CN207321236U - Auto Small Antenna Amplifier - Google Patents
Auto Small Antenna Amplifier Download PDFInfo
- Publication number
- CN207321236U CN207321236U CN201721290684.9U CN201721290684U CN207321236U CN 207321236 U CN207321236 U CN 207321236U CN 201721290684 U CN201721290684 U CN 201721290684U CN 207321236 U CN207321236 U CN 207321236U
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- Prior art keywords
- capacitance
- inductance
- resistance
- antenna amplifier
- electronic circuit
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Abstract
The utility model Auto Small Antenna Amplifier refers to a kind of windshield printed antenna small size antenna amplifier, suitable for vehicle-mounted cassette car radio antenna reception system；Including antenna amplifier antennafire shell, electronic circuit board, stent, signal output plug, power input socket, parallel coaxial-cable line and aerial signal terminal；Electronic circuit board is housed, antenna amplifier antennafire outer cover suit is on stent on stent；Antenna amplifier antennafire electronic component is provided with electronic circuit board, electronic circuit board one end is connected with aerial signal terminal, aerial signal terminal is connected with windshield printed antenna, the electronic circuit board other end is connected with parallel coaxial-cable line, and parallel coaxial-cable line is connected with signal output plug, power input socket；Electronic circuit includes amplitude modulation input frequency selection circuit, amplitude modulation amplifying circuit, amplitude modulation output frequency selection circuit, frequency modulation input frequency selection circuit, frequency modulation amplifying circuit, frequency modulation output frequency selection circuit, power circuit, electrostatic protection electricity.
Description
Technical field
The utility model Auto Small Antenna Amplifier refers to a kind of windshield printed antenna small size antenna
Amplifier, suitable for vehicle-mounted cassette car radio antenna reception system.
Background technology
Current front windshield automobile antenna amplifier volume is big, and installation is not convenient enough.Electronic circuit plate bulk is big, electricity
Sub-line road is more complicated.Windshield printed antenna needs a kind of small size antenna amplifier, suitable for vehicle-mounted automobile folding and unfolding
Machine antenna reception system.
The content of the invention
The purpose of this utility model is to be directed to above-mentioned shortcoming, provides a kind of Auto Small Antenna Amplifier, using point
From formula across keeping off bigger inductance element, simplify amplifier electron circuit, and use two-sided copper foil plate, be substantially reduced amp bank
Product, reduces production cost, use is easily installed, suitable for vehicle-mounted cassette car radio antenna reception system.
Auto Small Antenna Amplifier takes following scheme to realize：
Auto Small Antenna Amplifier includes antenna amplifier antennafire shell, electronic circuit board, stent, signal output plug, electricity
Source input socket, parallel coaxial-cable line, aerial signal terminal, be equipped with mounting hole on stent equipped with electronic circuit board, stent,
Antenna amplifier antennafire outer cover suit is on stent.Antenna amplifier antennafire electronic component, electronic circuit board are provided with electronic circuit board
One end is connected with aerial signal terminal (slotting spring), and aerial signal terminal is connected with windshield printed antenna, electric wire
The road plate other end is connected with parallel coaxial-cable line, and parallel coaxial-cable line is connected with signal output plug, power input is inserted
Seat.Electronic circuit board uses two-sided deposited copper foil plate.
Electronic circuit includes amplitude modulation input frequency selection circuit, amplitude modulation amplifying circuit, amplitude modulation output frequency selection circuit, frequency modulation input choosing
Frequency circuit, frequency modulation amplifying circuit, frequency modulation output frequency selection circuit, power circuit, electrostatic discharge protective circuit.
Amplitude modulation input frequency selection circuit is made of capacitance Cl, inductance Ll, resistance R1.
Amplitude modulation amplifying circuit by resistance R2, R3, R4, R12, R5, R6, R7, field-effect tube V1, V2, capacitance C3, C4,
C5, inductance L2 are formed.
Amplitude modulation output frequency selection circuit is made of inductance L3, capacitance C6.
Frequency modulation input frequency selection circuit includes capacitance C7, C8, C9, inductance L4, inductance L5, resistance R9, R10.
Frequency modulation amplifying circuit includes resistance R11, R13, R15, R16, capacitance C10, inductance L6, transformer Tl, triode
V4, double diode V5.
Frequency modulation output frequency selection circuit includes inductance L7, inductance L8, capacitance C11, C12.
Power circuit includes zener diode D1, diode D2, capacitance C13, C14, C15, inductance L9, inductance L8, resistance
R17、R18。
Electrostatic discharge protective circuit is made of double diode V3.
The capacitance Cl mono- of amplitude modulation input frequency selection circuit terminates windshield aerial signal terminal in electronics electric line,
The capacitance C1 other ends are protected by the capacitance C3 in inductance Ll, resistance R1 connection amplitude modulation amplifying circuits, resistance R2, electrostatic
1 foot of the double diode V 3 in protection circuit, the capacitance C3 other ends and resistance R2, the grid phase of field-effect tube V1, V2
Even, source electrode connection resistance R5, the source electrode of capacitance C4, V2 of field-effect tube V1 is connected with capacitance C5, resistance R7, capacitance
The C5 other ends are connected with capacitance C4, resistance R6, after field-effect tube V1 is in parallel with the drain electrode of field-effect tube V2 with inductance L2,
L3 is connected, and inductance L2, L3 connect parallel coaxial-cable signal output part.
Capacitance C7 mono- in frequency modulation input frequency selection circuit terminates shield glass aerial signal terminal, and capacitance C7's is another
One end connects inductance L5, capacitance C8, capacitance C9, resistance R10, another termination inductance of capacitance C9 by inductance L4, resistance R9
1 foot of L6, transformer Tl, inductance L6 are grounded by R11.The base stage of triode V4 connects double diode by resistance R13
V 52 feet, 1 foot connection capacitance C10, the resistance R15 of double diode V 5, capacitance C10 other ends ground connection, resistance R15 connect
Connect the 3rd feet of transformer T1, the resistance R16 other ends.Triode V4 emitters connect 4 feet, resistance R16, electricity of transformer T1
Feel L7, the collector of triode V4 connects 2 feet of transformer Tl, and the other end of inductance L7 connects inductance by capacitance C11
L8, capacitance C12, inductance L8 other ends ground connection, another termination wireless signal output terminals of capacitance C12.
The diode D2 mono- of power unit terminates power input, another terminating resistor R17, R18.Resistance R17, R18
The other end meets capacitance C13, C14, C15, zener diode D1 and inductance L2 one end, double diode V3 by inductance L9
3 feet.The 2 feet ground connection of double diode V3.
Auto Small Antenna Amplifier design is reasonable, compact-sized, due to simplifying amplifier electron circuit, using separation
Formula uses two-sided deposited copper foil plate, is substantially reduced amplifier volume, is easily installed across the bigger inductance element of gear, electronic circuit board
Use, reduce production cost.The utility model automobile antenna amplifier input, output-resistor matches, and it is more to receive radio station.Automobile
Small size antenna amplifier meets windshield printed antenna, and system is received especially suitable for vehicle-mounted cassette car radio antenna
System.
Brief description of the drawings
Below with reference to attached drawing, the utility model is described in further detail.
Fig. 1 is Auto Small Antenna Amplifier schematic diagram.
Fig. 2 is the electronic schematic of Auto Small Antenna Amplifier.
Embodiment
Referring to the drawings 1-2, Auto Small Antenna Amplifier structure includes antenna amplifier antennafire shell 5, electronic circuit board, stent
4th, signal output plug 2, power input socket 3, parallel coaxial-cable line 1, aerial signal terminal 6, be equipped with stent 4
Electronic circuit is pulled, stent 4 is equipped with mounting hole 7, and antenna amplifier antennafire shell 5 is sleeved on stent 4, antenna amplifier antennafire shell
5 sections are rectangle or square or triangle or trapezoidal or circular or ellipse etc..In antenna amplifier antennafire shell 5 one
Side is provided with layers of two-sided 8, pastes and installs easy to antenna amplifier antennafire.Layers of two-sided can use acrylic acid bubble continuous.Electronic circuit
Antenna amplifier antennafire electronic component is provided with plate, electronic circuit board one end is connected with aerial signal terminal (slotting spring) 6, day
Line signal terminal 6 is connected with windshield printed antenna, and the electronic circuit board other end is connected with parallel coaxial-cable line 1,
Parallel coaxial-cable line 1 is connected with signal output plug 2, power input socket 3.Electronic circuit board uses two-sided deposited copper foil
Plate.
Electronic circuit includes amplitude modulation input frequency selection circuit, amplitude modulation amplifying circuit, amplitude modulation output frequency selection circuit, frequency modulation input choosing
Frequency circuit, frequency modulation amplification appliance, frequency modulation output frequency selection circuit, power circuit, electrostatic discharge protective circuit.
Amplitude modulation input frequency selection circuit is made of capacitance Cl, inductance Ll, resistance R1.
Amplitude modulation amplifying circuit by resistance R2, R3, R4, R12, R5, R6, R7, field-effect tube V1, V2, capacitance C3,
C4, C5, inductance L2 are formed.
Amplitude modulation output frequency selection circuit is made of inductance L3, capacitance C6.
Frequency modulation input frequency selection circuit includes capacitance C7, C8, C9, inductance L4, inductance L5, resistance R9, R10.
Frequency modulation amplifying circuit includes resistance R11, R13, R15, R16, capacitance C10, inductance L6, transformer Tl, triode
V4, double diode V5.
Frequency modulation output frequency selection circuit includes inductance L7, inductance L8, capacitance C11, C12.
Power circuit includes zener diode D1, diode D2, capacitance C13, C14, C15, inductance L9, inductance L8, resistance
R17、R18。
Electrostatic discharge protective circuit is made of double diode V3.
The capacitance Cl mono- of amplitude modulation input frequency selection circuit terminates windshield aerial signal terminal in electronics electric line,
The capacitance C1 other ends are protected by the capacitance C3 in inductance Ll, resistance R1 connection amplitude modulation amplifying circuits, resistance R2, electrostatic
1 foot of the double diode V 3 in protection circuit, the capacitance C3 other ends and resistance R2, the grid phase of field-effect tube V1, V2
Even, source electrode connection resistance R5, the source electrode of capacitance C4, V2 of field-effect tube V1 is connected with capacitance C5, resistance R7, capacitance
The C5 other ends are connected with capacitance C4, resistance R6, after field-effect tube V1 is in parallel with the drain electrode of field-effect tube V2 with inductance L2,
L3 is connected, and inductance L2, L3 connect parallel coaxial-cable signal output part.
Capacitance C7 mono- in frequency modulation input frequency selection circuit terminates shield glass aerial signal terminal, and capacitance C7's is another
One end connects inductance L5, capacitance C8, capacitance C9, resistance R10, another termination electricity of capacitance C9 by inductance L4, resistance R9
Feel L6,1 foot of transformer Tl, inductance L6 is grounded by R11.The base stage of triode V4 connects double two poles by resistance R13
2 feet of pipe V 5,1 foot connection capacitance C10, the resistance R15 of double diode V 5, capacitance C10 other ends ground connection, resistance R15
Connect the 3rd feet of transformer T1, the resistance R16 other ends.Triode V4 emitters connect 4 feet, resistance R16, electricity of transformer T1
Feel L7, the collector of triode V4 connects 2 feet of transformer Tl, and the other end of inductance L7 connects inductance by capacitance C11
L8, capacitance C12, inductance L8 other ends ground connection, another termination wireless signal output terminals of capacitance C12.
The diode D2 mono- of power unit terminates power input, another terminating resistor R17, R18.Resistance R17, R18
The other end meets capacitance C13, C14, C15, zener diode D1 and inductance L2 one end, double diode V3 by inductance L9
3 feet.The 2 feet ground connection of double diode V3.
Operation principle:When aerial signal passes through capacitance Cl, amplitude-modulated signal is selected in inductance L1 frequency-selectings,
It is coupled to the grid of field-effect tube V1, field-effect tube V2 by capacitance Cl, resistance R12, R2, R3, R4 are carried
For the bias current of Vl, V2, resistance R5 is the DC feedback resistance of V1, and resistance R7 is the DC feedback resistance of V2, capacitance C4
It is the ac coupling capacitor of V l, capacitance C5 is the ac coupling capacitor of field-effect tube V2, negative anti-by resistance R6 exchanges
Feedback, inductance L2 are the collector loads of field-effect tube V 1, V 2, signal by field-effect tube Vl, V 2 amplifications by inductance L3,
Capacitance C4 frequency-selectings export amplitude-modulated signal.
When aerial signal by capacitance C7, inductance L4, L5 frequency-selecting partial pressure, select FM signal,
FM signal amplification is carried out by T1 level 1-2 foot of transformer to triode V4, after amplification
Signal through inductance L7, L8, capacitance Cll, C12 frequency-selecting export.
External power supply is by diode D2 one-way conductions, then passes through resistance R17, R18, inductance L9
With capacitance C13, C14, C15 filtering and zener diode D1 voltage stabilizings, there is provided field-effect tube V1, V2, double diode
V3, triode V4 direct-current working volts.
