CN105578090A - Dual output high-frequency tuner allowing hybrid input of ground wave signal and satellite signal - Google Patents
Dual output high-frequency tuner allowing hybrid input of ground wave signal and satellite signal Download PDFInfo
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- CN105578090A CN105578090A CN201610046020.1A CN201610046020A CN105578090A CN 105578090 A CN105578090 A CN 105578090A CN 201610046020 A CN201610046020 A CN 201610046020A CN 105578090 A CN105578090 A CN 105578090A
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- signal
- satellite
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- frequency tuner
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
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- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The invention discloses a dual output high-frequency tuner allowing hybrid input of a ground wave signal and a satellite signal. The dual output high-frequency tuner is connected with a satellite signal receiving antenna and a ground wave antenna, and comprises a satellite signal frequency reduction circuit connected with the signal output end of the satellite signal receiving antenna. Two signal output ends of the satellite signal frequency reduction circuit are respectively connected with two signal output ends of the high-frequency tuner. The signal output end of the ground wave antenna is connected with two parallel low pass filters. Output ends of the two low pass filters are respectively connected with two signal output ends of the satellite signal frequency reduction circuit. A ground wave antenna is connected to the input end of the high-frequency tuner, and the ground wave signal is mixed with the satellite signal with the frequency reduced, so as to be output to two receivers, so that ordinary high-frequency tuner can receive both satellite signal and ground high definition signal. The dual output high-frequency tuner has the high suppression filter function, can better isolate the ground signal from the satellite signal so as to prevent signal crosstalk, is convenient to install and is simple to use.
Description
Technical field
The present invention relates to technical field of satellite communication, particularly relate to a kind of high-frequency tuner.
Background technology
High-frequency tuner is in the market all the Signal reception for satellite band, can not mix and receive surface wave frequency signal.
Summary of the invention
Technical problem to be solved by this invention is to provide that a kind of structure is simple, volume is little and the dual output high-frequency tuner of the surface wave signal that output port signal can not interfere with each other and satellite-signal Mixed design.
For solving the problems of the technologies described above, technical scheme of the present invention is: the dual output high-frequency tuner of a kind of surface wave signal and satellite-signal Mixed design, be connected with satellite signal receiving antenna and terrestrial wave antenna, comprise the satellite-signal frequency down circuit be connected with the signal output part of described satellite signal receiving antenna, described satellite-signal frequency down circuit has the identical signal output part of two output signals, and the signal output part of described satellite-signal frequency down circuit is connected with the signal output part of described high-frequency tuner;
The signal output part of described terrestrial wave antenna is connected with two low pass filters, and the output of two described low pass filters is connected with two signal output parts of described satellite-signal frequency down circuit respectively.
As the preferred technical scheme of one, described satellite-signal frequency down circuit comprises the H road low noise amplifier circuit and V road low noise amplifier circuit that are connected respectively with the horizontal signal output of described satellite signal receiving antenna and vertical signal output, the output of described H road low noise amplifier circuit is connected with two H road band pass filters, the output of described V road low noise amplifier circuit is connected with two V road band pass filters, the output of each described H road band pass filter connects a H blender, the output of each described V road band pass filter connects a V blender, a media resonant oscillator is connected with between a described H blender and a described V blender, H blender described in another and be also connected with a media resonant oscillator between V blender described in another, the output of the output of two described H blenders and two described V blenders enters two simultaneously and goes out to switch IC and be connected with four, described four enter two two signal output parts going out to switch IC is connected respectively by the signal output part of high pass filter with described high-frequency tuner.
As the preferred technical scheme of one, described H road low noise amplifier circuit comprises the low noise amplifier of three series connection.
As the preferred technical scheme of one, described V road low noise amplifier circuit comprises the low noise amplifier of three series connection.
As the preferred technical scheme of one, the output and described four of each described H blender enters between two inputs going out to switch IC to be connected with radio frequency amplifier.
