CN101030668A - Wide-band microwave local oscillator generator combined direct multiply-frequency with lock phase - Google Patents
Wide-band microwave local oscillator generator combined direct multiply-frequency with lock phase Download PDFInfo
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- CN101030668A CN101030668A CN 200710037725 CN200710037725A CN101030668A CN 101030668 A CN101030668 A CN 101030668A CN 200710037725 CN200710037725 CN 200710037725 CN 200710037725 A CN200710037725 A CN 200710037725A CN 101030668 A CN101030668 A CN 101030668A
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Abstract
The invention is concerned with the broad band microwave local-surge generator, it is: the vector-controlled oscillator creates low-voice high-frequency signal to the power divider, the phase-lock circuit, the loop filter in turn, then feedback to the vector-controlled oscillator in order to form the phase-lock loop signal source creating circuit that is the decimal fraction frequency division and reflecting-phase mixed-dispel suppression, the high-frequency signal creating by the circuit passes the frequency multiplier, the filter and the amplifier to get the signal source with different frequency that is needed by the microwave system. The invention can achieve the multi circuit local-surge creation on the veneer with lower cost.
Description
Technical field
The present invention relates to a kind of wide-band microwave local oscillator generator, particularly a kind of direct frequency multiplication and the phase-locked wide-band microwave local oscillator generator that combines.
Background technology
In the microwave point-to-point communication technology of PDH and SDH, in order existing communication band not to be crosstalked, general work also has strict requirement in the high-frequency microwave frequency range of 7GHz, 8GHz even tens G to signal quality.Based on this, the high-frequency local oscillation generator that is used for the microwave frequency conversion is also growing.There is following requirement in system to the high-frequency local oscillation generator:
1) lower cost: many microwave devices have fabulous index owing to concentrated most advanced now technology, but cost an arm and a leg simultaneously, are implemented in the communication more and more important in the low cost of microwave band;
2) good making an uproar mutually and spuious control performance: this is that the important indicator of microwave communication embodies, directly have influence on the quality of communication, mainly contain direct frequency doubling technology and microlock technology now, directly frequency doubling technology can be accomplished index preferably, but broadband and little stepping are difficult for realizing; The microlock technology can be accomplished broadband and the near low cost realization of small step, but is difficult to accomplish high band at present;
3) good interference free performance and Electro Magnetic Compatibility;
4) be fit to produce in batches, conformity of production is good, easily debugging.
Summary of the invention
Technical problem of the present invention is that a kind of combine direct frequency multiplication and the phase-locked wide-band microwave local oscillator generator that combines phase-locked and the frequency multiplication advantage will be provided.
In order to solve above technical problem, the invention provides a kind of direct frequency multiplication and the phase-locked wide-band microwave local oscillator generator that combines, realized that on veneer low-cost multichannel local oscillator produces, its performance index can satisfy system requirements, and production requirement is also relatively low.Piezoelectric oscillator VCO produces the low noise high-frequency signal to power divider, delivers to phase lock circuitry, delivers to loop filter then, feeds back to the phase-locked loop signal source generation circuit that piezoelectric oscillator VCO constitutes fractional frequency division and the spuious inhibition of phase demodulation again.The phase-locked loop signal source generation circuit of this fractional frequency division and the spuious inhibition of phase demodulation can produce the broadband phase locked source signal that is up to 4GHz, and can realize little stepping and broadband application.
The high-frequency signal that the phase-locked loop signal source generation circuit of fractional frequency division and the spuious inhibition of phase demodulation produces behind frequency multiplier, filter, amplifier, obtains the required different frequency signals source of microwave system.Wherein frequency multiplier has adopted passive frequency multiplier circuit chip, and this chip can provide certain source frequency inhibition degree; The circuit form that filter has adopted direct little band to print can low-costly be realized, and is easy to produce; Adopting multistage amplification and frequency multiplication is for better spuious inhibition and higher local oscillation power output are provided.
Described filter is the distributed constant that utilizes microwave substrate, forms high frequency filter jointly with circuit board.
Superior effect of the present invention is:
1) combines the phase locked source and the direct advantage of frequency multiplication, simplify circuit, and guaranteed the quality of all local oscillation signals, adopted advanced phase lock circuitry, can realize little stepping of frequency and phase demodulation frequency inhibit feature, guaranteed the signal quality of phase locked source;
2) all multichannel microwave local vibration source generators on veneer, have been realized, have provided cost savings to a certain extent that be fit to produce in batches, because the direct integrated filter of circuit board has omitted loaded down with trivial details microwave debug process, whole plate can realize exempting from debugging;
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present invention;
The number in the figure explanation
1-piezoelectric oscillator VCO; The 2-power divider;
The phase-locked chip of 3-; The 4-loop filter;
The 5-frequency multiplier; The 6-filter;
The 7-amplifier.
Embodiment
See also shown in Figure 1ly, the invention will be further described.
Shown in Fig. 1 schematic block circuit diagram of the present invention, the invention provides a kind of direct frequency multiplication and the phase-locked wide-band microwave local oscillator generator that combines, 1-piezoelectric oscillator VCO produces the low noise high-frequency signal to power divider 2, deliver to phase lock circuitry, deliver to loop filter 4 then, feed back to the phase-locked loop signal source generation circuit that 1-piezoelectric oscillator VCO constitutes fractional frequency division and the spuious inhibition of phase demodulation again; Frequency multiplier 5, filter 6 and 7 three parts of amplifier have been formed direct frequency multiplier circuit, and the signal that phase locked source is produced carries out frequency multiplication output.
Circuit partly is made up of phase locked source part and direct frequency multiplication.
Phase locked source partly is mainly used to produce the low frequency microwave signal of little stepping, and it is a phase feedback system, has realized the steady lock of frequency.The microwave signal that 1-piezoelectric oscillator VCO produces feeds back to phase-locked chip 3 via power divider 2, the reference signal that produces with VCXO behind phase-locked chip 3 inner frequency divisions is done bit comparison mutually, produce control voltage, by returning control 1-piezoelectric oscillator VCO after loop filter 4 filtering again, form a phase feedback circuit thus, can obtain stable frequency output; What phase-locked chip 3 used is the ADF4153 series of ADI company, and phase-locked loop member such as high frequency divider, decimal frequency divider, phase discriminator, current pump that this chip is integrated can realize that little stepping hangs down spuious phase-locked application; Loop filter 4 has adopted active second-order loop, and the near-end that can effectively the suppress 1-piezoelectric oscillator VCO 1-piezoelectric oscillator VCO that makes an uproar has mutually adopted low noise micro-wave resonator circuit, has noiseproof feature preferably.The phase-locked loop signal source generation circuit of this fractional frequency division and the spuious inhibition of phase demodulation can produce the broadband phase locked source signal that is up to 4GHz, and can realize little stepping and broadband application.
The high-frequency signal that the phase-locked loop signal source generation circuit of fractional frequency division and the spuious inhibition of phase demodulation produces behind frequency multiplier 5, filter 6, amplifier 7, obtains the required different frequency signals source of microwave system.Filter 6 is integrated micro distributed constant filters on monoblock microwave substrate circuit, utilizes the distributed constant of microwave substrate, has formed high frequency filter jointly with circuit board.
The main high-frequency signal frequency frequency multiplication that the phase-locked loop signal source generation circuit of fractional frequency division and the spuious inhibition of phase demodulation is produced of direct frequency multiplication part is to produce the microwave signal of higher frequency.The phase-locked loop signal source frequency of fractional frequency division and the spuious inhibition of phase demodulation be through can producing the multiple harmonic of itself behind the frequency multiplier 5, according to needs differently, select for use different filter 6 can obtain the required difference of microwave system signal doubly time.Wherein frequency multiplier 5 has adopted passive frequency multiplier circuit chip, and this chip can provide certain source frequency inhibition degree; The circuit form that filter 6 has adopted direct little band to print can low-costly be realized, and is easy to produce, and adopting multistage amplification and frequency multiplication is for better spuious inhibition and higher local oscillation power output are provided.
Claims (3)
1, a kind of direct frequency multiplication and the phase-locked wide-band microwave local oscillator generator that combines, it is characterized in that: piezoelectric oscillator VCO produces the low noise high-frequency signal to power divider, deliver to phase lock circuitry, deliver to loop filter then, feed back to the phase-locked loop signal source generation circuit that piezoelectric oscillator VCO constitutes fractional frequency division and the spuious inhibition of phase demodulation again.
2, by described a kind of direct frequency multiplication of claim 1 and the phase-locked wide-band microwave local oscillator generator that combines, it is characterized in that: the high-frequency signal that the phase-locked loop signal source generation circuit of fractional frequency division and the spuious inhibition of phase demodulation produces, behind frequency multiplier, filter, amplifier, obtain the required different frequency signals source of microwave system.
