CN203151651U - Single-output Ku-waveband high-frequency head with four local oscillators - Google Patents
Single-output Ku-waveband high-frequency head with four local oscillators Download PDFInfo
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- CN203151651U CN203151651U CN 201320172921 CN201320172921U CN203151651U CN 203151651 U CN203151651 U CN 203151651U CN 201320172921 CN201320172921 CN 201320172921 CN 201320172921 U CN201320172921 U CN 201320172921U CN 203151651 U CN203151651 U CN 203151651U
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Abstract
The utility model provides a single-output Ku-waveband high-frequency head with four local oscillators. The single-output Ku-waveband high-frequency head with the four local oscillators comprises a V circuit (1), an H circuit (2) and a main synthetic circuit (3). According to the single-output Ku-waveband high-frequency head with the four local oscillators provided by the utility model, the following technical scheme is adopted: the vertical polarization signal and the horizontal polarization signal of a satellite are processed in the V circuit and the H circuit respectively; the V circuit and the H circuit are provided with two parallel superheterodyne amplification processing circuits forming a VG circuit, a VD circuit, an HG circuit and an HD circuit by four local oscillators respectively; the corresponding signal is processed by each superheterodyne amplification processing circuit, and then combined and amplified by the V circuit combiner and the V2 intermediate-frequency amplifier of the V circuit, and the H circuit combiner and the H2 intermediate-frequency amplifier of the H circuit, and then combined and amplified by the Z circuit combiner and the Z intermediate-frequency amplifier of the main synthetic circuit; the problems and shortages of low gain and high noise existing in the prior art are overcome; and the Ku-waveband high-frequency head with single-cable transmission achieves the purposes of increasing gain and reducing noise.
Description
Technical field
The utility model relates to a kind of tuner of the Ku of reception waveband radio frequency signal, specifically refers to be contained on the satellite antenna of ground, is used for receiving the single output of a kind of four local oscillators Ku wave band tuner of geostatic telecommunications satellite Ku waveband radio frequency signal list cable transmission.
Background technology
The Ku wave band tuner device of prior art is made of two low noise amplifiers, two band pass filters, two local oscillators, two frequency mixers, three intermediate frequency amplifiers, a mixer, the horizontal polarization signal and the perpendicular polarization signal that receive satellite are divided into two process circuit, every road signal amplifies by low noise amplification, bandpass filtering, mixing and first order intermediate frequency earlier to be handled, afterwards, two road He Lu close the road signal and amplify again by single cable output through second level intermediate frequency; Because each process circuit is only amplified by bandpass filtering and two-stage intermediate frequency the signal that receives, thereby the signal gain of output is low, noise is high, therefore, there are the problems and shortcomings that gain is low, noise is high in prior art.
Summary of the invention
Problems and shortcomings at above-mentioned prior art existence, the utility model adopts perpendicular polarization signal and the horizontal polarization signal with satellite to be divided into the V circuit, two circuits of H circuit are handled respectively, wherein, V circuit and H circuit set up separately again separately two parallel, constitute the VG circuit respectively by four local oscillators, VD circuit and HG circuit, HD circuit four tunnel superhet amplification treatment circuits, superhet amplification treatment circuit separately carries out filtering to affiliated signal respectively, difference frequency, amplify and handle, afterwards, again respectively by the V mixer under the V circuit and V2 intermediate frequency amplifier, H mixer under the H circuit and H2 intermediate frequency amplifier close the road and amplify, Z mixer and Z intermediate frequency amplifier through total synthetic circuit closes the technical scheme that output is amplified on the road again again, the single output of a kind of four local oscillators Ku wave band tuner is provided, is intended to make the Ku wave band tuner of single cable transmission to reach the raising gain, reduce the purpose of noise.
