CN106887666A - A kind of method for making microwave phase shifter - Google Patents
A kind of method for making microwave phase shifter Download PDFInfo
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- CN106887666A CN106887666A CN201710133134.4A CN201710133134A CN106887666A CN 106887666 A CN106887666 A CN 106887666A CN 201710133134 A CN201710133134 A CN 201710133134A CN 106887666 A CN106887666 A CN 106887666A
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- delay line
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- fibre
- fibre delay
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
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Abstract
The present invention relates to a kind of method for making microwave phase shifter, mainly Phase shift precision present in solution prior art is low, the small technical problem of phase-shift phase.The present invention passes through to use a kind of microwave phase shifter based on photoelectricity interchanging device, including for exporting the narrow linewidth distributed feedback laser of polarised light；Polarization-maintaining fiber coupler, intensity type optical modulator, single-mode optical-fibre coupler, magneto-optic shutter are sequentially connected with narrow linewidth distributed feedback laser；The electronic fibre delay line and automatically controlled piezoelectric ceramics fibre delay line being connected in parallel with magneto-optic shutter；With the electronic fibre delay line and the common single-mode optical-fibre coupler being connected of automatically controlled piezoelectric ceramics fibre delay line；The high-speed photodetector being connected with the single-mode optical-fibre coupler；The technical scheme of intensity type optical modulator control unit and the RF signal input end mouth being connected with intensity type optical modulator, preferably resolves the problem, can be used in the industrial production of microwave phase shifter.
Description
Technical field
The present invention relates to microwave regime, be related specifically to one kind be related specifically to one kind make for communicating, remote-control romote-sensing,
The method of the microwave phase shifters in field such as instrument and meter, Aero-Space equipment, radar imagery, Medical Instruments.
Background technology
Phase shifter is a kind of device or device that a kind of phase to microwave signal is controlled regulation, in phased array thunder
It is widely used up to fields such as, communication, microwave signal measurements.Any transmission medium can all introduce phase to the fluctuation passed to wherein
Move, this is the principle of early simulation phase shifter.After modern electronic technology development, using A/D, D/A realizes digital phase-shifting technique.But
Microwave regime, phase shifter mainly uses micro-strip form Ferrite Material form.With radar, electronic countermeasure and millimeter wave microwave
The development of e measurement technology, high accuracy, the job requirement in broadband cause that existing microwave phase shifter seriously limits high band microwave
The development of application field.
Microwave phase shifter of the prior art is main based on the phase shifter of ferrite material, most widely used.Ferrite is moved
The phase shift digit of phase device is generally 4-6, and phase shift range is 1800 or 3600, and bandwidth of operation difficult to realize is more than 40GHz.
Have that Phase shift precision is low, the small technical problem of phase-shift phase.Therefore it provides a kind of Phase shift precision is high, wide bandwidth, big micro- of phase-shift phase
Ripple phase shifter is just necessary.
The content of the invention
The technical problems to be solved by the invention are that Phase shift precision present in prior art is low, and the small technology of phase-shift phase is asked
Topic.A kind of new microwave phase shifter based on photoelectricity interchanging device is provided, the microwave phase shifter has Phase shift precision high, broadband
Width, the big technical characterstic of phase-shift phase.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
A kind of microwave phase shifter based on photoelectricity interchanging device, including for exporting the narrow linewidth distributed Feedback of polarised light
Laser 101；The polarization-maintaining light for coupling output optical control signal being sequentially connected with narrow linewidth distributed feedback laser 101
Fine coupler 102, for radio-frequency input signals to be converted into the intensity type optical modulator 104 that light carries radiofrequency signal, for coupling
Export the single-mode optical-fibre coupler 106 of optical control signal, magneto-optic shutter 108；It is electronic with what the magneto-optic shutter 108 was connected in parallel
Fibre delay line 201 and automatically controlled piezoelectric ceramics fibre delay line 109；Made pottery with the electronic fibre delay line 201 and automatically controlled piezoelectricity
The single-mode optical-fibre coupler 202 that porcelain fibre delay line 109 is connected jointly；With being used for that the single-mode optical-fibre coupler 202 is connected
The high-speed photodetector 203 of phase shift signalling opto-electronic conversion；The microwave phase shifter also includes connecting with intensity type optical modulator 104
The intensity type optical modulator control unit and RF signal input end mouthful for connecing, the intensity type optical modulator control unit are used to control
The linear work of intensity type optical modulator 104 processed；The electronic fibre delay line 201 includes the variable self-focusing of two relative distance
Lens；The automatically controlled piezoelectric ceramics fibre delay line 109 includes what stroke and refractive index changed with piezoelectric ceramics voltage regulation
Single-mode fiber.
It is optimization in such scheme, further, the intensity type optical modulator control unit includes modulator driver
105, the photodetector 103 and photodetector 107 being connected with the modulator driver 105；The photodetector 103
Secondary input end also with polarization-maintaining fiber coupler 102 is connected, and photodetector 107 is also secondary defeated with single-mode optical-fibre coupler 106
Enter end to be connected.
Further, the coupling ratio of the polarization-maintaining fiber coupler 102 is 1:99.
Further, the coupling ratio of the single-mode optical-fibre coupler 106 is 1:99.
Further, the switch speed of the magneto-optic shutter 108 is not more than 10us.
Further, the electronic fibre delay line 201 includes be fixed on the housing of electronic fibre delay line first
GRIN Lens, motorized precision translation stage and is fixed on the second GRIN Lens of motorized precision translation stage.
Further, the retardation of electronic fibre delay line 201 is not less than 2000ps.
Further, the automatically controlled piezoelectric ceramics fibre delay line 109 includes cylinder type piezoelectric ceramics, is wound in cylinder type
Single-mode fiber coiling on piezoelectric ceramics.
Further, the time delay precision of automatically controlled piezoelectric ceramics fibre delay line 109 is not less than 10fs.
The present invention mutually turns Technology design microwave phase shifter using electric light, with the bandwidth of operation more than 40GHz and colourless
Effect is dissipated, Phase shift precision is up to 0.10.Phase shift range can be designed to for tens to hundreds of weeks according to the speed of Phaseshift controlling speed
Phase.Compared with existing microwave phase shifter, microwave phase shifter proposed by the present invention has Phase shift precision high, super large bandwidth and super large
The features such as phase shift momentum.Specifically, the polarised light of the output of narrow linewidth Distributed Feedback Laser 101 is 1 by coupling ratio:99 polarization-maintaining
Fiber coupler.The output light of the port of the high-power output of the coupler is by entering a coupling after intensity type optical modulator 104
Than being 1:In 99 single-mode optical-fibre coupler 106.The output light of the high-power output port of the coupler is by magneto-optic shutter 108.
By controlling magneto-optic shutter, its output light is set respectively to pass through automatically controlled piezoelectric ceramics fibre delay line 109 or electronic optical fiber delay
Line 201, delay line output light after a single-mode optical-fibre coupler 202 by entering to inject high-speed photodetector 203.Polarization maintaining optical fibre coupling
Clutch 102 and the optical signal of the small-signal output port of single-mode optical-fibre coupler 106 output respectively enter the He of photodetector 103
In 107, the two photodetectors convert optical signals into electric signal and cause intensity type light by modulator driver 105
The operating point of modulator is all the time in the range of linear modulation.Microwave signal is loaded on intensity type optical modulator 104, and this is penetrated
Frequency signal modulation exports a light and carries radiofrequency signal on light wave.The light is carried radiofrequency signal and is selected to enter any one by photoswitch
High-speed photodetector 203 is eventually entered into after planting delay line, high-speed photodetector 203 converts optical signals into dephased micro-
Ripple signal.The phase shift principle of microwave phase shifter proposed by the present invention is：In formulaIt is the phase changing capacity of phase shifter,
F is the frequency of microwave signal, and τ is the Delay Variation amount of automatically controlled piezoelectric effect fibre delay line or electronic fibre delay line.
Beneficial effects of the present invention：
Effect one, improves phase shifting accuracy；
Effect two, increases bandwidth of operation；
Effect three, increases amount of phase shift.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1, the system framework figure of the microwave phase shifter based on photoelectricity interchanging device.
Fig. 2, intensity type optical modulator control unit principle schematic.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
As shown in figure 1, the system framework of the microwave phase shifter based on photoelectricity interchanging device is as schemed.
As shown in Fig. 2 the structural principle of intensity type optical modulator control unit is as schemed.
A kind of microwave phase shifter based on photoelectricity interchanging device, including for exporting the narrow linewidth distributed Feedback of polarised light
Laser 101；The polarization-maintaining light for coupling output optical control signal being sequentially connected with narrow linewidth distributed feedback laser 101
Fine coupler 102, for radio-frequency input signals to be converted into the intensity type optical modulator 104 that light carries radiofrequency signal, for coupling
Export the single-mode optical-fibre coupler 106 of optical control signal, magneto-optic shutter 108；It is electronic with what the magneto-optic shutter 108 was connected in parallel
Fibre delay line 201 and automatically controlled piezoelectric ceramics fibre delay line 109；Made pottery with the electronic fibre delay line 201 and automatically controlled piezoelectricity
The single-mode optical-fibre coupler 202 that porcelain fibre delay line 109 is connected jointly；With being used for that the single-mode optical-fibre coupler 202 is connected
The high-speed photodetector 203 of phase shift signalling opto-electronic conversion；The microwave phase shifter also includes connecting with intensity type optical modulator 104
The intensity type optical modulator control unit and RF signal input end mouthful for connecing, the intensity type optical modulator control unit are used to control
The linear work of intensity type optical modulator 104 processed；The electronic fibre delay line 201 includes the variable self-focusing of two relative distance
Lens, the relative distance between the first GRIN Lens of change and the second GRIN Lens is carried to change during light carries radiofrequency signal
Microwave signal phase, this delay line have retardation very high, correspondence 40GHz microwave frequencies when, phase-shift phase is exceeded well over
The phase-shift phase of existing microwave phase shifter；The automatically controlled piezoelectric ceramics fibre delay line 109 includes stroke and refractive index with pressure
The single-mode fiber of electroceramics voltage regulation change, the minimal time delay precision of this delay line corresponds to 40GHz Microwave Frequencies up to fs grades
During rate, Phase shift precision exceeds well over the Phase shift precision of existing microwave phase shifter.
The intensity type optical modulator control unit includes modulator driver 105, connects with the modulator driver 105
The photodetector 103 and photodetector 107 for connecing；The photodetector 103 is also secondary defeated with polarization-maintaining fiber coupler 102
Enter end to be connected, secondary input end of the photodetector 107 also with single-mode optical-fibre coupler 106 is connected.The intensity type light modulation of selection
The three dB bandwidth of device 104 and high-speed photodetector 203 is more than 40GHz, disclosure satisfy that the work requirements of ultra wide band.
The coupling ratio of the polarization-maintaining fiber coupler 102 is 1:99.From the preferable polarization maintaining optical fibre coupling of secondary output end signal
Device, can couple small-signal to intensity type optical modulator control unit on the basis of main output is not influenceed.
The coupling ratio of the single-mode optical-fibre coupler 106 is 1:99.From the preferable polarization maintaining optical fibre coupling of secondary output end signal
Device, can couple small-signal to intensity type optical modulator control unit on the basis of main output is not influenceed.
The switch speed of the magneto-optic shutter 108 is not more than 10us, for being switched fast.The magneto-optic shutter can select switching speed
Spend faster high speed magneto-optic shutter.
The electronic fibre delay line 201 is from the first self-focusing for including being fixed on the housing of electronic fibre delay line
Lens, motorized precision translation stage and are fixed on the second GRIN Lens of motorized precision translation stage.The retardation of the electronic fibre delay line 201
Required design.
In the present embodiment, the retardation of electronic fibre delay line 201 is 2000ps, correspondence 40GHz microwave frequencies, phase shift
Amount up to 288000, exceeds well over the phase-shift phase of existing microwave phase shifter.
The automatically controlled piezoelectric ceramics fibre delay line 109 includes cylinder type piezoelectric ceramics, is wound in cylinder type piezoelectric ceramics
On single-mode fiber coiling.The time delay precision of automatically controlled piezoelectric ceramics fibre delay line can be given by the step motion control to voltage
Improve.
In the present embodiment, the time delay precision of automatically controlled piezoelectric ceramics fibre delay line 109 is 10fs.Correspondence 40GHz microwaves
During frequency, Phase shift precision is up to 0.140, exceeds well over the Phase shift precision of existing microwave phase shifter.Meanwhile, it is loaded into piezoelectric ceramics
On operating voltage change frequency be KHz grades so that the phase controlling speed of microwave phase shifter proposed by the present invention reaches
To KHz grades.
The method for making microwave phase shifter, step is as follows：
Step A. selects suitable electronic fibre delay line and electricity according to the phase shift range and precision of phase shifter by calculating
Pressure control electroceramics fibre delay line；
Step B. makes electronic fibre delay line, and the first GRIN Lens is fixed on the housing of electronic fibre delay line
On, the second GRIN Lens is fixed on motorized precision translation stage, two self-focusings are changed by the movement of motorized precision translation stage saturating
The distance between mirror, so as to come change light carry radiofrequency signal phase.
Step C. makes automatically controlled piezoelectric ceramics fibre delay line, and single-mode fiber is wound on cylinder type piezoelectric ceramics, circle
Cartridge type piezoelectric ceramics applies variable voltage, and stretching for the superincumbent single-mode fiber of coiling is changed by controlling the voltage of piezoelectric ceramics
Contracting amount and refractive index, so that the phase of the microwave signal transmitted in changing optical fiber.
The workflow of microwave phase shifter is as follows：
1st, by the microwave phase shifter access system, to electricity on phase shifter, modulator driver receives polarization maintaining optical fibre coupling
The control signal of clutch 102 and single-mode optical-fibre coupler 106, control intensity type optical modulator is operated in linear work point.
2nd, high speed magneto-optic shutter is switched over to automatically controlled piezoelectric ceramics fibre delay line and electronic fibre delay line, mobile electricity
Pressure control electroceramics fibre delay line or electronic fibre delay line produce a time delay, the output microwave signal of high-speed photodetector
Phase just correspond to occur a phase offset.
3rd, automatically controlled piezoelectric ceramics fibre delay line can be produced in high precision, the phase shift of quick regulation, and electronic optical fiber delay
Line can produce the phase-shift phase of wide range, and the high accuracy of phase shifter, quick and wide range are implemented in combination with by both.
Although being described to illustrative specific embodiment of the invention above, in order to the technology of the art
Personnel are it will be appreciated that the present invention, but the present invention is not limited only to the scope of specific embodiment, to the common skill of the art
For art personnel, as long as long as various change is in appended claim restriction and the spirit and scope of the invention for determining, one
The innovation and creation using present inventive concept are cut in the row of protection.
Claims (1)
1. a kind of method for making microwave phase shifter, it is characterised in that step is as follows：
Step A. selects suitable electronic fibre delay line and automatically controlled pressure according to the phase shift range and precision of phase shifter by calculating
Electroceramics fibre delay line；
Step B. makes electronic fibre delay line, and the first GRIN Lens is fixed on the housing of electronic fibre delay line, will
Second GRIN Lens is fixed on motorized precision translation stage, is changed by the movement of motorized precision translation stage between two GRIN Lens
Distance, so as to come change light carry radiofrequency signal phase.
Step C. makes automatically controlled piezoelectric ceramics fibre delay line, single-mode fiber is wound on cylinder type piezoelectric ceramics, cylinder type
Piezoelectric ceramics applies variable voltage, by the stroke for controlling the voltage of piezoelectric ceramics to change the superincumbent single-mode fiber of coiling
And refractive index, so that the phase of the microwave signal transmitted in changing optical fiber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710133134.4A CN106887666B (en) | 2017-03-08 | 2017-03-08 | A method of making microwave phase shifter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710133134.4A CN106887666B (en) | 2017-03-08 | 2017-03-08 | A method of making microwave phase shifter |
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| CN106887666B CN106887666B (en) | 2019-04-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114037070A (en) * | 2022-01-07 | 2022-02-11 | 苏州浪潮智能科技有限公司 | Optical signal processing method, photonic neural network chip and design method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981344A (en) * | 2012-12-03 | 2013-03-20 | 东南大学 | Microwave photonic phase shifter based on nonlinear effect |
| US20150035619A1 (en) * | 2013-08-02 | 2015-02-05 | Electronics And Telecommunications Research Institute | Phase shifter and method of shifting phase of signal |
| CN106468834A (en) * | 2016-09-19 | 2017-03-01 | 西安电子科技大学 | Micro-wave light quantum phase shifter based on dual-polarization manipulator |
-
2017
- 2017-03-08 CN CN201710133134.4A patent/CN106887666B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981344A (en) * | 2012-12-03 | 2013-03-20 | 东南大学 | Microwave photonic phase shifter based on nonlinear effect |
| US20150035619A1 (en) * | 2013-08-02 | 2015-02-05 | Electronics And Telecommunications Research Institute | Phase shifter and method of shifting phase of signal |
| CN106468834A (en) * | 2016-09-19 | 2017-03-01 | 西安电子科技大学 | Micro-wave light quantum phase shifter based on dual-polarization manipulator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114037070A (en) * | 2022-01-07 | 2022-02-11 | 苏州浪潮智能科技有限公司 | Optical signal processing method, photonic neural network chip and design method thereof |
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Effective date of registration: 20190304 Address after: No. 101 Tongtian Road, Science Park, Jiangning District, Nanjing City, Jiangsu Province Applicant after: Nanjing Aerospace Industry Technology Co., Ltd. Address before: Room 5, No. 10-1 Xinjingzhong Road, Tang City, Yangshe Town, Zhangjiagang City, Suzhou City, Jiangsu Province Applicant before: Zhangjiagang Ou micro automation R & D Co., Ltd. |
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