CN207677874U - C-band or so polarization high-gain low-noise list local oscillator IC frequency demultipliers - Google Patents
C-band or so polarization high-gain low-noise list local oscillator IC frequency demultipliers Download PDFInfo
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- CN207677874U CN207677874U CN201721916218.7U CN201721916218U CN207677874U CN 207677874 U CN207677874 U CN 207677874U CN 201721916218 U CN201721916218 U CN 201721916218U CN 207677874 U CN207677874 U CN 207677874U
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Abstract
The utility model provides C-band or so polarization high-gain low-noise list local oscillator IC frequency demultipliers, including tuner, integrated circuit board is provided in tuner, integrated circuit board is equipped with RDA3570 and controls chip, it is horizontal, vertical polarization signal is exported after RDA3570 controls chip processing by intermediate frequency amplifier, RDA3570 controls chip and compares its frequency and phase differential between reference-input signal before intermediate frequency amplifier amplifies output signal and be that 5150MHZ local oscillators are adjusted output signal by frequency, output signal is exported after intermediate frequency amplifier amplifies again.The utility model passes through, and need not manually adjust local oscillator value, by way of IC starting of oscillations, makes frequency more stable, user-friendly.
Description
Technical field
The utility model is related to a kind of frequency demultipliers, more particularly to C-band or so polarization high-gain low-noise list local oscillator IC drops
Frequency device belongs to communication frequency demultiplier technical field.
Background technology
The operation principle that satellite antenna receives satellite television is to collect faint satellite-signal using satellite antenna, and should
Satellite-signal is reflected into the low noise frequency reducer being arranged in disc-shaped antenna focal point, and frequency demultiplier is essential to watching satellite TV's TV
Device.Low noise frequency reducer amplifies this concentration signal, and rf frequency is down to the intermediate frequency of 1GHZ-2GHZ or so, then passes through
Receiver or top box of digital machine are sent to by cable.Receiver selectes the frequency to be watched in signal, multiple through amplification demodulation
After original is at image and voice signal, inputs TV and play program.
But when receiving horizontal signal and vertical signal at the same time and carrying out oscillation treatment to signal, interference is easy tod produce,
Make that the signal gain of output is low, noise is high.
Utility model content
In view of this, a kind of C-band of the utility model offer or so polarization high-gain low-noise list local oscillator IC frequency demultipliers, with
Solve the problems, such as that prior art gain when receiving and processing multiple signals is low, noise is high.
Specifically, the utility model is achieved by the following technical solution：
C-band or so polarization high-gain low-noise list local oscillator IC frequency demultipliers, including shell, which is characterized in that the frequency reducing
Device includes：
Horizontal polarized wave receiver, vertically polarized wave receiver, local oscillator, intermediate frequency amplifier, RCV convolution controls
Device, the horizontal polarized wave receiver, vertically polarized wave receiver are connect with local oscillator respectively, local oscillator and RCV
The controller that circles round connects；
C-band as described above or so polarization high-gain low-noise list local oscillator IC frequency demultipliers, which is characterized in that the shell
Be equipped with waveguide and with the tuner that even waveguide cylinder connect, tuner is equipped with casing, is provided in tuner integrated electric
Road plate is connected with the export head exported for signal on casing；The integrated circuit board is equipped with RDA3570 and controls chip, institute
It states horizontal polarized wave receiver, the level that vertically polarized wave receiver receives, vertical polarization signal and controls core through the RDA3570
It is exported by the intermediate frequency amplifier after piece processing, wherein the RDA3570 controls chip amplifies output letter in intermediate frequency amplifier
Compare its frequency and phase differential between reference-input signal before number and is 5150MHZ local oscillators pair by frequency
Output signal is adjusted, then output signal is exported after intermediate frequency amplifier amplifies.
C-band as described above or so polarization high-gain low-noise list local oscillator IC frequency demultipliers, which is characterized in that the frequency reducing
Device further includes：
It is connect with horizontal polarized wave receiver, the horizontal polarization twt amplifier for being amplified to horizontal polarized wave；With
And
It is connect with vertically polarized wave receiver, the vertical polarization twt amplifier for being amplified to vertically polarized wave.
C-band as described above or so polarization high-gain low-noise list local oscillator IC frequency demultipliers, which is characterized in that the frequency reducing
Device further includes：
Be separately connected with horizontal polarized wave receiver, vertically polarized wave receiver, local oscillator, for polarized wave into
The vertical-horizontal signal mixer amplifier of row amplification.
The utility model embodiment, by receiving horizontal polarized wave and vertically polarized wave, and by the horizontal polarized wave of reception
Local oscillation is carried out after being mixed with vertically polarized wave, RDA3570 controls chip to be compared before intermediate frequency amplifier amplifies output signal
Compared with its frequency and phase differential between reference-input signal and by frequency be 5150MHZ local oscillators to output signal
It is adjusted, then output signal is exported after intermediate frequency amplifier amplifies, local oscillator value need not be manually adjusted, pass through IC starting of oscillations
Mode makes frequency more stable, user-friendly.
