CN202634431U - Single-satellite double-output KU-waveband satellite tuner - Google Patents
Single-satellite double-output KU-waveband satellite tuner Download PDFInfo
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- CN202634431U CN202634431U CN 201220188401 CN201220188401U CN202634431U CN 202634431 U CN202634431 U CN 202634431U CN 201220188401 CN201220188401 CN 201220188401 CN 201220188401 U CN201220188401 U CN 201220188401U CN 202634431 U CN202634431 U CN 202634431U
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Abstract
The utility model relates to a single-satellite double-output KU-waveband satellite tuner that is arranged between an antenna and a satellite receiver. The single-satellite double-output KU-waveband satellite tuner comprises a housing, two output interfaces, a signal processing circuit and a feed source; and horizontal polarization and vertical polarization signal probes are respectively installed inside the feed source. The tuner is characterized in that signals of the horizontal polarization and vertical polarization signal probes are transmitted to the signal processing signal that has two paths of output lines; the two output lines are respectively connected to two integrated ICs with the PLL phase-lock technology. According to the single-satellite double-output KU-waveband satellite tuner, the latest PLL phase-lock technology on the market current is utilized to integrate ICs, the integration of original separation-type electronic components can be realized effectively. The highly integrated IC chip is utilized and local vibration signals are integrated into one IC chip; and a high frequency amplifier is also integrated together. Therefore, the number of the electronic components at the periphery of the circuit can be reduced and the circuit wiring becomes simple and effective.
Description
[technical field]
The utility model relates to the satellite receiving equipment field, relates in particular to the tuner of the integrated IC with PLL Phase Lock Technique.
[background technology]
Along with the development of global satellite industry and opening gradually of China's direct broadcasting satellite policy, China's direct broadcasting satellite market demand will sharply rise.The complete satellite earth receiving station of a cover that satellite audiovisual receiving system commonly used all is made up of parabolic antenna, tuner, digital satellite receiver in the prior art.Because what the satellite audiovisual transmitted employing is microwave; Has optics straightline propagation characteristic; For C frequency range and Ku frequency range, generally to adopt to have the very parabolic antenna of highly directive, the effect of antenna is to utilize the principle of geometric optics to assemble to focus from aerial satellite-signal energy reflection; Feed by being on the focus flows to the tuner that is right after thereafter with the electric wave signal conduction that desire receives; The effect of tuner is that the small-signal that antenna is received is amplified, and respectively with amplifying output after signal frequency conversion to 950～1450MHz of C frequency range 3.4～4.2GHz, Ku frequency range 10.75～12.75GHz, the 950～2150MHz frequency range, is sent to satellite audio visual signal receiver with coaxial cable; Satellite audio visual signal receiver carries out demodulation with the satellite-signal that tuner transports again, demodulates satellite image signal and audio signal.At present, all satellite tuners can be divided into single local oscillator and two local oscillator tuners according to the local oscillator classification; Can be divided into single polarization according to polarization mode, dual polarization, linear polarization and circular polarization tuner; Can be divided into single output according to output, dual output, four outputs and eight output tuners; Can be divided into the C frequency range again according to application band, KU frequency range and KA frequency range tuner.
In the manufacturing process of traditional KU band satellite low-converter; Because electronic devices and components all are separate types, in the process of device assembling and assembling, need use a large amount of peripheral cells and assemble, partly need design and part in addition for wiring; Expend cost; And in manufacture process, need great amount of manpower and material resources to support to produce, production efficiency is low, and the product fraction defective is also than higher.
[summary of the invention]
The utility model has proposed a kind of single star dual output KU band satellite tuner of simplifying the treatment circuit structure, saving circuit peripheral electron components and parts to above problem.
The technical scheme of the utility model is:
A kind of single star dual output KU band satellite tuner; Be arranged between antenna and the DVB; Comprise shell, be arranged on 2 output interfaces on the shell, the signal processing circuit that is arranged on enclosure and feed; Horizontal polarization and perpendicular polarization signal probe are housed respectively in feed, it is characterized in that, said horizontal polarization signal probe and perpendicular polarization signal probe signal are transferred to signal processing circuit; Said signal processing circuit has the two-way outlet line, and the two-way output circuit is connected respectively on two integrated IC that have a PLL Phase Lock Technique.
Said signal processing circuit comprises the two-way low noise amplifier that is connected with feed and respectively horizontal line polarized signal and vertical line polarized signal is amplified, and is connected with No. one band pass filter on the two-way low noise amplifier respectively.
Said low noise amplifier adopts three grades of low noise amplifiers that are connected in series mutually, and the two-stage low noise amplifier is shared before adopting, after insert the 3rd utmost point low noise amplifier again, constitute the connecting circuit of four road three-stage cascade low noise amplifiers.
Said integrated IC inside also is provided with an intermediate frequency amplifier, can signal be carried out undistorted amplification, satisfies the demand of external equipment to the full extent.
The beneficial effect of the utility model is: satellite tuner under single star dual output KU wave band is to utilize the up-to-date in the market integrated IC of PLL Phase Lock Technique, realizes an integrated effective method of original separate type electronic devices and components.So-called PLL PHASE-LOCKED LOOP PLL TECHNIQUE is a kind of technology of locking frequency; Mainly be being the basis with reference to crystal oscillator frequency, the mode that adopts frequency multiplication to take advantage of reaches the frequency of our demand, and in circuit, has added phase-locked loop circuit; Make the frequency that finally obtains to be locked in certain scope; Can the occurrence frequency drift phenomenon, utilize highly integrated IC chip effectively to simplify original circuit, simple circuit layout and omit the line fittings that circuit is used in connecting.
[description of drawings]
Fig. 1 is the utility model circuit theory diagrams.
Wherein: 01, the first polarization probe; 11, the second polarization probe; 21,22, first order low noise amplifier; 31,32, second level low noise amplifier; The 41,42,43,44, the 3rd utmost point low noise amplifier; 51,52, band pass filter; 61,62, integrated IC; 71, crystal oscillator.
[embodiment]
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.
Embodiment 1:
A kind of single star dual output KU band satellite tuner; Be arranged between antenna and the DVB; Comprise shell, be arranged on 2 output interfaces on the shell, the signal processing circuit that is arranged on enclosure and feed; Horizontal polarization and perpendicular polarization signal probe are housed respectively in feed, utilize the feed receiving satellite signal, signal is exported to the first polarization probe 01 and the second polarization probe 11 through the output line road then; According to Fig. 1; Perpendicular polarization signal and horizontal polarization signal output to signal processing circuit respectively after the first polarization probe 01 and the second polarization probe 11 are coupled, said signal processing circuit has the two-way outlet line, and the two-way output circuit is connected respectively on two integrated IC chips that have a PLL Phase Lock Technique.
Said signal processing circuit comprises the two-way low noise amplifier that is connected with feed and respectively horizontal line polarized signal and vertical line polarized signal is amplified, and is connected with No. one band pass filter on the two-way low noise amplifier respectively.Wherein all comprise first order low noise amplifier and second level low noise amplifier and third level low noise amplifier in each road low noise amplifier, two-way low noise amplifier connected mode is first order low noise amplifier 21 and 22, and second level low noise amplifier 31 and 32 all is shared; The third level low noise amplifier of back divides original two-way for four the tunnel, is connected respectively to third level low noise amplifier 41,42; 43,44, each second level low noise amplifier is connected to two grade low noise amplifiers of being locked in a tie for third; So just formed the combined effect of four road three-stage cascade low noise amplifiers; Be respectively first group of low noise amplifier 21,31,41; Second group of low noise amplifier 21,31,42; The 3rd group of low noise amplifier 22,32,22,32,44 4 groups of low noise amplifiers of 43, the four groups of low noise amplifiers all adopt the mode that is connected in series each other to form.Respectively vertical line polarized signal (VLP) and horizontal line polarized signal (HLP) are carried out the signal amplification through first order low noise amplifier 21 and 22, make its gain of satisfying system requirements and noise figure.