As the preferred technical scheme of one, the output and described four of each described V blender enters between two inputs going out to switch IC to be connected with radio frequency amplifier.
As the preferred technical scheme of one, described four enter two goes out to switch between two outputs of IC and the input of described high pass filter and is connected with intermediate frequency amplifier.
Owing to have employed technique scheme, the dual output high-frequency tuner of a kind of surface wave signal and satellite-signal Mixed design, be connected with satellite signal receiving antenna and terrestrial wave antenna, comprise the satellite-signal frequency down circuit be connected with the signal output part of described satellite signal receiving antenna, described satellite-signal frequency down circuit has the identical signal output part of two output signals, and the signal output part of described satellite-signal frequency down circuit is connected with the signal output part of described high-frequency tuner; The signal output part of described terrestrial wave antenna is connected with two low pass filters, and the output of two described low pass filters is connected with two signal output parts of described satellite-signal frequency down circuit respectively; The present invention is a kind of high-frequency tuner based on VHF, UHF and KU frequency range, by connecting the input of ground wave band antenna to high-frequency tuner, by VHF and UHF waveband signal input high-frequency tuner, mix with the satellite-signal after frequency reducing, output to two receivers respectively; Solving common high-frequency tuner can only receiving satellite signal, can not receive the problem of terrestrial high definition signal; The present invention is with high rejects trap function, and ground signal and satellite-signal can be kept apart well, anti-stop signal is harassed; And easy for installation, use simple.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the embodiment of the present invention;
Fig. 2 is the application connection layout of the embodiment of the present invention;
In figure: 11-satellite signal receiving antenna; 12-terrestrial wave antenna; 121-low pass filter; 13-high-frequency tuner; 2-low noise amplifier; 31-H road band pass filter; 32-V road band pass filter; 41-H blender; 42-V blender; 5-media resonant oscillator; 6-tetra-enters two and goes out to switch IC; 7-radio frequency amplifier; 8-high pass filter; 9-intermediate frequency amplifier.
Embodiment
Below in conjunction with drawings and Examples, set forth the present invention further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present invention.Undoubtedly, those of ordinary skill in the art can recognize, when without departing from the spirit and scope of the present invention, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection range of claim.
As depicted in figs. 1 and 2, the dual output high-frequency tuner of a kind of surface wave signal and satellite-signal Mixed design, be connected with satellite signal receiving antenna 11 and terrestrial wave antenna 12, comprise the satellite-signal frequency down circuit be connected with the signal output part of described satellite signal receiving antenna 11, described satellite-signal frequency down circuit has the identical signal output part of two output signals, and the signal output part of described satellite-signal frequency down circuit is connected with two signal output parts of described high-frequency tuner 13 respectively; Described satellite-signal frequency down circuit comprises the H road low noise amplifier circuit and V road low noise amplifier circuit that are connected respectively with the H signal output of described satellite signal receiving antenna 11 and V signal output, described H road low noise amplifier circuit comprises the low noise amplifier 2 of three series connection, and described V road low noise amplifier circuit comprises the low noise amplifier 2 of three series connection; the output of described H road low noise amplifier circuit is connected with two H road band pass filters 31 in parallel, the output of described V road low noise amplifier circuit is connected with two V road band pass filters 32 in parallel, the output of each described H road band pass filter 31 connects a H blender 41, the output of each described V road band pass filter 32 connects a V blender 42, a media resonant oscillator 5 is connected with between a described H blender 41 and a described V blender 42, H blender 41 described in another and be also connected with a media resonant oscillator 5 between V blender 42 described in another, the output of the output of two described H blenders 41 and two described V blenders 42 enters two simultaneously and goes out to switch IC6 and be connected with four, the output and described four of each described H blender 41 enters between two inputs going out to switch IC6 to be connected with radio frequency amplifier 7, the output and described four of each described V blender 42 enters between two inputs going out to switch IC6 to be connected with radio frequency amplifier 7, described four enter two two signal output parts going out to switch IC6 is connected respectively by the signal output part of high pass filter 8 with described high-frequency tuner 13, described four enter two goes out to switch between two outputs of IC6 and the input of described high pass filter 8 and is connected with intermediate frequency amplifier 9.
