CN201063355Y - Built-in miniaturized isolater - Google Patents
Built-in miniaturized isolater Download PDFInfo
- Publication number
- CN201063355Y CN201063355Y CNU2007200402984U CN200720040298U CN201063355Y CN 201063355 Y CN201063355 Y CN 201063355Y CN U2007200402984 U CNU2007200402984 U CN U2007200402984U CN 200720040298 U CN200720040298 U CN 200720040298U CN 201063355 Y CN201063355 Y CN 201063355Y
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- cavity
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- microwave
- center conductor
- conductive board
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Abstract
The utility model provides an embedded miniature isolator, which mainly changes a split type cavity into an integral cavity, and changes a magnetic conductive board as a upper cover to be screwed on a cavity port through screw threads based on the prior embedded isolator; and adopts measures of using composite microwave ferrite, plating silver on the surface and so on. The utility model has the characteristics of good magnetic circuit closure, small magnetic leakage, small loss, high efficiency, easy assembly without adhesive and screw, easy miniaturization, high reliability, good integral performance of the component, etc. The utility model can be widely applied to a microwave communication system.
Description
Technical field
The utility model relates to a kind of isolator, particularly a kind of GSM that is widely used in, in the base station and mobile station system of CDMA or TD-SCDMA mobile communication such as (3G), mainly make the composite device (duplexer or multiplexer) of sending and receiving letters machine, or isolate and in measuring system, play the isolator that the decoupling effect is used in the input that transmits and receives system's rate of doing work amplifier, switching amplifier, output.Belong to nonreciprocal transmission apparatus.
Background technology
Existing embedded (Drip-in) isolator that is used for mobile communcations system, be provided with the shell of cavity with the discrete bonding one-tenth of several permeability magnetic materials, its structure as shown in Figure 1, permeability magnetic material 1 usefulness adhesive among the figure is glued on the outer wall of cavity 2, pack in cavity 2 two ferrites 3 (not being with the ceramic ring medium), center conductor 4, magnetic conduction disk 5, magnetic conduction disk 6, temperature-compensating sheet 7 and permanent magnet 8, permeability magnetic material 9 and permeability magnetic material 10 are fixed on the last accent and following accent of cavity 2 with screw respectively as loam cake and lower cover.Permanent magnet provides bias magnetic field for ferrite, and center conductor 4 has three to draw end points, and one of them port connects matched load 11, and other two ports are respectively input and output.The housing reason polylith permeability magnetic material of this structure is bonded on the cavity with adhesive, and is fixed on two ports of cavity with the permeability magnetic material of screw with the upper and lower cover plate of double as, constitutes magnetic loop with cavity.This structure isolator exists the processing consumptive material big, and magnetic circuit is not exclusively closed, and leakage field is bigger, and magnetic circuit efficient is low, the device bulk temperature, and shortcomings such as poor-performing, ferrite does not add ceramic dielectric, is difficult to accomplish the subminaturization of structure.
Summary of the invention
The purpose of this utility model is to overcome the weak point that above-mentioned existing isolator exists, provide a kind of simple in structure, volume is little, the little efficient height of loss, be easy to the built-in small isolator that assembles and debug.
Built-in small isolator of the present utility model comprises cavity and is contained in two interior microwave ferrites of cavity, center conductor, two magnetic conduction sheets, a magnetic conductive board, the temperature-compensating sheet, permanent magnet and matched load, described center conductor is clipped between two microwave ferrites, wherein, three lead-in wires of center conductor are introduced to outside the cavity, one velamen is welded on the pad of matched load, other two are respectively input and output, two magnetic conduction sheets be placed on respectively two microwave ferrites on, following both sides, temperature-compensating sheet and permanent magnet overlay on the upside magnetic conduction sheet successively, the magnetic conductive board lid is contained on the cavity mouth, the integrated cavity of described cavity, the cavity mouth is provided with internal thread, the edge of magnetic conductive board is provided with external screw thread, magnetic conductive board as loam cake through the screw thread spinning on the cavity mouth.
Described cavity is the magnetic conduction cavity, and microwave ferrite is the compound microwave ferrite that the ceramic dielectric by gyromagnetic ferrite and high-k constitutes.In order further to effectively reduce the insertion loss of device, can be at the electroplate of cavity, center conductor, magnetic conduction sheet and temperature-compensating sheet.
Built-in small isolator of the present utility model is owing to having adopted cavity to be integrated and having used measures such as compound microwave ferrite and electroplate, it is good obviously to have the magnetic circuit closure, leakage field is little, the little efficient height of loss, need not adhesive and screw, be easy to miniaturization, reliability height, advantage such as the device overall performance is good.Can be widely used in the microwave communication system.
