CN201540943U - Small-size isolator for GSM communication system - Google Patents
Small-size isolator for GSM communication system Download PDFInfo
- Publication number
- CN201540943U CN201540943U CN2009202361812U CN200920236181U CN201540943U CN 201540943 U CN201540943 U CN 201540943U CN 2009202361812 U CN2009202361812 U CN 2009202361812U CN 200920236181 U CN200920236181 U CN 200920236181U CN 201540943 U CN201540943 U CN 201540943U
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- cavity
- communication system
- gsm communication
- ferrites
- center conductor
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- 238000004891 communication Methods 0.000 title claims abstract description 17
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 29
- 239000004020 conductor Substances 0.000 claims abstract description 23
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 7
- 239000007769 metal material Substances 0.000 claims description 3
- 238000003913 materials processing Methods 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract 1
- -1 polytetrafluoroethylene Polymers 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001234523 Velamen Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Non-Reversible Transmitting Devices (AREA)
- Microwave Amplifiers (AREA)
Abstract
The utility model provides a small-size isolator for GSM communication system. A central conductor is clamped between the two microwave ferrites. The two leads of the central conductor are introduced out of the chamber and the other lead connected with a patch load; a polytetrafluoroethylene dielectric ring is sleeved around the two ferrites to fix the ferrites in the center of the chamber; the magnetic disk is arranged on one side of the central conductor out of contact of the ferrites; the permanent magnet and the temperature compensation chip are orderly stacked in the microwave ferrites; the magnetic board as upper cover is fixed in the opening of the chamber; which is characterized in that the patch load is arranged on one side of the chamber. The external dimension of the chamber is 20mm multiplied by 20mm multiplied by 8.5mm. The small-size circulator has the specification suitable for GSM communication system, and has the advantages of good magnetic circuit closure, small magnetic leakage, small size, high integration and reliability, fine overall performance and easy assembly.
Description
Technical field
The miniature isolator that the utility model relates to a kind of GSM of being used for communication system is a kind of nonreciprocal electronic component, isolates and play the decoupling effect in measuring system in the input that transmits and receives system's rate of doing work amplifier, switching amplifier, output.
Background technology
Fig. 1 a is the schematic diagram of isolator; Fig. 1 b is the schematic diagram of three end circulators.Isolator is a two-port device, and to output b, the energy attenuation of transmission is less from input a for signal, and signal then is high decay from output b to input a, 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.Three end junction circulators are made up of central area and three transmission lines that are coupled with it that a ferrite loads, by 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 a port input can only be from the output of b port, and the electromagnetic wave of b port input can only be exported from the c port, and the electromagnetic wave of c port input can only be exported from a port.Isolator is to extend from three-port circulator, adds at one end that just matched load (load of little reflection termination) forms.
Circulator 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, and Fig. 2 a is that circulator is used for the duplex system structural representation, circulator and up band pass filter BPF
a, descending band pass filter BPF
bCombination, be used for emission-antenna-receiving system, this duplex system is the alien frequencies receive-transmit system, to be different from the Radar Technology ATR with duplexer frequently.
Fig. 2 b is the coupling and the decoupling schematic diagram of power amplifier inter-stage.In solid-state amplification system, the isolation between tandem formula amplifier stage is necessary, increases the stability of whole amplifier.
Fig. 2 c eliminates the phase mutual interference schematic diagram between the emission source, and it also is to lump together use with several bank of filters.Similar with above-mentioned inter-stage decoupling effect, difference is to be to eliminate alien frequencies to disturb here.
Fig. 2 d is two-in-one antenna transmission systems schematic diagram.The emission source of two different frequencies forms by 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.
The patent No. is that 2008200380918 utility model discloses the high intermodulation isolator of a kind of built-in smallization, comprising: cavity and microwave ferrite, center conductor, shield blade, permanent magnet and temperature-compensating sheet, even magnetic sheet, magnetic circuit plate.Center conductor is clipped in the middle of two microwave ferrites, wherein two lead-in wires of center conductor are introduced to outside the cavity, one velamen is welded on the load pad, shield blade, permanent magnet, temperature-compensating sheet and even magnetic sheet overlay on second microwave ferrite successively, another magnetic circuit plate is fixed on the opening part of cavity as loam cake, and described microwave ferrite is pure garnet G113 material, this kind material Curie temperature height, density height, temperature more easily compensate.But,, be necessary every technical indicator of isolator is further optimized for the miniature isolator that is applied to the GSM communication system because the size of microwave ferrite directly influences every performance of isolator.
