CN210629466U - Millimeter wave receiving anti-interference circuit - Google Patents
Millimeter wave receiving anti-interference circuit Download PDFInfo
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- CN210629466U CN210629466U CN201922405905.8U CN201922405905U CN210629466U CN 210629466 U CN210629466 U CN 210629466U CN 201922405905 U CN201922405905 U CN 201922405905U CN 210629466 U CN210629466 U CN 210629466U
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Abstract
The utility model discloses an anti jamming circuit is received to millimeter wave, include: the device comprises a receiving module, a control module, a filtering module, a conversion module, an anti-interference module and a signal amplification module, wherein a receiver BL in the receiving module acquires a millimeter wave signal, and a detector U1 detects the acquired signal; a triode Q2 and a triode Q3 in the control module are used as contactless switches to transmit detected signals to the filtering module; the filter circuit comprising an inductor L1, a capacitor C2 and a resistor R3 in the filter module filters frequencies except frequency points generating specific frequencies in the circuit; the triode Q3 in the conversion module transmits the filtered signal frequency to the anti-interference module; an inductor L3 in the anti-interference module stores a magnetic interference source generated in a circuit, and the magnetic interference source is filtered by a capacitor C5, and an operational amplifier U2 can adjust a millimeter wave output signal value; and a signal amplifier U3 in the signal amplification module amplifies the obtained millimeter wave signal, so that the propagation range is enlarged.
Description
Technical Field
The utility model relates to an anti jamming circuit, especially a millimeter wave receive anti jamming circuit.
Background
Interference rejection is a systematic technique used to combat any interference in communication or radar operation, preventing interference from acting on the equipment through the antenna input, the equipment housing, and along the power lines.
In the field of communications, interference sources cause damage to the reception of useful signals, and interference is generally classified into two categories, crosstalk: a coupling phenomenon between two signal lines in electronics; radio interference: the behaviors of destroying communication and preventing broadcasting signals are achieved by a mode of reducing the signal-to-noise ratio by sending radio signals.
The existing millimeter wave receiver has the following defects: 1. the unnecessary frequency band generated in the circuit can not be filtered when the millimeter wave signal is received; 2. the interference source generated in the signal transmission cannot be filtered or blocked.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the millimeter wave receiving anti-jamming circuit is provided to solve the problems in the prior art.
The technical scheme is as follows: a millimeter wave reception immunity circuit, comprising: the device comprises a receiving module, a control module, a filtering module, a conversion module, an anti-interference module and a signal amplification module, wherein a receiver BL in the receiving module acquires a millimeter wave signal, and a detector U1 detects the acquired signal; a triode Q2 and a triode Q3 in the control module are used as contactless switches to transmit detected signals to the filtering module; the filter circuit comprising an inductor L1, a capacitor C2 and a resistor R3 in the filter module filters frequencies except frequency points generating specific frequencies in the circuit; the triode Q3 in the conversion module transmits the filtered signal frequency to the anti-interference module; an inductor L3 in the anti-interference module stores a magnetic interference source generated in a circuit, and the magnetic interference source is filtered by a capacitor C5, and an operational amplifier U2 can adjust a millimeter wave output signal value; and a signal amplifier U3 in the signal amplification module amplifies the obtained millimeter wave signal.
In a further embodiment, the receiving module comprises a battery pack B1, a reset switch SB1, a receiver BL, a photocoupler U4, a detector U1, and a diode D2, wherein a pin 1 of the photocoupler U4 is connected with one end of the receiver BL; the pin 2 of the photoelectric coupler U4 is respectively connected with the negative terminal of the battery pack B1 and the negative terminal of the diode D2; the pin 3 of the photoelectric coupler U4 is respectively connected with the other end of the receiver BL, one end of the reset switch SB1 and the pin 2 of the detector U1; pin 4 of the photoelectric coupler U4 is connected with pin 3 of the detector U1; the pin 4 of the detector U1 is connected with the positive end of a diode D2; and the positive end of the battery pack B1 is connected with the other end of the reset switch SB 1.
In a further embodiment, the control module comprises a transistor Q2, a transistor Q3, a diode D3, a resistor R1, a resistor R2, and a transistor Q4, wherein a collector terminal of the transistor Q2 is connected with a pin 1 of a detector U1; the base terminal of the triode Q2 is connected with the emitter terminal of the triode Q3; the emitter terminal of the triode Q2 is respectively connected with the anode terminal of a diode D3, the emitter terminal of the triode Q4, a pin 2 of a photoelectric coupler U4, the cathode terminal of a battery pack B1 and the cathode terminal of a diode D2; the base terminal of the triode Q3 is connected with one end of a resistor R1; the collector terminal of the triode Q3 is respectively connected with the cathode terminal of a diode D3, one end of a resistor R2, a pin 3 of a photoelectric coupler U4, the other end of a receiver BL, one end of a reset switch SB1 and a pin 2 of a detector U1; and the collector of the triode Q4 is respectively connected with the other end of the resistor R1 and the other end of the resistor R2.
In a further embodiment, the filtering module includes an inductor L1, a capacitor C1, a capacitor C2, and a resistor R3, wherein one end of the inductor L1 is connected to a collector terminal of a transistor Q3, a cathode terminal of a diode D3, one end of a resistor R2, a pin 3 of a photocoupler U4, the other end of a receiver BL, one end of a reset switch SB1, and a pin 2 of a detector U1, respectively; the other end of the inductor L1 is respectively connected with the positive end of a capacitor C2 and one end of a resistor R3; one end of the capacitor C1 is connected with the base terminal of the triode Q4; the other end of the capacitor C1 is connected with the negative electrode end of the capacitor C2, the other end of the resistor R3, the emitter end of the triode Q2, the positive electrode end of the diode D3, the emitter end of the triode Q4, a pin 2 of the photoelectric coupler U4, the negative electrode end of the battery pack B1 and the negative electrode end of the diode D2 respectively.
In a further embodiment, the conversion module includes a resistor R4, a resistor R6, an inductor L2, a capacitor C3, a transistor Q5, a diode D4, a resistor R5, a sliding resistor RV1, and a capacitor C4, wherein a collector of the transistor Q5 is connected to one end of the resistor R4, one end of the inductor L2, and one end of the capacitor C4, respectively; the base end of the triode Q5 is connected with the positive end of a capacitor C3; the emitter terminal of the triode Q5 is connected with one end of a resistor R5; the other end of the resistor R4 is respectively connected with one end of a resistor R6, the other end of the inductor L1, the positive end of the capacitor C2 and one end of a resistor R3; the other end of the resistor R6 is connected with the positive end of a diode D4; the negative end of the diode D4 is connected with pin 1 of a sliding resistor RV 1; pin 2 and pin 3 of the sliding resistor RV1 are respectively connected with the other end of a capacitor C4, the other end of a resistor R5, the other end of a capacitor C1, the negative end of a capacitor C2, the other end of a resistor R3, the emitter end of a triode Q2, the positive end of a diode D3, the emitter end of a triode Q4, pin 2 of a photoelectric coupler U4, the negative end of a battery pack B1 and the negative end of a diode D2; the other end of the inductor L2 is connected with the negative end of the capacitor C3.
In a further embodiment, the anti-jamming module comprises a resistor R9, a resistor R8, a resistor R7, a lamp LED1, an inductor L3, a triode Q6, a capacitor C5, a capacitor C6, a resistor R10, an operational amplifier U2, a resistor R11 and an inductor L5, wherein a pin 2 of the operational amplifier U2 is connected with one end of the resistor R11; pin 4 of the operational amplifier U2 is connected with a ground wire GND; the pin 7 of the operational amplifier U2 is connected with a power supply + 5V; the pin 3 of the operational amplifier U2 is respectively connected with a base terminal of a triode Q3 and one end of a resistor R1; one end of the inductor L5 is connected with the other end of the resistor R11; the other end of the inductor L5 is respectively connected with one end of a resistor R10, the positive end of a capacitor C5, one end of an inductor L4 and the emitter end of a triode Q6; the other end of the resistor R10 is connected with one end of a capacitor C6; the other end of the capacitor C6 is respectively connected with the collector of the triode Q4, the other end of the resistor R1 and the other end of the resistor R2; the negative end of the capacitor C5 is respectively connected with the other end of the inductor L4, the emitter end of the triode Q5 and one end of the resistor R5; a collector terminal of the triode Q6 is connected with one end of an inductor L3; the other end of the inductor L3 is connected with one end of a resistor R8; the base end terminal of the triode Q6 is respectively connected with the positive end terminal of the lamp LED1, the other end of the resistor R8 and one end of the resistor R9; the lamp LED1 is connected with one end of a resistor R7; the other end of the resistor R7 is respectively connected with a pin 2 and a pin 3 of a sliding resistor RV1, the other end of a capacitor C4, the other end of a resistor R5, the other end of a capacitor C1, the negative end of a capacitor C2, the other end of a resistor R3, the emitter end of a triode Q2, the positive end of a diode D3, the emitter end of a triode Q4, a pin 2 of a photoelectric coupler U4, the negative end of a battery pack B1 and the negative end of a diode D2; the other end of the inductor L2 is connected with the negative end of the capacitor C3.
In a further embodiment, the signal amplification module includes a resistor R12, a capacitor C7, a capacitor C8, a resistor R13, a diode D5, a resistor R14, a capacitor C9, and a signal amplifier U3, wherein pin 3 of the signal amplifier U3 is connected to the negative terminal of the diode D5; the pin 2 of the signal amplifier U3 is respectively connected with one end of a capacitor C9 and one end of a resistor R14; pin 7 of the signal amplifier U3 is connected with a +5V power supply; pin 4 of the signal amplifier U3 is connected with a ground wire GND; the positive end of the diode D5 is respectively connected with one end of a resistor R12, one end of a capacitor C8 pin 1 and one end of a resistor R13; the other end of the resistor R12 is respectively connected with the positive end of the capacitor C7 and the pin 6 of the operational amplifier U2; the other end of the resistor R13 is connected with the other end of the 1 capacitor C9; the other end of the resistor R14 is respectively connected with the pin 2 of the capacitor C8 and the negative end of the capacitor C7.
In a further embodiment, the diode D2 and the diode D3 are both zener diodes; the model of the transistor Q2, the transistor Q3, the transistor Q4, the transistor Q5 and the transistor Q6 are all NPN; the capacitor C2, the capacitor C3, the capacitor C5, the capacitor C7 and the capacitor C8 are all electrolytic capacitors.
Has the advantages that: the utility model discloses an intensity of the light that photoelectric coupler U4 accepted passes through detector UI and transmits to control module in the receiving module, and different output ports of triode Q2 and triode Q3 are being controlled according to the size of numerical value, and inductance L1, electric capacity C2 and resistance R3 group filter circuit filter the frequency outside the frequency point that produces specific frequency in the circuit in the filter module, reach the stability and the quality of the effect improvement frequency of filtering; the inductor L3 stores the magnetic interference source generated in the circuit in the anti-interference module, and filters the magnetic interference source through the capacitor C5, the operational amplifier U2 amplifies the filtered effective signal, and the output signal can be controlled to be the addition or subtraction or differentiation of the input signal, so that the adjustment can be carried out according to the requirements.
Drawings
Fig. 1 is a block circuit diagram of the present invention.
Fig. 2 is a circuit diagram of the receiving control module of the present invention.
Fig. 3 is a circuit diagram of the filter conversion module of the present invention.
Fig. 4 is a circuit diagram of the anti-interference module of the present invention.
Fig. 5 is a circuit diagram of the signal amplification module of the present invention.
Detailed Description
Referring to fig. 1, a millimeter wave receiving anti-jamming circuit includes: and the receiving module comprises a battery pack B1, a reset switch SB1, a receiver BL, a photoelectric coupler U4, a detector U1 and a diode D2.
The control module comprises a transistor Q2, a transistor Q3, a diode D3, a resistor R1, a resistor R2 and a transistor Q4.
The filter module comprises an inductor L1, a capacitor C1, a capacitor C2 and a resistor R3.
The device comprises a conversion module, wherein the conversion module comprises a resistor R4, a resistor R6, an inductor L2, a capacitor C3, a triode Q5, a diode D4, a resistor R5, a sliding resistor RV1 and a capacitor C4.
The anti-interference module comprises a resistor R9, a resistor R8, a resistor R7, a lamp LED1, an inductor L3, a triode Q6, a capacitor C5, a capacitor C6, a resistor R10, an operational amplifier U2, a resistor R11 and an inductor L5.
The signal amplification module comprises a resistor R12, a capacitor C7, a capacitor C8, a resistor R13, a diode D5, a resistor R14, a capacitor C9 and a signal amplifier U3.
Referring to fig. 2 to 5, a pin 1 of the photocoupler U4 in the receiving module is connected to one end of the receiver BL; the pin 2 of the photoelectric coupler U4 is respectively connected with the negative terminal of the battery pack B1 and the negative terminal of the diode D2; the pin 3 of the photoelectric coupler U4 is respectively connected with the other end of the receiver BL, one end of the reset switch SB1 and the pin 2 of the detector U1; pin 4 of the photoelectric coupler U4 is connected with pin 3 of the detector U1; the pin 4 of the detector U1 is connected with the positive end of a diode D2; and the positive end of the battery pack B1 is connected with the other end of the reset switch SB 1.
A collector terminal of the triode Q2 in the control module is connected with a pin 1 of a detector U1; the base terminal of the triode Q2 is connected with the emitter terminal of the triode Q3; the emitter terminal of the triode Q2 is respectively connected with the anode terminal of a diode D3, the emitter terminal of the triode Q4, a pin 2 of a photoelectric coupler U4, the cathode terminal of a battery pack B1 and the cathode terminal of a diode D2; the base terminal of the triode Q3 is connected with one end of a resistor R1; the collector terminal of the triode Q3 is respectively connected with the cathode terminal of a diode D3, one end of a resistor R2, a pin 3 of a photoelectric coupler U4, the other end of a receiver BL, one end of a reset switch SB1 and a pin 2 of a detector U1; and the collector of the triode Q4 is respectively connected with the other end of the resistor R1 and the other end of the resistor R2.
One end of an inductor L1 in the filtering module is respectively connected with a collector terminal of a triode Q3, a cathode terminal of a diode D3, one end of a resistor R2, a pin 3 of a photoelectric coupler U4, the other end of a receiver BL, one end of a reset switch SB1 and a pin 2 of a detector U1; the other end of the inductor L1 is respectively connected with the positive end of a capacitor C2 and one end of a resistor R3; one end of the capacitor C1 is connected with the base terminal of the triode Q4; the other end of the capacitor C1 is connected with the negative electrode end of the capacitor C2, the other end of the resistor R3, the emitter end of the triode Q2, the positive electrode end of the diode D3, the emitter end of the triode Q4, a pin 2 of the photoelectric coupler U4, the negative electrode end of the battery pack B1 and the negative electrode end of the diode D2 respectively.
The collector of the triode Q5 in the conversion module is respectively connected with one end of a resistor R4, one end of an inductor L2 and one end of a capacitor C4; the base end of the triode Q5 is connected with the positive end of a capacitor C3; the emitter terminal of the triode Q5 is connected with one end of a resistor R5; the other end of the resistor R4 is respectively connected with one end of a resistor R6, the other end of the inductor L1, the positive end of the capacitor C2 and one end of a resistor R3; the other end of the resistor R6 is connected with the positive end of a diode D4; the negative end of the diode D4 is connected with pin 1 of a sliding resistor RV 1; pin 2 and pin 3 of the sliding resistor RV1 are respectively connected with the other end of a capacitor C4, the other end of a resistor R5, the other end of a capacitor C1, the negative end of a capacitor C2, the other end of a resistor R3, the emitter end of a triode Q2, the positive end of a diode D3, the emitter end of a triode Q4, pin 2 of a photoelectric coupler U4, the negative end of a battery pack B1 and the negative end of a diode D2; the other end of the inductor L2 is connected with the negative end of the capacitor C3.
The pin 2 of the operational amplifier U2 in the anti-interference module is connected with one end of a resistor R11; pin 4 of the operational amplifier U2 is connected with a ground wire GND; the pin 7 of the operational amplifier U2 is connected with a power supply + 5V; the pin 3 of the operational amplifier U2 is respectively connected with a base terminal of a triode Q3 and one end of a resistor R1; one end of the inductor L5 is connected with the other end of the resistor R11; the other end of the inductor L5 is respectively connected with one end of a resistor R10, the positive end of a capacitor C5, one end of an inductor L4 and the emitter end of a triode Q6; the other end of the resistor R10 is connected with one end of a capacitor C6; the other end of the capacitor C6 is respectively connected with the collector of the triode Q4, the other end of the resistor R1 and the other end of the resistor R2; the negative end of the capacitor C5 is respectively connected with the other end of the inductor L4, the emitter end of the triode Q5 and one end of the resistor R5; a collector terminal of the triode Q6 is connected with one end of an inductor L3; the other end of the inductor L3 is connected with one end of a resistor R8; the base end terminal of the triode Q6 is respectively connected with the positive end terminal of the lamp LED1, the other end of the resistor R8 and one end of the resistor R9; the lamp LED1 is connected with one end of a resistor R7; the other end of the resistor R7 is respectively connected with a pin 2 and a pin 3 of a sliding resistor RV1, the other end of a capacitor C4, the other end of a resistor R5, the other end of a capacitor C1, the negative end of a capacitor C2, the other end of a resistor R3, the emitter end of a triode Q2, the positive end of a diode D3, the emitter end of a triode Q4, a pin 2 of a photoelectric coupler U4, the negative end of a battery pack B1 and the negative end of a diode D2; the other end of the inductor L2 is connected with the negative end of the capacitor C3.
The pin 3 of the signal amplifier U3 in the signal amplification module is connected with the cathode end of a diode D5; the pin 2 of the signal amplifier U3 is respectively connected with one end of a capacitor C9 and one end of a resistor R14; pin 7 of the signal amplifier U3 is connected with a +5V power supply; pin 4 of the signal amplifier U3 is connected with a ground wire GND; the positive end of the diode D5 is respectively connected with one end of a resistor R12, one end of a capacitor C8 pin 1 and one end of a resistor R13; the other end of the resistor R12 is respectively connected with the positive end of the capacitor C7 and the pin 6 of the operational amplifier U2; the other end of the resistor R13 is connected with the other end of the 1 capacitor C9; the other end of the resistor R14 is respectively connected with the pin 2 of the capacitor C8 and the negative end of the capacitor C7.
The working principle is as follows: the reset switch SB1 turns on the receiving module to get electricity, the receiver BL transmits the obtained millimeter wave signal to the photoelectric coupler U4, the photoelectric coupler U4 judges the influence of the external environment on the millimeter wave signal through the intensity of the received light, the photoelectric coupler U4 is fed back to the control module through the detector U1, the control module controls different output ports according to the fed back numerical value through the triode Q2 and the triode Q3, the unqualified power supply signal filters out frequencies except for the frequency points generating specific frequencies in the circuit through the filter circuit of the group of the inductor L1, the capacitor C2 and the resistor R3, the triode Q3 forms the coupling circuit through the capacitor C3 and the inductor L2 with the filtered effective signal to maintain the stability of the signal conversion, and the sliding resistor RV1 adjusts the voltage value to transmit the converted signal to the anti-interference module; the inductor L3 stores a magnetic interference source generated in the circuit, and the magnetic interference source is filtered by the capacitor C5, so that the operational amplifier U2 adjusts the received millimeter wave output signal value; the capacitor C7 and the capacitor C8 store the millimeter wave signals fed back by the operational amplifier U2, and the signal amplifier U3 amplifies the obtained millimeter wave signals, so that the propagation range is enlarged.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be modified to perform various equivalent transformations, which all belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a millimeter wave receives anti jamming circuit which characterized by includes: the device comprises a receiving module, a control module, a filtering module, a conversion module, an anti-interference module and a signal amplification module, wherein a receiver BL in the receiving module acquires a millimeter wave signal, and a detector U1 detects the acquired signal; a triode Q2 and a triode Q3 in the control module are used as contactless switches to transmit detected signals to the filtering module; the filter circuit comprising an inductor L1, a capacitor C2 and a resistor R3 in the filter module filters frequencies except frequency points generating specific frequencies in the circuit; the triode Q3 in the conversion module transmits the filtered signal frequency to the anti-interference module; an inductor L3 in the anti-interference module stores a magnetic interference source generated in a circuit, and the magnetic interference source is filtered by a capacitor C5, and an operational amplifier U2 can adjust a millimeter wave output signal value; a signal amplifier U3 in the signal amplification module amplifies the obtained millimeter wave signal; the receiving module comprises a battery pack B1, a reset switch SB1, a receiver BL, a photoelectric coupler U4, a detector U1 and a diode D2, wherein a pin 1 of the photoelectric coupler U4 is connected with one end of the receiver BL; the pin 2 of the photoelectric coupler U4 is respectively connected with the negative terminal of the battery pack B1 and the negative terminal of the diode D2; the pin 3 of the photoelectric coupler U4 is respectively connected with the other end of the receiver BL, one end of the reset switch SB1 and the pin 2 of the detector U1; pin 4 of the photoelectric coupler U4 is connected with pin 3 of the detector U1; the pin 4 of the detector U1 is connected with the positive end of a diode D2; and the positive end of the battery pack B1 is connected with the other end of the reset switch SB 1.
2. A millimeter wave receiving anti-jamming circuit according to claim 1, characterized in that: the control module comprises a triode Q2, a triode Q3, a diode D3, a resistor R1, a resistor R2 and a triode Q4, wherein the collector terminal of the triode Q2 is connected with a pin 1 of a detector U1; the base terminal of the triode Q2 is connected with the emitter terminal of the triode Q3; the emitter terminal of the triode Q2 is respectively connected with the anode terminal of a diode D3, the emitter terminal of the triode Q4, a pin 2 of a photoelectric coupler U4, the cathode terminal of a battery pack B1 and the cathode terminal of a diode D2; the base terminal of the triode Q3 is connected with one end of a resistor R1; the collector terminal of the triode Q3 is respectively connected with the cathode terminal of a diode D3, one end of a resistor R2, a pin 3 of a photoelectric coupler U4, the other end of a receiver BL, one end of a reset switch SB1 and a pin 2 of a detector U1; and the collector of the triode Q4 is respectively connected with the other end of the resistor R1 and the other end of the resistor R2.
3. A millimeter wave receiving anti-jamming circuit according to claim 1, characterized in that: the filtering module comprises an inductor L1, a capacitor C1, a capacitor C2 and a resistor R3, wherein one end of the inductor L1 is respectively connected with a collector end of a triode Q3, a cathode end of a diode D3, one end of a resistor R2, a pin 3 of a photoelectric coupler U4, the other end of a receiver BL, one end of a reset switch SB1 and a pin 2 of a detector U1; the other end of the inductor L1 is respectively connected with the positive end of a capacitor C2 and one end of a resistor R3; one end of the capacitor C1 is connected with the base terminal of the triode Q4; the other end of the capacitor C1 is connected with the negative electrode end of the capacitor C2, the other end of the resistor R3, the emitter end of the triode Q2, the positive electrode end of the diode D3, the emitter end of the triode Q4, a pin 2 of the photoelectric coupler U4, the negative electrode end of the battery pack B1 and the negative electrode end of the diode D2 respectively.
4. A millimeter wave receiving anti-jamming circuit according to claim 1, characterized in that: the conversion module comprises a resistor R4, a resistor R6, an inductor L2, a capacitor C3, a triode Q5, a diode D4, a resistor R5, a sliding resistor RV1 and a capacitor C4, wherein a collector of the triode Q5 is connected with one end of the resistor R4, one end of the inductor L2 and one end of the capacitor C4 respectively; the base end of the triode Q5 is connected with the positive end of a capacitor C3; the emitter terminal of the triode Q5 is connected with one end of a resistor R5; the other end of the resistor R4 is respectively connected with one end of a resistor R6, the other end of the inductor L1, the positive end of the capacitor C2 and one end of a resistor R3; the other end of the resistor R6 is connected with the positive end of a diode D4; the negative end of the diode D4 is connected with pin 1 of a sliding resistor RV 1; pin 2 and pin 3 of the sliding resistor RV1 are respectively connected with the other end of a capacitor C4, the other end of a resistor R5, the other end of a capacitor C1, the negative end of a capacitor C2, the other end of a resistor R3, the emitter end of a triode Q2, the positive end of a diode D3, the emitter end of a triode Q4, pin 2 of a photoelectric coupler U4, the negative end of a battery pack B1 and the negative end of a diode D2; the other end of the inductor L2 is connected with the negative end of the capacitor C3.
5. A millimeter wave receiving anti-jamming circuit according to claim 1, characterized in that: the anti-interference module comprises a resistor R9, a resistor R8, a resistor R7, a lamp LED1, an inductor L3, a triode Q6, a capacitor C5, a capacitor C6, a resistor R10, an operational amplifier U2, a resistor R11 and an inductor L5, wherein a pin 2 of the operational amplifier U2 is connected with one end of the resistor R11; pin 4 of the operational amplifier U2 is connected with a ground wire GND; the pin 7 of the operational amplifier U2 is connected with a power supply + 5V; the pin 3 of the operational amplifier U2 is respectively connected with a base terminal of a triode Q3 and one end of a resistor R1; one end of the inductor L5 is connected with the other end of the resistor R11; the other end of the inductor L5 is respectively connected with one end of a resistor R10, the positive end of a capacitor C5, one end of an inductor L4 and the emitter end of a triode Q6; the other end of the resistor R10 is connected with one end of a capacitor C6; the other end of the capacitor C6 is respectively connected with the collector of the triode Q4, the other end of the resistor R1 and the other end of the resistor R2; the negative end of the capacitor C5 is respectively connected with the other end of the inductor L4, the emitter end of the triode Q5 and one end of the resistor R5; a collector terminal of the triode Q6 is connected with one end of an inductor L3; the other end of the inductor L3 is connected with one end of a resistor R8; the base end terminal of the triode Q6 is respectively connected with the positive end terminal of the lamp LED1, the other end of the resistor R8 and one end of the resistor R9; the lamp LED1 is connected with one end of a resistor R7; the other end of the resistor R7 is respectively connected with a pin 2 and a pin 3 of a sliding resistor RV1, the other end of a capacitor C4, the other end of a resistor R5, the other end of a capacitor C1, the negative end of a capacitor C2, the other end of a resistor R3, the emitter end of a triode Q2, the positive end of a diode D3, the emitter end of a triode Q4, a pin 2 of a photoelectric coupler U4, the negative end of a battery pack B1 and the negative end of a diode D2; the other end of the inductor L2 is connected with the negative end of the capacitor C3.
6. A millimeter wave receiving anti-jamming circuit according to claim 1, characterized in that: the signal amplification module comprises a resistor R12, a capacitor C7, a capacitor C8, a resistor R13, a diode D5, a resistor R14, a capacitor C9 and a signal amplifier U3, wherein a pin 3 of the signal amplifier U3 is connected with the negative terminal of a diode D5; the pin 2 of the signal amplifier U3 is respectively connected with one end of a capacitor C9 and one end of a resistor R14; pin 7 of the signal amplifier U3 is connected with a +5V power supply; pin 4 of the signal amplifier U3 is connected with a ground wire GND; the positive end of the diode D5 is respectively connected with one end of a resistor R12, one end of a capacitor C8 pin 1 and one end of a resistor R13; the other end of the resistor R12 is respectively connected with the positive end of the capacitor C7 and the pin 6 of the operational amplifier U2; the other end of the resistor R13 is connected with the other end of the 1 capacitor C9; the other end of the resistor R14 is respectively connected with the pin 2 of the capacitor C8 and the negative end of the capacitor C7.
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| CN201922405905.8U CN210629466U (en) | 2019-12-27 | 2019-12-27 | Millimeter wave receiving anti-interference circuit |
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| CN201922405905.8U CN210629466U (en) | 2019-12-27 | 2019-12-27 | Millimeter wave receiving anti-interference circuit |
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| CN210629466U true CN210629466U (en) | 2020-05-26 |
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| CN (1) | CN210629466U (en) |
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2019
- 2019-12-27 CN CN201922405905.8U patent/CN210629466U/en active Active
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