CN201994394U - Bipolar micro-strip circulator component with magnetic shielding function - Google Patents
Bipolar micro-strip circulator component with magnetic shielding function Download PDFInfo
- Publication number
- CN201994394U CN201994394U CN2011200417420U CN201120041742U CN201994394U CN 201994394 U CN201994394 U CN 201994394U CN 2011200417420 U CN2011200417420 U CN 2011200417420U CN 201120041742 U CN201120041742 U CN 201120041742U CN 201994394 U CN201994394 U CN 201994394U
- Authority
- CN
- China
- Prior art keywords
- magnetic
- sheets
- twin
- sheet
- permanent magnetism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Non-Reversible Transmitting Devices (AREA)
Abstract
The utility model discloses a bipolar micro-strip circulator component with a magnetic shielding function. Metal shielding sheets (10) with soft magnetic performance are placed on two permanent magnetic sheets (4) of the bipolar micro-strip circulator component, wherein, the magnetic fields of the permanent magnetic sheets are in different directions; and a closed magnetic loop is formed through a grounding support bottom plate (1), a ferrite substrate (2), the permanent magnetic sheets (4) and the metal shielding sheets (10). Therefore, the magnetic shielding problem is ingeniously solved, the influence of magnetic field leakage on other surrounding elements is effectively reduced, and the influence of external magnets and ferromagnetic substances on the magnetic fields of the device is avoided; and the magnetic shielding sheets of the product have simple structures and are convenient to debug, so that the reliability of the product is improved.
Description
Technical field
The utility model relates to a kind of microstrip circulator, refers in particular to adopt the be made twin-stage microstrip circulator assembly of band magnetic screen of microstrip circuit.
Background technology
Form a kind of three-port circulator by a circulator and an isolator and be called twin-stage circulator assembly.Wherein the load of isolator can be fabricated directly on the ferrite substrate, also can be external load.That adopts that microstrip circuit makes just is called twin-stage microstrip circulator assembly.
Because microstrip circulator, microstrip isolator main feature are that volume is little, its bias magnetic field normally exposes above ferrite substrate, and magnetic field does not form the closed-loop path, and such one is that leakage field is big, other components and parts performance around influence interferes with; The 2nd, when having ferromagnetic material in the certain limit of around the device and top, will change the size in device magnetic field, thereby influence the performance of device, therefore require product to have certain magnetic screen ability, reduce the influence of peripheral cell and the interference of outer bound pair device.
The bias magnetic field of the twin-stage microstrip circulator assembly that adopts mainly contains following two kinds of structures at present: first kind of structure is relatively more commonly used, bias magnetic field is the top that is placed on ferrite substrate, bond together by dieelctric sheet between permanent magnetism sheet and the substrate, or directly the permanent magnetism sheet is bonded on the substrate.Because the magnetic direction of two knots that go in ring of twin-stage microstrip circulator assembly is opposite, and two permanent magnetism sheet phase spacings are also very near, the magnet top is without any shielding, and magnetic line of force distribution up is very complicated like this, and diamagnetic interference performance is poor.When in the device certain limit ferromagnetic material being arranged, will change the bias magnetic field of product, thereby have influence on the performance of twin-stage microstrip circulator spare, Luo Lu permanent magnetic field also exerts a certain influence to the performance of peripheral magnetosensitive sense components and parts simultaneously.
Second kind of structure is the magnetic shielding cover that is made into definite shape above the permanent magnetism sheet with soft magnetic material, and the base plate that has soft magnet performance below substrate links together, in the peripheral magnetic screen that forms a closure of product.The advantage of this structure is: 1) magnetic field forms closed loop, realizes the purpose of magnetic screen, has reduced leakage field; 2) reduce the influence of magnetic field on every side and ferromagnetic material to properties of product.Shortcoming is: 1) radome and the base plate of permanent magnetism sheet top can not link together well; 2) complex structure, inconvenient production debugging; 3) radome and base plate need strike out certain shape, and the internal stress that workpiece produces makes substrate break easily.
The utility model content
The purpose of this utility model is to realize the magnetic screen of present twin-stage microstrip circulator assembly, guaranteeing to reduce stray field under little band device miniaturization condition, improves anti-external magnetic field capability of influence.Provide a kind of simple in structure, be convenient to assemble, band magnetic screen twin-stage microstrip circulator assembly that reliability is high.
The purpose of this utility model is achieved through the following technical solutions: a kind of twin-stage microstrip circulator assembly, mainly supported base plate, ferrite substrate, be arranged on dieelctric sheet on the ferrite substrate, be arranged on the opposite permanent magnetism sheet of two magnetic directions on the potsherd and be arranged on two shield blade on the permanent magnetism sheet and constitute by ground connection.Described ground connection is supported base plate and shield blade is to be made by magnetically soft alloy, and substrate and dieelctric sheet, permanent magnetism sheet and shield blade bond together by adhesive.
In order to satisfy the user demand of different condition, between described two permanent magnetism sheets and shield blade, also be provided with dieelctric sheet.
In order to ensure result of use, described shield blade is made by soft magnetic material.
It is a kind ofly to be made up of a microstrip circulator and the microstrip isolator with built-in load that shield blade is applied to twin-stage microstrip circulator assembly.A kind of is to be connected to form by a microstrip circulator and a microstrip circulator and external load, and ferrite substrate and external load bottom surface are welded in ground connection and support on the base plate.
The utility model compared with prior art has following advantage and beneficial effect:
1) because shield blade of the present utility model adopts soft magnetic material to make, good magnetic property is arranged, two permanent magnetism sheet magnetic directions that are added on the ferrite substrate are opposite, place two shield blade on the permanent magnetism sheet to make magnetic field form the closed-loop path like this, improved the efficient in magnetic field, reduce stray field, ferrite substrate is fully magnetized, improve the performance of product.
2) the utility model has been avoided the influence to device magnetic field of external magnetic field and ferromagnetic material effectively owing to make magnetic field form closed loop, has also reduced simultaneously the influence of other components and parts has on every side been realized the effect of magnetic screen.
3) the utility model is in process of producing product, and is simple to operate, fixing reliable, avoids breaking of substrate, improved reliability of products.
Description of drawings
Fig. 1 is that magnet is exposed outside, and the built-in load that does not add shielding declines and is with twin-stage circulator modular construction schematic diagram;
Fig. 2 is that magnet is exposed outside, and the external load that does not add shielding declines and is with twin-stage circulator modular construction schematic diagram;
Fig. 3 is a kind of twin-stage circulator assembly with magnetic screen, and top radome and following base plate combine, form close and the structural representation of magnetic shielding cover;
Fig. 4 is the structural representation of the band shielding twin-stage microstrip circulator assembly of the built-in load of the utility model;
Fig. 5 is the structural representation of the band shielding twin-stage microstrip circulator assembly of the external load of the utility model.
Wherein, the pairing name of the Reference numeral in the accompanying drawing is called: 1-ground connection is supported base plate, 2-ferrite substrate, 3-dieelctric sheet, 4-permanent magnetism sheet, 5-microstrip circuit, the built-in load of 6-, the external load of 7-, 8-dieelctric sheet, 9-radome, 10-shield blade.
Embodiment
The utility model is described in further detail below in conjunction with embodiment.
Shown in Fig. 4～5 is twin-stage microstrip circulator modular construction schematic diagram of the present utility model, and wherein Fig. 4 is the twin-stage microstrip circulator assembly that is made of built-in load 6, and Fig. 5 is the twin-stage microstrip circulator assembly that is made of external load 7.The metal ground plane at ferrite substrate 2 back sides and ground connection are supported base plate 1 sealing together, and it is the size that is made into needs by the metal material that has soft magnet performance that this ground connection is supported base plate 1.Use adhesive to be pasted with dieelctric sheet 3 on ferrite substrate 2 end faces that are provided with microstrip circuit 5, also use adhesive to be pasted with permanent magnetism sheet 4 in the upper surface of dieelctric sheet 3, according to the requirement of device, the magnetic direction of two bonding permanent magnetism sheets 4 is opposite.Use adhesive to be bonded with shield blade 10 two permanent magnetism sheet 4 upper surfaces, for utilance, uniformity that improves magnetic field and the effect that reaches magnetic screen, shield blade 10 can be made into arbitrary shape as required by the metal material with soft magnet performance, consider result of use, this shield blade 10 can adopt Armco iron, iron-nickel alloy or other to have the metal alloy of soft magnet performance.
In order to satisfy the instructions for use under the different situations, the utility model is also pasted two dieelctric sheets 8 between two permanent magnetism sheets 4 and shield blade 10, by adjusting dieelctric sheet 8 thickness, can adjust the power of size, uniformity and the magnetic screen in magnetic field, dieelctric sheet 8 can adopt polysulfones, polytetrafluoroethylene or ceramic material.
Claims (4)
1. twin-stage microstrip circulator assembly with magnetic screen, mainly support base plate (1) by ground connection, ferrite substrate (2), be arranged on the dieelctric sheet (3) on the ferrite substrate, be arranged on two permanent magnetism sheets (4) that magnetic direction is opposite on the dieelctric sheet, built-in load (6) or external load (7) and the shield blade (10) that is arranged on the permanent magnetism sheet constitute, it is characterized in that described shield blade (10) is to be made by soft magnetic metallic material, and ferrite substrate (2) and dieelctric sheet (3), permanent magnetism sheet (4) and shield blade (10) bond together by adhesive.