The purpose of this utility model is achieved in that the single output of a kind of four local oscillators Ku wave band tuner, comprise V circuit, H circuit, total synthetic circuit, wherein: described V circuit is to comprise that V low noise amplifier, VG circuit and VD circuit are used for the circuit that the perpendicular polarization signal is handled, and the perpendicular polarization signal enters two superhet amplifying circuits parallel, that be called VG circuit and VD circuit simultaneously and carries out filtering, difference frequency, amplification processing after the V low noise amplifier amplifies; Wherein, described VG circuit is made of VG1 band pass filter, VG frequency mixer, VG local oscillator, VG1 intermediate frequency amplifier, VG2 band pass filter, from the beginning to the end, described VG1 band pass filter, VG frequency mixer, VG1 intermediate frequency amplifier and VG2 band pass filter are connected, and described VG frequency mixer also is connected with described VG local oscillator; Described VD circuit is made of VD1 band pass filter, VD frequency mixer, VD local oscillator, VD intermediate frequency amplifier, VD2 band pass filter, from the beginning to the end, described VD1 band pass filter, VD frequency mixer, VD intermediate frequency amplifier and VD2 band pass filter are connected, and described VD frequency mixer also is connected with described VD local oscillator; Afterwards, two tunnel perpendicular polarization signals after VG circuit and the processing of VD circuit amplify acquisition V road, back signal by the road of closing of V mixer and V2 intermediate frequency amplifier again;
Described H circuit is for comprising the H low noise amplifier, HG circuit and HD circuit are for the circuit that the horizontal polarization signal is handled, the horizontal polarization signal after the H low noise amplifier amplifies, enter simultaneously two parallel, the superhet amplifying circuit that is called HG circuit and HD circuit carries out filtering, difference frequency, amplify and handle, wherein, described HG circuit is by the HG1 band pass filter, the HG frequency mixer, the HG local oscillator, the HG intermediate frequency amplifier, the HG2 low pass filter constitutes, from the beginning to the end, described HG1 band pass filter, the HG frequency mixer, the HG intermediate frequency amplifier, HG2 low pass filter polyphone connects, and described HG frequency mixer also is connected with described HG local oscillator; Described HD circuit is made of HD1 band pass filter, HD frequency mixer, HD local oscillator, HD intermediate frequency amplifier, HD2 high pass filter, from the beginning to the end, described HD1 band pass filter, HD frequency mixer, HD intermediate frequency amplifier, HD2 high pass filter polyphone connect, and described HD frequency mixer also is connected with described HD local oscillator; Afterwards, two tunnel horizontal polarization signals after HG circuit and the processing of HD circuit amplify acquisition H road, back signal by the road of closing of H mixer and H2 intermediate frequency amplifier again;
Described total synthetic circuit is for comprising Z mixer, Z intermediate frequency amplifier, Z output, be used for described V road signal and H road signal are closed the circuit that output is amplified on the road, described V road signal is connected with the input of Z mixer respectively with H road signal, from the beginning to the end, described Z mixer, Z intermediate frequency amplifier and Z output are connected;
Described V low noise amplifier, H low noise amplifier are the GaAs low noise amplifier;
Described VG1 band pass filter is the microstripline filter of bandwidth 11.704～11.941GHz;
Described VG frequency mixer, VD frequency mixer, HG frequency mixer, the passive-type frequency mixer of HD frequency mixer for being constituted by double diode;
Described V mixer, H mixer, Z mixer are two to advance a two-way that outes and close the road electronic device;
Described VG local oscillator is the ceramic resonator that the natural frequency of vibration transfers to 13.435GHz;
Described VG intermediate frequency amplifier, VD intermediate frequency amplifier, V2 intermediate frequency amplifier, HG intermediate frequency amplifier, HD intermediate frequency amplifier, H2 intermediate frequency amplifier, Z intermediate frequency amplifier are intermediate frequency amplifier;
The band that described VG2 band pass filter is bandwidth 1494～1731MHz leads to ceramic filter;
Described VD1 band pass filter is the microstripline filter of bandwidth 11.0105～11.0675GHz;
Described VD local oscillator is the ceramic resonator that the natural frequency of vibration transfers to 12.86GHz;
The band that described VD2 band pass filter is bandwidth 1792.5～1849.5MHz leads to ceramic filter;
Described HG1 band pass filter is the microstripline filter of bandwidth 11.704～12.188GHz;
Described HG local oscillator is the ceramic resonator that the natural frequency of vibration transfers to 13.138GHz;
The low pass ceramic filter that described HG2 low pass filter is 950～1434MHz passage;
Described HD1 band pass filter is the microstripline filter of bandwidth 10.9625～11.1995GHz;
Described HD local oscillator is the ceramic resonator that the natural frequency of vibration transfers to 13.112GHz;
The high pass ceramic filter that described HD2 high pass filter is 1912.5～2149.5MHz passage;
Described Z output is the interface of stube cable.
