CN207149677U - A kind of mating structure of microstrip isolator and transmission line - Google Patents
A kind of mating structure of microstrip isolator and transmission line Download PDFInfo
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- CN207149677U CN207149677U CN201720992052.0U CN201720992052U CN207149677U CN 207149677 U CN207149677 U CN 207149677U CN 201720992052 U CN201720992052 U CN 201720992052U CN 207149677 U CN207149677 U CN 207149677U
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- microstrip
- transmission line
- mating structure
- circuit
- dielectric
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Abstract
The utility model discloses the mating structure of a kind of microstrip isolator and transmission line.It includes bottom plate（1）, in the bottom plate（1）On be provided with ferrite gyromagnet（3）, ferrite gyromagnet（3）Including one and bottom plate（1）Contact surface and a circuit face, microstrip circuit is provided with circuit face（5）, permanent magnet（6）, dielectric（4）With microstrip line cable（2）, permanent magnet（6）Pass through dielectric（4）With the microstrip circuit（5）Connection, microstrip line cable（2）For matched transmission line；With including resistance（7）, resistance（7）With the microstrip circuit（5）Connection.The utility model replaces part ferrite gyromagnet using micro-strip transmission cable, reduces transmission loss, increases the degree of coupling between transmission line and isolator, reduce device volume, reduce transmission loss, improves the service behaviour of microstrip isolator.
Description
Technical field
It the utility model is related to frequency microwave technology, more particularly to the mating structure of a kind of microstrip isolator and transmission line.
Background technology
Circulator is a kind of by incident electromagnetic wave, and the multiport device of next port, energy are passed to according to specific direction
Enough one-way transmission higher frequency signal energies, this has good application in isolator.
The application is related to frequency microwave technology, and frequency can cover 0.5GHz-40GHz, and it is used in microstrip isolator with passing
On the matched design of defeated line.In the prior art, microstrip isolator is complicated with transmission line matched design shortcoming, volume compared with
Greatly, it is not suitable with the growth requirement of miniaturized electronic device.
Prior art carries out microstrip isolator transmission matching using co-planar waveguide circuit, because transmission line is longer, and iron oxygen
The dielectric constant of body gyromagnet is larger, causes transmission loss very big, and because the influence that the Kelvin effect of electric signal transmission acts on,
Signal can scatter to surrounding, cause electric signal meeting crosstalk between circuit, form signal interference, cause the electric signal coupling between circuit
Close also more serious.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of of microstrip isolator and transmission line
Distribution structure, part ferrite gyromagnet is replaced using micro-strip cable, transmission loss, and increase transmission line can be reduced greatly with isolating
The degree of coupling between device, improve the service behaviour of microstrip isolator.
The purpose of this utility model is achieved through the following technical solutions：A kind of of microstrip isolator and transmission line
Distribution structure, including bottom plate, it is characterised in that：Ferrite gyromagnet is provided with the bottom plate, described ferrite gyromagnet includes
One with the contact surface of bottom plate and a circuit face, microstrip circuit, permanent magnet, dielectric are provided with described circuit face
With microstrip line cable, described permanent magnet is connected by dielectric with the microstrip circuit, and described microstrip line cable is used for
Matched transmission line；It is connected with including resistance, described resistance with the microstrip circuit.
Described microstrip line cable includes signal transmitting layer, dielectric layer and signal shielding layer, by described signal transmitting layer
Start, from inside to outside, set gradually dielectric layer and the signal shielding layer.
Described signal transmitting layer includes copper core.
Described dielectric layer includes the dielectric layer of polytetrafluoroethylene (PTFE) material.
Described signal shielding layer includes copper pipe.
Described microstrip line cable is used for matched transmission line, including for matching the transmission line of 50 Ω ports.
Described dielectric includes ceramic substrate.
Described permanent magnet includes cylindrical permanent magnet.
The beneficial effects of the utility model are：
（1）The utility model replaces part ferrite gyromagnet using micro-strip transmission cable, reduces transmission loss, Yi Jizeng
The big degree of coupling between transmission line and isolator, improve the service behaviour of microstrip isolator.
（2）The utility model does not use in traditional design and carries out microstrip isolator transmission matching using co-planar waveguide circuit
Technology, do not influence to reduce device volume on the premise of electrical performance characteristics, and on the premise of signal transmission quality is not influenceed
Transmission loss is reduced, improves the service behaviour of device.
（3）The utility model can largely avoid the signal cross-talk between circuit, effectively prevent signal interference,
The electric signal coupling between circuit is alleviated, improves the electrical property of microstrip isolator.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model.
In figure, 1- bottom plates, 2- microstrip line cables, 3- ferrite gyromagnets, 4- dielectrics, 5- microstrip circuits, 6- permanent magnets,
7- resistance.
Embodiment
The technical solution of the utility model, but the scope of protection of the utility model are described in further detail below in conjunction with the accompanying drawings
It is not limited to as described below.
【Embodiment one】
As shown in figure 1, the mating structure of a kind of microstrip isolator and transmission line, including bottom plate 1, it is characterised in that：Institute
State and ferrite gyromagnet 3 is provided with bottom plate 1, described ferrite gyromagnet 3 includes one and the contact surface of bottom plate 1 and a circuit
Face, microstrip circuit 5, permanent magnet 6, dielectric 4 and microstrip line cable 2, described permanent magnetism are provided with described circuit face
Body 6 is connected by dielectric 4 with the microstrip circuit 5, and described microstrip line cable 2 is used for matched transmission line；With including electricity
Resistance 7, described resistance 7 is connected with the microstrip circuit 5.