Description of drawings
Among Fig. 11 is permeability magnetic material, the 2nd, and cavity, 3 is two ferrites (not being with the ceramic ring medium), the 4th, center conductor, the 5th, magnetic conduction disk, the 6th, magnetic conduction disk, the 7th, temperature-compensating sheet, the 8th, permanent magnet, the 9th, permeability magnetic material, the 10th, permeability magnetic material, the 11st, matched load.
Embodiment
Referring to accompanying drawing 2,21 among the figure is cavitys, and 22 is two magnetic conduction sheets, and 23 is two composite ceramics microwave ferrites, the 24th, and center conductor, the 25th, temperature-compensating sheet, the 26th, permanent magnet, the 27th, magnetic conductive board, the 28th, matched load.Described center conductor 24 is installed in the middle of two microwave ferrites 23, center conductor 24 has three to draw end points, wherein a velamen is welded on the pad of matched load 28, other two are respectively input and output, two magnetic conduction sheets 22 are placed on the upper and lower both sides of two ferrites 23 respectively, temperature-compensating sheet 25 and permanent magnet 26 overlay on the microwave ferrite 23 successively, and magnetic conductive board 27 is fixed on the cavity mouth of cavity 21 through the screw thread spinning as loam cake.Wherein, cavity 21 integrated cavitys, the cavity mouth is provided with internal thread, the edge of magnetic conductive board 27 is provided with external screw thread, magnetic conductive board 27 as loam cake on the cavity mouth of screw thread spinning at cavity 21.Described cavity 21 is the magnetic conduction cavity, and microwave ferrite 23 is compound microwave ferrites that the ceramic dielectric by gyromagnetic ferrite and high-k constitutes.In order further to effectively reduce the insertion loss of device, can be at the electroplate of cavity 21, center conductor 24, magnetic conduction sheet 22 and temperature-compensating sheet 25.Shape after its assembling as shown in Figure 3.
Claims (3)
1. a built-in small isolator comprises cavity and is contained in two interior microwave ferrites of cavity, center conductor, two magnetic conduction sheets, a magnetic conductive board, the temperature-compensating sheet, permanent magnet and matched load, described center conductor is clipped between two microwave ferrites, wherein, three lead-in wires of center conductor are introduced to outside the cavity, one velamen is welded on the pad of matched load, other two are respectively input and output, two magnetic conduction sheets be placed on respectively two microwave ferrites on, following both sides, temperature-compensating sheet and permanent magnet overlay on the upside magnetic conduction sheet successively, the magnetic conductive board lid is contained on the cavity mouth, it is characterized in that: the integrated cavity of cavity, the cavity mouth is provided with internal thread, the edge of magnetic conductive board is provided with external screw thread, magnetic conductive board as loam cake through the screw thread spinning on the cavity mouth.
2. built-in small isolator as claimed in claim 1 is characterized in that described cavity is the magnetic conduction cavity, and microwave ferrite is the compound microwave ferrite that the ceramic dielectric by gyromagnetic ferrite and high-k constitutes.
3. built-in small isolator as claimed in claim 1 or 2, the surface that it is characterized in that described cavity, center conductor, magnetic conduction sheet and temperature-compensating sheet is a silver-plated surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200402984U CN201063355Y (en) | 2007-07-06 | 2007-07-06 | Built-in miniaturized isolater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200402984U CN201063355Y (en) | 2007-07-06 | 2007-07-06 | Built-in miniaturized isolater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201063355Y true CN201063355Y (en) | 2008-05-21 |
Family
ID=39451742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200402984U Expired - Fee Related CN201063355Y (en) | 2007-07-06 | 2007-07-06 | Built-in miniaturized isolater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201063355Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544647A (en) * | 2011-12-23 | 2012-07-04 | 成都泰格微波技术股份有限公司 | Waveguide isolated duplex integrated component |
-
2007
- 2007-07-06 CN CNU2007200402984U patent/CN201063355Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544647A (en) * | 2011-12-23 | 2012-07-04 | 成都泰格微波技术股份有限公司 | Waveguide isolated duplex integrated component |
| WO2013091258A1 (en) * | 2011-12-23 | 2013-06-27 | 成都泰格微波技术股份有限公司 | Waveguide isolated duplex integrated component |
| CN102544647B (en) * | 2011-12-23 | 2014-03-26 | 成都泰格微波技术股份有限公司 | Waveguide isolated duplex integrated component |
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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: 20080521 Termination date: 20140706 |
|
| EXPY | Termination of patent right or utility model |