CN204361995U - Low-noise frequency demultiplier integrating C wave band and KU wave band - Google Patents
Low-noise frequency demultiplier integrating C wave band and KU wave band Download PDFInfo
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- CN204361995U CN204361995U CN201520025089.7U CN201520025089U CN204361995U CN 204361995 U CN204361995 U CN 204361995U CN 201520025089 U CN201520025089 U CN 201520025089U CN 204361995 U CN204361995 U CN 204361995U
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- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 230000008054 signal transmission Effects 0.000 description 4
- 238000009428 plumbing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
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Abstract
The utility model discloses a low-noise frequency demultiplier integrating C wave band and KU wave band, which comprises a C wave band circuit module, a Ku wave band circuit module and a radio frequency signal switching device, wherein the C wave band circuit module and the Ku wave band circuit module are connected with the input end of the radio frequency signal switching device in a way of switching input radio frequency signals; the radio frequency signal switching device adopts a DISEQC phase switcher. Implement the technical scheme of the utility model, realized that C wave band microwave signal and Ku wave band microwave signal can be received simultaneously to a frequency demultiplier, great improvement satellite television frequency demultiplier's function and range of application reach one set of satellite television antenna and can many television receiver use to can watch C wave band satellite program and Ku wave band satellite program simultaneously, the circuit is simple, can save space and save material.
Description
Technical field
The utility model relates to communication frequency demultiplier technical field, especially relates to the lnb of a kind of integrated C-band and KU wave band.
Background technology
The operation principle that satellite antenna receives satellite television utilizes satellite antenna to collect faint satellite-signal, and this satellite-signal is reflexed to the lnb of device at disc-shaped antenna focus place.Then, this concentrated signal amplifies by lnb, and rf frequency is down to the intermediate frequency of about 1GHz to 2GHz, is then sent to indoor receiver or top box of digital machine via cable.The channel will watched in signal is selected by receiver, after amplification demodulation is recovered to image and voice signal, and the broadcast program with regard to input TV.
Along with science and technology and the development of life, the transmission of communication is also more and more universal, watches that the ratio of satellite television is also more and more higher in family.Wherein, the essential device of satellite TV's TV watched by frequency demultiplier, but adopt frequency demultiplier on the market at present, and user cannot can watch KU wave band and C-band program simultaneously, can not meet the demand of client.
Utility model content
The technical problems to be solved in the utility model is the lnb providing a kind of integrated C-band and KU wave band.
The utility model solves the technical scheme that its technical problem adopts: the lnb constructing a kind of integrated C-band and KU wave band, comprise C-band circuit module, Ku band circuit module and radiofrequency signal switching device shifter, described radiofrequency signal switching device shifter, described C-band circuit module and Ku band circuit module changeable input radio frequency signal ground are connected to the input of described radiofrequency signal switching device shifter; Described radiofrequency signal switching device shifter adopts DISEQC phase switcher.
In lnb of the present utility model, described C-band circuit module comprises the first horizontally-polarized antenna, the first vertical polarized antenna, the first amplifier, the second amplifier, the first mixting circuit, the first intermediate frequency amplifier, intermediate-frequency filter, the second intermediate frequency amplifier and the first oscillator; Described first mixting circuit, the first intermediate frequency amplifier, intermediate-frequency filter, the second intermediate frequency amplifier successively conducting connect, and the output of described second intermediate frequency amplifier is connected with the input conducting of described radiofrequency signal switching device shifter; Described first amplifier is all connected with the input conducting of the first mixting circuit with the output of the second amplifier, and its input is connected with described first horizontally-polarized antenna and the second vertical polarized antenna respectively; Described first oscillator is connected with described first mixting circuit conducting.
In lnb of the present utility model, described Ku band circuit module comprises the second horizontally-polarized antenna, the second vertical polarized antenna, the 3rd amplifier, the 4th amplifier, the second level share amplifier, filter circuit, the second mixting circuit, the 3rd intermediate frequency amplifier, the 4th intermediate frequency amplifier, the second oscillator and the 3rd oscillator; The second level shares the conducting connection successively of amplifier, filter circuit, the second mixting circuit, the 3rd intermediate frequency amplifier, the 4th intermediate frequency amplifier, and the output of the 4th intermediate frequency amplifier is connected with the input conducting of described radiofrequency signal switching device shifter; Described 3rd amplifier all shares amplifier with the output of the 4th amplifier input conducting with the described second level is connected, and its input is connected with described second horizontally-polarized antenna and the second vertical polarized antenna respectively; Described second oscillator is connected with described second mixting circuit conducting respectively with described 3rd oscillator.
In lnb of the present utility model, described first amplifier, the second amplifier, the 3rd amplifier and the 4th amplifier are microwave field effect electric crystal.
In lnb of the present utility model, described first horizontally-polarized antenna and described second vertical polarized antenna are parallel to each other, described first vertical polarized antenna and described second horizontally-polarized antenna are parallel to each other, and the vertical signal reflection rod of described C-band circuit module reflects rod with the horizontal signal of described Ku band circuit module and is parallel to each other.
Implement the technical solution of the utility model, at least there is following beneficial effect: the integrated C-band in employing the utility model and the lnb of KU wave band, achieve a frequency demultiplier and can receive C-band microwave signal and Ku band microwave signal simultaneously, improve the function and application scope of satellite television frequency demultiplier greatly, reach a set of satellite tv antenna can use by multiple stage television receiver, and C-band satellite programming and Ku band satellite program can be watched simultaneously, circuit is simple, can save space and save material.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the lnb of a kind of integrated C-band in embodiments more of the present utility model and KU wave band;
Wherein, 1, C-band circuit module; 11, the first horizontally-polarized antenna; 12, the first vertical polarized antenna; 13, the first amplifier; 14, the second amplifier; 15, the first mixting circuit; 151, the first oscillator; 16, the first intermediate frequency amplifier; 17, intermediate-frequency filter; 18, the second intermediate frequency amplifier; 2, Ku band circuit module; 21, the second horizontally-polarized antenna; 22, the second vertical polarized antenna; 23, the 3rd amplifier; 24, the 4th amplifier; 25, the second level shares amplifier; 26, filter circuit; 27, the second mixting circuit; 271, the second oscillator; 272, the 3rd oscillator; 28, the 3rd intermediate frequency amplifier; 29, the 4th intermediate frequency amplifier; 3, radiofrequency signal switching device shifter.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and describe embodiment of the present utility model in detail.
Fig. 1 shows the lnb of a kind of integrated C-band in the utility model and KU wave band, it comprises C-band circuit module 1, Ku band circuit module 2 and radiofrequency signal switching device shifter 3, radiofrequency signal switching device shifter 3, C-band circuit module 1 and the changeable input radio frequency signal ground of Ku band circuit module 2 are connected to the input of described radiofrequency signal switching device shifter 3.This radiofrequency signal switching device shifter 3 adopts DISEQC phase switcher.
In certain embodiments, this C-band circuit module 1 comprises the first horizontally-polarized antenna 11, first vertical polarized antenna 12, first amplifier 13, second amplifier 14, first mixting circuit 15, first intermediate frequency amplifier 16, intermediate-frequency filter 17, second intermediate frequency amplifier 18 and the first oscillator 151.
This first mixting circuit 15, first intermediate frequency amplifier 16, intermediate-frequency filter 17, second intermediate frequency amplifier 18 successively conducting connect, and the output of this second intermediate frequency amplifier 18 is connected with the input conducting of this radiofrequency signal switching device shifter 3.
This first amplifier 13 is all connected with the input conducting of the first mixting circuit 15 with the output of the second amplifier 14, and its input is connected with this first horizontally-polarized antenna 11 and the first vertical polarized antenna 12 respectively.This first oscillator 151 is connected with this first mixting circuit 15 conducting.
In certain embodiments, this Ku band circuit module 2 comprises the second horizontally-polarized antenna 21, second vertical polarized antenna 22, the 3rd amplifier 23, the 4th amplifier 24, the second level shares amplifier 25, filter circuit 26, second mixting circuit 27, the 3rd intermediate frequency amplifier 28, the 4th intermediate frequency amplifier 29, second oscillator 271 and the 3rd oscillator 272.
The second level shares the conducting connection successively of amplifier 25, filter circuit 26, second mixting circuit 27, the 3rd intermediate frequency amplifier 28, the 4th intermediate frequency amplifier 29, and the output of the 4th intermediate frequency amplifier 29 is connected with the input conducting of this radiofrequency signal switching device shifter 3.
3rd amplifier 23 all shares amplifier 25 with the output of the 4th amplifier 24 input conducting with this second level is connected, and its input is connected with this second horizontally-polarized antenna 21 and the second vertical polarized antenna 22 respectively.
This second oscillator 271 and the 3rd oscillator 272 are connected with this second mixting circuit 27 conducting respectively.
Further, the first amplifier 13, second amplifier 14, the 3rd amplifier 23 and the 4th amplifier 24 are microwave field effect electric crystal.
Further, this first horizontally-polarized antenna 11 is parallel to each other with this second vertical polarized antenna 22, this first vertical polarized antenna 12 is parallel to each other with this second horizontally-polarized antenna 21, and the vertical signal reflection rod of this C-band circuit module 1 reflects rod with the horizontal signal of this Ku band circuit module 2 and is parallel to each other.
The operation principle of C-band described in the utility model and Ku wave band integration low noise frequency reducing amplifier is specially:
When the first horizontally-polarized antenna 11 and the first vertical polarized antenna 12 receive the descending C-band microwave signal of satellite television (C-band horizontal signal and C-band vertical signal), first the microwave plumbing collection ripple of C-band circuit module 1 is entered through this first horizontally-polarized antenna 11 and the first vertical polarized antenna 12, and be transferred to the first amplifier 13 respectively and the second amplifier 14 carries out noise reduction, amplify process, and transfer out to the first mixting circuit 15, then the frequency of C-band microwave signal is down to the Received signal strength frequency range of satellite motor receiver by the first mixting circuit 15 under the acting in conjunction of the first oscillator 151 again, and be transferred to the first intermediate frequency amplifier 16 and carry out intermediate frequency amplification, the rear C-band microwave signal of amplification process is transferred to intermediate-frequency filter 17 again and carries out noise reduction, through noise reduction, after amplifying process, C-band microwave signal transmission amplifies to the second intermediate frequency amplifier 18 again, and the second intermediate frequency amplifier 18 by Signal transmissions to radiofrequency signal switching device shifter 3, radiofrequency signal switching device shifter 3 receive this through intermediate frequency amplify C-band microwave signal after carry out signal circuit switching controls, and export to television set, show.
When the second horizontally-polarized antenna 21 and the second vertical polarized antenna 22 receive the descending Ku band microwave signal of satellite television (Ku wave band horizontal signal and Ku wave band vertical signal), first after the microwave plumbing of C-band circuit module 1, the microwave plumbing collection ripple of Ku band circuit module 2 is entered through this second horizontally-polarized antenna 21 and the second vertical polarized antenna 22, and be transferred to the 3rd amplifier 23 and the 4th amplifier 24 respectively and carry out noise reduction, amplify process, and transfer out and share amplifier 25 to the second level, then the second level shares amplifier 25 and is synthesized by the Ku band microwave signal after amplifying process, and is transferred to filter circuit 26 and carries out noise reduction, through noise reduction and the Ku band microwave Signal transmissions after amplifying process to the second mixting circuit 27, then the local oscillated signal that the second oscillator 271 and the 3rd oscillator 272 produce again is transferred to the second mixting circuit 27 in the lump with Ku band microwave signal and mixes, and be sent to the 3rd intermediate frequency amplifier 28 after mixed signal is reduced to intermediate-freuqncy signal and carry out intermediate frequency amplification, signal after amplification is sent to the 4th intermediate frequency amplifier 29 and carries out the amplification of secondary intermediate frequency, finally, by Signal transmissions to radiofrequency signal switching device shifter 3, radiofrequency signal switching device shifter 3 receive this through secondary intermediate frequency amplify KU band microwave signal after carry out signal circuit switching controls, and export to television set, show.
Like this, low noise frequency reducing amplifier described in the utility model is integrated with C-band and Ku wave band, achieve a frequency reducing amplifier and can receive C-band microwave signal and Ku band microwave signal, improve the function and application scope of satellite television frequency reducing amplifying frequency demultiplier greatly, reach a set of satellite tv antenna can use by multiple stage television receiver, and C-band satellite programming and Ku band satellite program can be watched simultaneously, and only need be equipped with this frequency reducing amplifier when installing, without the need to being equipped with two kinds of frequency reducing amplifiers as traditional structure, circuit is simple, space can be saved, save material, installation and maintenance is easy, convenient, expense is low.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various change, combination and change.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within right of the present utility model.
Claims (5)
1. the lnb of an integrated C-band and KU wave band, it is characterized in that, comprise C-band circuit module (1), Ku band circuit module (2) and radiofrequency signal switching device shifter (3), described radiofrequency signal switching device shifter (3), described C-band circuit module (1) and Ku band circuit module (2) changeable input radio frequency signal ground are connected to the input of described radiofrequency signal switching device shifter (3); Described radiofrequency signal switching device shifter (3) adopts DISEQC phase switcher.