Passed through band pass filter 51.52 two-way circuit afterwards and be connected respectively to two integrated IC61.62 that have the PLL Phase Lock Technique, every integrated IC provides an output signal, so two integrated IC just can realize the function that two-way is exported.The mixing of incoming frequency, amplification and lock be function mutually, all in the inner realization of integrated IC.Because when realizing Phase Lock Technique, a reference frequency need be provided in the integrated circuit outside, and these two integrated shared external reference crystal oscillators 71 that have the PLL Phase Lock Technique.The beneficial effect of the utility model is: satellite tuner under single star dual output KU wave band is to utilize the up-to-date in the market integrated IC of PLL Phase Lock Technique, realizes an integrated effective method of original separate type electronic devices and components.Utilize highly integrated IC chip; This vibration set of signals of original separate type is become in IC chip; Also a high-frequency amplifier is also integrated simultaneously, so not only reduced the peripheral electronic devices and components quantity of circuit, also make wiring more simple and efficient; Such design has effectively been simplified original circuit, the line fittings of using during abbreviation circuit layout and omission circuit connect.Directly reduced human resources and instrument input, significantly improved production efficiency and practiced thrift cost.
Claims (4)
1. single star dual output KU band satellite tuner; Be arranged between antenna and the DVB; Comprise shell, be arranged on 2 output interfaces on the shell, the signal processing circuit that is arranged on enclosure and feed; Horizontal polarization and perpendicular polarization signal probe are housed respectively in feed, it is characterized in that, said horizontal polarization signal probe and perpendicular polarization signal probe signal are transferred to signal processing circuit; Said signal processing circuit has the two-way outlet line, and the two-way output circuit is connected respectively on two integrated IC that have a PLL Phase Lock Technique.
2. according to the said single star dual output KU band satellite tuner of claim 1; It is characterized in that; Said signal processing circuit comprises the two-way low noise amplifier that is connected with feed and respectively horizontal line polarized signal and vertical line polarized signal is amplified, and is connected with No. one band pass filter on the two-way low noise amplifier respectively.
3. according to the said single star dual output KU band satellite tuner of claim 2; It is characterized in that; Said low noise amplifier adopts three grades of low noise amplifiers that are connected in series mutually; The two-stage low noise amplifier is shared before adopting, after insert the 3rd utmost point low noise amplifier again, constitute the connecting circuit of four road three-stage cascade low noise amplifiers.
4. according to the said single star dual output KU band satellite tuner of claim 1, it is characterized in that said integrated IC inside also is provided with an intermediate frequency amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220188401 CN202634431U (en) | 2012-04-28 | 2012-04-28 | Single-satellite double-output KU-waveband satellite tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220188401 CN202634431U (en) | 2012-04-28 | 2012-04-28 | Single-satellite double-output KU-waveband satellite tuner |
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| Publication Number | Publication Date |
|---|---|
| CN202634431U true CN202634431U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220188401 Expired - Fee Related CN202634431U (en) | 2012-04-28 | 2012-04-28 | Single-satellite double-output KU-waveband satellite tuner |
Country Status (1)
| Country | Link |
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| CN (1) | CN202634431U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108736155A (en) * | 2017-04-17 | 2018-11-02 | 东莞百电子有限公司 | A kind of novel high clutter reduction S frequency range tuners |
| CN110581713A (en) * | 2014-05-16 | 2019-12-17 | 高通股份有限公司 | Radio Frequency (RF) front end with multiple low noise amplifier modules |
-
2012
- 2012-04-28 CN CN 201220188401 patent/CN202634431U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581713A (en) * | 2014-05-16 | 2019-12-17 | 高通股份有限公司 | Radio Frequency (RF) front end with multiple low noise amplifier modules |
| CN110581713B (en) * | 2014-05-16 | 2022-01-28 | 高通股份有限公司 | Radio Frequency (RF) front end with multiple low noise amplifier modules |
| CN108736155A (en) * | 2017-04-17 | 2018-11-02 | 东莞百电子有限公司 | A kind of novel high clutter reduction S frequency range tuners |
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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: 20121226 Termination date: 20190428 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |