CN103063932B - Surface mounting microwave component test tool - Google Patents
Surface mounting microwave component test tool Download PDFInfo
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- CN103063932B CN103063932B CN201210583536.1A CN201210583536A CN103063932B CN 103063932 B CN103063932 B CN 103063932B CN 201210583536 A CN201210583536 A CN 201210583536A CN 103063932 B CN103063932 B CN 103063932B
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Abstract
The invention discloses a surface mounting microwave component test tool. A tested component installing base (6) comprises an installing platform (7), an electric conduction clamping piece (8) and an input and output joint (9), wherein the electric conduction clamping piece (8) is arranged on input and output pins of the tested component in a clamping mode, the electric conduction clamping piece (8) is electrically connected with corresponding input and output joints (9), and the input and output joints (9) are respectively connected to a vector network analyzer (1). A transmitting antenna (11) and a receiving antenna (12) are respectively arranged on an antenna installing base (10), the transmitting antenna (11) is connected with a tested signal transmitting end of the vector network analyzer (1), and the receiving antenna (12) is connected with a test result signal receiving end of the vector network analyzer (1). The surface mounting microwave component test tool is simple in structure, low in design and manufacturing cost, convenient to use, good in tested repeatability, quick in test speed, suitable in batch test, small in measurement error, and high in accuracy and reliability of a tested result.
Description
Technical field
The present invention relates to a kind of surface mount microwave device test fixture.
Background technology
Along with the development of microwave technology, the design of microstrip circuit and system progressively becomes the design and devdlop of transmission line, monolithic integrated microwave circuit and microwave passive circuit, and surface mount is an importance of microwave current device development.Miniaturized surface attachment microwave device series of products mainly comprise power splitter, coupling mechanism, 90 degree of electric bridges etc., meet the demand of the electronic equipments such as radio communication, navigation, radar, have wide market outlook.
A microwave device must through strict performance test before dispatching from the factory or coming into operation, the main testing apparatus of surface mount microwave device is vector network analyzer, by the test of network analyzer, the S parameter of product can be obtained, by changing the every unit for electrical property parameters finally obtaining product.In addition, the test of surface mount microwave device also comprises: for the test of surface mount microwave device, product is surface mount device, does not have the connector of traditional microwave circuit, needs to carry out extra correction and can obtain test data more accurately during test; Product consumption is comparatively large, and must carry out 100% test, traditionally method of testing, testing to be the bottleneck of production run.
There is following problem in existing surface mount microwave device proving installation: (1) complex structure, and Design and manufacture cost is high; (2) position of test antenna is non-adjustable, uses inconvenience, have impact on testing efficiency; (3) parameter measured by vector network analyzer is actually the common parameters of microwave device and fixture itself, therefore, there is larger measuring error; (4) when carrying out test and installing measured device, need to weld, testing efficiency is low; (5) poor repeatability of testing, when especially carrying out phase test.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of structure simple, Design and manufacture cost is low, easy to use, test speed is fast, and testing efficiency is high, degree of accuracy is high and reproducible, is applicable to the surface mount microwave device test fixture of batch testing.
The object of the invention is to be achieved through the following technical solutions: surface mount microwave device test fixture, it comprises proving installation and test fixture, proving installation comprises vector network analyzer and program control computer, and vector network analyzer is connected with program control computer by bus; Test fixture is made up of base, bracing frame and antenna lifting table, and antenna lifting table is fixedly mounted on base by bracing frame;
Measured device mount pad is installed on base, measured device mount pad is made up of erecting bed, conductive clip and input and output joint, conductive clip is clipped on each input and output pin of measured device, conductive clip is its corresponding input and output joint electrical connection respectively, and input and output joint is connected to vector network analyzer respectively;
The lower surface of antenna lifting table is provided with antenna mounting seat, emitting antenna and receiving antenna are installed on antenna mounting seat respectively, emitting antenna is connected with the test signal transmitting terminal of vector network analyzer by microwave cable, and receiving antenna is connected with the test result signal receiving end of vector network analyzer by microwave cable.
Antenna lifting table is provided with lifting knob.Preferably, the top that knob can be arranged at antenna lifting table is elevated.
Preferably, the bus be connected between vector network analyzer and program control computer is general purpose interface bus GPIB.
In microwave device test process, detection calibration face is pushed into the both sides of measured device, according to vector network analyzer full two-port calibration principle, what design and electric bridge matched leads directly to, opens a way, short circuit and load criteria; In order to improve the accuracy of microwave device test, test fixture must adopt HFSS sophisticated design and processing, and extracts equivalent electrical circuit and revise one by one:
(1) be the validity of inspection calibration criterion, careful design also manufactures the check member matched with measured device;
(2) the overall Liftable type movable mountings that adopts ensures test rapidity: as test antenna probe crimp with adopting between measured device, adopt and crimp, all carry out precision correction with HFSS to the factor that test impacts between measured device with cavity;
(3) adopt Precision Machining, ensure the repeatability of test.
The invention has the beneficial effects as follows:
1) structure is simple, and Design and manufacture cost is low;
2) position of test antenna is adjustable, easy to use and improve repeatability and the test speed of test, is applicable to batch testing;
3) parameter measured by vector network analyzer is the performance parameter of microwave device, and measuring error is less;
4) test fixture adopts HFSS sophisticated design and processing, and extracts equivalent electrical circuit and revise one by one it, further increases the accuracy and reliability of test result.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of measured device mount pad and vector network analyzer;
In figure, 1-vector network analyzer, 2-program control computer, 3-base, 4-bracing frame, 5-antenna lifting table, 6-measured device mount pad, 7-erecting bed, 8-conductive clip, 9-input and output joint, 10-antenna mounting seat, 11-emitting antenna, 12-receiving antenna, 13-is elevated knob.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Fig. 1, Fig. 2, surface mount microwave device test fixture, it comprises proving installation and test fixture, and proving installation comprises vector network analyzer 1 and program control computer 2, and vector network analyzer 1 is connected with program control computer 2 by general purpose interface bus gpib bus; Test fixture is made up of base 3, bracing frame 4 and antenna lifting table 5, and antenna lifting table 5 fixedly mounts on the base 3 by bracing frame 4, and antenna lifting table 5 is provided with lifting knob 13, and preferably, the top of antenna lifting table 5 is located at by lifting knob 13.
Measured device mount pad 6 is installed on base 3, measured device mount pad 6 is made up of erecting bed 7, conductive clip 8 and input and output joint 9, conductive clip 8 is clipped on each input and output pin of measured device, conductive clip 8 respectively its corresponding input and output joint 9 is electrically connected, and input and output joint 9 is connected to vector network analyzer 1 respectively;
The lower surface of antenna lifting table 5 is provided with antenna mounting seat 10, emitting antenna 11 and receiving antenna 12 are installed on antenna mounting seat 10 respectively, emitting antenna 11 is connected with the test signal transmitting terminal of vector network analyzer 1 by microwave cable, and receiving antenna 12 is connected with the test result signal receiving end of vector network analyzer 1 by microwave cable.
In microwave device test process, detection calibration face is pushed into the both sides of measured device, according to vector network analyzer full two-port calibration principle, what design and electric bridge matched leads directly to, opens a way, short circuit and load criteria; In order to improve the accuracy of microwave device test, test fixture must adopt HFSS sophisticated design and processing, and extracts equivalent electrical circuit and revise one by one; For checking the validity of calibration criterion, careful design also manufactures the check member matched with measured device; Test antenna probe crimps with adopting between measured device, adopts and crimp between measured device with cavity, all carries out precision correction with HFSS to testing the factor impacted.
Claims (4)
1. surface mount microwave device test fixture, is characterized in that: it comprises proving installation and test fixture, and proving installation comprises vector network analyzer (1) and program control computer (2), and vector network analyzer (1) is connected with program control computer (2) by bus; Test fixture is made up of base (3), bracing frame (4) and antenna lifting table (5), and antenna lifting table (5) is fixedly mounted on base (3) by bracing frame (4);
Measured device mount pad (6) is installed on base (3), measured device mount pad (6) is made up of erecting bed (7), conductive clip (8) and input and output joint (9), conductive clip (8) is clipped on each input and output pin of measured device, conductive clip (8) is its corresponding input and output joint (9) electrical connection respectively, and input and output joint (9) is connected to vector network analyzer (1) respectively;
The lower surface of antenna lifting table (5) is provided with antenna mounting seat (10), emitting antenna (11) and receiving antenna (12) are installed on antenna mounting seat (10) respectively, emitting antenna (11) is connected by the test signal transmitting terminal of microwave cable with vector network analyzer (1), and receiving antenna (12) is connected by the test result signal receiving end of microwave cable with vector network analyzer (1).
2. surface mount microwave device test fixture according to claim 1, is characterized in that: described antenna lifting table (5) is provided with lifting knob (13).
3. surface mount microwave device test fixture according to claim 2, is characterized in that: the top of antenna lifting table (5) is located at by described lifting knob (13).
4. surface mount microwave device test fixture according to claim 1, is characterized in that: described bus is general purpose interface bus GPIB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583536.1A CN103063932B (en) | 2012-12-28 | 2012-12-28 | Surface mounting microwave component test tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210583536.1A CN103063932B (en) | 2012-12-28 | 2012-12-28 | Surface mounting microwave component test tool |
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| CN103063932A CN103063932A (en) | 2013-04-24 |
| CN103063932B true CN103063932B (en) | 2014-12-31 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104316785B (en) * | 2014-10-08 | 2017-03-01 | 中国电子科技集团公司第四十一研究所 | A kind of antenna feeder tester and extension device error correcting method |
| CN105004895B (en) * | 2015-08-25 | 2018-06-29 | 贵州航天计量测试技术研究所 | A kind of surface mount packages microwave device test device |
| CN109738785A (en) * | 2018-12-24 | 2019-05-10 | 贵州航天计量测试技术研究所 | A kind of device and method for microwave chip detection calibration |
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