CN203103472U - Circular-polarization C-frequency-range two-port duplexer - Google Patents
Circular-polarization C-frequency-range two-port duplexer Download PDFInfo
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- CN203103472U CN203103472U CN 201320107852 CN201320107852U CN203103472U CN 203103472 U CN203103472 U CN 203103472U CN 201320107852 CN201320107852 CN 201320107852 CN 201320107852 U CN201320107852 U CN 201320107852U CN 203103472 U CN203103472 U CN 203103472U
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Abstract
The utility model discloses a circular-polarization C-frequency-range two-port duplexer which comprises a three-port orthomode coupler, wherein the first port of the three-port orthomode coupler is connected with an orthogonal isolation absorber; the orthogonal isolation absorber is connected with an absorbing load and a duplexer transmitting port; the second port of the three-port orthomode coupler is connected with a band reject filter; the band reject filter is connected with an H-sided arc bent waveguide by a closing-in transition device; the H-sided arc bent waveguide is connected with a duplexer receiving port; the third port of the three-port orthomode coupler is connected with a polarizer by a first rectangular-circular transition device; the polarizer is connected with a second rectangular-circular transition device; and the second rectangular-circular transition device is connected with a common antenna port. The circular-polarization C-frequency-range two-port duplexer is simple in structure, reasonable in design, small in size, small in voltage standing wave ratio and good in use effect, is general around the world, widens polarization application, ensures an excellent electrical property, and realizes transmitting and receiving isolation, thus being favorable to popularization and use.
Description
Technical field
The utility model belongs to communication apparatus technical field, especially relates to a kind of circular polarization C frequency range two-port duplexer.
Background technology
In existing satellite communication system, commercial satellite C frequency range upstream frequency is 5.925GHz～6.425GHz, and downstream frequency is 3.7GHz～4.2GHz, and its bandwidth has only 500MHZ, can't satisfy the satellite client to the satellite bandwidth demand at all, cause the satellite resource scarcity.Along with Evolution of Satellite Communication Techniques, satellite C frequency range upstream frequency expands to 5.85GHz～6.725GHz, if it is multiplexing to add the orthogonal polarization of C frequency range basis, upstream bandwidth has also improved.Band downlink expands to 3.4GHz～4.2GHz, and frequency resource is utilized effectively, and makes bandwidth reach 875MHZ, has reached dilatation truly, and can effectively improve the crowded and interference on the present primary band.And the duplexer of standard C frequency range can not satisfy the demand of communicating by letter after the dilatation, mainly comprises: 1, frequency can not satisfy; 2, the transmitting-receiving polarization can not be satisfied; 3, bandwidth is not enough.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of circular polarization C frequency range two-port duplexer is provided, and it is simple in structure, and is reasonable in design, volume is little, be common to all over the world, not only widened polarization applications, and guaranteed excellent electric performance, voltage standing wave ratio is little, transmitting-receiving is isolated, and result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of circular polarization C frequency range two-port duplexer, it is characterized in that: comprise three port orthomode couplers, be connected with quadrature separate absorption device on first port of described three port orthomode couplers, be connected with absorbing load and the duplexer emission port that is used to be connected transmitter on the described quadrature separate absorption device, be connected with on second port of described three port orthomode couplers and send out the resistance filter, be connected with the waveguide of H face arc bend by the closing in transition on described the resistance filter, be connected with the duplexer receiving port that is used to connect receiver in the waveguide of described H face arc bend, be connected with polarizer by the first moment round transition device on the 3rd port of described three port orthomode couplers, be connected with the second moment round transition device on the described polarizer, be connected with common antenna port on the described second moment round transition device.
Above-mentioned circular polarization C frequency range two-port duplexer is characterized in that: the rectangle standard flange interface that described duplexer emission port is the CPR137F model.
Above-mentioned circular polarization C frequency range two-port duplexer is characterized in that: the rectangle standard flange interface that described duplexer receiving port is the CPR229F model.
Above-mentioned circular polarization C frequency range two-port duplexer is characterized in that: the circular interface of the described first moment round transition device is connected with the 3rd port of described three port orthomode couplers, and the rectangle interface of the described first moment round transition device is connected with described polarizer.
Above-mentioned circular polarization C frequency range two-port duplexer, it is characterized in that: the rectangle interface of the described second moment round transition device is connected with described polarizer, and the circular interface of the described second moment round transition device is connected with described common antenna port.
Above-mentioned circular polarization C frequency range two-port duplexer, it is characterized in that: described common antenna port is the circular flange interface.
Above-mentioned circular polarization C frequency range two-port duplexer, it is characterized in that: described resistance filter is the low pass filter of cavity body structure.
The utility model compared with prior art has the following advantages:
1, the utility model is according to the Demand Design of Arab Satellite Communications Organization (ARABSAT), standard C frequency range duplexer different from the past above frequency not only, and the polarization applications aspect is also different, untapped frequency range has obtained utilization in the C frequency range thereby make, from truly having expanded C frequency range uplink band and band downlink.