Described microstrip line cable 2 includes signal transmitting layer, dielectric layer and signal shielding layer, by described signal transmitting layer
Start, from inside to outside, set gradually dielectric layer and the signal shielding layer.
Described signal transmitting layer includes copper core.
Described dielectric layer includes the dielectric layer of polytetrafluoroethylene (PTFE) material.
Described signal shielding layer includes copper pipe.
Described microstrip line cable 2 is used for matched transmission line, including for matching the transmission line of 50 Ω ports.
Described dielectric 4 includes ceramic substrate.
Described permanent magnet 6 includes cylindrical permanent magnet.
The operation principle of embodiment one of the present utility model is：Microstrip isolator is according to farad effect, by permanent magnetism
Body is placed in the circuit face of ferrite gyromagnet, in the presence of making applying constant external magnetic field, makes what the microwave telecommunication number of transmission polarized
Rotation, the transmission direction for making electric signal transmission want to people, and 50 Ω transmission lines can be designed outside circuit, and transmission line
Insertion loss is as far as possible small, and the influence between isolator is as far as possible small, and the degree of coupling is as far as possible big.
The utility model replaces part ferrite gyromagnet using micro-strip transmission cable, reduces transmission loss, and increase
The degree of coupling between transmission line and isolator, improve the service behaviour of microstrip isolator.Due to not using traditional design
The middle technology that microstrip isolator transmission matching is carried out using co-planar waveguide circuit, does not influence to reduce on the premise of electrical performance characteristics
Device volume, and transmission loss is reduced on the premise of signal transmission quality is not influenceed, improve the service behaviour of device.Can
Largely to avoid the signal cross-talk between circuit, signal interference is effectively prevented, alleviates the electric signal between circuit
Coupling, improve the electrical property of microstrip isolator.
Described above is only preferred embodiment of the present utility model, it should be understood that the utility model is not limited to herein
Disclosed form, the exclusion to other embodiment is not to be taken as, and can be used for various other combinations, modification and environment, and
It can be modified in contemplated scope described herein by the technology or knowledge of above-mentioned teaching or association area.And this area
The change and change that personnel are carried out do not depart from spirit and scope of the present utility model, then all should be in right appended by the utility model
It is required that protection domain in.
Claims (8)
1. the mating structure of a kind of microstrip isolator and transmission line, including bottom plate（1）, it is characterised in that：In the bottom plate（1）On
It is provided with ferrite gyromagnet（3）, described ferrite gyromagnet（3）Including one and bottom plate（1）Contact surface and a circuit face,
Microstrip circuit is provided with described circuit face（5）, permanent magnet（6）, dielectric（4）With microstrip line cable（2）, it is described
Permanent magnet（6）Pass through dielectric（4）With the microstrip circuit（5）Connection, described microstrip line cable（2）For matching transmission
Line；With including resistance（7）, described resistance（7）With the microstrip circuit（5）Connection.
2. the mating structure of a kind of microstrip isolator according to claim 1 and transmission line, it is characterised in that：Described is micro-
Band line cable（2）Including signal transmitting layer, dielectric layer and signal shielding layer, by described signal transmitting layer, from inside to outside,
Set gradually dielectric layer and the signal shielding layer.
3. the mating structure of a kind of microstrip isolator according to claim 2 and transmission line, it is characterised in that：Described letter
Number transport layer includes copper core.
4. the mating structure of a kind of microstrip isolator and transmission line according to Claims 2 or 3, it is characterised in that：It is described
Dielectric layer include the dielectric layer of polytetrafluoroethylene (PTFE) material.
5. the mating structure of a kind of microstrip isolator according to claim 4 and transmission line, it is characterised in that：Described letter
Number screen layer includes copper pipe.
6. the mating structure of a kind of microstrip isolator according to claim 1 and transmission line, it is characterised in that：Described is micro-
Band line cable（2）For matched transmission line, including for matching the transmission line of 50 Ω ports.
7. the mating structure of a kind of microstrip isolator according to claim 1 and transmission line, it is characterised in that：Described is exhausted
Edge medium（4）Including ceramic substrate.
8. the mating structure of a kind of microstrip isolator according to claim 1 and transmission line, it is characterised in that：It is described forever
Magnet（6）Including cylindrical permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992052.0U CN207149677U (en) | 2017-08-09 | 2017-08-09 | A kind of mating structure of microstrip isolator and transmission line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992052.0U CN207149677U (en) | 2017-08-09 | 2017-08-09 | A kind of mating structure of microstrip isolator and transmission line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207149677U true CN207149677U (en) | 2018-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720992052.0U Expired - Fee Related CN207149677U (en) | 2017-08-09 | 2017-08-09 | A kind of mating structure of microstrip isolator and transmission line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207149677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416680A (en) * | 2019-07-20 | 2019-11-05 | 中国船舶重工集团公司第七二四研究所 | A kind of half coaxial microband combined radio frequency transmission line structure |
| CN110911784A (en) * | 2019-12-17 | 2020-03-24 | 北京无线电测量研究所 | Micro-strip ferrite microwave switch |
-
2017
- 2017-08-09 CN CN201720992052.0U patent/CN207149677U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416680A (en) * | 2019-07-20 | 2019-11-05 | 中国船舶重工集团公司第七二四研究所 | A kind of half coaxial microband combined radio frequency transmission line structure |
| CN110416680B (en) * | 2019-07-20 | 2021-08-06 | 中国船舶重工集团公司第七二四研究所 | Semi-coaxial microstrip combined radio frequency transmission line structure |
| CN110911784A (en) * | 2019-12-17 | 2020-03-24 | 北京无线电测量研究所 | Micro-strip ferrite microwave switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180327 Termination date: 20210809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |