increases the service life.
The subminaturization isolator of the utility model is a kind of nonreciprocal electronic component, is mainly used in the phased array radar T/R assembly, has adopted incorporate structure; Need not adhesive and screw, have the volume subminaturization, simple in structure; The magnetic circuit closure is good, and leakage field is little, and reliability is high; The device overall performance is good, the beneficial effect that is easy to assemble.
Above embodiment limits the utility model never in any form, every above embodiment is made with the equivalent transformation mode other improve and use, all belong to the protection range of the utility model.
Claims (5)
1. subminaturization isolator; Comprise cavity, composite ceramics microwave ferrite, center conductor, non-slip rubber, permanent magnet, conductive rubber ring and magnetic circuit plate; It is characterized in that; Said permanent magnet is divided into permanent magnet and following permanent magnet, and said composite ceramics microwave ferrite is divided into composite ceramics microwave ferrite and following composite ceramics microwave ferrite, said magnetic circuit plate, go up permanent magnet, upward composite ceramics microwave ferrite, center conductor, following composite ceramics microwave ferrite, following permanent magnet are stacked in the cavity successively from top to bottom; Correspondence is provided with absorbing load on said two composite ceramics microwave ferrites; Said cavity periphery is provided with two holes, and said center conductor has three to draw port, wherein draws port and draws cavity through hole for two; Another is drawn port and is clipped between the absorbing load of two composite ceramics microwave ferrites; End away from absorbing load on said two composite ceramics microwave ferrites forms arc notch, and said non-slip rubber is located at the arc notch place of composite ceramics microwave ferrite, and said conductive rubber ring set is divided into conductive rubber ring and following conductive rubber ring; Be enclosed within the permanent magnet and the following permanent magnet outside respectively, said magnetic circuit plate is fixed on the opening part of cavity as the cavity cover plate.
2. subminaturization isolator according to claim 1 is characterized in that: said composite ceramics microwave ferrite is integrated by pivoting rail oxysome, high dielectric constant ceramic dielectric and absorbing load.
3. subminaturization isolator according to claim 2 is characterized in that: said housing surface and center conductor electroplate.
4. subminaturization isolator according to claim 3 is characterized in that: draw port and draw with the direction of drawing of 120 ° of spaces for three of said center conductor.
5. subminaturization isolator according to claim 4 is characterized in that: said magnetic circuit plate periphery and cavity hatch place are processed with corresponding screw thread, and the magnetic circuit plate is through being threaded into the cavity hatch place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203298989U CN202275905U (en) | 2011-09-05 | 2011-09-05 | Subminiaturized isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203298989U CN202275905U (en) | 2011-09-05 | 2011-09-05 | Subminiaturized isolator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202275905U true CN202275905U (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203298989U Expired - Fee Related CN202275905U (en) | 2011-09-05 | 2011-09-05 | Subminiaturized isolator |
Country Status (1)
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| CN (1) | CN202275905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112479701A (en) * | 2020-11-27 | 2021-03-12 | 横店集团东磁股份有限公司 | Composite dielectric ceramic powder co-fired magnet, preparation method thereof and composite dielectric ceramic powder co-fired magnetic sheet |
| CN116742304A (en) * | 2023-04-23 | 2023-09-12 | 中国电子科技集团公司第十六研究所 | Cryogenic isolator and superconducting quantum computer system |
-
2011
- 2011-09-05 CN CN2011203298989U patent/CN202275905U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112479701A (en) * | 2020-11-27 | 2021-03-12 | 横店集团东磁股份有限公司 | Composite dielectric ceramic powder co-fired magnet, preparation method thereof and composite dielectric ceramic powder co-fired magnetic sheet |
| CN116742304A (en) * | 2023-04-23 | 2023-09-12 | 中国电子科技集团公司第十六研究所 | Cryogenic isolator and superconducting quantum computer system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20190905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |