Summary of the invention
The objective of the invention is provides a kind of printing antenna system of vehicle rear window glass to above-mentioned weak point; Rear auto window is provided with frequency modulation (FM), two groups of printed antennas of amplitude modulation (AM); And be connected with antenna amplifier antennafire; Be provided with in the antenna amplifier antennafire and connect the positive band stop filter of power supply, be connected with demist, defrosting power supply; Frequency modulation (FM), two groups of printed antennas of amplitude modulation (AM), every group of antenna is provided with many antennas, can improve the reception signal effect; Amplify to antenna amplifier antennafire; Amplifying signal is input to cassette car radio, can receives frequency modulation (FM), amplitude modulation (AM) signal, make key (FM), amplitude modulation (AM) frequently in any direction; A good reception is all arranged in any case; In addition, frequency modulation (FM) printed antenna can also be made demist, defrosting heater wire usefulness, can remove water smoke, frost on the rear window after the energized.
Printing antenna system of vehicle rear window glass takes following scheme to realize: printing antenna system of vehicle rear window glass is characterized in that vehicle rear window glass is provided with frequency modulation (FM) printed antenna, amplitude modulation (AM) printed antenna; The frequency modulation printed antenna is provided with some antennas, and the amplitude modulation printed antenna is provided with some antennas; Frequency modulation (FM) printed antenna, amplitude modulation (AM) printed antenna are respectively equipped with the printed antenna output; Frequency modulation (FM) printed antenna links to each other with antenna amplifier antennafire through intercoil connection respectively with the printed antenna output of amplitude modulation (AM) printed antenna, is provided with in the antenna amplifier antennafire and connects the positive band stop filter of power supply.In frequency modulation (FM) printed antenna one side elastic contact chip is housed, connects the positive band stop filter of power supply and link to each other with elastic contact chip.At frequency modulation (FM) printed antenna opposite side the band stop filter of elastic contact chip, ground connection is housed, band stop filter one end of ground connection links to each other other end ground connection with elastic contact chip.The band stop filter of ground connection makes antenna form high impedance, and aerial signal can be with ground short circuit.
Antenna amplifier antennafire comprises amplifier housing, amplifier electron circuit board, antenna amplifier antennafire circuit, input socket and output socket; The input socket adopts ZF input socket, and output socket adopts AM/FM amplitude modulationfrequency modulation output socket.Amplifier is housed on the electronic circuit board is connected reed with antenna.
The antenna amplifier antennafire circuit comprises amplitude modulation (AM) printed antenna amplifying circuit, frequency modulation (FM) printed antenna amplifying circuit, frequency modulation (FM) automatic gain control circuit (AGC), power circuit and connects the positive band stop filter of power supply.
Amplitude modulation (AM) printed antenna amplifying circuit comprises capacitor C 1~C6, resistance R 1~R10, inductance L 1~L3, double diode D1 and technotron V1, V2.
Frequency modulation (FM) printed antenna amplifying circuit comprises capacitor C 7~C19, resistance R 11~R21, inductance L 4~L7, double diode D2, transformer T1 and triode V3.
Frequency modulation (FM) automatic gain control circuit (AGC) comprises capacitor C 20~C27, resistance R 22~R29, diode D3, double diode D5 and dual operational amplifier ic chip 1.
Power circuit comprises capacitor C 28, C29, voltage stabilizing didoe D6, resistance R 30, inductance L 10 and diode D7.
Connect the positive band stop filter of power supply and comprise capacitor C 30, C31, C32 and inductance L 11.
In the antenna amplifier antennafire circuit, amplitude modulation (AM) printed antenna links to each other with capacitor C 1 one ends, and capacitor C 1 other end links to each other with 1 pin of resistance R 1, R2, R3, inductance L 1, double diode D1; Resistance R 3 links to each other with capacitor C 2 one ends with inductance L 1 parallel connection back; Capacitor C 28,29, resistance R 30, diode D6 link to each other in the 2 pin ground connection of double diode D1,3 pin of double diode D1 and resistance R 2, R4 and power circuit, and resistance R 4 links to each other with the end of resistance R 5, R6; The other end of capacitor C 2 links to each other with resistance R 5, FET V1 grid; The source electrode of FET V1 links to each other with resistance R 7, capacitor C 3, and the source electrode of FET V2 links to each other with capacitor C 4, resistance R 9, and resistance R 8 links to each other with capacitor C 3, C4; The drain electrode of FET V1, V2 links to each other with inductance L 3, resistance R 10, capacitor C 5; Capacitor C 5 links to each other with antenna amplifier antennafire output port OUT (AM/FM amplitude modulationfrequency modulation output socket) with inductance L 5 series connection backs, and output amplitude modulation (AM) signal is input to cassette car radio again.
