CN108055035A - A kind of wideband frequency expanding unit of optical-electronic oscillator - Google Patents
A kind of wideband frequency expanding unit of optical-electronic oscillator Download PDFInfo
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- CN108055035A CN108055035A CN201711435135.0A CN201711435135A CN108055035A CN 108055035 A CN108055035 A CN 108055035A CN 201711435135 A CN201711435135 A CN 201711435135A CN 108055035 A CN108055035 A CN 108055035A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000005070 sampling Methods 0.000 claims description 19
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000003786 synthesis reaction Methods 0.000 abstract description 4
- 125000003367 polycyclic group Chemical group 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000005622 photoelectricity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
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- 230000003287 optical effect Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S1/00—Masers, i.e. devices using stimulated emission of electromagnetic radiation in the microwave range
- H01S1/02—Masers, i.e. devices using stimulated emission of electromagnetic radiation in the microwave range solid
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
- H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
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- Optics & Photonics (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
The present invention discloses a kind of wideband frequency expanding unit of optical-electronic oscillator, including：Narrowband optical-electronic oscillator, frequency divider, the first phaselocked loop, the second phaselocked loop, wherein, input terminal of the narrowband optical-electronic oscillator respectively with frequency divider, the first phaselocked loop is connected；Output terminal of the input terminal of second phaselocked loop respectively with the first phaselocked loop, frequency divider is connected；The signal of narrowband optical-electronic oscillator output after the first phaselocked loop, the second phaselocked loop frequency conversion respectively by exporting.The reference source phase noise that the present invention solves legacy frequencies synthesis can not meet volume biography requirement；It by polycyclic frequency expansion technology, solves that the output frequency of optical-electronic oscillator is narrow, the calibration requirements in broadband can not be met.
Description
Technical field
The present invention relates to photoelectric fields.More particularly, to a kind of wideband frequency expanding unit of optical-electronic oscillator.
Background technology
In microwave and millimeter wave frequency range, low phase noise reference source currently on the market mainly includes what is introduced
HP8663A/B, E8257D and SMA/B series etc., the compositions of these reference sources mainly including low noise when base link, harmonic wave
Generator, baseband signal, intermediate frequency unit, upconverting unit, down-converter unit and display ＆ control system.These microwave and millimeter waves refer to
Source is using legacy frequencies synthetic schemes, and most significant shortcoming is exactly the raising with output frequency, phase noise level
It declines to a great extent.And with the promotion of microwave and millimeter wave source phase noise Development Level to be measured, the phase of microwave and millimeter wave reference source
The amount that position noise level can not meet 10dB passes requirement, can only carry out school to the phase noise in source to be measured by way of comparison
Standard, this results in the phase noise in microwave and millimeter wave source that can not trace to the source.Since optical cavity is much better than the quality factor of traditional microwave chamber,
The phase noise of optical-electronic oscillator (OEO) is very superior, and its most significant advantage is exactly to export the phase noise of signal not
Deterioration is generated with the raising of frequency.Although the phase noise of optical-electronic oscillator is very superior, it is maximum the shortcomings that be exactly
Output frequency is narrowband, can not meet the measurement request in broadband.
The reference source problem in country's microwave and millimeter wave frequency range is at present：1st, the reference source phase of legacy frequencies synthesis
Noise can not meet volume biography requirement；2nd, the output frequency of optical-electronic oscillator is narrow, can not meet the calibration requirements in broadband.
Accordingly, it is desirable to provide a kind of wideband frequency expanding unit of optical-electronic oscillator.
The content of the invention
It is an object of the invention to provide a kind of wideband frequency expanding units of optical-electronic oscillator, are particularly suitable for application as micro-
Phase noise calibration reference source in the range of ripple millimeter-wave frequency uses, and can solve microwave current Millimeter-Wave Source in phase noise
In calibration process, reference source is difficult to the problem of selection.
In order to achieve the above objectives, the present invention uses following technical proposals：
A kind of wideband frequency expanding unit of optical-electronic oscillator, including：Narrowband optical-electronic oscillator, frequency divider, the first lock phase
Ring, the second phaselocked loop, wherein,
Input terminal of the narrowband optical-electronic oscillator respectively with frequency divider, the first phaselocked loop is connected；
Output terminal of the input terminal of second phaselocked loop respectively with the first phaselocked loop, frequency divider is connected；
The signal of narrowband optical-electronic oscillator output after the first phaselocked loop, the second phaselocked loop frequency conversion respectively by exporting.
Further, the first phaselocked loop includes：First frequency mixer, the first phase discriminator, the first loop filter, described first
The input terminal of phase discriminator is connected with the first frequency mixer, and output terminal is connected with the input terminal of the first loop filter.
Further, the first phaselocked loop further includes power divider, input terminal and the narrowband photoelectricity of the power divider
Oscillator connects, and output terminal is connected with the first frequency mixer.
Further, the first phaselocked loop further includes the Direct Digital Synthesizer for reducing signal frequency, described direct
The input terminal of digital frequency synthesizer is connected with power divider, and output terminal is connected with the first phase discriminator.
Further, the first phaselocked loop further includes the voltage controlled oscillator of extension signal frequency range, the voltage controlled oscillator
Input terminal be connected with the output terminal of the first loop filter, output terminal is connected with the second phaselocked loop.
Further, the second phaselocked loop includes：Second frequency mixer, the second phase discriminator, the second loop filter, described second
The input terminal of phase discriminator is connected with the second frequency mixer, and output terminal is connected with the second loop filter input terminal.
Further, the second phaselocked loop further includes the sampling medium oscillator of extension signal frequency bandwidth, and the sampling is situated between
The input terminal of matter oscillator is connected with the second loop filter output terminal, the signal after reference frequency output extension.
Further, device is further included by three-mixer, the 3rd phase discriminator, tricyclic path filter, YIG oscillator structure
Into the 3rd phaselocked loop, the sampling medium oscillator is connected with the input terminal of three-mixer, and the second phase-locked loop frequency is expanded
Signal after exhibition is sent to three-mixer.
Further, the output terminal of frequency divider is connected respectively with the second phase discriminator, the 3rd phase discriminator connects, respectively by narrowband
The signal of optical-electronic oscillator output carries out phase bit comparison with the signal that corresponding second frequency mixer, three-mixer export.
Further, the 3rd phaselocked loop further includes frequency dividing frequency multiplier, and the YIG oscillator output terminal connects with frequency dividing frequency multiplier
It connects, is exported after being extended to signal frequency.
Beneficial effects of the present invention are as follows：
A kind of wideband frequency expanding unit of viewpoint oscillator described in technical solution of the present invention solves microwave current
For Millimeter-Wave Source in phase noise calibration process, reference source is difficult to the problem of selection, has the following advantages：1st, solves tradition
The reference source phase noise of frequency synthesis can not meet volume biography requirement；2nd, by polycyclic frequency expansion technology, solve photoelectricity and shake
It swings that the output frequency of device is narrow, the calibration requirements in broadband can not be met.
Description of the drawings
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings；
Fig. 1 is the wideband frequency expanding unit schematic diagram of optical-electronic oscillator of the present invention.
Specific embodiment
In order to illustrate more clearly of the present invention, the present invention is done further with reference to preferred embodiments and drawings
It is bright.Similar component is indicated with identical reference numeral in attached drawing.It will be appreciated by those skilled in the art that institute is specific below
The content of description is illustrative and be not restrictive, and should not be limited the scope of the invention with this.
As shown in Figure 1, a kind of wideband frequency expanding unit of optical-electronic oscillator disclosed by the invention, including：Narrowband photoelectricity
Oscillator 1, frequency divider 2, the first phaselocked loop 11, the second phaselocked loop 22, wherein,
Input terminal of the narrowband optical-electronic oscillator 1 respectively with frequency divider 2, the first phaselocked loop 11 is connected；
Output terminal of the input terminal of second phaselocked loop 22 respectively with the first phaselocked loop 11, frequency divider 2 is connected；
The signal that narrowband optical-electronic oscillator 1 exports exports after locking 22 phase ring frequency conversions by the first phaselocked loop 11, second respectively.
Wherein, the first phaselocked loop 11 includes：First frequency mixer 4, the first phase discriminator 6, the first loop filter 7, described
The input terminal of one phase discriminator 6 is connected with the first frequency mixer 4, and output terminal is connected with the input terminal of the first loop filter 7.First lock
Phase ring 11 further includes power divider 3, Direct Digital Synthesizer (DDS) 5, voltage controlled oscillator 8, the power divider
3 input terminal is connected with narrowband optical-electronic oscillator 1, and output terminal is connected with the first frequency mixer 4；The direct digital frequency synthesier
The input terminal of device 5 is connected with power divider 3, and output terminal is connected with the first phase discriminator 6；The input terminal of the voltage controlled oscillator 8
It is connected with the output terminal of the first loop filter 7, output terminal is connected with the second phaselocked loop 22.
During work, the output signal of narrowband optical-electronic oscillator 1 is after power divider 3, all the way by being mixed with first
Device 4 realizes fundamental wave mixing down coversion, the subdivision that the intermediate-freuqncy signal obtained after down coversion is generated with Direct Digital Synthesizer 5
Distinguish that frequency signal carries out phase demodulation by the first phase discriminator 6, the clock of Direct Digital Synthesizer 5 is by narrowband optoelectronic oscillation
Another way after device 1 work(point provides, after the error signal after phase demodulation is integrated by the first loop filter 7, feedback control
Voltage controlled oscillator 8 processed, after loop-locking, optical-electronic oscillator 1 signal in narrowband has been locked at voltage controlled oscillator 8, and loop bandwidth is set
It puts and wants width, bandwidth is near 1MHz, in this way, the phase noise characteristic of the first phaselocked loop 11 output signal, within frequency deviation 1MHz,
Keep the Low phase noise characteristic of 1 signal of narrowband optical-electronic oscillator.Beyond frequency deviation 1MHz, phase noise is determined by voltage controlled oscillator 8
It is fixed.The effect of first phaselocked loop 11 is exactly that the Low phase noise of the wider characteristic of traditional pressuring controlling oscillator frequency and optical-electronic oscillator is special
Property is combined.The frequency of narrowband optical-electronic oscillator 1 frequency expansion is subjected to by voltage controlled oscillator 8, bandwidth is
200MHz or so.
Second phaselocked loop 22 includes：Second frequency mixer 9, the second phase discriminator 10, the second loop filter 11, second mirror
The input terminal of phase device 10 is connected with the second frequency mixer 9, and output terminal is connected with 11 input terminal of the second loop filter.Second phaselocked loop
22 further include the sampling medium oscillator 12 of extension signal frequency bandwidth, the input terminal and second of the sampling medium oscillator 12
11 output terminal of loop filter connects, the signal after reference frequency output extension.
During work, 8 and second frequency mixer 9 of voltage controlled oscillator after the locking of the first phaselocked loop 11 is carried out under fundamental wave mixing
Frequency conversion, the signal all the way of the intermediate-freuqncy signal obtained after down coversion and narrowband optical-electronic oscillator 1 after the frequency dividing of frequency divider 2 pass through the
Two phase discriminators 10 carry out phase demodulation, and the error signal that phase demodulation obtains is integrated by the second loop filter 11, the mistake after integration
Difference signal feedback control sampling medium oscillator 12, after loop-locking, narrowband optical-electronic oscillator 1 has been locked at sampling medium and has shaken
It swings on device 12, the second phaselocked loop 22 is to vibrate the signal that the first phaselocked loop 11 exports by locked loops and sampling medium
Device 12 locks, and signal extension of the 200MHz bandwidth that the first phaselocked loop 11 is generated to bandwidth 1100MHz or so, loop bandwidth is set
It puts more than 1MHz, in this way, the phase noise characteristic of the second phaselocked loop 22 output signal, in loop bandwidth, replicates the first lock
Phase ring 11 export signal phase noise characteristic, outside loop bandwidth, phase noise by the performance of sampling medium oscillator 12 Lai
It determines.In this way, the characteristic of Low phase noise optical-electronic oscillator is combined with oscillator voltage controlled oscillator and sampling medium oscillator,
Not only the phase noise characteristic of optical-electronic oscillator had been maintained, but also make use of voltage controlled oscillator and sampling medium oscillator band wider
Characteristic has carried out frequency expansion.
The wideband frequency expanding unit of optical-electronic oscillator is further included by three-mixer 13, the 3rd phase discriminator 14, tricyclic
The 3rd phaselocked loop 33 that path filter 15, YIG oscillator 16 are formed, the sampling medium oscillator 12 and three-mixer 13
Input terminal connects, and the signal after 22 frequency expansion of the second phaselocked loop is sent to three-mixer 13.3rd phaselocked loop 33 also wraps
Frequency dividing frequency multiplier 17 is included, 16 output terminal of YIG oscillator is connected with frequency dividing frequency multiplier 17, signal frequency is extended rear defeated
Go out.
During work, sampling medium oscillator 12 and three-mixer 13 after the locking of the second phaselocked loop 33 carry out fundamental wave
Down coversion is mixed, another way of the intermediate-freuqncy signal obtained after down coversion with narrowband optical-electronic oscillator 1 after the frequency dividing of frequency divider 2 is believed
Number phase demodulation is carried out by the 3rd phase discriminator 14, the error signal that phase demodulation obtains integrated by tricyclic path filter 15, product
Error signal feedback control YIG oscillator 16 after point, after loop-locking, narrowband optical-electronic oscillator has been locked at YIG vibrations
On device 16, the 3rd phaselocked loop 33 is that the signal that the second phaselocked loop 22 exports is passed through locked loops and YIG oscillator 16
It is locked, the signal extension for the 1100MHz bandwidth that the second phaselocked loop 22 is generated is to bandwidth (10~20) GHz, in this way, the 3rd
Phaselocked loop 33 exports the phase noise characteristic of signal, in loop bandwidth, replicates the phase of the second phaselocked loop 22 output signal
Noise characteristic, outside loop bandwidth, phase noise is determined by the performance of YIG oscillator 16.
Since the use frequency range of voltage controlled oscillator, sampling medium oscillator and YIG oscillator is different, therefore in different frequency range
The characteristic of Low phase noise optical-electronic oscillator is combined with voltage controlled oscillator, sampling medium oscillator and YIG oscillator, is both kept
The phase noise characteristic of optical-electronic oscillator, but make use of voltage controlled oscillator, sampling medium oscillator and YIG oscillator frequency band compared with
Wide characteristic has carried out frequency expansion.
A kind of wideband frequency expanding unit of viewpoint oscillator described in technical solution of the present invention solves microwave current
For Millimeter-Wave Source in phase noise calibration process, reference source is difficult to the problem of selection, has the following advantages：Solves traditional frequency
The reference source phase noise of rate synthesis can not meet volume biography requirement；By polycyclic frequency expansion technology, solves optical-electronic oscillator
Output frequency it is narrow, the calibration requirements in broadband can not be met.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention for those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways, all embodiments can not be exhaustive here, it is every to belong to this hair
The obvious changes or variations that bright technical solution is extended out is still in the row of protection scope of the present invention.
Claims (10)
1. a kind of wideband frequency expanding unit of optical-electronic oscillator, which is characterized in that including：Narrowband optical-electronic oscillator, frequency divider,
First phaselocked loop, the second phaselocked loop, wherein,
Input terminal of the narrowband optical-electronic oscillator respectively with frequency divider, the first phaselocked loop is connected；
Output terminal of the input terminal of second phaselocked loop respectively with the first phaselocked loop, frequency divider is connected；
The signal of narrowband optical-electronic oscillator output after the first phaselocked loop, the second phaselocked loop frequency conversion respectively by exporting.
2. the apparatus according to claim 1, which is characterized in that first phaselocked loop includes：First frequency mixer, the first mirror
Phase device, the first loop filter, the input terminal of first phase discriminator are connected with the first frequency mixer, and output terminal and the first loop are filtered
The input terminal connection of ripple device.
3. the apparatus of claim 2, which is characterized in that first phaselocked loop further includes power divider, described
The input terminal of power divider is connected with narrowband optical-electronic oscillator, and output terminal is connected with the first frequency mixer.
4. device according to claim 3, which is characterized in that first phaselocked loop, which further includes, reduces the straight of signal frequency
Connect digital frequency synthesizer, the input terminal of the Direct Digital Synthesizer is connected with power divider, output terminal with
First phase discriminator connects.
5. the apparatus of claim 2, which is characterized in that first phaselocked loop further includes extension signal frequency range
Voltage controlled oscillator, the input terminal of the voltage controlled oscillator is connected with the output terminal of the first loop filter, output terminal and second
Phaselocked loop connects.
6. the apparatus according to claim 1, which is characterized in that second phaselocked loop includes：Second frequency mixer, the second mirror
Phase device, the second loop filter, the input terminal of second phase discriminator are connected with the second frequency mixer, and output terminal and the second loop are filtered
Ripple device input terminal connects.
7. device according to claim 6, which is characterized in that second phaselocked loop further includes extension signal frequency bandwidth
Sampling medium oscillator, the input terminal of the sampling medium oscillator is connected with the second loop filter output terminal, output frequency
Signal after the extension of rate scope.
8. the apparatus according to claim 1, which is characterized in that described device is further included by three-mixer, the 3rd phase demodulation
The 3rd phaselocked loop that device, tricyclic path filter, YIG oscillator are formed, the sampling medium oscillator and three-mixer
Input terminal connects, and the signal after the second phase-locked loop frequency is extended is sent to three-mixer.
9. device according to claim 8, which is characterized in that the output terminal of the frequency divider connects respectively with the second phase discriminator
It connects, the connection of the 3rd phase discriminator, it is respectively that the signal that narrowband optical-electronic oscillator exports and corresponding second frequency mixer, three-mixer is defeated
The signal gone out carries out phase bit comparison.
10. device according to claim 9, which is characterized in that the 3rd phaselocked loop further includes frequency dividing frequency multiplier, described
YIG oscillator output terminal is connected with frequency dividing frequency multiplier, is exported after being extended to signal frequency.
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| CN201711435135.0A CN108055035B (en) | 2017-12-26 | 2017-12-26 | Broadband frequency extension device of photoelectric oscillator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712213A (en) * | 2018-07-19 | 2018-10-26 | 南京航空航天大学 | Microwave three/two divided-frequency method and device based on optoelectronic oscillation loop |
| CN108988857A (en) * | 2018-10-19 | 2018-12-11 | 贵州航天计量测试技术研究所 | A kind of broadband low phase noise frequency synthesizer and method based on optical-electronic oscillator |
| CN109067392A (en) * | 2018-07-25 | 2018-12-21 | 北京无线电计量测试研究所 | A kind of frequency combining method and device based on optical-electronic oscillator |
| CN110034758A (en) * | 2019-03-11 | 2019-07-19 | 北京大学 | A kind of injection locking millimeter wave divider and its dividing method based on self-oscillation optical frequency com |
| CN113422604A (en) * | 2021-08-24 | 2021-09-21 | 深圳市鼎阳科技股份有限公司 | Frequency synthesizer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242181A (en) * | 2008-03-20 | 2008-08-13 | 北京创毅视讯科技有限公司 | A frequency mixer and frequency mixing method |
| CN201230306Y (en) * | 2008-06-20 | 2009-04-29 | 鞍山吉兆电子有限公司 | Dual phase-locked loop frequency synthesizer |
| CN202334492U (en) * | 2011-09-28 | 2012-07-11 | 四川九洲电器集团有限责任公司 | Frequency synthesizer |
| CN103795410B (en) * | 2014-01-24 | 2017-03-01 | 南京熊猫电子股份有限公司 | A kind of broadband frequency agility frequency source based on two phase-locked loop |
| CN206294152U (en) * | 2017-01-09 | 2017-06-30 | 成都西蒙电子技术有限公司 | Frequency Synthesizer with Low Phase Noise |
-
2017
- 2017-12-26 CN CN201711435135.0A patent/CN108055035B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101242181A (en) * | 2008-03-20 | 2008-08-13 | 北京创毅视讯科技有限公司 | A frequency mixer and frequency mixing method |
| CN201230306Y (en) * | 2008-06-20 | 2009-04-29 | 鞍山吉兆电子有限公司 | Dual phase-locked loop frequency synthesizer |
| CN202334492U (en) * | 2011-09-28 | 2012-07-11 | 四川九洲电器集团有限责任公司 | Frequency synthesizer |
| CN103795410B (en) * | 2014-01-24 | 2017-03-01 | 南京熊猫电子股份有限公司 | A kind of broadband frequency agility frequency source based on two phase-locked loop |
| CN206294152U (en) * | 2017-01-09 | 2017-06-30 | 成都西蒙电子技术有限公司 | Frequency Synthesizer with Low Phase Noise |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712213A (en) * | 2018-07-19 | 2018-10-26 | 南京航空航天大学 | Microwave three/two divided-frequency method and device based on optoelectronic oscillation loop |
| CN108712213B (en) * | 2018-07-19 | 2019-10-29 | 南京航空航天大学 | Microwave three/two divided-frequency method and device based on optoelectronic oscillation loop |
| CN109067392A (en) * | 2018-07-25 | 2018-12-21 | 北京无线电计量测试研究所 | A kind of frequency combining method and device based on optical-electronic oscillator |
| CN108988857A (en) * | 2018-10-19 | 2018-12-11 | 贵州航天计量测试技术研究所 | A kind of broadband low phase noise frequency synthesizer and method based on optical-electronic oscillator |
| CN108988857B (en) * | 2018-10-19 | 2023-07-07 | 贵州航天计量测试技术研究所 | Broadband low-phase-noise frequency synthesizer and method based on photoelectric oscillator |
| CN110034758A (en) * | 2019-03-11 | 2019-07-19 | 北京大学 | A kind of injection locking millimeter wave divider and its dividing method based on self-oscillation optical frequency com |
| CN110034758B (en) * | 2019-03-11 | 2021-01-19 | 北京大学 | Injection locking millimeter wave frequency divider based on self-oscillation optical frequency comb and frequency dividing method thereof |
| CN113422604A (en) * | 2021-08-24 | 2021-09-21 | 深圳市鼎阳科技股份有限公司 | Frequency synthesizer |
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| CN108055035B (en) | 2022-03-04 |
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