CN106130667A - Protection device and method, test device for millimeter wave T/R module testing - Google Patents
Protection device and method, test device for millimeter wave T/R module testing Download PDFInfo
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- CN106130667A CN106130667A CN201610700240.1A CN201610700240A CN106130667A CN 106130667 A CN106130667 A CN 106130667A CN 201610700240 A CN201610700240 A CN 201610700240A CN 106130667 A CN106130667 A CN 106130667A
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- millimeter wave
- assembly
- port
- directional coupler
- signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/10—Monitoring; Testing of transmitters
- H04B17/15—Performance testing
- H04B17/16—Test equipment located at the transmitter
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/20—Monitoring; Testing of receivers
- H04B17/29—Performance testing
Abstract
The invention discloses a kind of protection device for millimeter wave T/R module testing and method, test device；Wherein, protection device includes at least one-level directional coupler, and described directional coupler is sequentially connected in series；Wherein, the input of first order directional coupler is connected with the transmitting outfan of millimeter wave T/R assembly, and the outfan of afterbody directional coupler is connected with the first port of circulator；Second port of circulator is connected with load, and the 3rd port of circulator connects and is connected with switching network, and described switching network is connected with millimeter wave T/R module testing instrument；The coupled output ports of described directional coupler also by switching network or is directly connected with millimeter wave T/R module testing instrument；Described switching network is also connected with controller, and described controller is configured to switching network switching provides pulse control signal.
Description
Technical field
The invention belongs to technical field of measurement and test, particularly relate to a kind of protection device for millimeter wave T/R module testing and
Method, test device.
Background technology
Millimeter wave T/R assembly is mainly made up of wave filter, microwave switch, amplifier, circulator etc., it is achieved millimeter wave band
The transmitting-receiving transmission of signal, launches power big, and receiving sensitivity is high, is important microwave and millimeter wave parts in millimeter wave electronic system.
Due to technical sophistication, test parameter kind and quantity are the most, in order to improve production efficiency, in process of production the most all
Use automatic testing scheme to testing.
As shown in Figure 1, computer passes through automatic testing software to the test block diagram that current millimeter wave T/R assembly is tested automatically
Instrument and equipment and switch testing passage are set, level generator are manually set and control the duty of millimeter wave T/R assembly,
The automatic test realizing millimeter wave T/R assembly emission state and receive state performance index.The scheme of Fig. 1 have employed switching system
Radio-frequency channel is switched over, it is achieved emission state and the automatic test receiving state performance index.
The general switching system topological structure used is as shown in Figure 2.Owing to the power of emission state is bigger, the most right
Instrument and equipment causes damage, and therefore, nurses one's health to realize the power of emission state, takes into account the test request of reception state simultaneously,
Use two one and select two switches, set up two passages, an attenuation path, be used for launching signal and export test equipment；One
Put-through channel, when being used for receiving state verification, signal generating apparatus provides source signal for millimeter wave T/R assembly, by which,
Realize Signal separator and the signal condition of emission port.So two ports of millimeter wave T/R assembly can be directly connected to
Signal generating apparatus, spectrum measurement equipment, power test equipment and network parameter test equipment, set up the performance of reiving/transmitting state
Index automatic test passage, it is achieved the purpose of test automatically.
The main manual control level encoder of switching system topological project of Fig. 2, the power amplifier producing millimeter wave T/R assembly adds
Electricity, transmitting-receiving switching and modulated pulse signal so that millimeter wave T/R assembly is under the duties such as transmitting or reception and surveys
Examination.
The most automatically testing scheme is when state controls, and uses manual dial-up mode to produce state control signal, once grasps
Work order changes, and the power amplifier of millimeter wave T/R component internal can be made to be in open-circuit working state, open-circuit working meeting
Cause the total reflection of signal, it will affect the service life of power amplifier or damage power amplifier；Meanwhile, in the program
The mode of emission port Signal separator and signal condition be based on switch solution in the case of normal, but all
It is to have contingency, once two switch cisco unity malfunctions simultaneously, it is more likely that launch signal and directly entered by put-through channel
Test instrunment equipment, causes damage to test instrunment.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention provide a kind of protection device for millimeter wave T/R module testing and
Method, test device.When the present invention solves emission state testing performance index, because of to millimeter wave T/R component operation state control
The operation order difference of system or switching damage, cause the difficult problem burning millimeter wave T/R assembly
For achieving the above object, the present invention is by the following technical solutions:
A kind of protection device for millimeter wave T/R module testing, including at least one-level directional coupler, described orientation coupling
Clutch is sequentially connected in series；Wherein, the transmitting outfan phase of the input of first order directional coupler and millimeter wave T/R assembly
Even, the outfan of afterbody directional coupler is connected with the first port of circulator；Second port of circulator and load phase
Even, the 3rd port of circulator connects and is connected with switching network, described switching network and millimeter wave T/R module testing instrument phase
Even；The coupled output ports of described directional coupler also by switching network or directly connects with millimeter wave T/R module testing instrument
Connect；Described switching network is also connected with controller, and described controller is configured to switching network switching provides pulse control signal.
The present invention utilizes the directivity of circulator and the coupling of at least one-level directional coupler to send out millimeter wave T/R assembly
The signal penetrating passage nurses one's health and distributes, it is to avoid the safety impact to test equipment, has the highest safety.
Described millimeter wave T/R module testing instrument includes that signal generator, frequency spectrum generator, energy meter and vector network divide
Analyzer.
Described controller is connected by pci bus with switching network.
Wherein, controller controls the work schedule of millimeter wave T/R assembly also by pci bus output control pulse.
The controller of the present invention provides pulse control signal by pci bus for the switching of switching network, also to milli
The work schedule of metric wave T/R assembly and pulse period, pulse width and pulse delay are accurately controlled, it is achieved that millimeter
The control sequential of ripple T/R assembly, improves the safety of millimeter wave T/R assembly.
Described switching network is connected with millimeter wave T/R assembly by interface adapter.
Wherein, what interface adapter was configured between offer switching network and millimeter wave T/R assembly mates impedance.
A kind of method of work based on the protection device for millimeter wave T/R module testing, including two kinds of duties, one
Planting is that millimeter wave T/R assembly is in emission state, and another kind is that millimeter wave T/R assembly is in reception state；
When millimeter wave T/R assembly is in emission state, signal generator or vector network analyzer produce signal transmission
Launching input/reception output port to millimeter wave T/R assembly, the output exporting/receive input port launched by millimeter wave T/R assembly
Signal through the coupled output ports of any level directional coupler export a road signal carry out test launch power parameter, launch logical
Road frequency spectrum parameter or transmission channel S parameter, the simultaneously outfan of this grade of directional coupler rear class directional coupler and annular successively
Device is connected to load；
When millimeter wave T/R assembly is in reception state, signal generator or vector network analyzer produce signal and pass through
Switching network input is to circulator, then is injected into the transmission channel of directional coupler by circulator, is sent into by this transmission channel
Millimeter wave T/R assembly carries out testing the reception passage S parameter of millimeter wave T/R assembly or receiving channel frequency spectrum parameter.
When carrying out launching power parameter test, signal generator generation signal is sent to millimeter wave T/R assembly and launches defeated
Entering/receive output port, millimeter wave T/R assembly is launched the output signal of output/reception input port and is oriented coupling through any level
The coupled output ports of clutch exports a road signal and is supplied to energy meter and tests, the outfan of this grade of directional coupler simultaneously
Rear class directional coupler and circulator are connected to load successively.
When carrying out the test of transmission channel frequency spectrum parameter, signal generator generation signal is sent to millimeter wave T/R assembly and sends out
Penetrating input/reception output port, the output signal that output/reception input port launched by millimeter wave T/R assembly is fixed through any level
Export a road signal to the coupled output ports of bonder to be supplied to spectrum analyzer and test, this grade of directional coupler simultaneously
Outfan rear class directional coupler and circulator successively be connected to load.
When carrying out the test of transmission channel S parameter, the first arrow net port of vector network analyzer produces signal and is sent to
Input/reception output port launched by millimeter wave T/R assembly, and the output letter exporting/receive input port launched by millimeter wave T/R assembly
Number exporting a road signal through the coupled output ports of any level directional coupler is supplied to the second arrow of vector network analyzer
Net port is tested, and the outfan of this grade of directional coupler sequentially passes through rear class directional coupler and circulator is connected to simultaneously
Load.
When being received the test of passage S parameter, the second arrow net port of vector network analyzer produces signal and is sent to
3rd port of circulator, the first port output signal of circulator is sent to millimeter wave T/ through at least one-level directional coupler
R assembly receives input/transmitting output port, and the transmitting of millimeter wave T/R assembly is inputted/receives output port and given by switching network
First arrow net port of vector network analyzer is tested.
When being received channel frequency spectrum test, signal generator produces signal and is sent to the 3rd port of circulator, ring
First port output signal of shape device is sent to millimeter wave T/R assembly through at least one-level directional coupler and receives input/transmitting
Output port, millimeter wave T/R assembly is launched input/reception output port and is given spectrum analyzer by switching network and survey
Examination.
A kind of millimeter wave T/R component test device, including the described protection device for millimeter wave T/R module testing.
The invention have the benefit that
(1) with the passageway switching method of conventionally employed switch because of incorrect switching or switch fault bring to test equipment
Safe impulse ratio, utilize the directivity of circulator and the coupling of at least one-level directional coupler that millimeter wave T/R assembly is sent out
The signal penetrating passage nurses one's health and distributes, it is to avoid the safety impact to test equipment, has the highest safety.
(2) present invention provides pulse control signal by the switching of controller switches network, thus controls millimeter wave T/R group
The work schedule of part and pulse period, pulse width and pulse delay are accurately controlled, it is achieved that millimeter wave T/R assembly
Control sequential, improve the safety of millimeter wave T/R assembly.
Accompanying drawing explanation
Fig. 1 is traditional millimeter wave T/R assembly automatic testing equipment block diagram；
Fig. 2 is the switching system topology diagram of traditional millimeter wave T/R assembly automatic testing equipment；
Fig. 3 (a) is that the protection device for millimeter wave T/R module testing of the present invention is carrying out transmitting power parameter test
Time signal flow graph；
Fig. 3 (b) is that the protection device for millimeter wave T/R module testing of the present invention is carrying out transmission channel frequency spectrum parameter
Signal flow graph during test；
Fig. 3 (c) is that the protection device for millimeter wave T/R module testing of the present invention is carrying out transmission channel S parameter survey
Signal flow graph during examination；
Fig. 3 (d) is that the protection device for millimeter wave T/R module testing of the present invention is being received the survey of passage S parameter
Signal flow graph during examination；
Fig. 3 (e) is that the protection device for millimeter wave T/R module testing of the present invention is being received channel frequency spectrum test
Time signal flow graph；
Fig. 4 is controller program timing sequence figure.
Detailed description of the invention
The present invention will be further described with embodiment below in conjunction with the accompanying drawings:
As shown in Fig. 3 (a)-Fig. 3 (e), the invention provides a kind of protection device for millimeter wave T/R module testing,
This device includes at least one-level directional coupler, and described directional coupler is sequentially connected in series；Wherein, first order directional coupler
Input be connected with the transmitting outfan of millimeter wave T/R assembly, the outfan of afterbody directional coupler and circulator
First port is connected；Second port of circulator is connected with load, and the 3rd port of circulator connects and is connected with switching network, institute
State switching network to be connected with millimeter wave T/R module testing instrument；The coupled output ports of described directional coupler is also by switch
Network or be directly connected with millimeter wave T/R module testing instrument；Described switching network is also connected with controller, described controller quilt
It is configured to switching network switching and pulse control signal is provided.
The present invention utilizes the directivity of circulator and the coupling of at least one-level directional coupler to send out millimeter wave T/R assembly
The signal penetrating passage nurses one's health and distributes, it is to avoid the safety impact to test equipment, has the highest safety.
Wherein, millimeter wave T/R module testing instrument includes signal generator, frequency spectrum generator, energy meter and vector network
Analyser.
Switching network is connected with millimeter wave T/R assembly by interface adapter.
Wherein, what interface adapter was configured between offer switching network and millimeter wave T/R assembly mates impedance.
In Fig. 3 (a)-Fig. 3 (e), the first arrow net port of vector network analyzer and second vows net port, is respectively and vows
Net port 1 and arrow net port 2.First port of circulator, the second port and the 3rd port are respectively the port 1 of circulator, end
Mouth 2 and port 3.
Controller is connected by pci bus with switching network.
Wherein, controller controls the work schedule of millimeter wave T/R assembly also by pci bus output control pulse.
The controller of the present invention provides pulse control signal by pci bus for the switching of switching network, also to milli
The work schedule of metric wave T/R assembly and pulse period, pulse width and pulse delay are accurately controlled, it is achieved that millimeter
The control sequential of ripple T/R assembly, improves the safety of millimeter wave T/R assembly.
The controller of the present invention produces the pulse that the multichannel that unlike signal time delay is controlled, pulsewidth is controlled, the cycle is controlled is correlated with
Signal, sequential is as shown in Figure 4, it is to avoid manual operations and cause the error of millimeter wave T/R module testing performance.
Present invention also offers method of work based on the protection device for millimeter wave T/R module testing, including two kinds
Duty, one is that millimeter wave T/R assembly is in emission state, and another kind is that millimeter wave T/R assembly is in reception state；
When millimeter wave T/R assembly is in emission state, signal generator or vector network analyzer produce signal transmission
Launching input/reception output port to millimeter wave T/R assembly, the output exporting/receive input port launched by millimeter wave T/R assembly
Signal through the coupled output ports of any level directional coupler export a road signal carry out test launch power parameter, launch logical
Road frequency spectrum parameter or transmission channel S parameter, the simultaneously outfan of this grade of directional coupler rear class directional coupler and annular successively
Device is connected to load；
When millimeter wave T/R assembly is in reception state, signal generator or vector network analyzer produce signal and pass through
Switching network input is to circulator, then is injected into the transmission channel of directional coupler by circulator, is sent into by this transmission channel
Millimeter wave T/R assembly carries out testing the reception passage S parameter of millimeter wave T/R assembly or receiving channel frequency spectrum parameter.
Present invention utilizes the set direction of directional coupler coupled end and circulator, it is to avoid because of switch misoperation or
Person work the abnormal instrument and equipment caused damage probability, utilize the low-loss of such device transmission passage to achieve simultaneously
The Signal Matching of reception state.
As shown in Fig. 3 (a), when carrying out launching power parameter test, signal generator produces signal and is sent to millimeter wave
Input/reception output port launched by T/R assembly, and the transmitting of millimeter wave T/R assembly exports/receives the output signal of input port and passes through
The coupled output ports of any level directional coupler exports a road signal and is supplied to energy meter and tests, simultaneously this level orientation coupling
The outfan of clutch rear class directional coupler and circulator successively are connected to load.
As shown in Fig. 3 (b), when carrying out the test of transmission channel frequency spectrum parameter, signal generator produces signal and is sent to milli
Input/reception output port launched by metric wave T/R assembly, and the output signal exporting/receive input port launched by millimeter wave T/R assembly
Coupled output ports through any level directional coupler exports a road signal and is supplied to spectrum analyzer and tests, and should simultaneously
Outfan rear class directional coupler and the circulator successively of level directional coupler are connected to load.
As shown in Fig. 3 (c), when carrying out the test of transmission channel S parameter, the first arrow net port of vector network analyzer produces
Raw signal is sent to millimeter wave T/R assembly and launches input/reception output port, millimeter wave T/R assembly transmitting output/receive input
The output signal of port exports a road signal through the coupled output ports of any level directional coupler and is supplied to vector network and divides
Analyzer second arrow net port test, simultaneously the outfan of this grade of directional coupler sequentially pass through rear class directional coupler and
Circulator is connected to load.
As shown in Fig. 3 (d), when being received the test of passage S parameter, the second arrow net port of vector network analyzer produces
Raw signal is sent to the 3rd port of circulator, and the first port output signal of circulator passes through at least one-level directional coupler
Delivering to millimeter wave T/R assembly and receive input/transmitting output port, the transmitting of millimeter wave T/R assembly inputs/receives output port and passes through
Switching network is given the first arrow net port of vector network analyzer and is tested.
As shown in Fig. 3 (e), when being received channel frequency spectrum test, signal generator produces signal and is sent to circulator
The 3rd port, the first port output signal of circulator is sent to millimeter wave T/R assembly through at least one-level directional coupler
Receiving input/transmitting output port, the transmitting of millimeter wave T/R assembly inputs/receives output port and gives frequency spectrum by switching network
Analyser is tested.
Present invention also offers a kind of millimeter wave T/R component test device, survey for millimeter wave T/R assembly including described
The protection device of examination.
The millimeter wave T/R component test device of the present invention utilizes directivity and at least one-level directional coupler of circulator
The signal of millimeter wave T/R assembly transmission channel nursed one's health and distributes by coupling, it is to avoid the safety impact to test equipment,
There is the highest safety, and then improve the accuracy of millimeter wave T/R assembly property parameter testing.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not the present invention is protected model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not
Need to pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (10)
1. the protection device for millimeter wave T/R module testing, it is characterised in that include at least one-level directional coupler,
Described directional coupler is sequentially connected in series；Wherein, the input of first order directional coupler and the transmitting of millimeter wave T/R assembly
Outfan is connected, and the outfan of afterbody directional coupler is connected with the first port of circulator；Second port of circulator
Being connected with load, the 3rd port of circulator connects and is connected with switching network, described switching network and millimeter wave T/R module testing
Instrument is connected；The coupled output ports of described directional coupler is also by switching network or direct and millimeter wave T/R module testing
Instrument connects；Described switching network is also connected with controller, and described controller is configured to switching network switching provides pulse control
Signal processed.
A kind of protection device for millimeter wave T/R module testing, it is characterised in that described milli
Metric wave T/R module testing instrument includes signal generator, frequency spectrum generator, energy meter and vector network analyzer.
A kind of protection device for millimeter wave T/R module testing, it is characterised in that described control
Device processed is connected by pci bus with switching network.
4. a work side based on the protection device for millimeter wave T/R module testing as described in claim 1-3 is arbitrary
Method, it is characterised in that include two kinds of duties, one is that millimeter wave T/R assembly is in emission state, and another kind is millimeter wave
T/R assembly is in reception state；
When millimeter wave T/R assembly is in emission state, signal generator or vector network analyzer produce signal and are sent to milli
Input/reception output port launched by metric wave T/R assembly, and the output signal exporting/receive input port launched by millimeter wave T/R assembly
Coupled output ports through any level directional coupler exports a road signal and carries out test transmitting power parameter, transmission channel frequency
Spectrum parameter or transmission channel S parameter, the outfan of this grade of directional coupler rear class directional coupler successively and circulator are even simultaneously
It is connected to load；
When millimeter wave T/R assembly is in reception state, signal generator or vector network analyzer produce signal through switch
Network input is to circulator, then is injected into the transmission channel of directional coupler by circulator, sends into millimeter by this transmission channel
Ripple T/R assembly carries out testing the reception passage S parameter of millimeter wave T/R assembly or receiving channel frequency spectrum parameter.
5. the method for work of the protection device for millimeter wave T/R module testing as claimed in claim 4, it is characterised in that
When carrying out launching power parameter test, signal generator generation signal is sent to the transmitting of millimeter wave T/R assembly and inputs/receive defeated
Going out port, the output signal coupling through any level directional coupler of output/reception input port launched by millimeter wave T/R assembly
Output port exports a road signal and is supplied to energy meter and tests, and the outfan of this grade of directional coupler rear class successively is fixed simultaneously
It is connected to load to bonder and circulator.
6. the method for work of the protection device for millimeter wave T/R module testing as claimed in claim 4, it is characterised in that
When carrying out the test of transmission channel frequency spectrum parameter, signal generator generation signal is sent to the transmitting of millimeter wave T/R assembly and inputs/connect
Receiving output port, millimeter wave T/R assembly launches the output signal of output/reception input port through any level directional coupler
Coupled output ports exports a road signal and is supplied to spectrum analyzer and tests, and the outfan of this grade of directional coupler depends on simultaneously
Secondary rear class directional coupler and circulator are connected to load.
7. the method for work of the protection device for millimeter wave T/R module testing as claimed in claim 4, it is characterised in that
When carrying out the test of transmission channel S parameter, the first arrow net port of vector network analyzer produces signal and is sent to millimeter wave T/R
Assembly transmitting input/receive output port, millimeter wave T/R assembly launches the output signal of output/reception input port through appointing
The coupled output ports of one-level directional coupler export a road signal be supplied to vector network analyzer second arrow net port enter
Row test, the outfan of this grade of directional coupler sequentially passes through rear class directional coupler and circulator is connected to load simultaneously.
8. the method for work of the protection device for millimeter wave T/R module testing as claimed in claim 4, it is characterised in that
When being received the test of passage S parameter, the second arrow net port of vector network analyzer produces signal and is sent to circulator
3rd port, the first port output signal of circulator is sent to millimeter wave T/R assembly through at least one-level directional coupler and connects
Receiving input/transmitting output port, the transmitting of millimeter wave T/R assembly inputs/receives output port and gives vector net by switching network
First arrow net port of network analyser is tested.
9. the method for work of the protection device for millimeter wave T/R module testing as claimed in claim 4, it is characterised in that
When being received channel frequency spectrum test, signal generator produces signal and is sent to the 3rd port of circulator, the of circulator
Single port output signal is sent to millimeter wave T/R assembly through at least one-level directional coupler and receives input/transmitting output port,
Millimeter wave T/R assembly is launched input/reception output port and is given spectrum analyzer by switching network and test.
10. a millimeter wave T/R component test device, it is characterised in that include as described in claim 1-3 is arbitrary for milli
The protection device of metric wave T/R module testing.
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| CN201610700240.1A CN106130667B (en) | 2016-08-19 | 2016-08-19 | Protective device and method, test device for millimeter wave T/R module testing |
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| CN201610700240.1A CN106130667B (en) | 2016-08-19 | 2016-08-19 | Protective device and method, test device for millimeter wave T/R module testing |
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| CN109188234A (en) * | 2018-09-18 | 2019-01-11 | 中国工程物理研究院应用电子学研究所 | A kind of automation integrated device of the injection of multi-path large power microwave and S parameter measurement |
| CN109188234B (en) * | 2018-09-18 | 2020-12-29 | 中国工程物理研究院应用电子学研究所 | Automatic integrated device for multi-path high-power microwave injection and S parameter measurement |
| CN109459733A (en) * | 2018-10-26 | 2019-03-12 | 中电科仪器仪表有限公司 | Anticollision Radar target velocity simulator, system and method based on pm mode |
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