基于谐振法测试微波介质材料的介电参数

摘要

Dielectric permittivity is one of the main performance parameters. For discussing the calculation of dielectric parameters of microwave dielectric material, the model of the resonant method was analyzed and based on resonance method, the system of measuring the dielectric parameters was developed. Measurement results show that measurement value agreed with reference value well. The paper also evaluated the uncertainty of the measurement result. So microwave dielectric material permittivity measurement platform in microwave frequency band was established.%介电常数是介质材料的主要性能参数之一,该文讨论了微波介质的介电参数的理论计算,分析了谐振法的模型,研制了基于谐振法测量微波介质材料介电参数的测量系统.通过对多个样品进行实测,结果表明与参考值比较吻合,评价了该测量系统测量结果不确定度,从而建立了微波频段内微波介质材料介电常数测量平台.