CN203722605U - Integrated ultra wide band voltage-controlled oscillator - Google Patents
Integrated ultra wide band voltage-controlled oscillator Download PDFInfo
- Publication number
- CN203722605U CN203722605U CN201320481659.4U CN201320481659U CN203722605U CN 203722605 U CN203722605 U CN 203722605U CN 201320481659 U CN201320481659 U CN 201320481659U CN 203722605 U CN203722605 U CN 203722605U
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- circuit
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- voltage
- input
- controlled oscillator
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- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
The utility model provides an integrated ultra wide band voltage-controlled oscillator which comprises a voltage-controlled oscillation circuit, a coarse tuning circuit, a fine tuning circuit, a power dividing circuit, an attenuation circuit, a filter circuit and an amplification circuit. Output terminals of the coarse tuning circuit and the fine tuning circuit are connected with an input terminal of the voltage-controlled oscillation circuit. An output terminal of the voltage-controlled oscillation circuit is connected with an input terminal of the power dividing circuit. An output terminal of the power dividing circuit is connected with an input terminal of a mixer circuit through the attenuation circuit. An output terminal of the mixer circuit is connected with an input terminal of the filter circuit. An input terminal of the filter circuit is connected with an input terminal of the amplification circuit. Another output terminal of the power dividing circuit is connected with a second attenuation circuit. The input terminal of the mixer circuit is connected with a fixed frequency oscillator circuit also. The oscillator of the utility model improves carrying capacity of a voltage-controlled oscillator and isolation between the main output and the secondary output. The peripheral circuit is simpler when the oscillator is in use, frequency signals controlled by voltage from scores of KHz to hundreds of MHz can be generated simultaneously. Thus the ultra wide band voltage-controlled oscillation is obtained.
Description
Technical field
The utility model belongs to field of oscillators, especially relates to a kind of integrated ultra broadband voltage controlled oscillator.
Background technology
Along with developing rapidly of modern microwave communication, satellite communication, electronic countermeasures, Microwave Measurement Technique, the performance of complete machine, volume, reliability etc. are had higher requirement, voltage controlled oscillator is its very important parts, its effect is that direct current power is converted to radio-frequency power, be mainly used in various phase-locked loop circuits, as the local oscillations source of microwave transmitting and receiving equipment, the CF signal source of various modulators and the basic derived signal in microwave measuring equipment etc.
In phase-locked modulating system, to voltage controlled oscillator, both required wide electricity to adjust bandwidth, there is again extremely low electricity to adjust sensitivity and good linearity of tuning degree, the frequency coverage of the electric pressure regulation controlled oscillator of common list can only reach an octave, and the limitation because the variable capacitance diode of voltage controlled oscillator inside, electric capacity and inductance change, can not realize ultra broadband VCO.When the voltage controlled oscillator of single channel output is used for phase-locked loop, also need to design in addition merit parallel circuit, to produce two-way output signal, one tunnel enters phase discriminator, and a road output, for improving the isolation of two-way, reduce the impact of load on loop, also need to design attenuator circuit, amplifying circuit.For ease of using, reduce the volume of phase-locked modulating system, improve modulator performance, need to improve the integrated level of voltage controlled oscillator, realize double tunning and doubleway output.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of integrated ultra broadband voltage controlled oscillator, solves prior art medium frequency coverage octave little, and phase-locked modulating system is used complicated problem.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of integrated ultra broadband voltage controlled oscillator, comprise Voltage-Controlled oscillation circuit, coarse adjustment circuit, fine tuning circuit, merit parallel circuit, the first attenuator circuit, the second attenuator circuit, filter circuit and amplifying circuit, it is characterized in that: described coarse adjustment circuit is connected the input of described Voltage-Controlled oscillation circuit with the output of described fine tuning circuit, the output of described Voltage-Controlled oscillation circuit connects the input of described merit parallel circuit, an output of described merit parallel circuit connects the input of described mixting circuit by described the first attenuator circuit, the output of described mixting circuit connects the input of described filter circuit, the input of described filter circuit connects the input of described amplifying circuit, another output of described merit parallel circuit connects described the second attenuator circuit, on the input of described mixting circuit, be also connected with and determine frequency oscillator circuit.
Further, described mixting circuit is frequency mixer.
Further, described filter circuit is low pass filter.
Further, described amplifying circuit is compensation isolated amplifier.
Further, described coarse adjustment circuit and described fine tuning circuit adopt identical circuit structure.
The utility model employing coarse adjustment circuit and fine tuning circuit are tuning respectively in the different piece of Voltage-Controlled oscillation circuit, and its fine tuning sensitivity is lower, and linearity of tuning degree is good, and coarse adjustment sensitivity is higher, and the tuning complementary impact of two-way, is convenient to realize the Linear Tuning in broadband; Integrated merit parallel circuit, attenuator circuit, amplifying circuit, not only heightened the carrying load ability of oscillator, and improved the isolation between the output of major and minor road, and the peripheral circuit while making to apply is simpler, has greatly reduced the volume of circuit; Integrated mixting circuit, filter circuit and amplifying circuit and determine frequency oscillator circuit in main road output, can produce tens KHz to hundreds of MHz can voltage controlled frequency signal, can expand the octave of former voltage controlled oscillator to several ten thousand times, realize ultra broadband VCO.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model;
Fig. 2 is the circuit diagram of the utility model main road output.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of integrated ultra broadband voltage controlled oscillator, comprise Voltage-Controlled oscillation circuit, coarse adjustment circuit, fine tuning circuit, merit parallel circuit, the first attenuator circuit, the second attenuator circuit, filter circuit and amplifying circuit, coarse adjustment circuit is connected the input of Voltage-Controlled oscillation circuit with the output of fine tuning circuit, the output of Voltage-Controlled oscillation circuit connects the input of merit parallel circuit, an output of merit parallel circuit connects the input of mixting circuit by the first attenuator circuit, the output of mixting circuit connects the input of filter circuit, the input of filter circuit connects the input of amplifying circuit, another output of merit parallel circuit connects the second attenuator circuit, on the input of mixting circuit, be also connected with and determine frequency oscillator circuit.
As shown in Figure 2, it is the circuit diagram of the utility model main road output, and wherein mixting circuit is frequency mixer, and filter circuit is low pass filter, and amplifying circuit is compensation isolated amplifier.The specified output frequency division of voltage controlled oscillator main road is as follows, the integer part F of low-limit frequency
0represent the fractional part F of low-limit frequency
offsetrepresent, the difference of highest frequency and low-limit frequency represents with Δ F, and its specified highest frequency can be expressed as F
0+ F
offset+ Δ F, so the specified reference frequency output of voltage controlled oscillator main road can be expressed as (F
0+ F
offset)～(F0+F
offset+ Δ F), F wherein
offsetits value is more approaching zero, and the octave of the voltage controlled oscillator main road of this utility model circuit is just higher.Determine frequency oscillator circuit and be used for producing a fixing frequency F
0, the output signal of the output signal of voltage controlled oscillator and frequency setting circuit is sent into frequency mixer simultaneously, the output signal after frequency mixer mixing is difference frequency signal (F
offset～F
offset+ Δ F) with sum of fundamental frequencies signal (2F
0+ F
offset～2F
0+ F
offset+ Δ F).This signal by low pass filter by high-frequency signal filtering, remaining difference frequency signal input offset isolated amplifier, the effect of this compensation isolated amplifier is that useful signal is carried out to power back-off, plays certain buffer action simultaneously.The frequency of the final output signal of this utility model main road is F
offset～F
offset+ Δ F.