The utility model content
At the deficiency that above-mentioned original technology exists, the purpose of this utility model be to overcome the deficiency that prior art exists and provide a kind of GSM of being applicable to communication system simple in structure, volume is little, be easy to assembling, the miniature isolator of debugging.
For solving the problems of the technologies described above, the utility model provides a kind of miniature isolator of the GSM of being used for communication system, comprise cavity and microwave ferrite, the PTFE medium ring, center conductor, the paster load, even magnetic sheet, permanent magnet, temperature-compensating sheet and magnetic circuit plate are formed, center conductor is clipped in the middle of two microwave ferrites, wherein two lead-in wires of center conductor are guided to outside the cavity, another root lead-in wire links to each other with the paster load, respectively overlap a PTFE medium ring around two ferrites, ferrite is fixed on the cavity center, even magnetic sheet is placed on the one side that ferrite does not contact center conductor, permanent magnet and temperature-compensating sheet overlay on the microwave ferrite successively, the magnetic circuit plate is fixed on the opening part of cavity as loam cake, it is characterized in that: described paster load is arranged at a side of cavity, and the profile size of described cavity is 20mm * 20mm * 8.5mm.
The aforesaid miniature isolator that is used for the GSM communication system is characterized in that: described center conductor is an electroplate, has effectively reduced the loss of device.
The aforesaid miniature isolator that is used for the GSM communication system is characterized in that: its cavity is made by magnetic metal material processing such as iron or steel.
The aforesaid miniature isolator that is used for the GSM communication system is characterized in that: have spiral on the described magnetic circuit plate, and being threaded in the cavity along the cavity hatch place.
The beneficial effect that the utility model reached:
Two lead-in wires of miniaturization circulator center conductor of the present utility model are guided to outside the cavity, use can directly link to each other with microstrip circuit, and concrete dimensions is applicable to the GSM communication system, compared with prior art, the magnetic circuit closure is good, leakage field is little, need not adhesive and screw, is easy to miniaturization, the integrated level height, the reliability height, the device overall performance is good, is easy to assembling.
Description of drawings
Fig. 1 a is the schematic diagram of isolator;
Fig. 1 b is the schematic diagram of three end circulators;
Fig. 2 a is that circulator is used for the duplex system structural representation;
Fig. 2 b is the coupling and the decoupling schematic diagram of power amplifier inter-stage;
Fig. 2 c eliminates the phase mutual interference schematic diagram between the emission source;
Fig. 2 d is two-in-one antenna transmission systems schematic diagram;
Fig. 3 is the structural representation of miniature isolator of the present utility model;
Fig. 4 is external form figure after the assembling of miniature isolator of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The utility model provides a kind of miniature isolator of the GSM of being used for communication system, comprise cavity 2 and microwave ferrite 3a, 3b, PTFE medium ring 10a, 10b, center conductor 4, paster load 1, even magnetic sheet 5, permanent magnet 6, temperature-compensating sheet 7 and magnetic circuit plate 8 are formed, center conductor 4 is clipped in the middle of two microwave ferrites, wherein two lead-in wires of center conductor 4 are guided to outside the cavity, another root lead-in wire links to each other with paster load 1, two ferrite 3a, respectively overlap a PTFE medium ring 10a around the 3b, 10b, ferrite is fixed on the cavity center, even magnetic sheet 5 is placed on the one side that ferrite does not contact center conductor, permanent magnet 6 and temperature-compensating sheet 7 overlay on the microwave ferrite successively, magnetic circuit plate 8 is fixed on the opening part of cavity as loam cake, it is characterized in that: described paster load 1 is arranged at a side of cavity 2, and the profile size of described cavity 2 is 20mm * 20mm * 8.5mm.Described center conductor 4 is an electroplate, has effectively reduced the loss of device.Its cavity 2 is made by magnetic metal material processing such as iron or steel.Have spiral on the described magnetic circuit plate 8, and being threaded in the cavity along cavity 2 opening parts.
Table 1 is the key technical indexes of the foregoing description:
Table 1
The foregoing description limits the utility model never in any form, and all employings are equal to the technical scheme that form obtained of replacement or equivalent transformation, all drop within the protection range of the present utility model.
