CN202050386U - 13.5 GHz low phase noise quadruple frequency signal source component - Google Patents
13.5 GHz low phase noise quadruple frequency signal source component Download PDFInfo
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- CN202050386U CN202050386U CN2011200633542U CN201120063354U CN202050386U CN 202050386 U CN202050386 U CN 202050386U CN 2011200633542 U CN2011200633542 U CN 2011200633542U CN 201120063354 U CN201120063354 U CN 201120063354U CN 202050386 U CN202050386 U CN 202050386U
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Abstract
The utility model discloses a 13.5 GHz low phase noise quadruple frequency signal source component which comprises a shielding box body and a substrate arranged in the box body. A microwave circuit is loaded on the substrate; the microwave circuit comprises a frequency synthesizer composing of a controller, a phase locked loop circuit and a voltage-controlled oscillator VCO; the output frequency of the frequency synthesizer is 3.375GHz; a crystal oscillation frequency signal and a feedback signal output by the VCO are transmitted to two frequency signal input ends of a phase discriminator in the phase locked loop circuit; a control signal is output by the controller to the digital signal input end of the phase discriminator; a control voltage is output by the phase discriminator to the VCO; the output end of the VCO is the output end of the frequency synthesizer; a frequency signal is output by the frequency synthesizer to filter harmonic through a low pass filter, then is transmitted into a band-pass filter after entering a frequency quadrupler for frequency multiplication and finally output by filtering stray through the band-pass filter. A signal source with high output frequency, low phase noise and high stability can be realized on the basis of higher level of integration; the debugging is simple, thereby effectively meeting the requirements of a microwave electronic system.
Description
Technical field
The utility model relates to the microwave device technical field, specifically is the low quadruple signal source assembly of making an uproar mutually of a kind of 13.5GHz.
Background technology
Frequency signal source is the heart of modern radio-frequency and microwave electron system, and its performance directly influences whole electronic system.Along with the development of radiotechnics, people have proposed the design of various frequency sources.Wherein the phase-locking type frequency source has the output frequency height, frequency stability height, advantage such as frequency spectrum is pure, spurious clutter is little and phase noise is low.And can realize high output frequency, low make an uproar mutually, the signal source of high stability, miniaturization, on present domestic market also in minority, because its high integrated and high-frequency characteristics, so process in structure, aspects such as the welding procedure of material are difficult to guarantee the correlation technique requirement, perhaps be exactly complex structure, be not easy debugging, production in enormous quantities is restricted.
Summary of the invention
The purpose of this utility model is the deficiency at existing product, and a kind of 13.5GHz is provided the low quadruple signal source assembly of making an uproar mutually, its compact conformation, and debugging can be satisfied the requirement of microwave electron system effectively easily.
For achieving the above object, the technical scheme that the utility model is taked is: the low quadruple signal source assembly of making an uproar mutually of a kind of 13.5GHz, comprise the substrate in shielding box body and the box body, be loaded with microwave circuit on the substrate, described microwave circuit comprises that output frequency is that the frequency of 3.375GHz is combined, low pass filter, quadrupler and band pass filter; Described frequency is combined output frequency signal through the low pass filter filters out harmonic wave, enter the quadrupler frequency multiplication again after, send into band pass filter, through the band pass filter filtering is spuious after, export;
Described frequency is combined and is comprised controller, phase-locked loop circuit and voltage controlled oscillator VCO; The output of VCO is the output of combining frequently; The frequency signal of crystal oscillator output and the output feedback signal of VCO are passed to two frequency signal input end of the phase discriminator of phase-locked loop circuit, and controller output control signal is given the digital signal input end of phase discriminator; Phase discriminator output control voltage is given VCO.
As improvement of the present utility model, described shielding box body has a plurality of; In the described microwave circuit, crystal oscillator place part, phase-locked loop circuit, VCO and low pass filter place part, quadrupler place part, band pass filter place part lay respectively in the different shielding box bodys; Connect by radio-frequency (RF) coaxial SMA connector between the circuit in difference shielding box body.Low, the compact conformation of this connector loss, antivibration and capability of electromagnetic shielding excellence; The shielding box body that splits makes system configuration more clear, assemble simpler, and since its shielding make the performance of system own not reduce because of the phase mutual interference.
As a kind of improvement of the present utility model, described shielding box body is provided with 1 above insulator, also is in order to improve the shielding properties of system's each several part, to avoid external disturbance.
As improvement of the present utility model, described crystal oscillator is a temperature compensating crystal oscillator, and its frequency of oscillation is stable, can compensate because of variations in temperature produces to drift about; Described phase-locked loop circuit is a monolithic integrated phase lock chip, and its integrated level is higher, is beneficial to miniaturization and relates to, and can use relevant ripe circuit of the prior art in addition and realize phase-locked loop; Described shielding box body is aluminium matter shielding box body, and aluminium is that a kind of cost is lower, and other low-cost metal-insulator medium preferably on year-on-year basis.
As a kind of improvement of the present utility model, described substrate is wide-dielectric constant polytetrafluoroethylglass glass cloth coated copper clad laminate, and it is homemade microwave board, and dielectric constant is wide, and has excellent machinery, chemistry and physical electric performance.
As improvement of the present utility model, described low pass filter, monolithic integrated phase lock chip, integrated voltage controlled oscillator, quadrupler, band pass filter are the mmic chip of Surface Mount encapsulation, this just can greatly reduce the entire circuit volume, is convenient to the miniaturization Design of assembly.
Controller during 3.375GHz combines frequently in the utility model is selected single-chip microcomputer for use, combines the control program burning frequently in the memory of single-chip microcomputer, is convenient to online modification and repeats erasablely, is used for controlling 3.375GHz and combines the output of phase-locked related operation and frequency frequently.In addition, controller also can adopt other logical device.
The beneficial effects of the utility model are: the frequency of 3.75GHz is combined and is selected simple three-way serial ports control, high workload frequency, low monolithic integrated phase lock chip of making an uproar mutually for use, and the integrated voltage controlled oscillator with advantages such as ultra-low noise, low loop voltage and higher output powers is built, realize the comprehensive output of low frequency of making an uproar mutually by Single-chip Controlling, guaranteed the frequency signal optimization in Properties after the frequency multiplication; Quadrupler has been realized higher shg efficiency and less output harmonic wave; The utility model is used high-k, low-loss material as substrate simultaneously, and circuit has realized that through the design of Simulation of software less insertion loss and bigger band suppress outward; Owing to each parts in the circuit all adopt the encapsulation of microminiature Surface Mount, peripheral circuit is less, has saved the PCB layout space in addition, helps the integral miniaturization design; Radio-frequency (RF) coaxial SMA connector is used in the connection of intermodule, makes and assembles by compact conformation more simple.
Description of drawings
Fig. 1 is the utility model structural principle block diagram;
Fig. 2 is the utility model monnolithic case structure chart;
Fig. 3 is the utility model box body internal structure sketch.
Embodiment
For content of the present utility model is become apparent more, be described further below in conjunction with the drawings and specific embodiments.
In conjunction with shown in Figure 1, the utility model is divided into from function to be combined and frequency multiplication filtering two parts frequently, comprise that the output frequency that is made of controller, phase-locked loop circuit and voltage controlled oscillator VCO is that the frequency of 3.375GHz is combined, the output feedback signal of crystal oscillator frequency signal and VCO is passed to two frequency signal input end of phase discriminator in the phase-locked loop circuit, and controller output control signal is given the digital signal input end of phase discriminator; Phase discriminator output control voltage is given VCO, and the output of VCO is the output of combining frequently; Frequently combine output frequency signal through the low pass filter filters out harmonic wave, enter the quadrupler frequency multiplication again after, send into band pass filter, through the band pass filter filtering is spuious after, export.
In conjunction with Fig. 2 and shown in Figure 3, the utility model comprises 4 aluminium matter shielding box bodys 2, crystal oscillator 1 place part in the microwave circuit, phase-locked loop circuit 6, voltage-controlled oscillating circuit (VCO) 7 and low pass filter 4 place parts, quadrupler 8 place parts, during band pass filter 9 place parts lay respectively in the different shielding box bodys 2, and be positioned on the wide-dielectric constant polytetrafluoroethylglass glass cloth coated copper clad laminate 10 of box body, crystal oscillator 1 is a temperature compensating crystal oscillator, phase-locked loop circuit 6 adopts monolithic integrated phase lock chip, and VCO adopts integrated voltage controlled oscillator; Be equipped with the shielding that 3 insulators 11 are used to guarantee box body on each aluminium matter shielding box body 2, avoid external electromagnetic interference.
Single-chip microcomputer is used for the comprehensive frequently output of control in the utility model, after the 3.375GHz frequency signal process low pass filter 4 filtering high order harmonic components, is input in the quadrupler 8, carries out inside earlier and amplifies, and exports through after the quadruple again; Output signal the spuious filtering of each harmonic, is exported the 13.5GHz signal by band pass filter 9.
Circuit of the present utility model relies on the application of wide-dielectric constant polytetrafluoroethylglass glass cloth coated copper clad laminate 10, makes that the performance of circuit is given full play to, and has guaranteed the realization of every index; And substituted import sheet material with this homemade sheet material, effectively reduced cost and lead time.Relevant parameter is set and found the solution to the model that the frequency of conventional design is combined, frequency multiplier, band pass filter need be set up entire device in the associated electromagnetic field simulation software, so that obtain optimum performance, the utility model also obtains thus.Below be the component technology index that designs by the demand of system:
Output frequency: 13.5GHz;
Power output: 0dBm;
Phase noise :≤-72dBc/Hz@100Hz;
≤-82dBc/Hz＠1kHz；
≤-92dBc/Hz＠10kHz；
≤-102dBc/Hz＠100kHz；
Spuious output :≤-60dBc;
Harmonic wave suppresses: 〉=30dBc;
Working temperature :-40～+ 55 ℃;
Frequency stability: ± 0.5ppm(is temperature entirely)
Concrete case study on implementation only is a preferable case study on implementation of the present utility model described in the utility model, is not to be used for limiting practical range of the present utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be as technology category of the present utility model.
Claims (9)
1. a 13.5GHz hangs down the quadruple signal source assembly of making an uproar mutually, comprise the substrate in shielding box body and the box body, be loaded with microwave circuit on the substrate, it is characterized in that, described microwave circuit comprises that output frequency is that the frequency of 3.375GHz is combined, low pass filter, quadrupler and band pass filter; Described frequency is combined output frequency signal through the low pass filter filters out harmonic wave, enter the quadrupler frequency multiplication again after, send into band pass filter, through the band pass filter filtering is spuious after, export;
Described frequency is combined and is comprised controller, phase-locked loop circuit and voltage controlled oscillator VCO; The output of VCO is the output of combining frequently; The frequency signal of crystal oscillator output and the output feedback signal of VCO are passed to two frequency signal input end of the phase discriminator of phase-locked loop circuit, and controller output control signal is given the digital signal input end of phase discriminator; Phase discriminator output control voltage is given VCO.
2. the low quadruple signal source assembly of making an uproar mutually of 13.5GHz according to claim 1 is characterized in that described shielding box body has a plurality of; In the described microwave circuit, crystal oscillator place part, phase-locked loop circuit, VCO and low pass filter place part, quadrupler place part, band pass filter place part lay respectively in the different shielding box bodys; Connect by radio-frequency (RF) coaxial SMA connector between the circuit in difference shielding box body.
3. the low quadruple signal source assembly of making an uproar mutually of 13.5GHz according to claim 1 and 2 is characterized in that described crystal oscillator is a temperature compensating crystal oscillator.
4. the low quadruple signal source assembly of making an uproar mutually of 13.5GHz according to claim 1 and 2 is characterized in that described shielding box body is provided with 1 above insulator.
5. the low quadruple signal source assembly of making an uproar mutually of 13.5GHz according to claim 1 is characterized in that, described shielding box body is aluminium matter shielding box body.
6. the low quadruple signal source assembly of making an uproar mutually of 13.5GHz according to claim 1 is characterized in that described substrate is wide-dielectric constant polytetrafluoroethylglass glass cloth coated copper clad laminate.
7. the low quadruple signal source assembly of making an uproar mutually of 13.5GHz according to claim 1 is characterized in that described low pass filter, phase-locked loop circuit, voltage controlled oscillator, quadrupler and band pass filter are the mmic chip of Surface Mount encapsulation.
8. the low quadruple signal source assembly of making an uproar mutually of 13.5GHz according to claim 1 is characterized in that described phase-locked loop circuit is a monolithic integrated phase lock chip.
9. the low quadruple signal source assembly of making an uproar mutually of 13.5GHz according to claim 1 and 2 is characterized in that described controller is a single-chip microcomputer, combines the control program burning frequently in the memory of single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200633542U CN202050386U (en) | 2011-03-11 | 2011-03-11 | 13.5 GHz low phase noise quadruple frequency signal source component |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200633542U CN202050386U (en) | 2011-03-11 | 2011-03-11 | 13.5 GHz low phase noise quadruple frequency signal source component |
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| CN202050386U true CN202050386U (en) | 2011-11-23 |
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| CN2011200633542U Expired - Lifetime CN202050386U (en) | 2011-03-11 | 2011-03-11 | 13.5 GHz low phase noise quadruple frequency signal source component |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199795A (en) * | 2013-04-23 | 2013-07-10 | 北京交通大学 | Independent and incoherent double-laser low-phase-noise 16-multiplying-frequency signal generation device |
| CN103978403A (en) * | 2014-05-27 | 2014-08-13 | 无锡汉柏信息技术有限公司 | Machine tool dynamic error detection method and device |
| CN104682955A (en) * | 2015-03-02 | 2015-06-03 | 成都宝通天宇电子科技有限公司 | Frequency-mixed phase-locking high phase-noise broadband microwave source |
| CN105429633A (en) * | 2014-09-17 | 2016-03-23 | 常熟市荣兴化纺有限责任公司 | Low-phase-noise microwave local oscillator signal generator |
-
2011
- 2011-03-11 CN CN2011200633542U patent/CN202050386U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199795A (en) * | 2013-04-23 | 2013-07-10 | 北京交通大学 | Independent and incoherent double-laser low-phase-noise 16-multiplying-frequency signal generation device |
| CN103199795B (en) * | 2013-04-23 | 2015-12-23 | 北京交通大学 | A kind of independent incoherent double-laser low phase noise 16 frequency-doubled signal generating apparatus |
| CN103978403A (en) * | 2014-05-27 | 2014-08-13 | 无锡汉柏信息技术有限公司 | Machine tool dynamic error detection method and device |
| CN105429633A (en) * | 2014-09-17 | 2016-03-23 | 常熟市荣兴化纺有限责任公司 | Low-phase-noise microwave local oscillator signal generator |
| CN105429633B (en) * | 2014-09-17 | 2018-10-19 | 浙江欧托电气有限公司 | The microwave local signal generator of low phase noise |
| CN104682955A (en) * | 2015-03-02 | 2015-06-03 | 成都宝通天宇电子科技有限公司 | Frequency-mixed phase-locking high phase-noise broadband microwave source |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |
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| CX01 | Expiry of patent term |