CN201637845U - Signal transfer center of phased array radar microwave module based on GPIB interface control - Google Patents
Signal transfer center of phased array radar microwave module based on GPIB interface control Download PDFInfo
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- CN201637845U CN201637845U CN2010201031432U CN201020103143U CN201637845U CN 201637845 U CN201637845 U CN 201637845U CN 2010201031432 U CN2010201031432 U CN 2010201031432U CN 201020103143 U CN201020103143 U CN 201020103143U CN 201637845 U CN201637845 U CN 201637845U
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Abstract
The utility model discloses a signal transfer center of a phased array radar microwave module based on GPIB interface control, which comprises a source-end switch network module, a transmission switch module, a signal separating module, a power-supply polarity converting module, an attenuation module, a testing-end switch network module and a control module. The advantages are as follows: the signal transfer center can transfer a lot of types of instruments and can test a lot of indicators and items; the measuring frequency range is wide; the power range is wide; the distortion of the signal transfer is small; a directional coupler is arranged in the product, so as to ensure accuracy of high-power S parameter measurement in frequency range.
Description
Technical field
The utility model relates to a kind of signal converting maincenter, in particular for the signal converting maincenter of phased-array radar microwave module, and specifically a kind of phased-array radar microwave module signal converting maincenter based on the control of GPIB mouth.
Background technology
At present all be based on manually method for the test of phased-array radar microwave module and maintenance, because the phased-array radar microwave module is of a great variety, the port complexity, thereby manual testing and maintenance be a complexity and loaded down with trivial details work, and need certain professional knowledge and technical ability.Prior art can't realize simply, tests easily and keep in repair, different test signal to product can't connect intuitively, can't finish test channel foundation, signal adjustment, signals collecting and sampling according to corresponding testing software, test port is adaptive and measured piece power distribution etc., can not satisfy the needs of prior art.Therefore, it is very necessary introducing automatic measurement module.
Summary of the invention
The purpose of this utility model is can't realize simply at existing radar microwave module, the problem of testing easily and keeping in repair, a kind of can the switching to different test signals proposed, the test port of test and excitation signal and testing tool all is connected to the signal converting maincenter, the input of measured piece, output port also is connected to this equipment, finishing test channel according to corresponding testing software sets up, signal is adjusted, signals collecting and sampling, functions such as the adaptive and measured piece power distribution of test port, can not need the user to carry out other connection like this, just can test whole performance parameters, satisfy phased-array radar microwave module test request, realize the phased-array radar microwave module signal converting maincenter of measuring automatically based on the control of GPIB mouth.
The technical solution of the utility model is:
A kind of phased-array radar microwave module signal converting maincenter based on the control of GPIB mouth, it comprises source end switch mixed-media network modules mixed-media, transmitting switch module, signal separation module, electric power polarity modular converter, attenuation module, test lead switching network module and control module
Source end switch mixed-media network modules mixed-media: the signal input part of source end switch mixed-media network modules mixed-media receives each source signal as the source signal input of switching maincenter, comprise and vow net source, signal source and noise source, source end switch mixed-media network modules mixed-media is provided with the small-signal output terminal, the 3rd pumping signal output terminal and composite signal output terminal, the composite signal output terminal is connected with the signal input part of transmitting switch module, it also is provided with the extended source signal input part, and the extended source signal is exported as second pumping signal;
The transmitting switch module: the signal input part of transmitting switch module receives modulation signal as the input of switching maincenter, its another signal input part is connected with the composite signal output terminal of source end switch mixed-media network modules mixed-media, the signal output part of transmitting switch module is connected with the signal input part of signal separation module, and the pumping signal output terminal of transmitting switch module is exported first pumping signal as the output terminal of switching maincenter;
Signal separation module: signal separation module signal input part link to each other with the signal output part of transmitting switch module, signal separation module is provided with the output terminal output of three signal output parts as the switching maincenter, the first is exported the 4th pumping signal, it two is to be connected with vowing net receiver R1, and it three is to be connected with arrow net receiver A;
The electric power polarity modular converter: be provided with the input of four testing power supply signal input parts as the switching maincenter, its testing power supply output terminal is as the power supply output of switching maincenter, and it is the large power supply input end also, and the large power supply input is exported as large power supply;
Attenuation module, test lead switching network module: attenuation module is provided with two test signal input ends, its output terminal links to each other with the signal input part of test lead switching network module, and the test source signal output part of test lead switching network module is as the output terminal output test source signal of switching maincenter;
Control module: each control signal end of control module links to each other with each control signal end of corresponding source end switch mixed-media network modules mixed-media, transmitting switch module, signal separation module, electric power polarity modular converter, attenuation module, test lead switching network module, and control module is connected with the main control computing machine by general purpose interface bus GPIB.
The beneficial effects of the utility model:
The utility model can be transferred to different test signals, and according to corresponding testing software finish test channel foundation, signal adjustment, signals collecting and sampling, test port is adaptive and function such as measured piece power distribution, to satisfy the test request of phased-array radar microwave module, realize measuring automatically.