Frequency modulation (FM) printed antenna links to each other with capacitor C 7 one ends; Link to each other with 1 pin, resistance R 13, the capacitor C 8 of resistance R 12, double diode D2 again after 11 series connection of capacitor C 7 other ends and resistance R; 3 pin of double diode D2 link to each other with resistance R 13 other ends, capacitor C 9 back with power circuit in capacitor C 28,29, resistance R 30, diode D6 link to each other, capacitor C 8 other ends link to each other with inductance L 4, capacitor C 20, C10, capacitor C 10 other ends link to each other with 1 pin of capacitor C 11, inductance L 5, transformer T1; Ground connection after inductance L 5 another pin are connected with R14; 2 pin of transformer T1 link to each other with resistance R 18, capacitor C 14, and 3 pin of transformer T1 link to each other with capacitor C 12, C13, triode V3 emitter, ground connection after capacitor C 2 is connected with resistance R 15; Ground connection after capacitor C 13 is connected with resistance R 16; 4 pin of transformer T1 link to each other with collector electrode, the capacitor C 17 of resistance R 17, capacitor C 15, triode V3, and the base stage of triode V3 links to each other with capacitor C 16, resistance R 20, R21, resistance R 18 other ends link to each other with resistance R 17 other ends and with power circuit in capacitor C 28,29, resistance R 30, diode D6 link to each other; Capacitor C 17 links to each other with inductance L 7, capacitor C 18 with inductance L 6 series connection backs; Capacitor C 18 other ends link to each other with antenna amplifier antennafire output port OUT (AM/FM amplitude modulationfrequency modulation output socket), and output frequency modulation (FM) signal is input to cassette car radio again.
In frequency modulation (FM) automatic gain control circuit (AGC); Capacitor C 20 links to each other with diode D3, inductance L 8; Diode D3 minus earth, inductance L 8 other ends link to each other with capacitor C 21, resistance R 22, R23, and resistance R 23 links to each other with 7 pin of capacitor C 23, dual operational amplifier ic chip 1; The other end of capacitor C 23 links to each other with 6 pin of resistance R 24, dual operational amplifier ic chip 1; 5 steps of dual operational amplifier ic chip 1 link to each other with resistance R 25, and another pin of resistance R 24 links to each other with 3 pin of resistance R 26, capacitor C 24, double diode D5, and another pin of resistance R 25 links to each other with 4 pin of resistance R 27, capacitor C 25, double diode D5; 1 pin of double diode D5 links to each other with resistance R 28, capacitor C 26; The other end of resistance R 28 links to each other with 8 pin of capacitor C 22, dual operational amplifier ic chip 1, again with power circuit in capacitor C 28,29, resistance R 30, diode D6 link to each other, link to each other with resistance C27 again after 2 pin of double diode D5 and inductance L 9, resistance R 29 series connection; Capacitor C 27 other ends amplify output port OUT (AM/FM amplitude modulationfrequency modulation output socket) with antenna and link to each other, output frequency modulation (FM) signal.
In the power circuit, diode D7 links to each other with capacitor C 28, C29, voltage-stabiliser tube D6 with inductance L 1, resistance R 30 series connection backs.
Connect in the positive band stop filter of power supply, capacitor C 30, C31, C32 and inductance L 11 link to each other, and an end of inductance L 11 links to each other another termination capacitor C 30, C31, C32 and the demist of inductance L 11, defrosting power supply with frequency modulation (FM) printed antenna.
Operation principle: the lead-out terminal of the amplitude modulation on the vehicle rear window glass (AM) printed antenna is connected with the capacitor C 1 of antenna amplifier antennafire through intercoil connection; Amplitude modulation (AM) printed antenna receives amplitude-modulated signal and carries out through capacitor C 1, resistance R 1, R3, capacitor C 2 that FET V1 is delivered in frequency-selecting, the V2 grid amplifies; Resistance R 1, R2, double diode D1 play the static inhibitory action; Resistance R 4, R5, R6 are the biasing resistor of FET V1, V2; Resistance R 7, R9 are the direct current negative feedback resistor of FET V1, V2, and capacitor C 3, C4, resistance R 8 are for exchanging negative feedback resistor, and FET V1, V2 are bridging amplifier; Resistance R 10, inductance L 3 are amplifier load; Amplitude modulation (AM) signal is selected to deliver to antenna amplifier antennafire output port OUT (AM/FM amplitude modulationfrequency modulation output socket) through capacitor C 5, inductance L 2 again and is linked to each other after FET V1, V2 amplify, output amplitude modulation (AM) signal is input to cassette car radio again.