Claims (4)
1. miniature isolator that is used for the GSM communication system, comprise cavity (2) and microwave ferrite (3a, 3b), PTFE medium ring (10a, 10b), center conductor (4), paster load (1), even magnetic sheet (5), permanent magnet (6), temperature-compensating sheet (7) and magnetic circuit plate (8) are formed, center conductor (4) is clipped in the middle of two microwave ferrites, wherein two lead-in wires of center conductor (4) are guided to outside the cavity, another root lead-in wire links to each other with paster load (1), two ferrite (3a, 3b) respectively overlap a PTFE medium ring (10a on every side, 10b), ferrite is fixed on the cavity center, even magnetic sheet (5) is placed on the one side that ferrite does not contact center conductor, permanent magnet (6) and temperature-compensating sheet (7) overlay on the microwave ferrite successively, magnetic circuit plate (8) is fixed on the opening part of cavity as loam cake, it is characterized in that: described paster load (1) is arranged at a side of cavity (2), and the profile size of described cavity (2) is 20mm * 20mm * 8.5mm.
2. the miniature isolator that is used for the GSM communication system according to claim 1 is characterized in that: described center conductor (4) is an electroplate.
3. the miniature isolator that is used for the GSM communication system according to claim 1 and 2 is characterized in that: its cavity is made by magnetic metal materials processing.
4. the miniature isolator that is used for the GSM communication system according to claim 1 and 2 is characterized in that: have spiral on the described magnetic circuit plate (8), and being threaded in the cavity along cavity (2) opening part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202361812U CN201540943U (en) | 2009-10-14 | 2009-10-14 | Small-size isolator for GSM communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202361812U CN201540943U (en) | 2009-10-14 | 2009-10-14 | Small-size isolator for GSM communication system |
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| Publication Number | Publication Date |
|---|---|
| CN201540943U true CN201540943U (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202361812U Expired - Fee Related CN201540943U (en) | 2009-10-14 | 2009-10-14 | Small-size isolator for GSM communication system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022607A (en) * | 2012-12-24 | 2013-04-03 | 南京广顺电子技术研究所 | Surface-mounted subminiaturized isolator |
| CN110571503A (en) * | 2019-11-05 | 2019-12-13 | 成都八九九科技有限公司 | A microstrip circulator, isolator and T/R component |
| CN110676548A (en) * | 2019-11-05 | 2020-01-10 | 成都八九九科技有限公司 | A microstrip circulator, isolator and T/R component |
| CN110767973A (en) * | 2019-11-05 | 2020-02-07 | 成都八九九科技有限公司 | A microstrip circulator, isolator and T/R component |
| CN112510332A (en) * | 2020-11-16 | 2021-03-16 | 无锡市高宇晟新材料科技有限公司 | Microwave ferrite circulator, isolator and mobile terminal |
| CN112531308A (en) * | 2020-11-30 | 2021-03-19 | 无锡市高宇晟新材料科技有限公司 | Isolator with PTFE piece |
-
2009
- 2009-10-14 CN CN2009202361812U patent/CN201540943U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103022607A (en) * | 2012-12-24 | 2013-04-03 | 南京广顺电子技术研究所 | Surface-mounted subminiaturized isolator |
| CN110571503A (en) * | 2019-11-05 | 2019-12-13 | 成都八九九科技有限公司 | A microstrip circulator, isolator and T/R component |
| CN110676548A (en) * | 2019-11-05 | 2020-01-10 | 成都八九九科技有限公司 | A microstrip circulator, isolator and T/R component |
| CN110571503B (en) * | 2019-11-05 | 2020-02-04 | 成都八九九科技有限公司 | Microstrip circulator, isolator and T/R assembly |
| CN110767973A (en) * | 2019-11-05 | 2020-02-07 | 成都八九九科技有限公司 | A microstrip circulator, isolator and T/R component |
| CN110676548B (en) * | 2019-11-05 | 2021-06-25 | 成都八九九科技有限公司 | A microstrip circulator, isolator and T/R component |
| CN112510332A (en) * | 2020-11-16 | 2021-03-16 | 无锡市高宇晟新材料科技有限公司 | Microwave ferrite circulator, isolator and mobile terminal |
| CN112531308A (en) * | 2020-11-30 | 2021-03-19 | 无锡市高宇晟新材料科技有限公司 | Isolator with PTFE piece |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20161014 |