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Microstrip device test system

A test system and device technology, applied in the direction of instruments, measuring electronics, measuring devices, etc., can solve the problems of insertion loss and unsatisfactory standing waves in test results, and achieve the effects of small standing waves, accurate test results, and small insertion loss

Inactive Publication Date: 2015-08-19
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

Due to the mismatch of the two transmission line field types, it will inevitably bring reflections, resulting in unsatisfactory test results for insertion loss and standing waves

Method used

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Examples

Experimental program
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Embodiment Construction

[0030] Now take the use of this system to test a circulator with microstrip transfer as an example to illustrate the use and advantages of this system.

[0031] Such as Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 Shown:

[0032] Vector network analyzer: On the inner conductor of the coaxial cable of the vector network analyzer, open a groove with a depth of 1mm to place the inner conductor of the stripline.

[0033] Fixture: Divided by structure, the fixture is composed of bottom plate, cover plate, medium, inner conductor and fixing screws. Divided by function, consisting of striplines and fixtures; e.g. Figure 7 , Figure 8 , Figure 9 As shown, the stripline consists of an inner conductor, two dielectric sheets, and metal parts in contact with the dielectric, and is located between the cover plate and the bottom plate. Metal extending from either side of the stripline, screw holes, and bar slots form the fixture for attaching to the s...

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Abstract

The present invention relates to the field of electronic communication and microwave technology and particularly relates to a microstrip device test system. The system comprises a bracket base, a clamp and a vector network analyzer. The inner conductor of the coaxial cable of the vector network analyzer is provided with a 1m depth groove for placing a stripline. According to the clamp, the stripline is placed in a fixed device and is connected to the bracket base and the coaxial cable through the fixed device. The bracket base is formed by a fixed base and a height adjusting base. The transfer mode is that the inner conductor of the stripline extends out for 1mm and is inserted into groove on the coaxial line inner conductor of the vector network analyzer, and the inner conductor of the stripline extends out for 1mm and is put to a microstrip line conduction band. The test system has the advantages that the system is applicable to various sizes of devices of a 50ohm microstrip line interface, and the test system has the advantages of small insertion loss, a small standing wave, and accurate test result.

Description

technical field [0001] The invention relates to the fields of electronic communication and microwave technology, in particular to a microstrip device testing system. Background technique [0002] In the past few decades, microwave technology has developed greatly, and the miniaturization degree of microwave devices is getting higher and higher. Therefore, microstrip lines, striplines and the SIW structure being developed are widely used in microwave devices. Among them, devices with microstrip structure are most widely used. For the devices of the other two structures, a microstrip transition section is usually designed to connect with the external structure. These devices are far smaller than traditional waveguide devices and coaxial devices, and are easy to integrate. [0003] However, these devices are generally more difficult to test than waveguide, coaxial devices when using a vector network analyzer. Moreover, it is often necessary to design a test fixture and brac...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 邓龙江黄崇维谢海岩汪晓光陈良梁迪飞陆海涛胡金涛高天乐
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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