Operation principle and beneficial effect
This device is provided with by four local oscillators and constitutes the VG circuit respectively, VD circuit and HG circuit, HD circuit four tunnel superhet amplification treatment circuits, by V circuit and H circuit, perpendicular polarization signal and horizontal polarization signal with the satellite after low noise is amplified respectively, again respectively through four tunnel superhet amplification treatment circuits, carry out filtering, mixing, difference frequency amplifies, the superhet first order intermediate frequency of filtering amplifies processing again, with perpendicular polarization signal and the horizontal polarization signal after handling by four tunnel respectively, close the road separately and after second level intermediate frequency amplifies, obtain V road signal and H road signal respectively, again V road signal and H road signal are closed road output after third level intermediate frequency amplifies by total synthetic circuit afterwards, make the Ku wave band tuner of single cable transmission further improve gain, reduced noise.
Above-mentioned, the utility model adopts perpendicular polarization signal and the horizontal polarization signal with satellite to be divided into the V circuit, two circuits of H circuit are handled respectively, wherein, V circuit and H circuit set up separately again separately two parallel, constitute the VG circuit respectively by four local oscillators, VD circuit and HG circuit, HD circuit four tunnel superhet amplification treatment circuits, superhet amplification treatment circuit separately carries out filtering to affiliated signal respectively, difference frequency, amplify and handle, afterwards, again respectively by the V mixer under the V circuit and V2 intermediate frequency amplifier, H mixer under the H circuit and H2 intermediate frequency amplifier close the road and amplify, Z mixer and Z intermediate frequency amplifier through total synthetic circuit closes the technical scheme that output is amplified on the road again again, having overcome prior art exists gain low, the problems and shortcomings that noise is high, institute provides to such an extent that a kind of four local oscillators list is exported Ku wave band tuner, makes the Ku wave band tuner of single cable transmission reach the raising gain, reduce the purpose of noise.
Description of drawings
Fig. 1 is the circuit theory schematic diagram of the single output of a kind of four local oscillators of the present utility model Ku wave band tuner.
Be described in further detail below in conjunction with the utility model of the embodiment in the accompanying drawing, but should not be construed as any restriction of the present utility model.
Among the figure: V circuit 1, perpendicular polarization signal 11, V low noise amplifier 12, VG circuit 01, VG1 band pass filter 13, VG frequency mixer 131, VG local oscillator 132, VG intermediate frequency amplifier 133, VG2 band pass filter 134, VD circuit 02, VD1 band pass filter 14, VD frequency mixer 141, VD local oscillator 142, VD intermediate frequency amplifier 143, VD2 band pass filter 144, V mixer 15, V2 intermediate frequency amplifier 16, H circuit 2, horizontal polarization signal 21, H low noise amplifier 22, HG circuit 03, HG1 band pass filter 23, HG frequency mixer 231, HG local oscillator 232, HG intermediate frequency amplifier 233, HG2 low pass filter 234, HD circuit 04, HD1 band pass filter 24, HD frequency mixer 241, HD local oscillator 242, HD intermediate frequency amplifier 243, HD2 high pass filter 244, H mixer 25, H2 intermediate frequency amplifier 26, total synthetic circuit 3, Z mixer 31, Z intermediate frequency amplifier 32, Z output 33.
Embodiment
Consult Fig. 1, the single output of a kind of four local oscillators of the present utility model Ku wave band tuner, comprise V circuit 1, H circuit 2, total synthetic circuit 3, wherein: described V circuit 1 is to comprise that V low noise amplifier 12, VG circuit 01 and VD circuit 02 are used for the circuit that the perpendicular polarization signal is handled, and perpendicular polarization signal 11 enters two superhet amplifying circuits parallel, that be called VG circuit 01 and VD circuit 02 simultaneously and carries out filtering, difference frequency, amplification processing after V low noise amplifier 12 amplifies; Wherein, described VG circuit 01 is made of VG1 band pass filter 13, VG frequency mixer 131, VG local oscillator 132, VG1 intermediate frequency amplifier 133, VG2 band pass filter 134, from the beginning to the end, described VG1 band pass filter 13, VG frequency mixer 131, VG1 intermediate frequency amplifier 133 and VG2 band pass filter 134 are connected, and described VG frequency mixer 131 also is connected with described VG local oscillator 132; Described VD circuit 02 is made of VD1 band pass filter 14, VD frequency mixer 141, VD local oscillator 142, VD intermediate frequency amplifier 143, VD2 band pass filter 144, from the beginning to the end, described VD1 band pass filter 14, VD frequency mixer 141, VD intermediate frequency amplifier 143 and VD2 band pass filter 144 are connected, and described VD frequency mixer 141 also is connected with described VD local oscillator 142; Afterwards, two tunnel perpendicular polarization signals after VG circuit 01 and 02 processing of VD circuit amplify acquisition V road, back signal by the road of closing of V mixer 15 and V2 intermediate frequency amplifier 16 again;
Described H circuit 2 is for comprising H low noise amplifier 22, HG circuit 03 and HD circuit 04 are for the circuit that the horizontal polarization signal is handled, horizontal polarization signal 21 after H low noise amplifier 22 amplifies, enter simultaneously two parallel, the superhet amplifying circuit that is called HG circuit 03 and HD circuit 04 carries out filtering, difference frequency, amplify and handle, wherein, described HG circuit 03 is by HG1 band pass filter 23, HG frequency mixer 231, HG local oscillator 232, HG intermediate frequency amplifier 233, HG2 low pass filter 234 constitutes, from the beginning to the end, described HG1 band pass filter 23, HG frequency mixer 231, HG intermediate frequency amplifier 233, HG2 low pass filter 234 polyphones connect, and described HG frequency mixer 231 also is connected with described HG local oscillator 232; Described HD circuit 04 is made of HD1 band pass filter 24, HD frequency mixer 241, HD local oscillator 242, HD intermediate frequency amplifier 243, HD2 high pass filter 244, from the beginning to the end, described HD1 band pass filter 24, HD frequency mixer 241, HD intermediate frequency amplifier 243, HD2 high pass filter 244 polyphones connect, and described HD frequency mixer 241 also is connected with described HD local oscillator 242; Afterwards, two tunnel horizontal polarization signals after HG circuit 03 and 04 processing of HD circuit amplify acquisition H road, back signal by the road of closing of H mixer 25 and H2 intermediate frequency amplifier 26 again;
Described total synthetic circuit 3 is for comprising Z mixer 31, Z intermediate frequency amplifier 32, Z output 33, be used for described V road signal and H road signal are closed the circuit that output is amplified on the road, described V road signal is connected with the input of Z mixer 31 respectively with H road signal, from the beginning to the end, described Z mixer 31, Z intermediate frequency amplifier 32 and Z output 33 are connected;
Described V low noise amplifier 12, H low noise amplifier 22 are the GaAs low noise amplifier;
Described VG1 band pass filter 13 is the microstripline filter of bandwidth 11.704～11.941GHz;
Described VG frequency mixer 131, VD frequency mixer 141, HG frequency mixer 231, the passive-type frequency mixer of HD frequency mixer 241 for being constituted by double diode;
Described V mixer 15, H mixer 25, Z mixer 31 are two to advance a two-way that outes and close the road electronic device;
Described VG local oscillator 132 transfers to the ceramic resonator of 13.435GHz for the natural frequency of vibration;
Described VG intermediate frequency amplifier 133, VD intermediate frequency amplifier 143, V2 intermediate frequency amplifier 16, HG intermediate frequency amplifier 233, HD intermediate frequency amplifier 243, H2 intermediate frequency amplifier 26, Z intermediate frequency amplifier 32 are intermediate frequency amplifier;
The band that described VG2 band pass filter 134 is bandwidth 1494～1731MHz leads to ceramic filter;
Described VD1 band pass filter 14 is the microstripline filter of bandwidth 11.0105～11.0675GHz;
Described VD local oscillator 142 transfers to the ceramic resonator of 12.86GHz for the natural frequency of vibration;
The band that described VD2 band pass filter 144 is bandwidth 1792.5～1849.5MHz leads to ceramic filter;
Described HG1 band pass filter 23 is the microstripline filter of bandwidth 11.704～12.188GHz;
Described HG local oscillator 232 transfers to the ceramic resonator of 13.138GHz for the natural frequency of vibration;
Described HG2 low pass filter 234 is the low pass ceramic filter of 950～1434MHz passage;
Described HD1 band pass filter 24 is the microstripline filter of bandwidth 10.9625～11.1995GHz;
Described HD local oscillator 242 transfers to the ceramic resonator of 13.112GHz for the natural frequency of vibration;
Described HD2 high pass filter 244 is the high pass ceramic filter of 1912.5～2149.5MHz passage;
Described Z output 33 is the interface of stube cable.
Operation principle and beneficial effect
This device is provided with by four local oscillators and constitutes VG circuit 01 respectively, VD circuit 02 and HG circuit 03, HD circuit 04 four tunnel superhet amplification treatment circuit, by V circuit 1 and H circuit 2, perpendicular polarization signal and horizontal polarization signal with the satellite after low noise is amplified respectively, again respectively through four tunnel superhet amplification treatment circuits, carry out filtering, mixing, difference frequency amplifies, the superhet first order intermediate frequency of filtering amplifies processing again, with perpendicular polarization signal and the horizontal polarization signal after handling by four tunnel respectively, close the road separately and after second level intermediate frequency amplifies, obtain V road signal and H road signal respectively, again V road signal and H road signal are closed road output after third level intermediate frequency amplifies by total synthetic circuit 3 afterwards, make the Ku wave band tuner of single cable transmission further improve gain, reduced noise.
Claims (1)
1. a local oscillator list is exported Ku wave band tuner, comprise V circuit (1), H circuit (2), total synthetic circuit (3), it is characterized in that: described V circuit (1) is to comprise that V low noise amplifier (12), VG circuit (01) and VD circuit (02) are used for the circuit that the perpendicular polarization signal is handled, and perpendicular polarization signal (11) enters two superhet amplifying circuits parallel, that be called VG circuit (01) and VD circuit (02) simultaneously and carries out filtering, difference frequency, amplification processing after V low noise amplifier (12) amplifies; Wherein, described VG circuit (01) is made of VG1 band pass filter (13), VG frequency mixer (131), VG local oscillator (132), VG1 intermediate frequency amplifier (133), VG2 band pass filter (134), from the beginning to the end, described VG1 band pass filter (13), VG frequency mixer (131), VG1 intermediate frequency amplifier (133) and VG2 band pass filter (134) are connected, and described VG frequency mixer (131) also is connected with described VG local oscillator (132); Described VD circuit (02) is made of VD1 band pass filter (14), VD frequency mixer (141), VD local oscillator (142), VD intermediate frequency amplifier (143), VD2 band pass filter (144), from the beginning to the end, described VD1 band pass filter (14), VD frequency mixer (141), VD intermediate frequency amplifier (143) and VD2 band pass filter (144) are connected, and described VD frequency mixer (141) also is connected with described VD local oscillator (142); Afterwards, two tunnel perpendicular polarization signals after VG circuit (01) and VD circuit (02) processing amplify acquisition V road, back signal by the road of closing of V mixer (15) and V2 intermediate frequency amplifier (16) again;
Described H circuit (2) is for comprising H low noise amplifier (22), HG circuit (03) and HD circuit (04) are for the circuit that the horizontal polarization signal is handled, horizontal polarization signal (21) after H low noise amplifier (22) amplifies, enter simultaneously two parallel, the superhet amplifying circuit that is called HG circuit (03) and HD circuit (04) carries out filtering, difference frequency, amplify and handle, wherein, described HG circuit (03) is by HG1 band pass filter (23), HG frequency mixer (231), HG local oscillator (232), HG intermediate frequency amplifier (233), HG2 low pass filter (234) constitutes, from the beginning to the end, described HG1 band pass filter (23), HG frequency mixer (231), HG intermediate frequency amplifier (233), HG2 low pass filter (234) polyphone connects, and described HG frequency mixer (231) also is connected with described HG local oscillator (232); Described HD circuit (04) is made of HD1 band pass filter (24), HD frequency mixer (241), HD local oscillator (242), HD intermediate frequency amplifier (243), HD2 high pass filter (244), from the beginning to the end, described HD1 band pass filter (24), HD frequency mixer (241), HD intermediate frequency amplifier (243), HD2 high pass filter (244) polyphone connect, and described HD frequency mixer (241) also is connected with described HD local oscillator (242); Afterwards, two tunnel horizontal polarization signals after HG circuit (03) and HD circuit (04) processing amplify acquisition H road, back signal by the road of closing of H mixer (25) and H2 intermediate frequency amplifier (26) again;