Claims (7)
- A kind of 1. Auto Small Antenna Amplifier, it is characterised in that：Including antenna amplifier antennafire shell, electronic circuit board, stent, letter Number output plug, power input socket, parallel coaxial-cable line and aerial signal terminal；Electronic circuit board, day are housed on stent Line amplifier outer cover suit is on stent；Antenna amplifier antennafire electronic component, electronic circuit board one are provided with electronic circuit board End is connected with aerial signal terminal, and aerial signal terminal is connected with windshield printed antenna, the electronic circuit board other end Parallel coaxial-cable line is connected with, parallel coaxial-cable line is connected with signal output plug, power input socket；Electronic circuit includes amplitude modulation input frequency selection circuit, amplitude modulation amplifying circuit, amplitude modulation output frequency selection circuit, frequency modulation input frequency-selecting electricity Road, frequency modulation amplifying circuit, frequency modulation output frequency selection circuit, power circuit, electrostatic discharge protective circuit；Amplitude modulation input frequency selection circuit is made of capacitance Cl, inductance Ll, resistance R1；Amplitude modulation amplifying circuit is by resistance R2, R3, R4, R12, R5, R6, R7, field-effect tube V1, V2, capacitance C3, C4, C5, electricity Feel L2 compositions；Amplitude modulation output frequency selection circuit is made of inductance L3, capacitance C6；Frequency modulation input frequency selection circuit includes capacitance C7, C8, C9, inductance L4, inductance L5 and resistance R9, R10；Frequency modulation amplifying circuit includes resistance R11, R13, R15, R16, capacitance C10, inductance L6, transformer Tl, triode V4 and double Diode V5；Frequency modulation output frequency selection circuit includes inductance L7, inductance L8 and capacitance C11, C12；Power circuit includes zener diode D1, diode D2, capacitance C13, C14, C15, inductance L9, inductance L8 and resistance R17、R18；Electrostatic discharge protective circuit is made of double diode V3.
- 2. Auto Small Antenna Amplifier according to claim 1, it is characterised in that：Amplitude modulation input choosing in electronics electric line The capacitance Cl mono- of frequency circuit terminates windshield aerial signal terminal, and the capacitance C1 other ends pass through inductance Ll, electricity 1 foot of capacitance C3, resistance R2 in resistance R1 connection amplitude modulation amplifying circuits, the double diode V 3 in electrostatic discharge protective circuit, The capacitance C3 other ends and resistance R2, the grid of field-effect tube V1, V2 are connected, the source electrode connection resistance of field-effect tube V1 R5, capacitance C4, the source electrode of field-effect tube V2 are connected with capacitance C5, resistance R7, the capacitance C5 other ends and capacitance C4, resistance R6 is connected, and field-effect tube V1 is connected with after the drain electrode parallel connection of field-effect tube V2 with inductance L2, L3, and inductance L2, L3 connect parallel same Shaft cable signal output part；Capacitance C7 mono- in frequency modulation input frequency selection circuit terminates shield glass aerial signal terminal, the other end of capacitance C7 Inductance L5, capacitance C8, capacitance C9, resistance R10 are connect by inductance L4, resistance R9, another termination inductance L6 of capacitance C9, 1 foot of transformer Tl, inductance L6 are grounded by R11；The base stage of triode V4 connects double diode V 5 by resistance R13 2 feet, 1 foot connection capacitance C10, the resistance R15 of double diode V 5, capacitance C10 other ends ground connection, resistance R15 connection transformations The 3rd feet of device T1, the resistance R16 other ends；Triode V4 emitters connect 4 feet, resistance R16, inductance L7 of transformer T1, The collector of triode V4 connects 2 feet of transformer Tl, and the other end of inductance L7 connects inductance L8, capacitance by capacitance C11 C12, inductance the L8 other end are grounded, another termination wireless signal output terminals of capacitance C12；The diode D2 mono- of power unit terminates power input, another terminating resistor R17, R18；Resistance R17, R18 are another End by inductance L9 connect capacitance C13, C14, C15, zener diode D1 and inductance L2 one end, double diode V3 3 Foot, the 2 feet ground connection of double diode V3.
- 3. Auto Small Antenna Amplifier according to claim 1, it is characterised in that：Stent is equipped with mounting hole.
- 4. Auto Small Antenna Amplifier according to claim 1, it is characterised in that：Electronic circuit board uses double-side copper-applying Paper tinsel plate.
- 5. Auto Small Antenna Amplifier according to claim 1, it is characterised in that：Antenna amplifier antennafire shell section is length Square or square or triangle is trapezoidal or circular or oval.
- 6. Auto Small Antenna Amplifier according to claim 1, it is characterised in that：Set in antenna amplifier antennafire shell side Layers of two-sided is equipped with, pastes and installs easy to antenna amplifier antennafire.
- 7. Auto Small Antenna Amplifier according to claim 6, it is characterised in that：Layers of two-sided is steeped using acrylic acid It is continuous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290684.9U CN207321236U (en) | 2017-10-09 | 2017-10-09 | Auto Small Antenna Amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290684.9U CN207321236U (en) | 2017-10-09 | 2017-10-09 | Auto Small Antenna Amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207321236U true CN207321236U (en) | 2018-05-04 |
Family
ID=62429035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721290684.9U Active CN207321236U (en) | 2017-10-09 | 2017-10-09 | Auto Small Antenna Amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207321236U (en) |
-
2017
- 2017-10-09 CN CN201721290684.9U patent/CN207321236U/en active Active
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