CN203504541U - Frequency stabilization transmitter circuit for router - Google Patents
Frequency stabilization transmitter circuit for router Download PDFInfo
- Publication number
- CN203504541U CN203504541U CN201320654467.9U CN201320654467U CN203504541U CN 203504541 U CN203504541 U CN 203504541U CN 201320654467 U CN201320654467 U CN 201320654467U CN 203504541 U CN203504541 U CN 203504541U
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- resistance
- electric capacity
- resistor
- capacitor
- triode
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Abstract
Disclosed in the utility model is a frequency stabilization transmitter circuit for a router. The frequency stabilization transmitter circuit is composed of a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first resistor, a second resistor, a third resistor second, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a signal receiver, a first triode, a second triode, a first inductance coil, a second inductance coil, a variable capacitance diode, and an antenna. A power supply voltage input terminal is respectively connected with a first terminal of the first capacitor, a firs terminal of the first resistor, a first terminal of the second resistor, a first terminal of the third resistor, and a first terminal of the first inductance coil; and a second terminal of the first capacitor is grounded. According to the frequency stabilization transmitter circuit, the crystal stabilization is used and thus a frequency drift phenomenon can be well prevented; and because the first inductance coil is a high-frequency choking coil, the interference caused by subsequent high-frequency signal entrance into an amplifying zone can be prevented and the stable and continuous static bias voltage can be provided for the variable capacitance diode.
Description
Technical field
The utility model relates to a kind of transmitter circuitry, relates in particular to a kind of frequency stabilization transmitter circuitry for router.
Background technology
Router is the equipment that connects each local area network (LAN), wide area network in internet, and it can automatically be selected and set route according to the situation of channel, with optimal path, by the equipment of front and back order transmitted signal, comprises transmitter circuitry in router.Adopt the router of traditional transmitter circuit to be prone to frequency drift phenomenon, be also prone to high-frequency signal and scurry into amplification region and cause interference, and can not provide quiescent biasing voltage to variable capacitance diode.
Utility model content
The purpose of this utility model provides a kind of frequency stabilization transmitter circuitry for router with regard to being in order to address the above problem.
In order to achieve the above object, the utility model has adopted following technical scheme:
A kind of frequency stabilization transmitter circuitry for router, comprise the first electric capacity to the six electric capacity, the first resistance to the eight resistance, signal receiver, the first triode, the second triode, the first inductance coil, the second inductance coil, variable capacitance diode and antenna, supply voltage input respectively with the first end of described the first electric capacity, the first end of described the first resistance, the first end of described the second resistance, the first end of described the 3rd resistance is connected with the first end of described the first inductance coil, the second end ground connection of described the first electric capacity, the second end of described the first resistance is connected with the first end of described the second electric capacity and the first end of described signal receiver respectively, the second end of described signal receiver respectively with the emitter of described the first triode, the first end of described the 4th resistance, the positive pole of described variable capacitance diode, the first end of described the 6th resistance, ground connection after the first end of the first end of described the 4th electric capacity and described the 8th resistance is connected, the second end of described the second electric capacity is connected with the base stage of described the first triode with the second end of described the second resistance respectively, the collector electrode of described the first triode is connected with the first end of described the 5th resistance with the second end of described the 3rd resistance respectively, the second end of described the 5th resistance respectively with the second end of described the 4th resistance, the negative pole of described variable capacitance diode is connected with the first end of described the 3rd electric capacity, the second end of described the 3rd electric capacity respectively with the first end of described the 7th resistance and the second end of described the 6th resistance, the first end of described the 5th electric capacity is connected with the base stage of described the second triode, the second end of described the 5th electric capacity respectively with the second end of described the 4th electric capacity, the second end of described the 8th resistance is connected with the emitter of described the second triode, the collector electrode of described the second triode respectively with the first end of described the second inductance coil, described the 6th first end of electric capacity and the signal sending end of described antenna are connected, the second end of described the 6th electric capacity respectively with the second end of described the second inductance coil, the second end of described the 7th resistance is connected with the second end of described the first inductance coil.
The beneficial effects of the utility model are:
The utility model is a kind of frequency stabilization transmitter circuitry for router, this transmitter adopts crystal frequency stabilization, can solve well frequency drift phenomenon, the first inductance coil is high frequency choke coil. can prevent that high-frequency signal below from scurrying into amplification region and causing interference, can also provide continual and steady quiescent biasing voltage for variable capacitance diode.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of frequency stabilization transmitter circuitry for router of the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of frequency stabilization transmitter circuitry for router of the utility model, comprise that the first capacitor C 1 is to the 6th capacitor C 6, the first resistance R 1 is to the 8th resistance R 8, signal receiver HTD, the first triode VT1, the second triode VT2, the first inductance coil L1, the second inductance coil L2, variable capacitance diode D and antenna Y, supply voltage input respectively with the first end of the first capacitor C 1, the first end of the first resistance R 1, the first end of the second resistance R 2, the first end of the 3rd resistance R 3 is connected with the first end of the first inductance coil L1, the second end ground connection of the first capacitor C 1, the second end of the first resistance R 1 is connected with the first end of signal receiver HTD with the first end of the second capacitor C 2 respectively, the second end of signal receiver HTD respectively with the emitter of the first triode VT1, the first end of the 4th resistance R 4, the positive pole of variable capacitance diode D, the first end of the 6th resistance R 6, ground connection after the first end of the first end of the 4th capacitor C 4 and the 8th resistance R 8 is connected, the second end of the second capacitor C 2 is connected with the base stage of the first triode VT1 with the second end of the second resistance R 2 respectively, the collector electrode of the first triode VT1 is connected with the first end of the 5th resistance R 5 with the second end of the 3rd resistance R 3 respectively, the second end of the 5th resistance R 5 respectively with the second end of the 4th resistance R 4, the negative pole of variable capacitance diode D is connected with the first end of the 3rd capacitor C 3, the second end of the 3rd capacitor C 3 respectively with the first end of the 7th resistance R 7 and the second end of the 6th resistance R 6, the first end of the 5th capacitor C 5 is connected with the base stage of the second triode VT2, the second end of the 5th capacitor C 5 respectively with the second end of the 4th capacitor C 4, the second end of the 8th resistance R 8 is connected with the emitter of the second triode VT2, the collector electrode of the second triode VT2 respectively with the first end of the second inductance coil L2, the first end of the 6th capacitor C 6 is connected with the signal sending end of antenna Y, the second end of the 6th capacitor C 6 respectively with the second end of the second inductance coil L2, the second end of the 7th resistance R 7 is connected with the second end of the first inductance coil L1.
Operation principle of the present utility model is as follows:
By signal receiver HTD, received after signal, the collector electrode negative feedback amplifier forming through the first triode VT1, the second resistance R 2 and the 3rd resistance R 3 amplifies, the second triode VT2 and peripheral cell form parallel connection type crystal oscillator, the second inductance coil L2 and the 6th capacitor C 6 resonance are on the frequency tripling of crystal, make the frequency deviation of signal little, obtain stable frequency offset signal and launch by antenna Y.
Claims (1)
1. the frequency stabilization transmitter circuitry for router, it is characterized in that: comprise the first electric capacity to the six electric capacity, the first resistance to the eight resistance, signal receiver, the first triode, the second triode, the first inductance coil, the second inductance coil, variable capacitance diode and antenna, supply voltage input respectively with the first end of described the first electric capacity, the first end of described the first resistance, the first end of described the second resistance, the first end of described the 3rd resistance is connected with the first end of described the first inductance coil, the second end ground connection of described the first electric capacity, the second end of described the first resistance is connected with the first end of described the second electric capacity and the first end of described signal receiver respectively, the second end of described signal receiver respectively with the emitter of described the first triode, the first end of described the 4th resistance, the positive pole of described variable capacitance diode, the first end of described the 6th resistance, ground connection after the first end of the first end of described the 4th electric capacity and described the 8th resistance is connected, the second end of described the second electric capacity is connected with the base stage of described the first triode with the second end of described the second resistance respectively, the collector electrode of described the first triode is connected with the first end of described the 5th resistance with the second end of described the 3rd resistance respectively, the second end of described the 5th resistance respectively with the second end of described the 4th resistance, the negative pole of described variable capacitance diode is connected with the first end of described the 3rd electric capacity, the second end of described the 3rd electric capacity respectively with the first end of described the 7th resistance and the second end of described the 6th resistance, the first end of described the 5th electric capacity is connected with the base stage of described the second triode, the second end of described the 5th electric capacity respectively with the second end of described the 4th electric capacity, the second end of described the 8th resistance is connected with the emitter of described the second triode, the collector electrode of described the second triode respectively with the first end of described the second inductance coil, described the 6th first end of electric capacity and the signal sending end of described antenna are connected, the second end of described the 6th electric capacity respectively with the second end of described the second inductance coil, the second end of described the 7th resistance is connected with the second end of described the first inductance coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654467.9U CN203504541U (en) | 2013-10-23 | 2013-10-23 | Frequency stabilization transmitter circuit for router |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320654467.9U CN203504541U (en) | 2013-10-23 | 2013-10-23 | Frequency stabilization transmitter circuit for router |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203504541U true CN203504541U (en) | 2014-03-26 |
Family
ID=50335480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320654467.9U Expired - Fee Related CN203504541U (en) | 2013-10-23 | 2013-10-23 | Frequency stabilization transmitter circuit for router |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203504541U (en) |
-
2013
- 2013-10-23 CN CN201320654467.9U patent/CN203504541U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20141023 |
|
| EXPY | Termination of patent right or utility model |