测量糊状物质复介电常数的级联网络分解法  

A Cascade Network Decomposition Method for Measuring the Complex Dielectric Constant of Mushy Materials

作　　者：郭利强[1] 焦永昌[1] 唐家明[1] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室

出　　处：《微波学报》2007年第1期34-38,43,共6页Journal of Microwaves

基　　金：国家自然科学基金资助项目(60371014);青岛市科技局配套资助项目

摘　　要：提出了测量糊状物质复介电常数的级联网络分解法。先采用标量检测矢量变换法测出三个网络的散射参数,再用两种分解计算法求得糊状物样品的散射参数,最后用奇偶模法求得复介电常数。文中给出了三种糊状物的测试结果及误差分析结果。文中提出的方法也可用于测试粉末状材料、薄板材以及材料的高温测试及低温测试。A cascade network decomposition method for measuring the complex dielectric constant of mushy materials is proposed. First, the scattering parameters of the cascade network are found by the vector transformation with scalar measurement, then the scattering parameters of the mushy material are derived by two kinds of decomposition method, and its complex dielectric constant is calculated by using the odd-even mode method. Measurement results and their error analysis for three kinds of mushy materials are also presented. The proposed method is applicable to measure the materials in powder, in shell, or under high and low temperature conditions.

关 键 词：多状态反射计 糊状材料 复介电常数 级联网络 分解 

分 类 号：TM931[电气工程—电力电子与电力传动]