2. according to the twin-stage microstrip circulator assembly of the described band magnetic screen of claim 1, it is characterized in that, between opposite permanent magnetism sheet (4) of described two magnetic directions and shield blade (10), also be provided with two dieelctric sheets (8), bond together by adhesive.
3. according to the twin-stage microstrip circulator assembly of the described band magnetic screen of claim 1, it is characterized in that described shield blade (10) is made by Armco iron, iron-nickel alloy or other alloys with soft magnet performance.
4. according to the twin-stage microstrip circulator assembly of the described band magnetic screen of claim 2, it is characterized in that described dieelctric sheet (8) is formed by polysulfones, polytetrafluoroethylene or ceramic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200417420U CN201994394U (en) | 2011-02-18 | 2011-02-18 | Bipolar micro-strip circulator component with magnetic shielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200417420U CN201994394U (en) | 2011-02-18 | 2011-02-18 | Bipolar micro-strip circulator component with magnetic shielding function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201994394U true CN201994394U (en) | 2011-09-28 |
Family
ID=44670872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200417420U Expired - Fee Related CN201994394U (en) | 2011-02-18 | 2011-02-18 | Bipolar micro-strip circulator component with magnetic shielding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201994394U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647126A (en) * | 2013-12-18 | 2014-03-19 | 成都致力微波科技有限公司 | Two-junction microstrip circulator with magnetic shielding case and assembly formed by same |
| CN106170198A (en) * | 2015-05-22 | 2016-11-30 | 三星电机株式会社 | For shielding the sheet of electromagnetic wave |
| CN114069179A (en) * | 2022-01-17 | 2022-02-18 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Four-end circulator for high micro-discharge threshold satellite |
-
2011
- 2011-02-18 CN CN2011200417420U patent/CN201994394U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647126A (en) * | 2013-12-18 | 2014-03-19 | 成都致力微波科技有限公司 | Two-junction microstrip circulator with magnetic shielding case and assembly formed by same |
| CN103647126B (en) * | 2013-12-18 | 2015-12-09 | 成都致力微波科技有限公司 | A kind of with the bipolar micro-strip circulator of magnetic shielding cover and the assembly of formation thereof |
| CN106170198A (en) * | 2015-05-22 | 2016-11-30 | 三星电机株式会社 | For shielding the sheet of electromagnetic wave |
| CN106170198B (en) * | 2015-05-22 | 2019-05-21 | 三星电机株式会社 | For shielding the piece of electromagnetic wave |
| CN114069179A (en) * | 2022-01-17 | 2022-02-18 | 西南应用磁学研究所(中国电子科技集团公司第九研究所) | Four-end circulator for high micro-discharge threshold satellite |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103647125B (en) | The unijunction microstrip circulator of a kind of band magnetic shielding cover and microstrip isolator | |
| CN103647126B (en) | A kind of with the bipolar micro-strip circulator of magnetic shielding cover and the assembly of formation thereof | |
| CN201994394U (en) | Bipolar micro-strip circulator component with magnetic shielding function | |
| CN203596403U (en) | Unijunction microstrip circulator having magnetic shielding cover | |
| CN209088043U (en) | A kind of microwave ferrite circulator isolator bias magnetic field debugging structure | |
| CN203721864U (en) | Single-junction microstrip isolator with magnetic shield | |
| CN208423116U (en) | A kind of a variety of coaxial interface form strip line circulator structures of K-band | |
| CN205452499U (en) | From taking magnetic screen formula unijunction microstrip isolator | |
| CN201340897Y (en) | TD-SCDMA surface mounted small-sized circulator | |
| CN211404700U (en) | Miniaturized waveguide circulator | |
| CN206727861U (en) | A kind of linear vibration electric motor | |
| CN203631709U (en) | Microstrip circulator and isolator assembly with magnetic shielding cover | |
| CN203659569U (en) | Wire-wound chip power inductor | |
| CN203085719U (en) | High-frequency micro-strip substrate type circulator | |
| CN107240492B (en) | A kind of amorphous alloy current transformer being easily assembled to | |
| CN202759005U (en) | Microstrip circulator | |
| CN203216971U (en) | Open-close type PCB hollow coil current sensor | |
| CN202749179U (en) | Novel soft magnetic ferrite core | |
| CN212380537U (en) | Stamping shell and surface-mounted circulator applying same | |
| CN103296362B (en) | A kind of cavity body structure of cover plate integrated microwave isolator | |
| CN201340898Y (en) | TD-SCDMA surface mounted circulator | |
| CN203631710U (en) | Two-stage microstrip isolator with magnetic shielding cover | |
| CN201732662U (en) | Magnetic shielding structure of transformer | |
| CN210136760U (en) | High-shielding circulator/isolator | |
| CN203674355U (en) | Microstrip circulator |
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: 20110928 Termination date: 20170218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |