CN205545637U - Single -output has satellite signal high frequency tuner of signal detection function - Google Patents
Single -output has satellite signal high frequency tuner of signal detection function Download PDFInfo
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- CN205545637U CN205545637U CN201620066972.5U CN201620066972U CN205545637U CN 205545637 U CN205545637 U CN 205545637U CN 201620066972 U CN201620066972 U CN 201620066972U CN 205545637 U CN205545637 U CN 205545637U
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- Monitoring And Testing Of Transmission In General (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
The utility model discloses a single -output has satellite signal high frequency tuner of signal detection function installs between signal reception antenna and satellite receiver, include the low -noise amplifier group that is connected with the signal output part of signal reception antenna, the output of low -noise amplifier group is connected with complete or collected works and becomes mixing and oscillating down coversion chip, and the output of down coversion chip is connected with satellite signal reception is quick -witted, and the down coversion chip is connected with local oscillator, being connected with power management and control chip between low -noise amplifier group and the down coversion chip, being provided with between the signal input part of power management and control chip and satellite receiver and detecting feedback circuit, power management and control chip are connected with the signal indication lamp, the utility model discloses a reasonable compactness of circuit design, manufacturing process is simple, and former material cost is low, and product stability is high, has low noise, high -gain performance characteristics simultaneously, adopts high -quality polarization piece, and the satellite program that can adapt to various strong and weak signals is received.
Description
Technical field
This utility model relates to satellite communication system technical field, particularly relates to a kind of satellite and has signal detection
The signal high-frequency tuner of function.
Background technology
Digital satellite television 3D, 4K signal reception supported by current most of high-frequency tuners, but do not has signal to examine
Brake.The most existing high-frequency tuner installation and debugging aspect will be by means of satellite-signal detector, or by electricity
Move infield to depending on machine, satellite signal receiver could be good by antenna installation and debugging simultaneously, causes installation fiber crops
Tired.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of simple in construction, the list output tool that volume is little
There is the satellite-signal high-frequency tuner of signal testing function.
For solving above-mentioned technical problem, the technical solution of the utility model is: a kind of single output has signal inspection
The satellite-signal high-frequency tuner of brake, is arranged between signal receiving antenna and DVB, including
The low-noise amplifier group being connected with the signal output part of described signal receiving antenna, described low-noise amplifier
The outfan of group connects the down coversion chip having fully integrated mixing and vibration, the outfan of described down coversion chip
Being connected with described satellite signal receiver, described down coversion chip connects local oscillator；
Connect between described low-noise amplifier group and described down coversion chip and have power management and control chip,
Detection feedback it is provided with between the signal input part of described power management and control chip and described DVB
Circuit, described power management and control chip connect signal lamp.
As the preferred technical scheme of one, described low-noise amplifier group includes two one-level low noises in parallel
Acoustic amplifier, the outfan of two described one-level low-noise amplifiers is connected to two grades of low-noise amplifiers.
As the preferred technical scheme of one, described down coversion chip is connected with described low-noise amplifier group
Band filter, described band filter connects high frequency amplifier, and the outfan of described high frequency amplifier is even
Being connected to frequency mixer, the outfan of described frequency mixer connects intermediate frequency amplifier, the output of described intermediate frequency amplifier
End is connected with described satellite signal receiver；Described frequency mixer connects phase-locked loop, described phase-locked loopback
Road is connected with described local oscillator.
As the preferred technical scheme of one, described local oscillator includes being connected with described phase-locked loop
Crystal.
As the preferred technical scheme of one, described power management and control chip include putting with described low noise
The low-noise amplifier FET biasing circuit one to one of big device group, also includes being connected with described frequency mixer
Mixer bias circuit, described biasing circuit connects has FET leakage current and Mixer bias current to adjust electricity
Road, 22KHz signal deteching circuit and polarizing voltage testing circuit, described FET leakage current and Mixer biasing
The low pressure difference linear voltage regulator that the outfan of matrix current adjustment circuit connects and-3V voltage generation circuit, described
22KHz signal deteching circuit connects a described signal lamp, the input of described polarizing voltage testing circuit with
Described detection feedback circuit connects, and the outfan of described polarizing voltage testing circuit produces electricity with described-3V voltage
Road connects.
Owing to have employed technique scheme, a kind of single output has the satellite-signal high frequency of signal testing function
Tuner, is arranged between signal receiving antenna and DVB, including with described signal receiving antenna
The low-noise amplifier group that signal output part connects, the outfan of described low-noise amplifier group connects complete or collected works
Become mixing and the down coversion chip of vibration, the outfan of described down coversion chip and described satellite signal receiver
Connecting, described down coversion chip connects local oscillator；Described low-noise amplifier group and described down coversion
Connecting between chip has power management and control chip, described power management and control chip to connect with described satellite
It is provided with detection feedback circuit, described power management and control chip connection between the signal input part of receipts machine to have
Signal lamp；Circuit design of the present utility model is the compactest, and manufacturing process is simple, and the cost of raw material is low,
Product stability is high, has low noise, high-gain performance characteristics simultaneously, uses the polarization sheet of high-quality, can fit
The satellite programming answering various strong and weak signals receives.
Accompanying drawing explanation
Fig. 1 is the theory diagram of this utility model embodiment；
Fig. 2 is the use state link graph of this utility model embodiment；
In figure: 11-signal receiving antenna；12-DVB；2-signal lamp.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is expanded on further.In the following detailed description,
Only by the way of explanation, describe some one exemplary embodiment of the present utility model.Undoubtedly, this area
Those of ordinary skill will be consequently realised that, in the case of without departing from spirit and scope of the present utility model, can
By with various different in the way of described embodiment is modified.Therefore, accompanying drawing and be described in essence
On be illustrative rather than for limiting scope of the claims.
As in figure 2 it is shown, a kind of single output has the satellite-signal high-frequency tuner of signal testing function, install
Between signal receiving antenna 11 and DVB 12, as it is shown in figure 1, include receiving with described signal
The low-noise amplifier group that the signal output part of antenna 11 connects, described low-noise amplifier group includes two also
The one-level low-noise amplifier of connection, the outfan of two described one-level low-noise amplifiers is connected to one two grades
Low-noise amplifier；The outfan of described low-noise amplifier group connects the lower change having fully integrated mixing and vibration
Frequently chip, the band filter that described down coversion chip is connected with described low-noise amplifier group, described band leads to
Wave filter connects high frequency amplifier, and the outfan of described high frequency amplifier connects frequency mixer, described mixing
The outfan of device connects intermediate frequency amplifier, the outfan of described intermediate frequency amplifier and described satellite signal receiving
Machine 12 connects；Described frequency mixer connects phase-locked loop, described phase-locked loop and described local oscillator
Connect.Described down coversion chip connects local oscillator；Described local oscillator includes and described phaselocked loop
Loop-coupled crystal.
Connect between described low-noise amplifier group and described down coversion chip and have power management and control chip,
Detection feedback it is provided with between the signal input part of described power management and control chip and described DVB
Circuit, described power management and control chip connect signal lamp 2；Described power management and control chip
Including the low-noise amplifier FET biasing circuit one to one with described low-noise amplifier group, also include
The mixer bias circuit being connected with described frequency mixer, described biasing circuit connect have FET leakage current and
Mixer bias current adjusts circuit, 22KHz signal deteching circuit and polarizing voltage testing circuit, described FET
Leakage current and Mixer bias current adjust low pressure difference linear voltage regulator and the-3V electricity of the outfan connection of circuit
Pressure produces circuit, and described 22KHz signal deteching circuit connects described signal lamp 2, described polarizing voltage
The input of testing circuit is connected with described detection feedback circuit, the outfan of described polarizing voltage testing circuit
It is connected with described-3V voltage generation circuit
Local oscillator is connected with frequency mixer through phase-locked loop；Power management and control chip regulation control institute
State low noise amplifier and phase-locked loop；High-frequency tuner has one user of connection to export intermediate-freuqncy signal
Outfan.
Low noise amplifier input input 11.70-12.20GHz high frequency in this utility model, described this locality shakes
Swing device through phase-locked loop output 10.75GHz local frequency to frequency mixer；Described intermediate frequency amplifier exports
950-1450MHz intermediate frequency.
Utility model works process is as follows:
11.70-12.20GHz high frequency enters low noise amplifier carries out power amplification so that high frequency satellites is believed
Number obtain enough power；High-frequency signal through band-pass filter, then through high frequency amplifier secondary amplify into
Entering frequency mixer mixing, local oscillator (crystal) inputs stable this locality through phase-locked loop to frequency mixer and shakes
Swing frequency 10.75GHz, power management and control chip and be used for regulating low noise amplifier amplifying power and phase-locked
Ring running voltage；Mixer output is connected with intermediate frequency amplifier；Intermediate frequency amplifier has one user of connection
To export the outfan of intermediate-freuqncy signal.
This utility model is for the deficiencies in the prior art, it is provided that a kind of simple in construction, volume little, have
Single output satellite signal high-frequency tuner of signal testing function.This utility model has an advantage that
1. this utility model designs based on phase-locked loop circuit, and manufacturing process is simple, and the cost of raw material is low, product
Stability is high.
2. this utility model has low noise, high-gain performance characteristics, uses the polarization sheet of high-quality, adapts to
The satellite programming of various strong and weak signals receives.
3. this utility model is for receiving the most all TV signal programs.
4. the novel uniqueness of this utility model outward appearance, is provided with signal lamp 2 and indicates, and has letter installing antenna
Number time signal lamp 2 Chang Liang, installation and debugging are convenient, do not limited by polarizing angle.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.
Skilled person will appreciate that of the industry, this utility model is not restricted to the described embodiments, above-described embodiment
With description described in principle of the present utility model is simply described, without departing from this utility model spirit and model
On the premise of enclosing, this utility model also has various changes and modifications, and these changes and improvements both fall within requirement
In the range of this utility model of protection.This utility model claim scope by appending claims and
Equivalent defines.
Claims (5)
1. single output has a satellite-signal high-frequency tuner for signal testing function, is arranged on signal and receives
Between antenna and DVB, it is characterised in that: include and the signal output part of described signal receiving antenna
The low-noise amplifier group connected, the outfan of described low-noise amplifier group connects to be had fully integrated mixing and shakes
The down coversion chip swung, the outfan of described down coversion chip is connected with described satellite signal receiver, described
Down coversion chip connects local oscillator；
Connect between described low-noise amplifier group and described down coversion chip and have power management and control chip,
Detection feedback it is provided with between the signal input part of described power management and control chip and described DVB
Circuit, described power management and control chip connect signal lamp.
2. single output as claimed in claim 1 has the satellite-signal high-frequency tuner of signal testing function,
It is characterized in that: described low-noise amplifier group includes two one-level low-noise amplifiers in parallel, two institutes
The outfan stating one-level low-noise amplifier is connected to two grades of low-noise amplifiers.
3. single output as claimed in claim 1 has the satellite-signal high-frequency tuner of signal testing function,
It is characterized in that: the band filter that described down coversion chip is connected with described low-noise amplifier group, described
Band filter connects high frequency amplifier, and the outfan of described high frequency amplifier connects frequency mixer, described
The outfan of frequency mixer connects intermediate frequency amplifier, the outfan of described intermediate frequency amplifier and described satellite-signal
Receiver connects；Described frequency mixer connects phase-locked loop, described phase-locked loop and described local oscillations
Device connects.
4. single output as claimed in claim 3 has the satellite-signal high-frequency tuner of signal testing function,
It is characterized in that: described local oscillator includes the crystal being connected with described phase-locked loop.
5. single output as claimed in claim 3 has the satellite-signal high-frequency tuner of signal testing function,
It is characterized in that: described power management and control chip include putting with the low noise of described low-noise amplifier group
Big device FET biasing circuit one to one, also includes the mixer bias circuit being connected with described frequency mixer,
Described biasing circuit connects has FET leakage current and Mixer bias current to adjust circuit, 22KHz signal detection
Circuit and polarizing voltage testing circuit, described FET leakage current and Mixer bias current adjust the defeated of circuit
Going out low pressure difference linear voltage regulator and-3V voltage generation circuit that end connects, described 22KHz signal deteching circuit is even
Being connected to described signal lamp, the input of described polarizing voltage testing circuit is with described detection feedback circuit even
Connecing, the outfan of described polarizing voltage testing circuit is connected with described-3V voltage generation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620066972.5U CN205545637U (en) | 2016-01-22 | 2016-01-22 | Single -output has satellite signal high frequency tuner of signal detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620066972.5U CN205545637U (en) | 2016-01-22 | 2016-01-22 | Single -output has satellite signal high frequency tuner of signal detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205545637U true CN205545637U (en) | 2016-08-31 |
Family
ID=56769130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620066972.5U Expired - Fee Related CN205545637U (en) | 2016-01-22 | 2016-01-22 | Single -output has satellite signal high frequency tuner of signal detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205545637U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253855A (en) * | 2016-09-26 | 2016-12-21 | 华讯方舟科技有限公司 | Down-conversion device |
-
2016
- 2016-01-22 CN CN201620066972.5U patent/CN205545637U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253855A (en) * | 2016-09-26 | 2016-12-21 | 华讯方舟科技有限公司 | Down-conversion device |
| WO2018054152A1 (en) * | 2016-09-26 | 2018-03-29 | 华讯方舟科技有限公司 | Down-conversion device |
| CN106253855B (en) * | 2016-09-26 | 2018-09-14 | 华讯方舟科技有限公司 | Down-conversion device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20200122 |