2, using IC integrated circuits, frequency is stablized relatively, not will produce frequency drift.
3, the design can in output cable line length to hundred meters it is lossless.
4, local oscillator value need not be manually adjusted, by way of IC starting of oscillations, makes frequency more stable.
5, when front-end signal enters amplifier, the previous necessary miniature antenna of design is packed into fixed inside plastic plug this frequency demultiplier
Inside casing, after be welded in PCB, miniature antenna is directly welded in PCB now, it is not necessary to the simple and convenient assemblings of plastic plug, cost
It reduces, efficiency improves, and need not manually wear in PIN needle to plastic cement hole, directly by needle capillary to PCB, then assemble, facilitate letter
It is single.
Description of the drawings
Fig. 1 is a kind of frequency demultiplier circuit block diagram shown in one exemplary embodiment of the utility model；
Fig. 2 is a kind of frequency demultiplier circuit block diagram shown in the another exemplary embodiment of the utility model；
Fig. 3 is a kind of frequency demultiplier circuit block diagram shown in the another exemplary embodiment of the utility model；
Fig. 4 is a kind of frequency demultiplier circuit block diagram shown in the another exemplary embodiment of the utility model.
Fig. 5 is a kind of frequency demultiplier circuit block diagram shown in the another exemplary embodiment of the utility model.
Specific implementation mode
It is as shown in Figure 1 a kind of structure chart of frequency demultiplier shown in one exemplary embodiment of the utility model, for the ease of
Illustrate only to show with the relevant part of the utility model embodiment, the frequency demultiplier, including：
Horizontal polarized wave receiver 101, vertically polarized wave receiver 102, local oscillator 103, RCV convolution controllers
104, the horizontal polarized wave receiver 101, vertically polarized wave receiver 102 are connect with local oscillator 103 respectively, and the machine is shaken
Device 103 is swung to connect with RCV convolution controllers 104.
In the utility model embodiment, frequency demultiplier includes with lower component：Horizontal polarized wave receiver 101, vertical polarization
Wave receiver 102, local oscillator 103, RCV convolution controllers 104, wherein horizontal polarized wave receiver 101, vertical polarization
Wave receiver 102 is connect with local oscillator 103 respectively, and local oscillator 103 is connect with RCV convolution controllers 104.Specific
Use during, horizontal polarized wave receiver and vertically polarized wave reception the horizontal polarized wave of reception and vertically polarized wave are mixed
It is combined into polarized wave, polarized wave is input to RCV convolution controllers after the concussion of local oscillator.
It should be pointed out that the frequency of local oscillator can be set according to the needs of actual use, the utility model
Embodiment does not limit herein.Preferably, the frequency of the local oscillator is 5150MHZ.
The utility model embodiment receives horizontal polarized wave and vertically polarized wave by two complete equipments, and will receive respectively
Horizontal polarized wave and vertically polarized wave mixing after carry out local oscillation so that the independent work of horizontal polarized wave and vertically polarized wave
Make, do not interfere with each other, not only reception polarized wave is more accurate, and the polarized wave high gain of output, noise are low.
It is illustrated in figure 2 a kind of structure chart of frequency demultiplier shown in the another exemplary embodiment of the utility model, the drop
Frequency device further includes：
It is connect with horizontal polarized wave receiver 101, the horizontal polarization twt amplifier for being amplified to horizontal polarized wave
105；And
It is connect with vertically polarized wave receiver 102, the vertical polarization twt amplifier for being amplified to vertically polarized wave
106。
It, can be after receiver in order to make the polarized wave of reception be convenient for subsequent processing in the utility model embodiment
Processing is amplified to polarized wave, including：Horizontal polarization twt amplifier, vertical polarization twt amplifier, respectively to horizontal polarized wave,
Vertically polarized wave is amplified processing.
It is illustrated in figure 3 a kind of structure chart of frequency demultiplier shown in the another exemplary embodiment of the utility model, it is described
Frequency demultiplier further includes：
It is separately connected, is used for horizontal polarized wave receiver 101, vertically polarized wave receiver 102, local oscillator 103
The vertical-horizontal signal mixer amplifier 107 that polarized wave is amplified.
It is illustrated in figure 4 a kind of structure chart of frequency demultiplier shown in the another exemplary embodiment of the utility model, it is described
Frequency demultiplier further includes：
The IF amplifiers being separately connected with local oscillator 103RCV convolution controllers 104.
In the utility model embodiment, IF amplifiers are connected with after local oscillator, by the processing of IF amplifiers,
Polarized wave Jing Guo oscillation treatment can be amplified, keep the polarized wave of output clearer.
As shown in figure 5, another example of the utility model.
Frequency demultiplier shell be equipped with waveguide and with the tuner that even waveguide cylinder connect, tuner is equipped with casing, height
It is provided with integrated circuit board in frequency head, the export head exported for signal is connected on casing；
Further include horizontal polarized wave receiver, vertically polarized wave receiver, local oscillator 901, intermediate frequency amplifier 902,
RCV convolution controllers, horizontal polarized wave receiver, vertically polarized wave receiver are connect with local oscillator 901 respectively, and the machine is shaken
Device 901 is swung to connect with RCV convolution controllers.
