CN202872782U - Improved circular polarization tuner of probe and dielectric polarization phase shift sheet - Google Patents
Improved circular polarization tuner of probe and dielectric polarization phase shift sheet Download PDFInfo
- Publication number
- CN202872782U CN202872782U CN 201220566256 CN201220566256U CN202872782U CN 202872782 U CN202872782 U CN 202872782U CN 201220566256 CN201220566256 CN 201220566256 CN 201220566256 U CN201220566256 U CN 201220566256U CN 202872782 U CN202872782 U CN 202872782U
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- polarization
- probe
- circuit board
- tuner
- dielectric
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- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Waveguide Aerials (AREA)
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
Abstract
An improved circular polarization tuner of probes and a dielectric polarization phase shift sheet comprises a feed source, a guided wave cylinder and a circuit board box which are sequentially connected, wherein the feed source and the guided wave cylinder are in a cylindrical form; and a circuit board is disposed inside the circuit board box. One end of the circuit board is connected with a coaxial cable head. A dielectric polarization phase shift sheet is disposed inside the feed source. A left-handed polarization probe and a right-handed polarization probe are symmetrically disposed on the circuit board. According to the circular polarization tuner, no artificial welding of the probes is needed, no artificial plug-in mounting is needed for the dielectric polarization phase shift sheet in the feed source is needed, no artificial glue dispensing on the dielectric polarization phase shift sheet is needed for simplifying the process, and thus the cost of materials is saved, the process is simple, the quality is stable and the sensitivity is high.
Description
Technical field
The utility model relates to satellite broadcasting television and satellite communication field, is specially a kind of circular polarization tuner that improves probe and dielectric polarization phase plate.
Background technology
General satellite television receiving system mainly comprises: antenna, feed, low noise block downconverter (being also referred to as tuner), cable, clamped nipple, satellite receiver, television receiver.Along with the development of China's radio and television and the all-round popularization of wideband direct broadcast satellite TV, need in the market a large amount of tuners.The effect of tuner is that the small-signal that antenna is received is amplified, and amplify output after the signal of C frequency range 3.4 ~ 4.2GHz, Ku frequency range 10.70 ~ 12.75GHz being down-converted to 950 ~ 1750 MHz, 950 ~ 2150 MHz frequency ranges respectively, be sent to satellite television receiver with coaxial cable, satellite television receiver carries out demodulation with the satellite-signal that tuner transports, and demodulates satellite image signal and audio signal.All satellite low noise blocks can be divided into according to polarization mode at present: linear polarization, circular polarization, single polarization, dual polarization tuner.Can be divided into again C-band, Ku wave band and KA wave band tuner according to application band.
The circular polarization tuner in recent years at home market a large amount of demands is arranged, this type of polarization tuner main advantage is: adopt circular polarization mode and conventional linear polarization not to coexist and can effectively avoid the interference of other satellite-signals on the transmission means.The circular polarization tuner is installed and used the aspect need not adjust polarizing angle, greatly reduces installation difficulty, has the simple advantage of installation.Owing to have above-mentioned advantage, extensively adopted by people in recent years, but be subjected to the signal isolation height design Bottleneck Restrictions of this circular polarization tuner, popular circular polarization tuner in the market, all use the linear polarization high frequency in feed, to plug the dielectric polarization phase plate, this dielectric polarization phase plate and polarization probe need artificial welding, consistency is poor, polarization isolation is poor, complex process, can not satisfy gradually people probe design is reached dielectric polarization phase plate in the feed and the demand of shell one in the circuit board.
The utility model content
The technical problem that the utility model solves is to provide a kind of circular polarization tuner that improves probe and dielectric polarization phase plate, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solves realizes by the following technical solutions:
A kind of circular polarization tuner that improves probe and dielectric polarization phase plate comprises the feed, guided wave cylinder and the circuit board box that connect successively, and described feed and guided wave cylinder are cylindrical, are provided with circuit board in the described circuit board box.One end of described circuit board is connected with the coaxial electrical cable end, is provided with in the described feed and the integrated dielectric polarization phase plate of shell, is symmetrically arranged with left-handed polarization probe and right-hand polarization probe on the described circuit board.Described dielectric polarization phase plate all becomes an angle of 90 degrees with described left-handed polarization probe and right-hand polarization probe.Described circuit board is comprised of the high-frequency amplifier circuit, filter circuit, mixting circuit, intermediate frequency amplifier circuit and the intermediate frequency output circuit that connect successively.Described left-handed polarization probe and right-hand polarization probe all are connected with described high-frequency amplifier circuit.Described feed is outside equipped with the disjunctor waterproof cover.
Beneficial effect
The utility model need not in the artificial weld probe, feed the dielectric polarization phase plate manually plug-in mounting, need not manually to simplify technique at matter polarization phase plate point glue, saving material cost, technique simply, steady quality and highly sensitive.
Description of drawings
Fig. 1 is a kind of side-looking structural representation that improves the circular polarization tuner of probe and dielectric polarization phase plate.
Fig. 2 is a kind of front elevational schematic of improving the circular polarization tuner of probe and dielectric polarization phase plate.
