重人式谐振腔法低损耗材料复介电常数测试系统

摘要

A broadband complex permittivity measurement technique of low loss dielectric materials at low microwave frequencies using the reentrant cavity is presented. The testing system is established and several materials are measured by the system. It is proved by the experiment that the presented method is valid. The method features high accuracy, small size and the sample is easy to place.%利用重入式谐振腔针对微波低频段复介电常数测试问题进行了研究,建立了测试系统并对样品进行了测试,验证了该测试方法的可行性.相对于其他同频段的测试方法,其具有体积小、测试精度高、样品放置方便等优点.