CN201878129U - Microwave frequency band low-phase noise locking phase medium oscillator - Google Patents
Microwave frequency band low-phase noise locking phase medium oscillator Download PDFInfo
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- CN201878129U CN201878129U CN2010206214675U CN201020621467U CN201878129U CN 201878129 U CN201878129 U CN 201878129U CN 2010206214675 U CN2010206214675 U CN 2010206214675U CN 201020621467 U CN201020621467 U CN 201020621467U CN 201878129 U CN201878129 U CN 201878129U
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Abstract
Disclosed is a microwave frequency band low-phase noise locking phase medium oscillator. A reference source is connected to an input end of a sampling phase discriminator through higher harmonics of reference frequency generated from a pulse generator, a medium voltage-controlled oscillator is connected with a power coupler and outputs required operating frequency through the power coupler, frequency output from the medium voltage-controlled oscillator is directly connected to another input end of the sampling phase discriminator after being coupled by the power coupler, phases of two input signals are compared to each other by the sampling phase discriminator, error signals vary with the phase difference of the two signals are then output by the sampling phase discriminator, error voltage is applied to the pulse generator of the medium voltage-controlled oscillator by a loop filter to form a sampling phase locking loop so as to realize stable frequency, and required microwave operating frequency is output by the medium voltage-controlled oscillator directly. Near-end phase noise of the oscillator can be reduced obviously, and accordingly the oscillator has the advantages of low-phase noise, high spectrum purity and high frequency stability.
Description
Technical field
The utility model is mainly used in frequency synthesis and the microwave generating source, relates to the low phase lock dielectric oscillator of making an uproar mutually of a kind of microwave frequency band.
Background technology
Microwave oscillator as local vibration source in microwave equipment is one of core component crucial in the system.Along with the development of technology such as communication, Digital Television, satellite fix, Aero-Space, radar and electronic countermeasures, microwave system is more and more higher to the requirement of all kinds of information sources.And the phase noise index is particularly important in the parameters of microwave oscillator, and the phase noise of oscillator has determined the receiving sensitivity of whole system.Therefore reduce the phase noise of oscillator, the spectral purity and the frequency stability that improve oscillator are still this field important research project at present.
At present, along with the development of device level, the sampling Phase Lock Technique has been tending towards maturing, and this makes the low phase noise performance based on the microwave frequency source of sampling Phase Lock Technique obtain embodying completely.But the phase lock dielectric oscillation source of existing high band generally all is the technical scheme that gets on by phase-locked mixing again of low frequency or frequency multiplication, because needing frequency multiplication or mixing, amplification, filtering, it must adopt more active device, thereby produced bigger additional noise, phase noise to microwave generating source has bigger influence, can not embody the phase-locked superiority of taking a sample on index.
Summary of the invention
In order to remedy existing in prior technology phase noise height, additional noise is many, the deficiency that spectral purity is low, the utility model provides a kind of microwave frequency band the low phase lock dielectric oscillator of making an uproar mutually, it is a kind of Microwave Sampling phase lock dielectric oscillator, it adopts high frequency sampling phase demodulation to produce the phase error voltage signal and removes the control medium voltage controlled oscillator, thereby the realization frequency stabilization, just because of being that direct sample is phase-locked on microwave frequency, so it does not need once more frequency multiplication or mixing, in addition, it can also improve the near-end phase noise of oscillator significantly, is a kind of low phase noise that has, the microwave dielectric oscillator of high spectrum purity and high frequency stability characteristics.
In order to achieve the above object, the utility model adopts following concrete technical scheme: the low phase lock dielectric oscillator of making an uproar mutually of a kind of microwave frequency band, it mainly is by dielectric voltage controlled oscillator, power coupler, Sampling Phase Discriminator, loop filter, pulse generator, reference source is formed, it is characterized in that, reference source is connected to an input of Sampling Phase Discriminator by the high order harmonic component of pulse generator generation reference frequency, dielectric voltage controlled oscillator is connected with power coupler, dielectric voltage controlled oscillator is by the required operating frequency of power coupler output, the frequency of dielectric voltage controlled oscillator output is directly connected to another input of Sampling Phase Discriminator after the power coupler coupling, Sampling Phase Discriminator is two phase of input signals relatively, and the error signal that output is directly proportional with two signal phase differences, through loop filter the pulse generator that error voltage is added to dielectric voltage controlled oscillator is constituted the sampled phase-locked loop road to realize frequency stabilization, dielectric voltage controlled oscillator is directly exported required microwave operational frequencies.
Wherein, described dielectric voltage controlled oscillator is made up of voltage controlled oscillator, coupler and isolator, and dielectric voltage controlled oscillator is provided with tuning screw, reference source input port, power delivery outlet.
The output of reference source is by pulse generator and produce the high order harmonic component of reference frequency, high order harmonic component is carried out bit comparison mutually and is produced phase error voltage with the radiofrequency signal of dielectric voltage controlled oscillator output, error voltage amplifies through active low-pass loop filter filtering, and the variable capacitance diode that is added to dielectric voltage controlled oscillator at last carries out voltage-controlled.
The utility model can improve the near-end phase noise of oscillator significantly, and it has the characteristics of low phase noise, high spectrum purity and high frequency stability.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 the utility model syndeton block diagram;
Fig. 2 the utility model is implemented circuit diagram;
Fig. 3 box body contour structures of the present utility model schematic diagram;
Fig. 4 box body internal structure of the present utility model schematic diagram.
Embodiment
As Fig. 1, shown in Figure 2, the low phase lock dielectric oscillator of making an uproar mutually of a kind of microwave frequency band, it mainly is by dielectric voltage controlled oscillator 1, power coupler 2, Sampling Phase Discriminator 3, loop filter 4, pulse generator 5, reference source 6 is formed, the high order harmonic component that reference source 6 produces reference frequency by pulse generator 5 is connected to an input of Sampling Phase Discriminator 3, dielectric voltage controlled oscillator 1 is connected with power coupler 2, dielectric voltage controlled oscillator 1 is by the required operating frequency of power coupler 2 outputs, the frequency of dielectric voltage controlled oscillator 1 output is directly connected to another input of Sampling Phase Discriminator 3 after power coupler 2 couplings, Sampling Phase Discriminator 3 is two phase of input signals relatively, and the error signal that output is directly proportional with two signal phase differences, through loop filter 4 pulse generator 5 that error voltage is added to dielectric voltage controlled oscillator 1 is constituted the sampled phase-locked loop road to realize frequency stabilization, dielectric voltage controlled oscillator 1 is directly exported required microwave operational frequencies.
Wherein, described dielectric voltage controlled oscillator 1 is made up of voltage controlled oscillator 11, coupler 12 and isolator 13, and as shown in Figure 3, dielectric voltage controlled oscillator 1 box body is provided with tuning screw 31, reference source input port 32, power delivery outlet 33.As shown in Figure 4, be provided with voltage-controlled dielectric oscillator part 41 and the phase-locked part 42 of sampling in dielectric voltage controlled oscillator 1 box body.
Claims (4)
1. a microwave frequency band hangs down the phase lock dielectric oscillator of making an uproar mutually, it mainly is by dielectric voltage controlled oscillator (1), power coupler (2), Sampling Phase Discriminator (3), loop filter (4), pulse generator (5), reference source (6) is formed, it is characterized in that, reference source (6) is connected to an input of Sampling Phase Discriminator (3) by the high order harmonic component of pulse generator (5) generation reference frequency, dielectric voltage controlled oscillator (1) is connected with power coupler (2), dielectric voltage controlled oscillator (1) is by the required operating frequency of power coupler (2) output, the frequency of dielectric voltage controlled oscillator (1) output is directly connected to another input of Sampling Phase Discriminator (3) after power coupler (2) coupling, Sampling Phase Discriminator (3) is two phase of input signals relatively, and the error signal that output is directly proportional with two signal phase differences, through loop filter (4) pulse generator (5) that error voltage is added to dielectric voltage controlled oscillator (1) is constituted the sampled phase-locked loop road to realize frequency stabilization, dielectric voltage controlled oscillator (1) is directly exported required microwave operational frequencies.
2. the low phase lock dielectric oscillator of making an uproar mutually of a kind of microwave frequency band according to claim 1 is characterized in that described dielectric voltage controlled oscillator (1) is made up of voltage controlled oscillator (11), coupler (12) and isolator (13).
3. the low phase lock dielectric oscillator of making an uproar mutually of a kind of microwave frequency band according to claim 1 is characterized in that described dielectric voltage controlled oscillator (1) box body is provided with tuning screw (31), reference source input port (32), power delivery outlet (33).
4. the low phase lock dielectric oscillator of making an uproar mutually of a kind of microwave frequency band according to claim 1 is characterized in that, is provided with voltage-controlled dielectric oscillator part (41) and sampling phase-locked part (42) in described dielectric voltage controlled oscillator (1) box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206214675U CN201878129U (en) | 2010-11-24 | 2010-11-24 | Microwave frequency band low-phase noise locking phase medium oscillator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206214675U CN201878129U (en) | 2010-11-24 | 2010-11-24 | Microwave frequency band low-phase noise locking phase medium oscillator |
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| CN201878129U true CN201878129U (en) | 2011-06-22 |
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| CN2010206214675U Expired - Fee Related CN201878129U (en) | 2010-11-24 | 2010-11-24 | Microwave frequency band low-phase noise locking phase medium oscillator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163970A (en) * | 2011-01-25 | 2011-08-24 | 吴惠彬 | Phase-locked dielectric resonator oscillator with low phase noise at microwave frequency band |
| CN103595406A (en) * | 2013-10-24 | 2014-02-19 | 中国电子科技集团公司第四十一研究所 | Broadband microwave signal low-phase noise synthesizing device and method |
| CN105356896A (en) * | 2015-09-29 | 2016-02-24 | 西安空间无线电技术研究所 | Multi-frequency switching system and method for miniature Ka double-frequency transmitter |
| CN109537183A (en) * | 2018-11-20 | 2019-03-29 | 浙江众邦机电科技有限公司 | A kind of presser feet control method of sewing machine, device, medium and equipment |
-
2010
- 2010-11-24 CN CN2010206214675U patent/CN201878129U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163970A (en) * | 2011-01-25 | 2011-08-24 | 吴惠彬 | Phase-locked dielectric resonator oscillator with low phase noise at microwave frequency band |
| CN103595406A (en) * | 2013-10-24 | 2014-02-19 | 中国电子科技集团公司第四十一研究所 | Broadband microwave signal low-phase noise synthesizing device and method |
| CN103595406B (en) * | 2013-10-24 | 2016-04-27 | 中国电子科技集团公司第四十一研究所 | A kind of device and method of wide-band microwave signal low phase noise synthesis |
| CN105356896A (en) * | 2015-09-29 | 2016-02-24 | 西安空间无线电技术研究所 | Multi-frequency switching system and method for miniature Ka double-frequency transmitter |
| CN105356896B (en) * | 2015-09-29 | 2018-02-09 | 西安空间无线电技术研究所 | A kind of multifrequency switching system and method for being used to minimize Ka double frequency emitters |
| CN109537183A (en) * | 2018-11-20 | 2019-03-29 | 浙江众邦机电科技有限公司 | A kind of presser feet control method of sewing machine, device, medium and equipment |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20111124 |