Described total synthetic circuit (3) is for comprising Z mixer (31), Z intermediate frequency amplifier (32), Z output (33), be used for described V road signal and H road signal are closed the circuit that output is amplified on the road, described V road signal is connected with the input of Z mixer (31) respectively with H road signal, from the beginning to the end, described Z mixer (31), Z intermediate frequency amplifier (32) and Z output (33) are connected;
Described V low noise amplifier (12), H low noise amplifier (22) are the GaAs low noise amplifier;
Described VG1 band pass filter (13) is the microstripline filter of bandwidth 11.704～11.941GHz;
Described VG frequency mixer (131), VD frequency mixer (141), HG frequency mixer (231), the passive-type frequency mixer of HD frequency mixer (241) for being constituted by double diode;
Described V mixer (15), H mixer (25), Z mixer (31) are two to advance a two-way that outes and close the road electronic device;
Described VG local oscillator (132) transfers to the ceramic resonator of 13.435GHz for the natural frequency of vibration;
Described VG intermediate frequency amplifier (133), VD intermediate frequency amplifier (143), V2 intermediate frequency amplifier (16), HG intermediate frequency amplifier (233), HD intermediate frequency amplifier (243), H2 intermediate frequency amplifier (26), Z intermediate frequency amplifier (32) are intermediate frequency amplifier;
Described VG2 band pass filter (134) is the logical ceramic filter of the band of bandwidth 1494～1731MHz;
Described VD1 band pass filter (14) is the microstripline filter of bandwidth 11.0105～11.0675GHz;
Described VD local oscillator (142) transfers to the ceramic resonator of 12.86GHz for the natural frequency of vibration;
Described VD2 band pass filter (144) is the logical ceramic filter of the band of bandwidth 1792.5～1849.5MHz;
Described HG1 band pass filter (23) is the microstripline filter of bandwidth 11.704～12.188GHz;
Described HG local oscillator (232) transfers to the ceramic resonator of 13.138GHz for the natural frequency of vibration;
Described HG2 low pass filter (234) is the low pass ceramic filter of 950～1434MHz passage;
Described HD1 band pass filter (24) is the microstripline filter of bandwidth 10.9625～11.1995GHz;
Described HD local oscillator (242) transfers to the ceramic resonator of 13.112GHz for the natural frequency of vibration;
Described HD2 high pass filter (244) is the high pass ceramic filter of 1912.5～2149.5MHz passage;
Described Z output (33) is the interface of stube cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172921 CN203151651U (en) | 2013-03-21 | 2013-03-21 | Single-output Ku-waveband high-frequency head with four local oscillators |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320172921 CN203151651U (en) | 2013-03-21 | 2013-03-21 | Single-output Ku-waveband high-frequency head with four local oscillators |
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| Publication Number | Publication Date |
|---|---|
| CN203151651U true CN203151651U (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320172921 Expired - Fee Related CN203151651U (en) | 2013-03-21 | 2013-03-21 | Single-output Ku-waveband high-frequency head with four local oscillators |
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| Country | Link |
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| CN (1) | CN203151651U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259990A (en) * | 2013-03-21 | 2013-08-21 | 宁波森富机电制造有限公司 | Four-local-oscillator and single-output Ku-waveband tuner |
-
2013
- 2013-03-21 CN CN 201320172921 patent/CN203151651U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259990A (en) * | 2013-03-21 | 2013-08-21 | 宁波森富机电制造有限公司 | Four-local-oscillator and single-output Ku-waveband tuner |
| CN103259990B (en) * | 2013-03-21 | 2016-04-06 | 宁波森富机电制造有限公司 | A kind of four local oscillator lists export Ku wave band tuner |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20170321 |
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| CF01 | Termination of patent right due to non-payment of annual fee |