CN201838699U - Miniature circulator for mobile communication base station - Google Patents
Miniature circulator for mobile communication base station Download PDFInfo
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- CN201838699U CN201838699U CN2010205162796U CN201020516279U CN201838699U CN 201838699 U CN201838699 U CN 201838699U CN 2010205162796 U CN2010205162796 U CN 2010205162796U CN 201020516279 U CN201020516279 U CN 201020516279U CN 201838699 U CN201838699 U CN 201838699U
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- cavity
- circulator
- base station
- mobile communication
- communication base
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Abstract
The utility model provides a miniature circulator for a mobile communication base station, comprising a cavity, two microwave ferrites, polytetrafluoroethylene medium rings, a central conductor, uniform magnetic sheets, permanent magnets, temperature compensation sheets and a magnetic circuit board, wherein the central conductor is clamped between the two microwave ferrites; three leads of the central conductor are led outside the cavity; the periphery of each microwave ferrite is sheathed with a polytetrafluoroethylene medium ring which fixes the microwave ferrite in the center of the cavity; one uniform magnetic sheet is placed on one surface of the microwave ferrite, which is not contacted with the central conductor; one permanent magnet and one temperature compensation sheet are stacked in sequence on each uniform magnetic sheet; the circuit board serves as an upper cover fixed at the opening of the cavity; and the outline size of the cavity is Phi 12.7mm*6.5mm. The benefits are as follows: the circulator enables the magnetic circuit to be closed well, leaks less magnetism, does not need adhesive or screws, and is easy for miniaturization, high in integration level and reliability, excellent in whole property and easy for assembly.
Description
Technical field
The utility model relates to and a kind ofly is used for the mobile communication base station to make the miniaturization circulator of adequate and systematic service be 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 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 utility model content
The purpose of this utility model be to provide a kind of be applicable to the mobile communication base station do adequate and systematic service simple in structure, volume is little, be easy to assembling, the miniaturization circulator of debugging.
For achieving the above object, the utility model is provided for the miniaturization circulator of mobile communication base station, comprise cavity and microwave ferrite, the PTFE medium ring, center conductor, 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, three lead-in wires of center conductor are guided to outside the cavity, 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 even magnetic sheet successively, the magnetic circuit plate is fixed on the opening part of cavity as loam cake, and the profile size of described cavity is Φ 12.7mmx6.5mm.
The miniaturization circulator that is used for the mobile communication base station described in the utility model wherein, is drawn end points for three of described center conductor and is guided to outside three ports of cavity with the direction of 120 ° of spaces, and weld mutually with capillary.
The miniaturization circulator that is used for the mobile communication base station described in the utility model, wherein, described center conductor electroplate.
The miniaturization circulator that is used for the mobile communication base station described in the utility model, wherein, its cavity is integrated.
The miniaturization circulator that is used for the mobile communication base station described in the utility model wherein, has 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:
Three lead-in wires of miniaturization circulator center conductor of the present utility model are guided to outside the cavity, and weld with capillary, can directly link to each other with microstrip circuit during use, concrete dimensions is applicable to the mobile communication base station, compared with prior art, the magnetic circuit closure is good, and leakage field is little, need not adhesive and screw, be easy to miniaturization, integrated level height, 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 two-in-one antenna transmission systems schematic diagram;
Fig. 3 a is the structural representation of miniature isolator of the present utility model;
Fig. 4 b is the exploded view of Fig. 3 a.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The utility model provides a kind of miniaturization circulator of the TD-SCDMA of being used for communication system, mainly by cavity 1 and microwave ferrite 3a, 3b, and PTFE medium ring 2a, 2b, center conductor 4, even magnetic sheet 6, temperature-compensating sheet 8, permanent magnet 7, capillary 5a, 5b, 5c and magnetic circuit plate 9 are formed.Cavity 1 is integrated, and the electroplate of center conductor 4 has effectively reduced the loss of device.Center conductor 4 is clipped in the middle of two microwave ferrite 3a, the 3b, draws end points for three of center conductor 4 and guides to outside 1 three ports of cavity with the direction of space 120 degree, and weld mutually with capillary 5a, 5b, 5c.Respectively overlap a slice PTFE medium ring 2a, 2b around ferrite 3a, the 3b, ferrite 3a, 3b are fixed on cavity 1 center.Even magnetic sheet 6 is placed on the one side that ferrite 3a, 3b do not contact center conductor 4.Permanent magnet 7 overlays on the even magnetic sheet 6 for ferrite 3a, 3b provide bias magnetic field.Temperature-compensating sheet 8 places on the permanent magnet 7, plays temperature-compensating.Have spiral on the magnetic circuit plate 9, and being threaded in the cavity 1 and being fixed on the opening part of cavity 1 as loam cake along cavity 1 opening part.
