高Q腔法与准光腔法用于毫米波段室温介电性能测试比对研究

摘要

Theory and physical model of high Q cavity method and quasi-optical resonator method used in dielectric properties testing at millimeter wave band was introduced and emulation analyzed.Test setups were built.Tests of cavum and quartz glass were carried out.Result show that quasi-optical resonator method is better than high Q cavity method at quality factor,distinguish frequency point,sample size and testing precision.%介绍了用于毫米波段的介电性能测试的高Q腔法和准光腔法的原理及物理模型,并分别对其进行了仿真分析,建立了相应的测试装置,进行了空腔和石英玻璃的测试.结果表明,准光腔法要比高Q腔法在品质因数、可分辨的频点、样品尺寸、测试精度等方面更有优势.