2, the utility model has not only been widened polarization applications, has realized the super bandwidth of C-band 875M, and has guaranteed excellent electric performance, has realized the port isolation greater than 85dB, and has reduced cost, and is simple in structure, reasonable in design.
3, the utility model send out the resistance filter be the low pass filter of cavity body structure, the three port orthomode couplers that adopt, not only can satisfy circular polarization, can guarantee the high-power emission of antenna again, and realized effective transmitting-receiving isolation, the overall test voltage standing wave ratio has the little characteristics of voltage standing wave ratio less than 1.3.
4, the utility model duplexer emission port is the rectangle standard flange interface of CPR137F model, and the duplexer receiving port is the rectangle standard flange interface of CPR229F model, be common to all over the world, and volume is little, and result of use is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, and is reasonable in design, and volume is little, is common to all over the world, not only widened polarization applications, and guaranteed excellent electric performance, and voltage standing wave ratio is little, and transmitting-receiving is isolated, and result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Description of reference numerals:
1-three port orthomode couplers; 2-quadrature separate absorption device; 3-absorbing load;
4-duplexer emission port; A 5-resistance filter; 6-closing in transition;
The waveguide of 7-H face arc bend; 8-duplexer receiving port; 9-the first moment round transition device;
10-polarizer; 11-the second moment round transition device; 12-common antenna port.
Embodiment
As shown in Figure 1, the utility model comprises three port orthomode couplers 1, be connected with quadrature separate absorption device 2 on first port of described three port orthomode couplers 1, be connected with absorbing load 3 and the duplexer emission port 4 that is used to be connected transmitter on the described quadrature separate absorption device 2, be connected with on second port of described three port orthomode couplers 1 and send out resistance filter 5, be connected with H face arc bend waveguide 7 by closing in transition 6 on described the resistance filter 5, be connected with the duplexer receiving port 8 that is used to connect receiver in the described H face arc bend waveguide 7, be connected with polarizer 10 by the first moment round transition device 9 on the 3rd port of described three port orthomode couplers 1, be connected with the second moment round transition device 11 on the described polarizer 10, be connected with common antenna port 12 on the described second moment round transition device 11.
As shown in Figure 1, in the present embodiment, the rectangle standard flange interface that described duplexer emission port 4 is the CPR137F model.The rectangle standard flange interface that described duplexer receiving port 8 is the CPR229F model.The circular interface of the described first moment round transition device 9 is connected with the 3rd port of described three port orthomode couplers 1, and the rectangle interface of the described first moment round transition device 9 is connected with described polarizer 10.The rectangle interface of the described second moment round transition device 11 is connected with described polarizer 10, and the circular interface of the described second moment round transition device 11 is connected with described common antenna port 12.Described common antenna port 12 is the circular flange interface.Described resistance filter 5 is the low pass filter of cavity body structure.
During concrete enforcement, described three port orthomode couplers 1, quadrature separate absorption device 2, absorbing load 3, a resistance filter 5, closing in transition 6, H face arc bend waveguide 7, the first moment round transition device 9, polarizer 10 and the second moment round transition device 11 are the copper material device; The power upper limit of described polarizer 10 is 1000W.Regulate by the cavity length of the low pass filter of the size of described polarizer 10 and described cavity body structure is done to change slightly, can realize that just C frequency range upstream frequency expands to the C frequency range duplexer that 5.85GHz～6.725GHz, band downlink expand to 3.4GHz～4.2GHz.
The course of work of the present utility model is: transmit be input in the quadrature separate absorption device 2 via duplexer emission port 4 after, at first enter into three port orthomode couplers 1, enter into polarizer 10 by the first moment round transition device 9 then, arrive common antenna port 12 by the second moment round transition device 11 at last, like this, transmit and just send to transmitter via common antenna port 12; Wherein, transmit when arriving polarizer 10, polarizer 10 meeting antireflection part microwaves, microwave arrives absorbing loads 3 via the first moment round transition device 9, three port orthomode couplers 1 and quadrature separate absorption device 2 successively, and absorbing load 3 is used to absorb the microwave of polarizer 10 reflections; And received signal at first is input in the polarizer 10 via the common antenna port 12 and the second moment round transition device 11, then enter into three port orthomode couplers 1 by the first moment round transition device 9, arrive duplexer receiving ports 8 via sending out resistance filter 5, closing in transition 6 and arriving H face arc bend waveguide 7 successively then, like this, received signal is just sent to receiver via duplexer receiving port 8, so just realized transmitting and the isolation of received signal, guaranteed to receive and emission operate as normal simultaneously.Measured result shows that the utility model can be realized the port isolation greater than 85dB, and voltage standing wave ratio is less than 1.3, the emission port axial ratio is 0.75dB, and the receiving port axial ratio is 2dB, can guarantee to receive and dispatch orthogonal polarization, the high-power emission of antenna can also be guaranteed, and the transmitting-receiving isolation can be realized effectively realizing.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection range of technical solutions of the utility model according to the utility model technical spirit.