The lead-out terminal of frequency modulation (FM) printed antenna is connected with the capacitor C 7 of antenna amplifier antennafire through intercoil connection; Frequency modulation (FM) printed antenna receives the emitter that FM signal carries out after the frequency-selecting delivering to through 1,3 windings of transformer T1 triode V3 through capacitor C 7, C8, C10, C11, resistance R 11, inductance L 4 and amplifies; Resistance R 12, R13, double diode D2 play the static inhibitory action; Inductance L 5, resistance R 14 are the emitter circuit of triode V3, and electroreception L5 plays the wave arrestment effect.Resistance R 15 is connected with capacitor C 12, and resistance R 10 links to each other with triode V3 emitter with capacitor C 13 series connection backs, and it act as regulates the frequency-selecting curve shape, improves the amplifier job stability.2,4 windings of transformer T1, resistance R 17 are triode V3 collector load.Transformer 1,3 windings, 2,4 windings are triode V3 load; FET V1, V2 are bridging amplifier, and resistance R 10, inductance L 3 are amplifier load, and transformer 1,3 windings, 2,4 windings are negative coupling; Improve and amplify stability; Capacitor C 15 is connected with triode V3 collector electrode with resistance R 19, changes output impedance, improves amplifier stability.Resistance R 20, R21, capacitor C 16 are the biasing circuit of triode V3; The modulating FM signal is selected to deliver to antenna amplifier antennafire output port OUT (AM/FM amplitude modulationfrequency modulation output socket) through capacitor C 17, C18, inductance L 6, L7 again and is linked to each other after triode V3 amplifies; Output frequency modulation (FM) signal is input to cassette car radio again.
1 pin that frequency modulation (FM) signal is delivered to double diode D2 through capacitor C 7 carries out detection, and resistance R 28, R29, capacitor C 26, inductance L 9 provide 1 pin, the 2 pin direct current reference levels of double diode D5, and resistance R 24, R25, R26, R27 are the output circuit of double diode D5; Under the smaller situation of frequency modulation (FM) signal; 3 pin of double diode D5 and 4 pin output levels are for waiting level, and the 7 pin output DCs of dual operational amplifier IC1 are flat to be zero, when the modulating FM signal greater than 0.3V; 1, the 4 pin conductings of double diode D5; The 4th pin voltage is greater than 3 pin voltages, and the 5 pin voltages of dual operational amplifier IC1 improve simultaneously, 7 pin output high level; After R22, R23, C21 filtering dividing potential drop, be added to the positive pole of diode D3 through inductance L 8; Diode current flow, frequency modulation (FM) signal is shunted, thereby is played frequency modulation (FM) signal automatic gain control action through capacitor C 20, diode D3.
The power supply of coaxial cable power supply is supplied with amplitude modulation (AM) and frequency modulation (FM) amplifier DC power supply respectively after through diode D7 and inductance L 10, resistance R 30, capacitor C 28, C29 and voltage-stabiliser tube D6 filtering voltage regulation.Connect in the positive band stop filter of power supply; Another terminal of the frequency modulation of vehicle rear window glass (FM) printed antenna is received inductance L 11 through connecting line; Concerning frequency modulation (FM) signal is high impedance, direct current signal resistance is hindered very little, and the defrosting DC power supply carries out filtering through capacitor C 30, C31, C32 to the defrosting power supply; The removal power supply disturbs, and another terminal that is added to frequency modulation (FM) printed antenna through inductance L 11 carries out demist, defrosting.The power supply that the power supply of coaxial cable power supply, demist, defrosting DC power supply all adopt automobile to provide.
Frequency modulation (FM) printed antenna opposite side at vehicle rear window glass is equipped with filling-in bit terminal; The band stop filter of ground connection links to each other with frequency modulation (FM) printed antenna through filling-in bit terminal; The band stop filter other end ground connection of ground connection; The band stop filter effect makes antenna form high impedance, and aerial signal can be with ground short circuit.
Amplitude modulation (AM) after the antenna amplifier antennafire circuit amplifies, frequency modulation (FM) signal are input to cassette car radio through amplifier out through coaxial cable.
Frequency modulation (FM) printed antenna, amplitude modulation (AM) printed antenna adopt silver slurry printed antenna or copper slurry printed antenna or tin slurry printed antenna respectively, and printed antenna is printed on the vehicle rear window glass.Frequency modulation (FM) printed antenna can adopt demist, defrosting heater wire.