Its key technical indexes is:
Frequency range: 2560-2630MHz
Forward loss :≤0.3dB
Reverse loss: 〉=23dB
Standing-wave ratio: SP1, SP2≤1.15, SP3≤1.25
Temperature range :-40 ℃-+85 ℃
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 (5)
1. miniaturization circulator that is used for the mobile communication base station, comprise cavity (1) and microwave ferrite (3a, 3b), PTFE medium ring (2a, 2b), center conductor (4), even magnetic sheet (6), permanent magnet (7), temperature-compensating sheet (8) and magnetic circuit plate (9), center conductor (4) is clipped in two microwave ferrite (3a, 3b), three lead-in wires of center conductor (4) are guided to outside the cavity, two microwave ferrite (3a, 3b) respectively overlap a PTFE medium ring (2a on every side, 2b), with microwave ferrite (3a, 3b) be fixed on cavity (1) center, even magnetic sheet (6) is placed on the one side that ferrite does not contact center conductor, permanent magnet (7) and temperature-compensating sheet (8) overlay on the even magnetic sheet successively, magnetic circuit plate (9) is fixed on the opening part of cavity as loam cake, it is characterized in that: the profile size of described cavity (1) is Φ 12.7mmx6.5mm.
2. the miniaturization circulator that is used for the mobile communication base station according to claim 1, it is characterized in that: draw end points for three of described center conductor and guide to outside three ports of cavity, and weld mutually with capillary (5a, 5b, 5c) with the direction of 120 ° of spaces.
3. the miniaturization circulator that is used for the mobile communication base station according to claim 1 is characterized in that: described center conductor (4) electroplate.
4. the miniaturization circulator that is used for the mobile communication base station according to claim 1 and 2 is characterized in that: its cavity (1) is integrated.
5. the miniaturization circulator that is used for the mobile communication base station according to claim 1 and 2 is characterized in that: have spiral on the described magnetic circuit plate (9), and being threaded in the cavity along cavity (1) opening part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205162796U CN201838699U (en) | 2010-09-02 | 2010-09-02 | Miniature circulator for mobile communication base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205162796U CN201838699U (en) | 2010-09-02 | 2010-09-02 | Miniature circulator for mobile communication base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201838699U true CN201838699U (en) | 2011-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205162796U Expired - Fee Related CN201838699U (en) | 2010-09-02 | 2010-09-02 | Miniature circulator for mobile communication base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201838699U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790251A (en) * | 2012-08-08 | 2012-11-21 | 南京广顺微波技术有限公司 | Welding needle for surface-mounted radio frequency isolator and annular device |
| CN105932384A (en) * | 2015-02-27 | 2016-09-07 | Tdk株式会社 | Non-reciprocal Circuit Device And Communication Apparatus Using The Same |
| CN111755788A (en) * | 2020-07-01 | 2020-10-09 | 北京航天微电科技有限公司 | Circulator |
-
2010
- 2010-09-02 CN CN2010205162796U patent/CN201838699U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790251A (en) * | 2012-08-08 | 2012-11-21 | 南京广顺微波技术有限公司 | Welding needle for surface-mounted radio frequency isolator and annular device |
| CN105932384A (en) * | 2015-02-27 | 2016-09-07 | Tdk株式会社 | Non-reciprocal Circuit Device And Communication Apparatus Using The Same |
| CN105932384B (en) * | 2015-02-27 | 2019-03-05 | Tdk株式会社 | Irreversible circuit element and the communication device for using it |
| CN111755788A (en) * | 2020-07-01 | 2020-10-09 | 北京航天微电科技有限公司 | Circulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 210014, No. three, No. seven, Tangshan industrial concentration area, Tangshan District, Jiangsu, Nanjing, Jiangning Patentee after: Nanjing Guangshun Electronic Technology Institute Address before: 210014 Jiangsu Province, Nanjing City Guanghua Road No. 1 South China Science and Technology Park Incubator Building 3 floor Patentee before: Nanjing Guangshun Electronic Technology Institute |
|
| 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: 20110518 Termination date: 20170902 |