Claims (7)
1. circular polarization C frequency range two-port duplexer, it is characterized in that: comprise three port orthomode couplers (1), be connected with quadrature separate absorption device (2) on first port of described three port orthomode couplers (1), be connected with absorbing load (3) and the duplexer emission port (4) that is used to be connected transmitter on the described quadrature separate absorption device (2), be connected with on second port of described three port orthomode couplers (1) and send out resistance filter (5), described resistance filter (5) gone up and is connected with H face arc bend waveguide (7) by closing in transition (6), be connected with the duplexer receiving port (8) that is used to connect receiver in the described H face arc bend waveguide (7), be connected with polarizer (10) by the first moment round transition device (9) on the 3rd port of described three port orthomode couplers (1), be connected with the second moment round transition device (11) on the described polarizer (10), be connected with common antenna port (12) on the described second moment round transition device (11).
2. according to the described circular polarization C frequency range of claim 1 two-port duplexer, it is characterized in that: described duplexer emission port (4) is the rectangle standard flange interface of CPR137F model.
3. according to the described circular polarization C frequency range of claim 1 two-port duplexer, it is characterized in that: described duplexer receiving port (8) is the rectangle standard flange interface of CPR229F model.
4. according to the described circular polarization C frequency range of claim 1 two-port duplexer, it is characterized in that: the circular interface of the described first moment round transition device (9) is connected with the 3rd port of described three port orthomode couplers (1), and the rectangle interface of the described first moment round transition device (9) is connected with described polarizer (10).
5. according to the described circular polarization C frequency range of claim 1 two-port duplexer, it is characterized in that: the rectangle interface of the described second moment round transition device (11) is connected with described polarizer (10), and the circular interface of the described second moment round transition device (11) is connected with described common antenna port (12).
6. according to the described circular polarization C frequency range of claim 5 two-port duplexer, it is characterized in that: described common antenna port (12) is the circular flange interface.
7. according to the described circular polarization C frequency range of claim 1 two-port duplexer, it is characterized in that: described resistance filter (5) is the low pass filter of cavity body structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107852 CN203103472U (en) | 2013-03-11 | 2013-03-11 | Circular-polarization C-frequency-range two-port duplexer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320107852 CN203103472U (en) | 2013-03-11 | 2013-03-11 | Circular-polarization C-frequency-range two-port duplexer |
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| CN203103472U true CN203103472U (en) | 2013-07-31 |
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| CN 201320107852 Expired - Fee Related CN203103472U (en) | 2013-03-11 | 2013-03-11 | Circular-polarization C-frequency-range two-port duplexer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289468A (en) * | 2019-07-31 | 2019-09-27 | 成都玄石卫讯科技有限公司 | A kind of novel duplexer |
| CN110416665A (en) * | 2019-08-05 | 2019-11-05 | 成都菲斯洛克电子技术有限公司 | High-power bending waveguide |
| CN113036321A (en) * | 2021-03-12 | 2021-06-25 | 中国科学院新疆天文台 | Broadband waveguide orthogonal mode coupler used for radio astronomical receiver based on Turntile structure |
| CN114649663A (en) * | 2022-04-21 | 2022-06-21 | 南京道旭通信有限公司 | High-isolation waveguide orthogonal mode coupling assembly with continuously adjustable polarization |
-
2013
- 2013-03-11 CN CN 201320107852 patent/CN203103472U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289468A (en) * | 2019-07-31 | 2019-09-27 | 成都玄石卫讯科技有限公司 | A kind of novel duplexer |
| CN110289468B (en) * | 2019-07-31 | 2024-01-30 | 成都玄石卫讯科技有限公司 | Novel duplexer |
| CN110416665A (en) * | 2019-08-05 | 2019-11-05 | 成都菲斯洛克电子技术有限公司 | High-power bending waveguide |
| CN113036321A (en) * | 2021-03-12 | 2021-06-25 | 中国科学院新疆天文台 | Broadband waveguide orthogonal mode coupler used for radio astronomical receiver based on Turntile structure |
| CN114649663A (en) * | 2022-04-21 | 2022-06-21 | 南京道旭通信有限公司 | High-isolation waveguide orthogonal mode coupling assembly with continuously adjustable polarization |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 2, building 12003, Jinqiao International Plaza, hi tech Zone, Xi'an, Shaanxi, China, 710075 Patentee after: Shaanxi was a Polytron Technologies Inc Address before: 710075 Shaanxi high tech Zone, Xi'an science and technology road, Jinqiao International C, room 2003, room 50 Patentee before: Shaanxi Evsat Technology Development Co., Ltd. |
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| 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: 20130731 Termination date: 20210311 |