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对谐振腔微扰法测试单晶电介质微波复介电常数进行了分析。采用研制的ＴＥ＿（１０ｎ）。模矩形谐振腔，利用标量网络分析系统与微机联网，在液氮温度和常温下对电介质材料进行了实测，结果表明：该测试技术可对常用微波介质材料在不同温度（如液氮、液氦及常温）下进行测试，且测试简便、迅速、自动化程度高，并且有测试材料某一方向复介电常数的优点。
The microwave dielectric constant of single crystal dielectric was analyzed by using cavity perturbation method. Using developed TE_ (10n). Mode rectangular resonant cavity. The scalar network analysis system is connected with the microcomputer to measure the dielectric material at liquid nitrogen temperature and normal temperature. The results show that the dielectric constant of the microwave dielectric material can be measured at different temperatures (such as liquid nitrogen, liquid helium And room temperature) test, and the test is simple, rapid, high degree of automation, and the test material in one direction complex permittivity advantages.