Reasonable in design, the compact conformation of printing antenna system of vehicle rear window glass because frequency modulation (FM) printed antenna and amplitude modulation (AM) printed antenna all adopt some antennas, increases the signal quantities received, improves reception; The present invention is arranged frequency modulation (FM) printed antenna and amplitude modulation (AM) printed antenna branch; The ability rational Match can improve reception, amplifying signal is input to cassette car radio uses; Make FM signal, amplitude-modulated signal in, any direction, all keep good reception in any case; Can improve the quantity of receiving platform greatly, improve the definition that receives sound, reduce frequency modulation, the interference of amplitude modulation reception signal.Because antenna amplifier antennafire circuit of the present invention is provided with frequency modulation (FM) automatic gain control circuit (AGC) and can plays frequency modulation (FM) signal automatic gain control action, further improves frequency modulation (FM) signal reception.Because the frequency modulation printed antenna can adopt the demist heater wire, the frequency modulation printed antenna can also be made demist heater wire usefulness, can remove water smoke, frost on the rear window after the energized, thereby reduce production cost, has increased effect.Connect the positive band stop filter of power supply and be arranged in the amplifier, make compact conformation, convenient by dress.Therefore, printing antenna system of vehicle rear window glass is specially adapted to do Advanced Sedan Car sound equipment antenna.
Embodiment
With reference to accompanying drawing 1,2, printing antenna system of vehicle rear window glass is characterized in that vehicle rear window glass is provided with frequency modulation (FM) printed antenna, amplitude modulation (AM) printed antenna; The frequency modulation printed antenna is provided with some antennas, and the amplitude modulation printed antenna is provided with some antennas; Frequency modulation (FM) printed antenna, amplitude modulation (AM) printed antenna are respectively equipped with the printed antenna output; Frequency modulation (FM) printed antenna links to each other with antenna amplifier antennafire through intercoil connection respectively with the printed antenna output of amplitude modulation (AM) printed antenna, is provided with in the antenna amplifier antennafire and connects the positive band stop filter of power supply.In frequency modulation (FM) printed antenna one side elastic contact chip is housed, connects the positive band stop filter of power supply and link to each other with elastic contact chip.At frequency modulation (FM) printed antenna opposite side the band stop filter of elastic contact chip, ground connection is housed, band stop filter one end of ground connection links to each other other end ground connection with elastic contact chip.The band stop filter of ground connection makes antenna form high impedance, and aerial signal can be with ground short circuit.
Antenna amplifier antennafire comprises amplifier housing, amplifier electron circuit board, antenna amplifier antennafire circuit, input socket and output socket; The input socket adopts ZF input socket, and output socket adopts AM/FM amplitude modulationfrequency modulation output socket.Device has amplifier to be connected reed with antenna on the electronic circuit board.
The antenna amplifier antennafire circuit comprises amplitude modulation (AM) printed antenna amplifying circuit, frequency modulation (FM) printed antenna amplifying circuit, frequency modulation (FM) automatic gain control circuit (AGC), power circuit and connects the positive band stop filter of power supply.
Amplitude modulation (AM) printed antenna amplifying circuit comprises capacitor C 1~C6, resistance R 1~R10, inductance L 1~L3, double diode D1 and technotron V1, V2.
Frequency modulation (FM) printed antenna amplifying circuit comprises capacitor C 7~C19, resistance R 11~R21, inductance L 4~L7, double diode D2, transformer T1 and triode V3.
Frequency modulation (FM) automatic gain control circuit (AGC) comprises capacitor C 20~C27, resistance R 22~R29, diode D3, double diode D5 and dual operational amplifier ic chip 1.The dual operational amplifier integrated package adopts LM2904 dual operational amplifier integrated package.
Power circuit comprises capacitor C 28, C29, voltage stabilizing didoe D6, resistance R 30, inductance L 10 and diode D7.
Connect the positive band stop filter of power supply and comprise capacitor C 30, C31, C32 and inductance L 11.
In the antenna amplifier antennafire circuit, amplitude modulation (AM) printed antenna links to each other with capacitor C 1 one ends, and capacitor C 1 other end links to each other with 1 pin of resistance R 1, R2, R3, inductance L 1, double diode D1; Resistance R 3 links to each other with capacitor C 2 one ends with inductance L 1 parallel connection back; Capacitor C 28,29, resistance R 30, diode D6 link to each other in the 2 pin ground connection of double diode D1,3 pin of double diode D1 and resistance R 2, R4 and power circuit, and resistance R 4 links to each other with the end of resistance R 5, R6; The other end of capacitor C 2 links to each other with resistance R 5, FET V1 grid; The source electrode of FET V1 links to each other with resistance R 7, capacitor C 3, and the source electrode of FET V2 links to each other with capacitor C 4, resistance R 9, and resistance R 8 links to each other with capacitor C 3, C4; The drain electrode of FET V1, V2 links to each other with inductance L 3, resistance R 10, capacitor C 5; Capacitor C 5 links to each other with antenna amplifier antennafire output port OUT (AM/FM amplitude modulationfrequency modulation output socket) with inductance L 5 series connection backs, and output amplitude modulation (AM) signal is input to cassette car radio again.