3, by described a kind of direct frequency multiplication of claim 2 and the phase-locked wide-band microwave local oscillator generator that combines, it is characterized in that: described filter is the distributed constant that utilizes microwave substrate, forms high frequency filter jointly with circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200710037725 CN101030668A (en) | 2007-02-28 | 2007-02-28 | Wide-band microwave local oscillator generator combined direct multiply-frequency with lock phase |
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| CN 200710037725 CN101030668A (en) | 2007-02-28 | 2007-02-28 | Wide-band microwave local oscillator generator combined direct multiply-frequency with lock phase |
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| CN101030668A true CN101030668A (en) | 2007-09-05 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480281A (en) * | 2010-11-30 | 2012-05-30 | 中国科学院微电子研究所 | Millimeter wave frequency source device |
| CN102545826A (en) * | 2010-12-10 | 2012-07-04 | 上海卫星工程研究所 | Local frequency source of secondary frequency conversion receiver for satellite |
| CN103543349A (en) * | 2012-07-16 | 2014-01-29 | 核工业西南物理研究院 | Wideband multi-beam microwave source correlation reflection measuring system on basis of VCO (voltage controlled oscillator) modulation |
| CN104124922A (en) * | 2014-07-31 | 2014-10-29 | 中国科学院上海微***与信息技术研究所 | 3mm-waveband signal source and application thereof |
| CN104950171A (en) * | 2014-03-31 | 2015-09-30 | 核工业西南物理研究院 | Multichannel broadband microwave radiometer with self-calibration function |
| CN106656227A (en) * | 2015-10-28 | 2017-05-10 | 扬州海科电子科技有限公司 | 3 to 18GHz microwave receiving front end |
| CN104569584B (en) * | 2013-10-09 | 2017-08-18 | 核工业西南物理研究院 | Ultra wide band frequency sweep microwave radiometer based on frequency doubling technology |
| CN109347507A (en) * | 2018-10-29 | 2019-02-15 | 中国航空无线电电子研究所 | Broadband can configure C-band radio-frequency front-end |
| CN110058228A (en) * | 2018-08-13 | 2019-07-26 | 四川久成泰安科技有限公司 | A kind of new type compound array and system for mm-wave imaging technology |
| CN113872633A (en) * | 2021-11-18 | 2021-12-31 | 中国航空无线电电子研究所 | UV wave band broadband reconfigurable transceiver |
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2007
- 2007-02-28 CN CN 200710037725 patent/CN101030668A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102480281B (en) * | 2010-11-30 | 2014-10-29 | 中国科学院微电子研究所 | Millimeter wave frequency source device |
| CN102480281A (en) * | 2010-11-30 | 2012-05-30 | 中国科学院微电子研究所 | Millimeter wave frequency source device |
| CN102545826B (en) * | 2010-12-10 | 2016-03-30 | 上海卫星工程研究所 | The local frequency source of secondary of frequency conversion receiver for satellite |
| CN102545826A (en) * | 2010-12-10 | 2012-07-04 | 上海卫星工程研究所 | Local frequency source of secondary frequency conversion receiver for satellite |
| CN103543349A (en) * | 2012-07-16 | 2014-01-29 | 核工业西南物理研究院 | Wideband multi-beam microwave source correlation reflection measuring system on basis of VCO (voltage controlled oscillator) modulation |
| CN103543349B (en) * | 2012-07-16 | 2016-08-31 | 核工业西南物理研究院 | Wideband multi-beam microwave source associated reflections based on VCO modulation measures system |
| CN104569584B (en) * | 2013-10-09 | 2017-08-18 | 核工业西南物理研究院 | Ultra wide band frequency sweep microwave radiometer based on frequency doubling technology |
| CN104950171A (en) * | 2014-03-31 | 2015-09-30 | 核工业西南物理研究院 | Multichannel broadband microwave radiometer with self-calibration function |
| CN104950171B (en) * | 2014-03-31 | 2018-02-13 | 核工业西南物理研究院 | A kind of multiple tracks wide-band microwave radiometer with self calibrating function |
| CN104124922A (en) * | 2014-07-31 | 2014-10-29 | 中国科学院上海微***与信息技术研究所 | 3mm-waveband signal source and application thereof |
| CN106656227A (en) * | 2015-10-28 | 2017-05-10 | 扬州海科电子科技有限公司 | 3 to 18GHz microwave receiving front end |
| CN106656227B (en) * | 2015-10-28 | 2020-04-28 | 扬州海科电子科技有限公司 | 3-18 GHz microwave receiving front end |
| CN110058228A (en) * | 2018-08-13 | 2019-07-26 | 四川久成泰安科技有限公司 | A kind of new type compound array and system for mm-wave imaging technology |
| CN109347507A (en) * | 2018-10-29 | 2019-02-15 | 中国航空无线电电子研究所 | Broadband can configure C-band radio-frequency front-end |
| CN113872633A (en) * | 2021-11-18 | 2021-12-31 | 中国航空无线电电子研究所 | UV wave band broadband reconfigurable transceiver |
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