CN105991113A - Low-noise high-output 400-500MHz high-efficiency solid microwave source - Google Patents
Low-noise high-output 400-500MHz high-efficiency solid microwave source Download PDFInfo
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- CN105991113A CN105991113A CN201510980773.5A CN201510980773A CN105991113A CN 105991113 A CN105991113 A CN 105991113A CN 201510980773 A CN201510980773 A CN 201510980773A CN 105991113 A CN105991113 A CN 105991113A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/13—Arrangements having a single output and transforming input signals into pulses delivered at desired time intervals
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Abstract
The invention discloses a low-noise high-output 400MHz-500MHz high-efficiency solid microwave source comprising a tuning circuit, a DC power supply circuit, an oscillating circuit, a buffer circuit and a filter circuit. The tuning circuit, the oscillating circuit, the buffer circuit and the filter circuit are connected in turn. The low-noise high-output 400MHz-500MHz high-efficiency solid microwave source is established by using discrete components and has a small size. The size can be controlled at the centimeter magnitude if piece components are used, and cost is lower. Appropriate variodes and inductors are selected according to different design requirements so that the required frequency regulation range and power output can be conveniently acquired. The low-noise high-output 400MHz-500MHz high-efficiency solid microwave source has great universality in the frequency band of 400MHz -500MHz and is low-noise and high-output, high in efficiency, great in spectrum purity and smooth in output.
Description
Technical field
The present invention relates to solid state microwave source domain, the 400-500MHz High Efficiency Solid-State of a kind of low noise sound pitch output is micro-
Wave source.
Background technology
Voltage-Controlled oscillation circuit (VCO) is the important component part in microwave circuit, can be used for signal generator, electronic music
In be used for manufacture the frequency synthesizer etc. in modified tone, phase-locked loop, communication apparatus, be requisite one of a lot of microwave circuit
Point.The kind of integrated VCO chip is a lot, but integrated VCO is in order to reach required frequency, consumes higher power, and efficiency is relatively
Low.For some circuit, particularly battery feed circuit, integrated VCO power consumption is too big, and volume is excessive, causes the waste of resource.
Summary of the invention it is an object of the invention to provide the 400-500MHz High Efficiency Solid-State microwave of a kind of low noise sound pitch output
Source, to solve the problem that prior art exists.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of 400-500MHz High Efficiency Solid-State microwave source of low noise sound pitch output, it is characterised in that: include the most interconnective
Tuning circuit, oscillating circuit, buffer circuit, filter circuit, and supply power to the powered by direct current of oscillating circuit and buffer circuit
Circuit, wherein:
Described tuning circuit includes VT Vtune, two inductance L1 and L0, diode D1, three electric capacity C1, C2 and C3,
Described inductance L1 one end and diode D1 anode ground connection altogether, after the inductance L1 other end and diode D1 negative electrode connect altogether, then with electricity
Sense L0 one end is connected to electric capacity C1 one end altogether, and the electric capacity C1 other end is connected to oscillating circuit, and VT Vtune is connected to inductance L0
Respectively by electric capacity C2, electric capacity C3 ground connection between the other end, and VT Vtune and inductance L0；
Described powered by direct current circuit includes supply voltage Vc1, inductance L2, electric capacity C4, electric capacity C5, and described supply voltage Vc1 is even
Being connected to inductance L2 one end, the inductance L2 other end is connected to oscillating circuit, passes through electric capacity between supply voltage Vc1 and inductance L2 respectively
C4, electric capacity C5 ground connection；
Described oscillating circuit includes high-frequency triode Q1, and resistance R1, R2 and R3, first port of high-frequency triode Q1 and tune
In humorous circuit, the electric capacity C1 other end connects, and first port of high-frequency triode Q1 is the most respectively by resistance R2 ground connection, and unidirectional current supplies
In electricity circuit, the inductance L2 other end is connected by first port of resistance R1 and high-frequency triode Q1, electricity in powered by direct current circuit
The sense L2 other end is connected also by second port of resistance R3 and high-frequency triode Q1, and second port of high-frequency triode Q1 also connects
It is connected to buffer circuit, the 3rd port ground connection of high-frequency triode Q1；
Described buffer circuit includes supply voltage Vc2, high-frequency triode Q2, resistance R4 and R5, electric capacity C6 and C7, described high frequency three
First port of pole pipe Q2 is connected by second port of electric capacity C6 and oscillating circuit medium-high frequency audion Q1, high-frequency triode Q2
The first port be connected with supply voltage Vc2 also by resistance R4, second port of high-frequency triode Q2 and supply voltage Vc2 are even
Connecing, second port of high-frequency triode Q2 is connected to filter circuit also by electric capacity C7, and the 3rd port of high-frequency triode Q2 leads to
Cross resistance R5 ground connection；
Described filter circuit includes inductance L3, electric capacity C8 and C9, inductance L3 one end and buffer circuit medium-high frequency audion Q2 second
On port, electric capacity C7 connects, and the inductance L3 other end is as outfan, and passes through electric capacity C8 ground connection, electricity between inductance L3 and electric capacity C7
Sense L3 passes through electric capacity C9 ground connection as the other end of outfan.
The 400-500MHz High Efficiency Solid-State microwave source of described a kind of low noise sound pitch output, it is characterised in that: supply voltage
Vc1 and Vc2 uses two independent current sources, if both voltage is identical, it is also possible to share same power supply.
The 400-500MHz High Efficiency Solid-State microwave source of described a kind of low noise sound pitch output, it is characterised in that: high frequency three pole
First port of pipe Q1 and Q2 is base stage, and the second port is colelctor electrode, and the 3rd port is emitter stage.
The 400-500MHz High Efficiency Solid-State microwave source of described a kind of low noise sound pitch output, it is characterised in that: whole circuit
Additional lastblock metallic shield, reduces external electromagnetic interference greatly.
Advantage of the present invention is:
Owing to assembly of the invention is being tried out in 400MHz-500MHz, can be changed by the VT of regulation tuning circuit
The output frequency of circuit, principle is the resonant frequency changing the LC resonant tank being made up of diode and inductance.By regulation
Buffer circuit, the numerical value of resistance-inductance-capacitance of powered by direct current circuit, can adjust the power of output efficiently, and export
There is preferable flatness.Filter circuit makes output purer, suppression interference.If this device uses the paster unit that encapsulation is less
Part, structure of this invention can accomplish the size of a centimetre, and low-noise high efficiency, and the purity of frequency spectrum is preferable, exports smooth..
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
Fig. 2 is present configuration theory diagram.
Detailed description of the invention
Shown in Figure 1, the 400-500MHz High Efficiency Solid-State microwave source of a kind of low noise sound pitch output, including interconnecting mutually
The tuning circuit 1 that connects, oscillating circuit 3, buffer circuit 4, filter circuit 5, and supply power to oscillating circuit 3 and buffer circuit 4
Powered by direct current circuit 2, wherein:
Tuning circuit 1 includes VT Vtune, two inductance L1 and L0, diode D1, three electric capacity C1, C2 and C3, inductance
L1 one end and diode D1 anode ground connection altogether, after the inductance L1 other end and diode D1 negative electrode connect altogether, then with inductance L0 one end
Being connected to electric capacity C1 one end altogether, the electric capacity C1 other end is connected to oscillating circuit, and VT Vtune is connected to the inductance L0 other end,
And respectively by electric capacity C2, electric capacity C3 ground connection between VT Vtune and inductance L0；
Powered by direct current circuit 2 includes supply voltage Vc1, inductance L2, electric capacity C4, electric capacity C5, and supply voltage Vc1 is connected to inductance
L2 one end, the inductance L2 other end is connected to oscillating circuit, respectively by electric capacity C4, electric capacity between supply voltage Vc1 and inductance L2
C5 ground connection；
Oscillating circuit 3 includes high-frequency triode Q1, and resistance R1, R2 and R3, first port of high-frequency triode Q1 and tuning
In circuit, the electric capacity C1 other end connects, and first port of high-frequency triode Q1 is the most respectively by resistance R2 ground connection, powered by direct current
In circuit, the inductance L2 other end is connected by first port of resistance R1 and high-frequency triode Q1, inductance in powered by direct current circuit
The L2 other end is connected also by second port of resistance R3 and high-frequency triode Q1, and second port of high-frequency triode Q1 is also connected with
To buffer circuit, the 3rd port ground connection of high-frequency triode Q1；
Buffer circuit 4 includes supply voltage Vc2, high-frequency triode Q2, resistance R4 and R5, electric capacity C6 and C7, high-frequency triode Q2
The first port be connected by second port of electric capacity C6 and oscillating circuit medium-high frequency audion Q1, the first of high-frequency triode Q2
Port is connected with supply voltage Vc2 also by resistance R4, and second port of high-frequency triode Q2 is connected with supply voltage Vc2, high
Frequently second port of audion Q2 is connected to filter circuit also by electric capacity C7, and the 3rd port of high-frequency triode Q2 passes through resistance
R5 ground connection；
Filter circuit 5 includes inductance L3, electric capacity C8 and C9, inductance L3 one end and buffer circuit medium-high frequency audion Q2 the second end
On mouth, electric capacity C7 connects, and the inductance L3 other end is as outfan, and passes through electric capacity C8 ground connection, inductance between inductance L3 and electric capacity C7
L3 passes through electric capacity C9 ground connection as the other end of outfan.
Supply voltage Vc1 and Vc2 uses two independent current sources, if both voltage is identical, it is also possible to share same electricity
Source.
First port of high-frequency triode Q1 and Q2 is base stage, and the second port is colelctor electrode, and the 3rd port is emitter stage.
Whole circuit additional lastblock metallic shield, reduces external electromagnetic interference greatly.
The present invention includes tuning circuit 1, powered by direct current circuit 2, oscillating circuit 3, buffer circuit 4, filter circuit 5.
In the present invention, tuning circuit 1 is by the equivalent capacity of external world's input change voltage-regulation varactor, selects to close
Suitable varactor, can optimize regulation sensitivity and the range of accommodation of circuit.Inductance in tuning circuit 1 and transfiguration two pole
Properly choosing of pipe, it is possible to optimize the flatness of circuit output.
In the present invention, in tuning circuit 1, inductance produces vibration with varactor to characteristic frequency, by feeding back to vibration
Circuit 3 medium-high frequency audion is amplified, thus forms oscillation source.By the setting rational in infrastructure of oscillating circuit 3, can improve
The circuit stability to variations in temperature.
Buffer circuit 4 in the present invention, by reasonably arranging the duty of high-frequency triode, by emitter follower, passes through
Impedance transformation, promotes the carrying load ability of circuit, also has the effect of isolation simultaneously, reduces subsequent conditioning circuit and does oscillating circuit
Disturb.
The LC filter circuit form that in the present invention, filter circuit 5 uses, chooses suitable capacitor and inductor value, can be effective
Filter harmonic wave, it is provided that the preferably purity of frequency spectrum.
In the present invention, tuning circuit, oscillating circuit, buffer circuit are sequentially connected with filter circuit.
The present invention chooses in powered by direct current circuit 2 suitable inductance capacitance value, can effectively avoid radiofrequency signal
Enter supply line, be also greatly reduced the loss of radio-frequency power.
Claims (4)
1. the 400-500MHz High Efficiency Solid-State microwave source of a low noise sound pitch output, it is characterised in that: include being connected with each other successively
Tuning circuit, oscillating circuit, buffer circuit, filter circuit, and supply power to oscillating circuit and buffer circuit unidirectional current supply
Electricity circuit, wherein:
Described tuning circuit includes VT Vtune, two inductance L1 and L0, diode D1, three electric capacity C1, C2 and C3,
Described inductance L1 one end and diode D1 anode ground connection altogether, after the inductance L1 other end and diode D1 negative electrode connect altogether, then with electricity
Sense L0 one end is connected to electric capacity C1 one end altogether, and the electric capacity C1 other end is connected to oscillating circuit, and VT Vtune is connected to inductance L0
Respectively by electric capacity C2, electric capacity C3 ground connection between the other end, and VT Vtune and inductance L0；
Described powered by direct current circuit includes supply voltage Vc1, inductance L2, electric capacity C4, electric capacity C5, and described supply voltage Vc1 is even
Being connected to inductance L2 one end, the inductance L2 other end is connected to oscillating circuit, passes through electric capacity between supply voltage Vc1 and inductance L2 respectively
C4, electric capacity C5 ground connection；
Described oscillating circuit includes high-frequency triode Q1, and resistance R1, R2 and R3, first port of high-frequency triode Q1 and tune
In humorous circuit, the electric capacity C1 other end connects, and first port of high-frequency triode Q1 is the most respectively by resistance R2 ground connection, and unidirectional current supplies
In electricity circuit, the inductance L2 other end is connected by first port of resistance R1 and high-frequency triode Q1, electricity in powered by direct current circuit
The sense L2 other end is connected also by second port of resistance R3 and high-frequency triode Q1, and second port of high-frequency triode Q1 also connects
It is connected to buffer circuit, the 3rd port ground connection of high-frequency triode Q1；
Described buffer circuit includes supply voltage Vc2, high-frequency triode Q2, resistance R4 and R5, electric capacity C6 and C7, described high frequency three
First port of pole pipe Q2 is connected by second port of electric capacity C6 and oscillating circuit medium-high frequency audion Q1, high-frequency triode Q2
The first port be connected with supply voltage Vc2 also by resistance R4, second port of high-frequency triode Q2 and supply voltage Vc2 are even
Connecing, second port of high-frequency triode Q2 is connected to filter circuit also by electric capacity C7, and the 3rd port of high-frequency triode Q2 leads to
Cross resistance R5 ground connection；
Described filter circuit includes inductance L3, electric capacity C8 and C9, inductance L3 one end and buffer circuit medium-high frequency audion Q2 second
On port, electric capacity C7 connects, and the inductance L3 other end is as outfan, and passes through electric capacity C8 ground connection, electricity between inductance L3 and electric capacity C7
Sense L3 passes through electric capacity C9 ground connection as the other end of outfan.