The utility model adopts film mixing integrated technology, circuit is all integrated among the circuit encapsulating with hermetically sealed Can, this encapsulated circuit has two tuning ends and two outputs, and the resistance in circuit and inductance element are all integrated on circuit substrate, all the other elements adopt chip component, have greatly reduced the volume of circuit.
The utility model employing coarse adjustment circuit and fine tuning circuit are tuning respectively in the different piece of Voltage-Controlled oscillation circuit, and its fine tuning sensitivity is lower, and linearity of tuning degree is good, and coarse adjustment sensitivity is higher, and the tuning complementary impact of two-way, is convenient to realize the Linear Tuning in broadband; Integrated merit parallel circuit, attenuator circuit, amplifying circuit, not only heightened the carrying load ability of oscillator, and improved the isolation between the output of major and minor road, and the peripheral circuit while making to apply is simpler, has greatly reduced the volume of circuit; Integrated mixting circuit, filter circuit and amplifying circuit and determine frequency oscillator circuit in main road output, can produce tens KHz to hundreds of MHz can voltage controlled frequency signal, can expand the octave of former voltage controlled oscillator to several ten thousand times, realize ultra broadband VCO.
Above embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (5)
1. an integrated ultra broadband voltage controlled oscillator, comprise Voltage-Controlled oscillation circuit, coarse adjustment circuit, fine tuning circuit, merit parallel circuit, the first attenuator circuit, the second attenuator circuit, filter circuit and amplifying circuit, it is characterized in that: described coarse adjustment circuit is connected the input of described Voltage-Controlled oscillation circuit with the output of described fine tuning circuit, the output of described Voltage-Controlled oscillation circuit connects the input of described merit parallel circuit, an output of described merit parallel circuit connects the input of described mixting circuit by described the first attenuator circuit, the output of described mixting circuit connects the input of described filter circuit, the input of described filter circuit connects the input of described amplifying circuit, another output of described merit parallel circuit connects described the second attenuator circuit, on the input of described mixting circuit, be also connected with and determine frequency oscillator circuit.
2. integrated ultra broadband voltage controlled oscillator according to claim 1, is characterized in that: described mixting circuit is frequency mixer.
3. integrated ultra broadband voltage controlled oscillator according to claim 2, is characterized in that: described filter circuit is low pass filter.
4. according to the described integrated ultra broadband voltage controlled oscillator of claim 1, it is characterized in that: described amplifying circuit is compensation isolated amplifier.
5. according to the integrated ultra broadband voltage controlled oscillator described in any one of claim 1, it is characterized in that: described coarse adjustment circuit and described fine tuning circuit adopt identical circuit structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320481659.4U CN203722605U (en) | 2013-08-07 | 2013-08-07 | Integrated ultra wide band voltage-controlled oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320481659.4U CN203722605U (en) | 2013-08-07 | 2013-08-07 | Integrated ultra wide band voltage-controlled oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203722605U true CN203722605U (en) | 2014-07-16 |
Family
ID=51161724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320481659.4U Expired - Fee Related CN203722605U (en) | 2013-08-07 | 2013-08-07 | Integrated ultra wide band voltage-controlled oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203722605U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682873A (en) * | 2013-11-27 | 2015-06-03 | 中国航天科工集团第三研究院第八三五七研究所 | Ultra-wide-octave voltage controlled oscillator (VCO) |
| CN107942296A (en) * | 2017-11-29 | 2018-04-20 | 北方通用电子集团有限公司 | A kind of ultra wide band swept-frequency signal generating means |
-
2013
- 2013-08-07 CN CN201320481659.4U patent/CN203722605U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682873A (en) * | 2013-11-27 | 2015-06-03 | 中国航天科工集团第三研究院第八三五七研究所 | Ultra-wide-octave voltage controlled oscillator (VCO) |
| CN107942296A (en) * | 2017-11-29 | 2018-04-20 | 北方通用电子集团有限公司 | A kind of ultra wide band swept-frequency signal generating means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20160807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |