CN109257053B - Network signal enhancing device - Google Patents
Network signal enhancing device Download PDFInfo
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- CN109257053B CN109257053B CN201811377978.4A CN201811377978A CN109257053B CN 109257053 B CN109257053 B CN 109257053B CN 201811377978 A CN201811377978 A CN 201811377978A CN 109257053 B CN109257053 B CN 109257053B
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- operational amplifier
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A network signal enhancement device. The network signal enhancement device is ingenious in conception, low in cost and capable of ensuring stability of signals. The device comprises a filter circuit, a limiting amplifying circuit and a signal enhancing circuit which are connected in sequence, wherein the filter circuit is used for filtering network signals; the limiting amplifying circuit is used for limiting and outputting the filtered network signals; the signal enhancement circuit is used for improving the transmitting power of the network signal after the amplitude limiting output. In operation, the input network signal has a certain clutter signal, the clutter signal is filtered by LC and then is sent to the input end of the limiting amplifying circuit, the operational amplifier U1 in the limiting amplifying circuit receives the output signal of the filtering circuit, the operational amplifier U2 is connected to the feedback channel of the operational amplifier U1 in parallel to output the signal in a limiting way, and the signal is sent to the signal enhancing circuit after being stabilized in voltage, so that the network signal transmitting power is improved, and the device has great development value and practical value.
Description
Technical Field
The present invention relates to the field of network signals, and in particular, to a network signal enhancement device.
Background
With the continuous development of communication networks in China, great convenience is brought to our life, the wireless communication networks realize information exchange by means of electromagnetic wave signals, various information can be widely spread in free space, so that the wireless communication networks are favored by people, the pressure of more and more intelligent communication devices on the wireless networks is also continuously increased, the wireless network signal optimization is particularly important, the enhancement of the wireless network signals is the key of the optimization, the enhancement of the network signals often causes great fluctuation of signal amplitude, and the signal distortion and instability are caused.
Disclosure of Invention
Aiming at the problems, the invention provides the network signal enhancement device which has ingenious conception and low cost and ensures the stability of signals.
The technical scheme of the invention is as follows: the device comprises a filter circuit, a limiting amplifying circuit and a signal enhancing circuit which are connected in sequence, wherein the filter circuit is used for filtering network signals; the limiting amplifying circuit is used for limiting and outputting the filtered network signals; the signal enhancement circuit is used for improving the transmitting power of the network signal after the amplitude limiting output.
The filter circuit comprises an inductor L1, a capacitor C1 and a resistor R1, wherein an input signal INT is connected with one end of the inductor L1, the other end of the inductor L1 is connected with the capacitor C1 and then grounded, one end of the resistor R1 is connected between the inductor L1 and the capacitor C1, and the other end of the resistor R1 is connected with the input end of the limiting amplifying circuit.
The limiting amplifying circuit comprises an operational amplifier U1, an operational amplifier U2, a resistor R3, a capacitor C2, a diode VD1, a voltage stabilizing diode D1 and a voltage stabilizing diode D2,
the reverse input end of the operational amplifier U1 receives the output signal of the filter circuit, one part of the output feedback signal of the operational amplifier U1 is fed back to the reverse input end of the operational amplifier U1 through a resistor R2, the other part of the output feedback signal flows into the same-direction input end of the operational amplifier U2, and the output feedback signal of the operational amplifier U2 flows into the reverse input end of the operational amplifier U1 through a diode VD1 after being compared;
wherein the same-direction input end of the operational amplifier U1 is grounded, the reverse input end of the operational amplifier U2 is connected with one end of a resistor R3, one end of a capacitor C2 and the cathode of a voltage stabilizing diode D1, the other end of the resistor R3 is connected with a +12V power supply, the other end of the capacitor C2 is connected with the output end of the operational amplifier U2 and the anode of the diode VD1, the anode of the voltage stabilizing diode D1 is grounded,
the output signal of the operational amplifier U1 is stabilized by the voltage stabilizing diode D2 and flows into the input end of the signal enhancement circuit.
The signal enhancement circuit comprises a resistor R4, a triode VT1, a triode VT2, a capacitor C3 and a resistor R5,
the base electrode of the triode VT1 is connected with the base electrode of the triode VT2, one end of the resistor R4 is connected with the output signal of the limiting amplifying circuit, the other end is connected between the base electrodes of the triode VT1 and the triode VT2,
the collector of the triode VT1 is connected with a +12V power supply through a resistor R5, the emitter of the triode VT1 is connected with the emitter of the triode VT2, and the collector of the triode VT2 is grounded;
the transmitting antenna ANT is connected between the emitters of both transistors VT1, VT2 through a capacitor C3.
Compared with the prior art, the invention has the following beneficial effects:
1. the input network signal has a certain clutter signal, the clutter signal is filtered by adopting LC and then is sent to the input end of the limiting amplifying circuit, the operational amplifier U1 in the limiting amplifying circuit receives the output signal of the filtering circuit, the operational amplifier U2 is connected to the feedback channel of the operational amplifier U1 in parallel to output the signal in a limiting way, and the signal is sent to the signal enhancing circuit after being stabilized to improve the network signal transmitting power, so that the device has great development value and practical value.
2. The reverse input end of the operational amplifier U1 receives the output signal of the filter circuit, one part of the output feedback signal of the operational amplifier U1 is fed back to the reverse input end of the operational amplifier U1 through the resistor R2, the other part of the output feedback signal flows into the same-direction input end of the operational amplifier U2, the comparison of the operational amplifier U2 flows into the reverse input end of the operational amplifier U1 through the diode VD1, so that the signal amplitude of the wireless network signal is maintained within a certain range while the signal is enhanced, and the stability of the signal is ensured.
Drawings
Figure 1 is a circuit block diagram of the present invention,
fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
The invention is as shown in fig. 1-2, and comprises a filter circuit, a limiting amplifying circuit and a signal enhancing circuit which are connected in sequence, wherein the filter circuit is used for filtering network signals; the limiting amplifying circuit is used for limiting and outputting the filtered network signals; the signal enhancement circuit is used for improving the transmitting power of the network signal after the amplitude limiting output.
The filter circuit comprises an inductor L1, a capacitor C1 and a resistor R1, wherein an input signal INT is connected with one end of the inductor L1, the other end of the inductor L1 is connected with the capacitor C1 and then grounded, one end of the resistor R1 is connected between the inductor L1 and the capacitor C1, and the other end of the resistor R1 is connected with the input end of the limiting amplifying circuit.
The inductance L1 and the capacitance C1 form an LC filter to process an input network signal, and the network signal is divided by the resistor R1 and then is sent to the input end of the limiting amplifying circuit.
The limiting amplifying circuit comprises an operational amplifier U1, an operational amplifier U2, a resistor R3, a capacitor C2, a diode VD1, a voltage stabilizing diode D1 and a voltage stabilizing diode D2,
the reverse input end of the operational amplifier U1 receives the output signal of the filter circuit, one part of the output feedback signal of the operational amplifier U1 is fed back to the reverse input end of the operational amplifier U1 through a resistor R2, the other part of the output feedback signal flows into the same-direction input end of the operational amplifier U2, and the output feedback signal of the operational amplifier U2 flows into the reverse input end of the operational amplifier U1 through a diode VD1 after being compared;
wherein the same-direction input end of the operational amplifier U1 is grounded, the reverse input end of the operational amplifier U2 is connected with one end of a resistor R3, one end of a capacitor C2 and the cathode of a voltage stabilizing diode D1, the other end of the resistor R3 is connected with a +12V power supply, the other end of the capacitor C2 is connected with the output end of the operational amplifier U2 and the anode of the diode VD1, the anode of the voltage stabilizing diode D1 is grounded,
the output signal of the operational amplifier U1 is stabilized by the voltage stabilizing diode D2 and flows into the input end of the signal enhancement circuit.
The signal enhancement circuit comprises a resistor R4, a triode VT1, a triode VT2, a capacitor C3 and a resistor R5,
the base electrode of the triode VT1 is connected with the base electrode of the triode VT2, one end of the resistor R4 is connected with the output signal of the limiting amplifying circuit, the other end is connected between the base electrodes of the triode VT1 and the triode VT2,
the collector of the triode VT1 is connected with a +12V power supply through a resistor R5, the emitter of the triode VT1 is connected with the emitter of the triode VT2, and the collector of the triode VT2 is grounded;
the transmitting antenna ANT is connected between the emitters of both transistors VT1, VT2 through a capacitor C3.
In operation, the resistor R4 divides the output signal received by the limiting amplifying circuit and then flows into the base electrode of the triode VT1 and the base electrode of the triode VT2 respectively, the common collector amplifying circuit formed by the triodes VT1 and VT2 amplifies the signal power and then outputs the signal at the emitters of the triodes VT1 and VT2, the network signal is emitted by the transmitting antenna ANT after being coupled by the capacitor C3, the +12V power supply is connected with the collector electrode of the triode VT1 through the resistor R5, and the collector electrode of the triode VT2 is grounded.
The invention is applied specifically, including filter circuit, limiting amplifier circuit and signal enhancement circuit, the said filter circuit carries on LC filtering to the network signal input by the input port and sends into the said limiting amplifier circuit input end, the operational amplifier U1 in the said limiting amplifier circuit receives the filter circuit output signal, the operational amplifier U2 connects in parallel to the feedback channel of the operational amplifier U1 and outputs the signal limiting, send into the said signal enhancement circuit after stabilizing the voltage to raise the network signal transmitting power;
the filtering circuit comprises an inductor L1, wherein certain clutter signals exist in an input network signal, the input network signal is filtered by adopting an LC filter formed by the inductor L1 and a capacitor C1, and the filtered network signal is divided by a resistor R1 and is sent to the input end of the limiting amplifying circuit.
The limiting amplifying circuit comprises an operational amplifier U1, wherein an inverted input end of the operational amplifier U1 receives an output signal of the filtering circuit, in order to avoid larger signal amplitude fluctuation caused by the operational amplifier U1 during signal amplification, one part of an output feedback signal of the operational amplifier U1 is fed back to the inverted input end of the operational amplifier U1 through a resistor R2, the other part of the output feedback signal flows into the same-direction input end of the operational amplifier U2 for comparison, a +12V power supply is divided by a resistor R3 and stabilized by a diode D1 to be used as comparison voltage at the inverted input end of the operational amplifier U2, when the voltage value of the output signal of the operational amplifier U1 is smaller than the voltage value of the inverted input end of the operational amplifier U2, the operational amplifier outputs negative voltage, the diode VD1 is cut off, and the operational amplifier U2 plays an infinite role at the moment; when the voltage value of the output signal of the operational amplifier U1 is larger than the voltage value of the reverse input end of the operational amplifier U2, the operational amplifier outputs a positive voltage, the diode VD1 is conducted, enough current is provided to enable the voltage value of the output signal of the operational amplifier U1 to be equal to the voltage value of the reverse input end of the operational amplifier U2, at the moment, the operational amplifier U2 is in a limiting state, the capacitor C2 plays a role in frequency compensation in the limiting state, and stability of amplified signals is ensured, wherein the operational amplifier U2 flows into the reverse input end of the operational amplifier U1 through the diode VD1 after being compared, the same-directional input end of the operational amplifier U1 is grounded, the reverse input end of the operational amplifier U2 is connected with one end of the resistor R3, one end of the capacitor C2 is connected with the cathode of the voltage stabilizing diode D1, the other end of the resistor R3 is connected with the +12V power supply, the anode of the voltage stabilizing diode D1 is grounded, and the output signal of the operational amplifier U1 flows into the input end of the circuit after being stabilized by the voltage stabilizing diode D2.
The signal enhancement circuit comprises a resistor R4, in order to further enhance wireless network signals, the wireless network signals have enough transmitting power, the output signals of the limiting amplification circuit are received by the resistor R4 and flow into the bases of the triodes VT1 and VT2 after being divided, the signal power is amplified by a common collector amplification circuit formed by the triodes VT1 and VT2 and then is output at the emitters of the triodes VT1 and VT2, the signals are enhanced in multiple, the network signals are transmitted by a transmitting antenna ANT after being coupled by a capacitor C3, a +12V power supply is connected with the collector of the triode VT1 through a resistor R5, and the collector of the triode VT2 is grounded.
When the invention is specifically used, a filter circuit carries out LC filtering on a network signal input by an input port and then sends the network signal to an operational amplifier U1 in a limiting amplifying circuit for amplifying, in order to avoid larger signal amplitude fluctuation caused by the operational amplifier U1 during signal amplification, one part of an output feedback signal of the operational amplifier U1 is fed back to the reverse input end of the operational amplifier U1 through a resistor R2, the other part of the output feedback signal flows into the same-direction input end of the operational amplifier U2 for comparison, a +12V power supply is divided by a resistor R3 and stabilized by a diode D1 to be used as comparison voltage at the reverse input end of the operational amplifier U2, when the voltage value of the output signal of the operational amplifier U1 is smaller than the voltage value of the reverse input end of the operational amplifier U2, the operational amplifier outputs negative voltage, the diode VD1 is cut off, and the operational amplifier U2 plays an infinite role at the moment; when the voltage value of the output signal of the operational amplifier U1 is larger than the voltage value of the reverse input end of the operational amplifier U2, the operational amplifier outputs positive voltage, the diode VD1 is conducted, enough current is provided to enable the voltage value of the output signal of the operational amplifier U1 to be equal to the voltage value of the reverse input end of the operational amplifier U2, at the moment, the operational amplifier U2 is in a limiting state, the capacitor C2 plays a role in frequency compensation in the limiting state, stability of amplified signals is ensured, the amplified signals are stabilized through the voltage stabilizing diode D2 and then are sent to the input end of the signal enhancement circuit, in order to further enhance wireless network signals, the common collector amplifying circuit formed by the triodes VT1 and VT2 amplifies and outputs the signal power, and the network signals are emitted through the transmitting antenna ANT after being coupled through the capacitor C3.
Claims (2)
1. The network signal enhancement device comprises a filter circuit, a limiting amplifying circuit and a signal enhancement circuit which are connected in sequence, wherein the filter circuit is used for filtering network signals; the limiting amplifying circuit is used for limiting and outputting the filtered network signals; the signal enhancement circuit is used for improving the transmitting power of the network signal after amplitude limiting output;
the filter circuit comprises an inductor L1, a capacitor C1 and a resistor R1, wherein an input signal INT is connected with one end of the inductor L1, the other end of the inductor L1 is connected with the capacitor C1 and then grounded, one end of the resistor R1 is connected between the inductor L1 and the capacitor C1, and the other end of the resistor R1 is connected with the input end of the limiting amplifying circuit;
it is characterized in that the limiting amplifying circuit comprises an operational amplifier U1, an operational amplifier U2, a resistor R3, a capacitor C2, a diode VD1, a voltage stabilizing diode D1 and a voltage stabilizing diode D2,
the reverse input end of the operational amplifier U1 receives the output signal of the filter circuit, one part of the output feedback signal of the operational amplifier U1 is fed back to the reverse input end of the operational amplifier U1 through a resistor R2, the other part of the output feedback signal flows into the same-direction input end of the operational amplifier U2, and the output feedback signal of the operational amplifier U2 flows into the reverse input end of the operational amplifier U1 through a diode VD1 after being compared;
wherein the same-direction input end of the operational amplifier U1 is grounded, the reverse input end of the operational amplifier U2 is connected with one end of a resistor R3, one end of a capacitor C2 and the cathode of a voltage stabilizing diode D1, the other end of the resistor R3 is connected with a +12V power supply, the other end of the capacitor C2 is connected with the output end of the operational amplifier U2 and the anode of the diode VD1, the anode of the voltage stabilizing diode D1 is grounded,
the output signal of the operational amplifier U1 is stabilized by the voltage stabilizing diode D2 and flows into the input end of the signal enhancement circuit.
2. A network signal enhancement device according to claim 1, wherein the signal enhancement circuit comprises a resistor R4, a transistor VT1, a transistor VT2, a capacitor C3 and a resistor R5,
the base electrode of the triode VT1 is connected with the base electrode of the triode VT2, one end of the resistor R4 is connected with the output end of the limiting amplifying circuit, the other end is connected between the base electrodes of the triode VT1 and the triode VT2,
the collector of the triode VT1 is connected with a +12V power supply through a resistor R5, the emitter of the triode VT1 is connected with the emitter of the triode VT2, and the collector of the triode VT2 is grounded;
the transmitting antenna ANT is connected between the emitters of both transistors VT1, VT2 through a capacitor C3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811377978.4A CN109257053B (en) | 2018-11-19 | 2018-11-19 | Network signal enhancing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811377978.4A CN109257053B (en) | 2018-11-19 | 2018-11-19 | Network signal enhancing device |
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| CN109257053A CN109257053A (en) | 2019-01-22 |
| CN109257053B true CN109257053B (en) | 2023-06-23 |
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| CN110474652A (en) * | 2019-09-18 | 2019-11-19 | 国网江苏省电力有限公司宝应县供电分公司 | A kind of communication signal enhancement device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776726A (en) * | 2010-01-28 | 2010-07-14 | 广东电网公司电力科学研究院 | Signal receiving conditioner of UHF partial discharge detecting system |
| CN108023549A (en) * | 2017-11-20 | 2018-05-11 | 天津大学 | Using the visible light communication receiver special chip of diversity receiving technology |
| CN108055084A (en) * | 2017-12-28 | 2018-05-18 | 国网河南省电力公司信息通信公司 | Optical network signal enhances radiating circuit |
| CN209017019U (en) * | 2018-11-19 | 2019-06-21 | 国网江苏省电力有限公司仪征市供电分公司 | Network signal enhancement device |
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2018
- 2018-11-19 CN CN201811377978.4A patent/CN109257053B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776726A (en) * | 2010-01-28 | 2010-07-14 | 广东电网公司电力科学研究院 | Signal receiving conditioner of UHF partial discharge detecting system |
| CN108023549A (en) * | 2017-11-20 | 2018-05-11 | 天津大学 | Using the visible light communication receiver special chip of diversity receiving technology |
| CN108055084A (en) * | 2017-12-28 | 2018-05-18 | 国网河南省电力公司信息通信公司 | Optical network signal enhances radiating circuit |
| CN209017019U (en) * | 2018-11-19 | 2019-06-21 | 国网江苏省电力有限公司仪征市供电分公司 | Network signal enhancement device |
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