The output that the signal output part of described terrestrial wave antenna 12 is connected with two low pass filters, 121, two described low pass filters 121 is connected with two signal output parts of described satellite-signal frequency down circuit respectively.
The present invention is a kind of high-frequency tuner 13 based on VHF, UHF and KU frequency range, by connecting the input of ground wave band antenna to high-frequency tuner 13, by VHF and UHF waveband signal input high-frequency tuner 13, mix with the satellite-signal after frequency reducing, output to two receivers respectively; Solving common high-frequency tuner 13 can only receiving satellite signal, can not receive the problem of terrestrial high definition; The present invention is with high rejects trap function, and ground signal and satellite-signal can be kept apart well, anti-stop signal is harassed; And easy for installation, use simple.
Compared with prior art, the present embodiment has following advantage:
1. the present embodiment both can output satellite signal, also can export surface wave signal.
2. use a whole set of receiving system of the present embodiment to install simple, every platform receiver only needs single line cable to connect.
3. high-frequency tuner 13 inside described in the present embodiment has high rejects trap, effectively improves antijamming capability.
4. the present embodiment can provide signal to dual stage receiver simultaneously, and interference-free impact mutually.
5. the present embodiment has the performance characteristics such as low noise, high-gain, high-isolation, and the satellite programming that can adapt to various strong and weak signal receives.
6. the present embodiment is applicable to global most satellite television receiving system
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (7)
1. the dual output high-frequency tuner of a surface wave signal and satellite-signal Mixed design, it is characterized in that: be connected with satellite signal receiving antenna and terrestrial wave antenna, comprise the satellite-signal frequency down circuit be connected with the signal output part of described satellite signal receiving antenna, described satellite-signal frequency down circuit has the identical signal output part of two output signals, and the signal output part of described satellite-signal frequency down circuit is connected with the signal output part of described high-frequency tuner;
The signal output part of described terrestrial wave antenna is connected with two low pass filters, and the output of two described low pass filters is connected with two signal output parts of described satellite-signal frequency down circuit respectively.
2. the dual output high-frequency tuner of surface wave signal as claimed in claim 1 and satellite-signal Mixed design, it is characterized in that: described satellite-signal frequency down circuit comprises the H road low noise amplifier circuit and V road low noise amplifier circuit that are connected respectively with the horizontal signal output of described satellite signal receiving antenna and vertical signal output, the output of described H road low noise amplifier circuit is connected with two H road band pass filters, the output of described V road low noise amplifier circuit is connected with two V road band pass filters, the output of each described H road band pass filter connects a H blender, the output of each described V road band pass filter connects a V blender, a media resonant oscillator is connected with between a described H blender and a described V blender, H blender described in another and be also connected with a media resonant oscillator between V blender described in another, the output of the output of two described H blenders and two described V blenders enters two simultaneously and goes out to switch IC and be connected with four, described four enter two two signal output parts going out to switch IC is connected respectively by the signal output part of high pass filter with described high-frequency tuner.
3. the dual output high-frequency tuner of surface wave signal as claimed in claim 2 and satellite-signal Mixed design, is characterized in that: described H road low noise amplifier circuit comprises the low noise amplifier of three series connection.
4. the dual output high-frequency tuner of surface wave signal as claimed in claim 2 and satellite-signal Mixed design, is characterized in that: described V road low noise amplifier circuit comprises the low noise amplifier of three series connection.
5. the dual output high-frequency tuner of surface wave signal as claimed in claim 2 and satellite-signal Mixed design, is characterized in that: the output and described four of each described H blender enters between two inputs going out to switch IC to be connected with radio frequency amplifier.
6. the dual output high-frequency tuner of surface wave signal as claimed in claim 2 and satellite-signal Mixed design, is characterized in that: the output and described four of each described V blender enters between two inputs going out to switch IC to be connected with radio frequency amplifier.
7. the surface wave signal as described in claim as arbitrary in claim 2 to 6 and the dual output high-frequency tuner of satellite-signal Mixed design, is characterized in that: described four enter two goes out to switch between two outputs of IC and the input of described high pass filter and be connected with intermediate frequency amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610046020.1A CN105578090A (en) | 2016-01-22 | 2016-01-22 | Dual output high-frequency tuner allowing hybrid input of ground wave signal and satellite signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610046020.1A CN105578090A (en) | 2016-01-22 | 2016-01-22 | Dual output high-frequency tuner allowing hybrid input of ground wave signal and satellite signal |
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| Publication Number | Publication Date |
|---|---|
| CN105578090A true CN105578090A (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610046020.1A Pending CN105578090A (en) | 2016-01-22 | 2016-01-22 | Dual output high-frequency tuner allowing hybrid input of ground wave signal and satellite signal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068076A (en) * | 2018-10-11 | 2018-12-21 | 珠海佳讯创新科技股份有限公司 | The high-frequency tuner of Ku band satellite signal is transmitted and distributed by coaxial cable |
| CN112601057A (en) * | 2020-11-27 | 2021-04-02 | 浙江盛洋科技股份有限公司 | Anti 5G signal interference device that removes of C wave band |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5774194A (en) * | 1993-06-03 | 1998-06-30 | Deutsche Thomson-Brandt Gmbh | Terrestrial and satellite television reception tuner |
| CN201075398Y (en) * | 2007-08-29 | 2008-06-18 | 郴州高斯贝尔数码科技有限公司 | Ku frequency band four-local oscillator two-way output low noise frequency demultiplier |
| CN201328153Y (en) * | 2008-12-05 | 2009-10-14 | 中山圣马丁电子元件有限公司 | Multi-functional KU frequency-band satellite receiving high-frequency head and corresponding receiving device |
| CN204119356U (en) * | 2014-08-23 | 2015-01-21 | 珠海高星数码科技有限公司 | A kind of single output satellite signal high-frequency tuner |
| CN204258729U (en) * | 2014-06-03 | 2015-04-08 | 中山市瀚扬电子科技有限公司 | C-band bipolar double-local-oscillator two-output low-noise frequency demultiplier |
-
2016
- 2016-01-22 CN CN201610046020.1A patent/CN105578090A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5774194A (en) * | 1993-06-03 | 1998-06-30 | Deutsche Thomson-Brandt Gmbh | Terrestrial and satellite television reception tuner |
| CN201075398Y (en) * | 2007-08-29 | 2008-06-18 | 郴州高斯贝尔数码科技有限公司 | Ku frequency band four-local oscillator two-way output low noise frequency demultiplier |
| CN201328153Y (en) * | 2008-12-05 | 2009-10-14 | 中山圣马丁电子元件有限公司 | Multi-functional KU frequency-band satellite receiving high-frequency head and corresponding receiving device |
| CN204258729U (en) * | 2014-06-03 | 2015-04-08 | 中山市瀚扬电子科技有限公司 | C-band bipolar double-local-oscillator two-output low-noise frequency demultiplier |
| CN204119356U (en) * | 2014-08-23 | 2015-01-21 | 珠海高星数码科技有限公司 | A kind of single output satellite signal high-frequency tuner |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109068076A (en) * | 2018-10-11 | 2018-12-21 | 珠海佳讯创新科技股份有限公司 | The high-frequency tuner of Ku band satellite signal is transmitted and distributed by coaxial cable |
| CN112601057A (en) * | 2020-11-27 | 2021-04-02 | 浙江盛洋科技股份有限公司 | Anti 5G signal interference device that removes of C wave band |
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Application publication date: 20160511 |
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