Further include being connect with horizontal polarized wave receiver, the horizontal polarized wave amplification for being amplified to horizontal polarized wave
Device 801；And it is connect with vertically polarized wave receiver, the vertical polarization twt amplifier for being amplified to vertically polarized wave
802；
Be separately connected with horizontal polarized wave receiver, vertically polarized wave receiver, local oscillator, for polarized wave into
The vertical-horizontal signal mixer amplifier 803 of row amplification.
Integrated circuit board is equipped with RDA3570 and controls chip 804, horizontal polarized wave receiver, vertically polarized wave receiver
The level of reception, vertical polarization signal pass through intermediate frequency amplifier 904 (IF amplifiers) after RDA3570 control chips 804 are handled
Output, wherein RDA3570 control chip 804 intermediate frequency amplifier amplify output signal before compare itself and reference-input signal it
Between frequency and phase differential and by frequency be 5150MHZ local oscillators output signal is adjusted, then will output letter
It number is exported after intermediate frequency amplifier amplifies.Wherein RDA3570 control chips 804 are connected with crystal oscillator locking phase module, RDA3570 controls
Chip 804 is adjusted output signal by controlling the local frequency that the generation of crystal oscillator locking phase module matches, until output letter
Number frequency and phase and reference-input signal between frequency and Phase synchronization and after being consistent, then export.
It is further improved：The antenna of frequency demultiplier is directly welded on integrated circuit board (PCB), it is not necessary to which plastic plug is simple
Ease of assembly, cost reduction, efficiency are improved, need not manually be worn in PIN needle to plastic cement hole, directly by needle capillary to PCB, then
Assembling, it is convenient and simple.
The apparatus embodiments described above are merely exemplary, wherein the unit illustrated as separating component can
It is physically separated with being or may not be, the component shown as unit may or may not be physics list
Member, you can be located at a place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of module realize the purpose of the utility model.Those of ordinary skill in the art are not paying creation
Property labour in the case of, you can to understand and implement.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent substitution, improvement and etc. done should be included in the utility model
Within the scope of protection.
Claims (4)
1.C wave bands or so polarization high-gain low-noise list local oscillator IC frequency demultipliers, including shell, which is characterized in that the frequency demultiplier
Including：
Horizontal polarized wave receiver, vertically polarized wave receiver, local oscillator, intermediate frequency amplifier, RCV convolution controllers, institute
State horizontal polarized wave receiver, vertically polarized wave receiver is connect with local oscillator respectively, local oscillator and RCV convolution controls
Device connection processed.
The high-gain low-noise list local oscillator IC frequency demultipliers 2. C-band as described in claim 1 or so polarizes, which is characterized in that institute
State shell equipped with waveguide and with the tuner that even waveguide cylinder connect, tuner is provided in tuner equipped with casing
Integrated circuit board is connected with the export head exported for signal on casing；The integrated circuit board is equipped with RDA3570 and controls core
Piece, the horizontal polarized wave receiver, the level of vertically polarized wave receiver reception, vertical polarization signal are through the RDA3570
It is exported by the intermediate frequency amplifier after control chip processing, is exported in intermediate frequency amplifier wherein the RDA3570 controls chip
Compare its frequency and phase differential between reference-input signal before signal and is 5150MHZ local oscillators by frequency
Output signal is adjusted, then output signal is exported after intermediate frequency amplifier amplifies.
The high-gain low-noise list local oscillator IC frequency demultipliers 3. C-band as described in claim 1 or so polarizes, which is characterized in that institute
Stating frequency demultiplier further includes：
It is connect with horizontal polarized wave receiver, the horizontal polarization twt amplifier for being amplified to horizontal polarized wave；And
It is connect with vertically polarized wave receiver, the vertical polarization twt amplifier for being amplified to vertically polarized wave.
The high-gain low-noise list local oscillator IC frequency demultipliers 4. C-band as described in claim 1 or so polarizes, which is characterized in that institute
Stating frequency demultiplier further includes：
It is separately connected with horizontal polarized wave receiver, vertically polarized wave receiver, local oscillator, for being put to polarized wave
Big vertical-horizontal signal mixer amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721916218.7U CN207677874U (en) | 2017-12-31 | 2017-12-31 | C-band or so polarization high-gain low-noise list local oscillator IC frequency demultipliers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721916218.7U CN207677874U (en) | 2017-12-31 | 2017-12-31 | C-band or so polarization high-gain low-noise list local oscillator IC frequency demultipliers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207677874U true CN207677874U (en) | 2018-07-31 |
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ID=62972141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721916218.7U Active CN207677874U (en) | 2017-12-31 | 2017-12-31 | C-band or so polarization high-gain low-noise list local oscillator IC frequency demultipliers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207677874U (en) |
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2017
- 2017-12-31 CN CN201721916218.7U patent/CN207677874U/en active Active
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