Frequency modulation (FM) printed antenna links to each other with capacitor C 7 one ends; Link to each other with 1 pin, resistance R 13, the capacitor C 8 of resistance R 12, double diode D2 again after 11 series connection of capacitor C 7 other ends and resistance R; 3 pin of double diode D2 link to each other with resistance R 13 other ends, capacitor C 9 back with power circuit in capacitor C 28,29, resistance R 30, diode D6 link to each other, capacitor C 8 other ends link to each other with inductance L 4, capacitor C 20, C10, capacitor C 10 other ends link to each other with 1 pin of capacitor C 11, inductance L 5, transformer T1; Ground connection after inductance L 5 another pin are connected with R14; 2 pin of transformer T1 link to each other with resistance R 18, capacitor C 14, and 3 pin of transformer T1 link to each other with capacitor C 12, C13, triode V3 emitter, ground connection after capacitor C 2 is connected with resistance R 15; Ground connection after capacitor C 13 is connected with resistance R 16; 4 pin of transformer T1 link to each other with collector electrode, the capacitor C 17 of resistance R 17, capacitor C 15, triode V3, and the base stage of triode V3 links to each other with capacitor C 16, resistance R 20, R21, resistance R 18 other ends link to each other with resistance R 17 other ends and with power circuit in capacitor C 28,29, resistance R 30, diode D6 link to each other; Capacitor C 17 links to each other with inductance L 7, capacitor C 18 with inductance L 6 series connection backs; Capacitor C 18 other ends link to each other with antenna amplifier antennafire output port OUT (AM/FM amplitude modulationfrequency modulation output socket), and output frequency modulation (FM) signal is input to cassette car radio again.
In frequency modulation (FM) automatic gain control circuit (AGC); Capacitor C 20 links to each other with diode D3, inductance L 8; Diode D3 minus earth, inductance L 8 other ends link to each other with capacitor C 21, resistance R 22, R23, and resistance R 23 links to each other with 7 pin of capacitor C 23, dual operational amplifier ic chip 1; The other end of capacitor C 23 links to each other with 6 pin of resistance R 24, dual operational amplifier ic chip 1; 5 steps of dual operational amplifier ic chip 1 link to each other with resistance R 25, and another pin of resistance R 24 links to each other with 3 pin of resistance R 26, capacitor C 24, double diode D5, and another pin of resistance R 25 links to each other with 4 pin of resistance R 27, capacitor C 25, double diode D5; 1 pin of double diode D5 links to each other with resistance R 28, capacitor C 26; The other end of resistance R 28 links to each other with 8 pin of capacitor C 22, dual operational amplifier ic chip 1, again with power circuit in capacitor C 28,29, resistance R 30, diode D6 link to each other, link to each other with resistance C27 again after 2 pin of double diode D5 and inductance L 9, resistance R 29 series connection; Capacitor C 27 other ends amplify output port OUT (AM/FM amplitude modulationfrequency modulation output socket) with antenna and link to each other, output frequency modulation (FM) signal.
In the power circuit, diode D7 links to each other with capacitor C 28, C29, voltage-stabiliser tube D6 with inductance L 1, resistance R 30 series connection backs.
Connect in the positive band stop filter of power supply, capacitor C 30, C31, C32 and inductance L 11 link to each other, and an end of inductance L 11 links to each other another termination capacitor C 30, C31, C32 and the demist of inductance L 11, defrosting power supply with frequency modulation (FM) printed antenna.
Described double diode D1, D2 adopt ISS226 type double diode, and triode D3 adopts BAS70-07 type double diode.
Frequency modulation (FM) printed antenna, amplitude modulation (AM) printed antenna adopt silver slurry printed antenna or copper slurry printed antenna or tin slurry printed antenna respectively, and printed antenna is printed on the vehicle rear window glass.Frequency modulation (FM) printed antenna can adopt demist, defrosting heater wire, can remove water smoke, frost on the rear window after the energized.The power supply that the power supply of coaxial cable supply power circuit and demist heater wire all adopt automobile to provide with demist, defrosting power supply.