2. lnb according to claim 1, it is characterized in that, described C-band circuit module (1) comprises the first horizontally-polarized antenna (11), the first vertical polarized antenna (12), the first amplifier (13), the second amplifier (14), the first mixting circuit (15), the first intermediate frequency amplifier (16), intermediate-frequency filter (17), the second intermediate frequency amplifier (18) and the first oscillator (151);
Described first mixting circuit (15), the first intermediate frequency amplifier (16), intermediate-frequency filter (17), the second intermediate frequency amplifier (18) successively conducting connect, and the output of described second intermediate frequency amplifier (18) is connected with the input conducting of described radiofrequency signal switching device shifter (3);
Described first amplifier (13) is all connected with the input conducting of the first mixting circuit (15) with the output of the second amplifier (14), and its input is connected with described first horizontally-polarized antenna (11) and the second vertical polarized antenna (12) respectively;
Described first oscillator (151) is connected with the conducting of described first mixting circuit (15).
3. lnb according to claim 2, it is characterized in that, described Ku band circuit module (2) comprises the second horizontally-polarized antenna (21), the second vertical polarized antenna (22), the 3rd amplifier (23), the 4th amplifier (24), the second level shares amplifier (25), filter circuit (26), the second mixting circuit (27), the 3rd intermediate frequency amplifier (28), the 4th intermediate frequency amplifier (29), the second oscillator (271) and the 3rd oscillator (272);
The second level shares the conducting connection successively of amplifier (25), filter circuit (26), the second mixting circuit (27), the 3rd intermediate frequency amplifier (28), the 4th intermediate frequency amplifier (29), and the output of the 4th intermediate frequency amplifier (29) is connected with the input conducting of described radiofrequency signal switching device shifter (3);
Described 3rd amplifier (23) all shares amplifier (25) with the output of the 4th amplifier (24) input conducting with the described second level is connected, and its input is connected with described second horizontally-polarized antenna (21) and the second vertical polarized antenna (22) respectively;
Described second oscillator (271) is connected with the conducting of described second mixting circuit (27) respectively with described 3rd oscillator (272).
4. lnb according to claim 3, it is characterized in that, described first amplifier (13), the second amplifier (14), the 3rd amplifier (23) and the 4th amplifier (24) are microwave field effect electric crystal.
5. lnb according to claim 3, it is characterized in that, described first horizontally-polarized antenna (11) and described second vertical polarized antenna (22) are parallel to each other, described first vertical polarized antenna (12) and described second horizontally-polarized antenna (21) are parallel to each other, and the vertical signal reflection rod of described C-band circuit module (1) reflects rod with the horizontal signal of described Ku band circuit module (2) and is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520025089.7U CN204361995U (en) | 2015-01-14 | 2015-01-14 | Low-noise frequency demultiplier integrating C wave band and KU wave band |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520025089.7U CN204361995U (en) | 2015-01-14 | 2015-01-14 | Low-noise frequency demultiplier integrating C wave band and KU wave band |
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| CN204361995U true CN204361995U (en) | 2015-05-27 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533494A (en) * | 2016-12-22 | 2017-03-22 | 华讯方舟科技（湖北）有限公司 | Microwave frequency converter and microwave frequency conversion circuit thereof |
| CN108736902A (en) * | 2017-04-17 | 2018-11-02 | 东莞百电子有限公司 | A kind of novel combination S frequency ranges and KU frequency range tuners |
| CN108737796A (en) * | 2017-04-17 | 2018-11-02 | 东莞百电子有限公司 | A kind of novel combination S frequency ranges and KU frequency range tuner structures |
-
2015
- 2015-01-14 CN CN201520025089.7U patent/CN204361995U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533494A (en) * | 2016-12-22 | 2017-03-22 | 华讯方舟科技（湖北）有限公司 | Microwave frequency converter and microwave frequency conversion circuit thereof |
| CN108736902A (en) * | 2017-04-17 | 2018-11-02 | 东莞百电子有限公司 | A kind of novel combination S frequency ranges and KU frequency range tuners |
| CN108737796A (en) * | 2017-04-17 | 2018-11-02 | 东莞百电子有限公司 | A kind of novel combination S frequency ranges and KU frequency range tuner structures |
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