The 400-500MHz High Efficiency Solid-State microwave source of a kind of low noise sound pitch the most according to claim 1 output, its feature exists
In: supply voltage Vc1 and Vc2 uses two independent current sources, if both voltage is identical, it is also possible to share same power supply.
The 400-500MHz High Efficiency Solid-State microwave source of a kind of low noise sound pitch the most according to claim 1 output, its feature exists
In: first port of high-frequency triode Q1 and Q2 is base stage, and the second port is colelctor electrode, and the 3rd port is emitter stage.
The 400-500MHz High Efficiency Solid-State microwave source of a kind of low noise sound pitch the most according to claim 1 output, its feature exists
In: whole circuit additional lastblock metallic shield, reduce external electromagnetic interference greatly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980773.5A CN105991113A (en) | 2015-12-22 | 2015-12-22 | Low-noise high-output 400-500MHz high-efficiency solid microwave source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980773.5A CN105991113A (en) | 2015-12-22 | 2015-12-22 | Low-noise high-output 400-500MHz high-efficiency solid microwave source |
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| Publication Number | Publication Date |
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| CN105991113A true CN105991113A (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510980773.5A Pending CN105991113A (en) | 2015-12-22 | 2015-12-22 | Low-noise high-output 400-500MHz high-efficiency solid microwave source |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB752904A (en) * | 1953-02-20 | 1956-07-18 | Philips Electrical Ind Ltd | Improvements in or relating to devices for measuring electric power |
| CN1777243A (en) * | 2005-12-02 | 2006-05-24 | 邓明友 | Audio-video wireless emitting device |
| CN2919696Y (en) * | 2006-06-06 | 2007-07-04 | 李蓉梅 | Radio with interphone |
| CN103501175A (en) * | 2013-10-24 | 2014-01-08 | 清华大学 | Millimeter-wave phase-locked loop |
| CN203968108U (en) * | 2014-06-12 | 2014-11-26 | 单家芳 | Be applicable to the Voltage-Controlled oscillation circuit lower than 1GHz |
| CN204304928U (en) * | 2015-01-16 | 2015-04-29 | 郑州职业技术学院 | A kind of voltage-controlled oscillator circuit |
-
2015
- 2015-12-22 CN CN201510980773.5A patent/CN105991113A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB752904A (en) * | 1953-02-20 | 1956-07-18 | Philips Electrical Ind Ltd | Improvements in or relating to devices for measuring electric power |
| CN1777243A (en) * | 2005-12-02 | 2006-05-24 | 邓明友 | Audio-video wireless emitting device |
| CN2919696Y (en) * | 2006-06-06 | 2007-07-04 | 李蓉梅 | Radio with interphone |
| CN103501175A (en) * | 2013-10-24 | 2014-01-08 | 清华大学 | Millimeter-wave phase-locked loop |
| CN203968108U (en) * | 2014-06-12 | 2014-11-26 | 单家芳 | Be applicable to the Voltage-Controlled oscillation circuit lower than 1GHz |
| CN204304928U (en) * | 2015-01-16 | 2015-04-29 | 郑州职业技术学院 | A kind of voltage-controlled oscillator circuit |
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Application publication date: 20161005 |