Fig. 3 is a kind of circuit theory schematic diagram that improves the circular polarization tuner of probe and dielectric polarization one photograph.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Such as Fig. 1, Fig. 2, shown in Figure 3, a kind of side-looking structural representation, generalized section and circuit theory schematic diagram that improves the circular polarization tuner of probe and dielectric polarization phase plate, a kind of circular polarization tuner that improves probe and dielectric polarization phase plate, comprise the feed 1, guided wave cylinder 2 and the circuit board box 3 that connect successively, described feed 1 and guided wave cylinder 2 are cylindrical, are provided with circuit board 4 in the described circuit board box 3.One end of described circuit board is connected with coaxial electrical cable end 5, is provided with in the described feed 1 and the integrated dielectric polarization phase plate 7 of shell, is symmetrically arranged with left-handed polarization probe 6 and right-hand polarization probe 8 on the described circuit board.Described dielectric polarization phase plate 7 all becomes an angle of 90 degrees with described left-handed polarization probe 6 and right-hand polarization probe 8.Described circuit board 4 is comprised of the high-frequency amplifier circuit 9, filter circuit, mixting circuit 10, intermediate frequency amplifier circuit 11 and the intermediate frequency output circuit that connect successively.Described left-handed polarization probe 6 is connected with the right-hand polarization probe and all is connected with described high-frequency amplifier circuit 9.Described feed is outside equipped with the disjunctor waterproof cover, has solved guided wave nozzle water inlet problem, has effectively prolonged the useful life of product.
The operation principle of the utility model tuner is: high frequency receives by feed, guided wave cylinder and is transferred to satellite RF signal that probe receives after high-frequency amplifier circuit 9 amplifies, filter out relevant interference by filter circuit and send mixting circuit 10 to deliver to 11 pairs of intermediate-freuqncy signals amplifications of intermediate frequency amplifier circuit by manually adjusting frequency again again, final output signal is exported through the intermediate frequency output circuit.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model; the technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. circular polarization tuner that improves probe and dielectric polarization phase plate, comprise the feed, guided wave cylinder and the circuit board box that connect successively, described feed and guided wave cylinder are cylindrical, be provided with circuit board in the described circuit board box, one end of described circuit board is connected with the coaxial electrical cable end, it is characterized in that, be provided with in the described feed and the integrated dielectric polarization phase plate of shell, be symmetrically arranged with left-handed polarization probe and right-hand polarization probe on the described circuit board.
2. a kind of circular polarization tuner that improves probe and dielectric polarization phase plate according to claim 1 is characterized in that, described dielectric polarization phase plate all becomes an angle of 90 degrees with described left-handed polarization probe and right-hand polarization probe.
3. a kind of circular polarization tuner that improves probe and dielectric polarization phase plate according to claim 1, it is characterized in that described circuit board is comprised of the high-frequency amplifier circuit, filter circuit, mixting circuit, intermediate frequency amplifier circuit and the intermediate frequency output circuit that connect successively.
4. a kind of circular polarization tuner that improves probe and dielectric polarization phase plate according to claim 3 is characterized in that, described left-handed polarization probe and right-hand polarization probe all are connected with described high-frequency amplifier circuit.
5. a kind of circular polarization tuner that improves probe and dielectric polarization phase plate according to claim 1 is characterized in that described feed is outside equipped with the disjunctor waterproof cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220566256 CN202872782U (en) | 2012-10-31 | 2012-10-31 | Improved circular polarization tuner of probe and dielectric polarization phase shift sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220566256 CN202872782U (en) | 2012-10-31 | 2012-10-31 | Improved circular polarization tuner of probe and dielectric polarization phase shift sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872782U true CN202872782U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220566256 Expired - Fee Related CN202872782U (en) | 2012-10-31 | 2012-10-31 | Improved circular polarization tuner of probe and dielectric polarization phase shift sheet |
Country Status (1)
| Country | Link |
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| CN (1) | CN202872782U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647956A (en) * | 2013-12-02 | 2014-03-19 | 夏召祥 | Integrated high frequency head for receiving satellite TV signal |
| CN104842154A (en) * | 2014-02-14 | 2015-08-19 | 陈江 | Automatic tuner assembly production line |
| CN109561267A (en) * | 2018-12-04 | 2019-04-02 | 安徽站乾科技有限公司 | A kind of dual polarization tuner of the detachable fin of band |
-
2012
- 2012-10-31 CN CN 201220566256 patent/CN202872782U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647956A (en) * | 2013-12-02 | 2014-03-19 | 夏召祥 | Integrated high frequency head for receiving satellite TV signal |
| CN104842154A (en) * | 2014-02-14 | 2015-08-19 | 陈江 | Automatic tuner assembly production line |
| CN104842154B (en) * | 2014-02-14 | 2017-06-23 | 陈江 | The automatic assembly line of tuner |
| CN109561267A (en) * | 2018-12-04 | 2019-04-02 | 安徽站乾科技有限公司 | A kind of dual polarization tuner of the detachable fin of band |
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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 |
Granted publication date: 20130410 Termination date: 20141031 |
|
| EXPY | Termination of patent right or utility model |