微带线在快速脉冲防护器件性能测试中的应用

摘要

分析了电磁脉冲防护器件性能测试中的关键技术问题,给出了脉冲信号不失真传输的处理方法；基于微带传输线设计,研制了适合快速电磁脉冲防护器件性能测试的专用夹具,利用矢量网络分析仪评价了该测试夹具的传输特性.实验结果表明:在快速脉冲防护器件性能测试中采用微带线进行快速脉冲传输,有效地解决了强电磁脉冲场产生的辐射场及高频反射对测试结果的影响,提高了脉冲信号的传输质量,使测试结果最大程度地体现了防护器件本身的特性.%The key technological problems with these performance tests on EMP protection devices were analyzed. The process method of distortion-free transmission of pulse signals was presented. Based on microstrip designs, the special clamp for performance tests on EMP protection devices was developed. Via Vector Network Analyzer, the transmission characteristics of that clamp were evaluated. The test results indicate that microstrips can be used in the performance tests on EMP protection devices to reduce the influence of high-frequency reflection and radiation field created by strong EMP field and to improve the transmission quality of the pulse signals. It is by using the special clamp that the tests results can better reveal the characteristics of EMP protection devices.