CN103063932A - Surface mounting microwave component test tool - Google Patents
Surface mounting microwave component test tool Download PDFInfo
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- CN103063932A CN103063932A CN2012105835361A CN201210583536A CN103063932A CN 103063932 A CN103063932 A CN 103063932A CN 2012105835361 A CN2012105835361 A CN 2012105835361A CN 201210583536 A CN201210583536 A CN 201210583536A CN 103063932 A CN103063932 A CN 103063932A
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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 design and the application of transmission line, monolithic integrated microwave circuit and microwave passive circuit, and surface mount is an importance of microwave current device development.Miniaturization surface mount microwave device series of products mainly comprise power splitter, coupling mechanism, 90 degree electric bridges etc., satisfy the demand of the electronic equipments such as radio communication, navigation, radar, have wide market outlook.
A microwave device must pass 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, test by network analyzer, can obtain the S parameter of product, by changing the every unit for electrical property parameters that finally obtains 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, need to carry out extra correction during test and can obtain more accurately test data; Product consumption is larger, must carry out 100% test, and according to conventional test methodologies, test will be the bottleneck of production run.
There is following problem in existing surface mount microwave device proving installation: (1) complex structure, and the Design and manufacture cost is high; (2) position of test antenna is non-adjustable, uses inconvenience, has affected testing efficiency; (3) the measured parameter of vector network analyzer is actually the common parameter of microwave device and anchor clamps itself, therefore, has larger measuring error; (4) when testing the installation measured device, need to weld, testing efficiency is low; (5) poor repeatability of test is 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 simple in structure, the Design and manufacture cost is low, easy to use, test speed is fast, and testing efficiency is high, degree of accuracy height and good reproducibility are applicable to the surface mount microwave device test fixture of batch testing.
The objective 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 of base, bracing frame and antenna lifting table, and the antenna lifting table is fixedly mounted on the base by bracing frame;
The measured device mount pad is installed on the base, the measured device mount pad is comprised of erecting bed, conductive clip and input and output joint, conductive clip is clipped on each input and output pin of measured device, the respectively its corresponding input and output joint of conductive clip is electrically connected, and the input and output joint is connected to respectively vector network analyzer;
The lower surface of antenna lifting table is provided with antenna mounting seat, emitting antenna and receiving antenna are installed on respectively on the antenna mounting seat, 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.
The antenna lifting table is provided with the lifting knob.Preferably, the lifting knob can be arranged at the top of antenna lifting table.
Preferably, the bus that is connected between vector network analyzer and the program control computer is general purpose interface bus GPIB.
In the microwave device test process, the detection calibration face is pushed into the both sides of measured device, according to the complete two port calibrating principles of vector network analyzer, that design and electric bridge are complementary is straight-through, open circuit, short circuit and load criteria; In order to improve the accuracy of microwave device test, test fixture must adopt the accurate design of HFSS and processing, and extracts equivalent electrical circuit and revise one by one:
(1) is the validity of check calibration criterion, accurately designs and check part that manufacturing and measured device are complementary;
(2) the whole movable mounting means of Liftable type that adopts guarantees the test rapidity: as adopting crimping between test antenna probe and the measured device, adopt crimping between measured device and the cavity, the factor that test impacts is all carried out precision correction with HFSS;
(3) adopt Precision Machining, guarantee the repeatability of test.
The invention has the beneficial effects as follows:
1) simple in structure, the Design and manufacture cost is low;
2) position of test antenna is adjustable, and is easy to use and improved repeatability and the test speed of test, is applicable to batch testing;
3) the measured parameter of vector network analyzer is the performance parameter of microwave device, and measuring error is less;
4) test fixture adopts the accurate design of HFSS and processing, and extracts equivalent electrical circuit it is revised one by one, has further improved the accuracy and reliability of test result.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of measured device mount pad and vector network analyzer;
Among the 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, the 10-antenna mounting seat, 11-emitting antenna, 12-receiving antenna, 13-lifting 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.
Such as Fig. 1, shown in Figure 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 the general purpose interface bus gpib bus; Test fixture is made of base 3, bracing frame 4 and antenna lifting table 5, and antenna lifting table 5 is fixedly mounted on the base 3 by bracing frame 4, and antenna lifting table 5 is provided with lifting knob 13, and preferably, lifting knob 13 is located at the top of antenna lifting table 5.
Measured device mount pad 6 is installed on the base 3, measured device mount pad 6 is comprised 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 joints 9 are electrically connected, and input and output joint 9 is connected to respectively vector network analyzer 1;
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 respectively on the antenna mounting seat 10, 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 the microwave device test process, the detection calibration face is pushed into the both sides of measured device, according to the complete two port calibrating principles of vector network analyzer, that design and electric bridge are complementary is straight-through, open circuit, short circuit and load criteria; In order to improve the accuracy of microwave device test, test fixture must adopt the accurate design of HFSS and processing, and extracts equivalent electrical circuit and revise one by one; Be the validity of check calibration criterion, accurately design and check part that manufacturing and measured device are complementary; Adopt crimping between test antenna probe and the measured device, adopt crimping between measured device and the cavity, the factor that test impacts is all carried out precision correction with HFSS.
Claims (4)
1. surface mount microwave device test fixture, it 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 of base (3), bracing frame (4) and antenna lifting table (5), and antenna lifting table (5) is fixedly mounted on the base (3) by bracing frame (4);
Measured device mount pad (6) is installed on the base (3), measured device mount pad (6) is comprised 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 respectively vector network analyzer (1);
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 respectively on the antenna mounting seat (10), 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, it 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, it is characterized in that: described lifting knob (13) is located at the top of antenna lifting table (5).
4. surface mount microwave device test fixture according to claim 1, it 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 true CN103063932A (en) | 2013-04-24 |
| CN103063932B CN103063932B (en) | 2014-12-31 |
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| CN201210583536.1A Active CN103063932B (en) | 2012-12-28 | 2012-12-28 | Surface mounting microwave component test tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316785A (en) * | 2014-10-08 | 2015-01-28 | 中国电子科技集团公司第四十一研究所 | Antenna feeder tester and extending device error correction method |
| CN105004895A (en) * | 2015-08-25 | 2015-10-28 | 贵州航天计量测试技术研究所 | Surface-mount package microwave device testing 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316785A (en) * | 2014-10-08 | 2015-01-28 | 中国电子科技集团公司第四十一研究所 | Antenna feeder tester and extending device error correction method |
| 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 |
| CN105004895A (en) * | 2015-08-25 | 2015-10-28 | 贵州航天计量测试技术研究所 | Surface-mount package microwave device testing device |
| 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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| CN103063932B (en) | 2014-12-31 |
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