A). communication function: control module adopts GPIB (General-Purpose Interface Bus)-general purpose interface bus communication, can realize the intelligence of product is controlled by the main control computing machine.
B). excitation channel signal signaling transfer point: can be according to the test request of measured piece, different test items are selected different pumping signals, finish the output of pumping signal.
C). test channel signal is adjusted function: can select suitable measurement passage to satisfy the test condition of different instruments according to the size of test signal.
D). electric power polarity translation function: can carry out the conversion of polarity to the small-power power output voltage, to satisfy the demand of different measured pieces to power supply.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model source end switch mixed-media network modules mixed-media.
Fig. 3 is the structural representation of the utility model transmitting switch module.
Fig. 4 is the structural representation of the utility model signal separation module.
Fig. 5 is the structural representation of the utility model electric power polarity modular converter.
Fig. 6 is the structural representation of the utility model attenuation module.
Fig. 7 is the structural representation of the utility model test lead switching network module.
Fig. 8 is the structural representation of the utility model control module.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, a kind of phased-array radar microwave module signal converting maincenter based on the control of GPIB mouth is characterized in that it comprises source end switch mixed-media network modules mixed-media, transmitting switch module, signal separation module, electric power polarity modular converter, attenuation module, test lead switching network module and control module.
Source end switch mixed-media network modules mixed-media: the signal input part of source end switch mixed-media network modules mixed-media receives each source signal as the source signal input of switching maincenter, comprise and vow net source, signal source and noise source, source end switch mixed-media network modules mixed-media is provided with small-signal output terminal, the 3rd pumping signal output terminal and composite signal output terminal, the composite signal output terminal is connected with the signal input part of transmitting switch module, it also is provided with the extended source signal input part, be beneficial to the expansion of system, the power of test of elevator system, the extended source signal is exported as second pumping signal; As shown in Figure 2, network based radar microwave module characteristic of source end switch and test request, four passages have been designed, wherein the composite signal of small-signal output terminal outputs to the outside, modulate and amplify (input end that is input to the transmitting switch module again) and realize powerful test, its excess-three passage connects small-signal respectively, realizes low power test.End switch network utilisation four microwave switches in source are combined into switching network, three signal sources to system disposition (vow that the net source is that vector network analyzer, noise source are noise signal source, signal source is a synthesized signal generator) carry out signal allocation, make four test ports of system select different signal source output according to the test needs.
The transmitting switch module: the signal input part of transmitting switch module receives modulation signal as the input of switching maincenter, its another signal input part is connected with the composite signal output terminal of source end switch mixed-media network modules mixed-media, the signal output part of transmitting switch module is connected with the signal input part of signal separation module, and the pumping signal output terminal of transmitting switch module is exported first pumping signal as the output terminal of switching maincenter; As shown in Figure 3, transmitting switch is to utilize the two switch switching modes various to signal of putting of double-pole, according to the test needs the high-power pumping signal and the miniwatt pumping signal of outside power amplifier input is distributed, is switched to satisfy the test needs.
Signal separation module: signal separation module signal input part link to each other with the signal output part of transmitting switch module, signal separation module is provided with the output terminal output of three signal output parts as the switching maincenter, the first is exported the 4th pumping signal, it two is to be connected with vowing net receiver R1, and it three is to be connected with arrow net receiver A; As shown in Figure 4, signal separation module is to utilize the directionality of directional coupler to isolate the forward coupled signal and the reverse coupled signal of signal transmission, is used for the S parameter testing of power amplifier class high power module.Because the wide frequency range of system, so select for use two different frequency range directional couplers (778D of Agilent company and 11692D) and four microwave switches to be combined into signal separator, utilize switch combination to switch different directional couplers, to satisfy the requirement of test frequency range in different frequency ranges.
The electric power polarity modular converter: be provided with the input of four testing power supply signal input parts as the switching maincenter, its testing power supply output terminal is as the power supply output of switching maincenter, and it is the large power supply input end also, and the large power supply input is exported as large power supply; As shown in Figure 5, the electric power polarity modular converter is to utilize the switch on and off function of relay that the small-power power output voltage is carried out polar switching, to satisfy the demand of different measured pieces to power supply.
Attenuation module, test lead switching network module: attenuation module is provided with two test signal input ends, its output terminal links to each other with the signal input part of test lead switching network module, and the test source signal output part of test lead switching network module is as the output terminal output test source signal of switching maincenter; As shown in Figure 6, attenuation module is the various combination formation by seven microwave switches and five attenuators, has both prevented that high-power signal from damaging testing tool, satisfies the dynamic range of various testing tools again, guarantees the accuracy of testing.Attenuating device can be built through path, 20dB decay path, 30dB decay path, four kinds of paths of 50dB decay path, because the wide frequency range of system, power input is big, so divide two-way different inputs, input 1:10MHz～4GHz frequency range test signal input, maximum is born power=2500W (pulse power, dutycycle 10%).Input 2:10MHz～12.4GHz frequency range test signal input, maximum is born power=5W.As shown in Figure 7, test lead switching network module can be selected corresponding testing tool according to the different test event of measured piece.
Control module: each control signal end of control module links to each other with each control signal end of corresponding source end switch mixed-media network modules mixed-media, transmitting switch module, signal separation module, electric power polarity modular converter, attenuation module, test lead switching network module, and control module is connected with the main control computing machine by general purpose interface bus GPIB.Control module receives the steering order of main control computer, and microwave switch system and power distribution and polar switching device are controlled, and this device also provides the state of switch to computing machine simultaneously, guarantees the safety of system, prevents that maloperation from damaging system or measured piece.Control module adopts 51 series monolithics to make the master control chip, and adopts CPLD expansion control port number, and device adopts gpib bus and main control computer communication.Control device can also be monitored the switch number of times of each switch except basic control function and communication function.
The utility model is provided with power module, and power module provides signal converting maincenter working power, and output high precision, low ripple voltage also have good Electro Magnetic Compatibility, comprise EMC wave filter and switching power supply.
The switchable instrument kind of the utility model is many, and testable index project is many; The survey frequency wide ranges, power bracket is big, and the signal converting distortion is little; Product is built-in two directional couplers have guaranteed the accuracy of high power S parameter measurement in the frequency range.
Claims (1)
1. phased-array radar microwave module signal converting maincenter based on GPIB mouth control, it is characterized in that it comprises source end switch mixed-media network modules mixed-media, transmitting switch module, signal separation module, electric power polarity modular converter, attenuation module, test lead switching network module and control module
Source end switch mixed-media network modules mixed-media: the signal input part of source end switch mixed-media network modules mixed-media receives each source signal as the source signal input of switching maincenter, comprise and vow net source, signal source and noise source, source end switch mixed-media network modules mixed-media is provided with the small-signal output terminal, the 3rd pumping signal output terminal and composite signal output terminal, the composite signal output terminal is connected with the signal input part of transmitting switch module, it also is provided with the extended source signal input part, and the extended source signal is exported as second pumping signal;
The transmitting switch module: the signal input part of transmitting switch module receives modulation signal as the input of switching maincenter, its another signal input part is connected with the composite signal output terminal of source end switch mixed-media network modules mixed-media, the signal output part of transmitting switch module is connected with the signal input part of signal separation module, and the pumping signal output terminal of transmitting switch module is exported first pumping signal as the output terminal of switching maincenter;
Signal separation module: signal separation module signal input part link to each other with the signal output part of transmitting switch module, signal separation module is provided with the output terminal output of three signal output parts as the switching maincenter, the first is exported the 4th pumping signal, it two is to be connected with vowing net receiver R1, and it three is to be connected with arrow net receiver A;
The electric power polarity modular converter: be provided with the input of four testing power supply signal input parts as the switching maincenter, its testing power supply output terminal is as the power supply output of switching maincenter, and it is the large power supply input end also, and the large power supply input is exported as large power supply;
Attenuation module, test lead switching network module: attenuation module is provided with two test signal input ends, its output terminal links to each other with the signal input part of test lead switching network module, and the test source signal output part of test lead switching network module is as the output terminal output test source signal of switching maincenter;
Control module: each control signal end of control module links to each other with each control signal end of corresponding source end switch mixed-media network modules mixed-media, transmitting switch module, signal separation module, electric power polarity modular converter, attenuation module, test lead switching network module, and control module is connected with the main control computing machine by general purpose interface bus GPIB.
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| CN2010201031432U CN201637845U (en) | 2010-01-28 | 2010-01-28 | Signal transfer center of phased array radar microwave module based on GPIB interface control |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565544A (en) * | 2011-12-29 | 2012-07-11 | 姜茂仁 | High-frequency signal transfer controller for integrated test system of avionic device |
| CN103916154A (en) * | 2012-12-28 | 2014-07-09 | 国际商业机器公司 | Scalable Polarimetric Phased Array Transceiver |
-
2010
- 2010-01-28 CN CN2010201031432U patent/CN201637845U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565544A (en) * | 2011-12-29 | 2012-07-11 | 姜茂仁 | High-frequency signal transfer controller for integrated test system of avionic device |
| CN103916154A (en) * | 2012-12-28 | 2014-07-09 | 国际商业机器公司 | Scalable Polarimetric Phased Array Transceiver |
| US9191057B2 (en) | 2012-12-28 | 2015-11-17 | International Business Machines Corporation | Scalable polarimetric phased array transceiver |
| CN103916154B (en) * | 2012-12-28 | 2016-03-23 | 国际商业机器公司 | Extendible polarization measurement phase array transceiver |
| US10416283B2 (en) | 2012-12-28 | 2019-09-17 | International Business Machines Corporation | Scalable polarimetric phased array transceiver |
| US10983192B2 (en) | 2012-12-28 | 2021-04-20 | International Business Machines Corporation | Scalable polarimetric phased array transceiver |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101117 |