A NOVEL METHOD FOR MEASURING COMPLEX REFLECTION COEFFICIENT USING A FOUR-PORT REFLECTOMETER

作     者：Tian Buning Tang Jiaming Liu Qizhong (institute of Antennas and EMS, Xidian University, Xi’an 71007l) Tian Buning Tang Jiaming Liu Qizhong (institute of Antennas and EMS, Xidian University, Xi’an 71007l)

作者机构：Institute of Antennas and EMS Xidian University Xi’an 

出 版 物：《Journal of Electronics(China)》 (电子科学学刊（英文版）)

年 卷 期：2001年第18卷第4期

页      面：359-362页

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：Reflection coefficient Four-port Reflectometer 

摘      要：A novel method for precise measurement of complex reflection coeffcient using a four-port reflectometer is presented. First, three new complex system constants are introduced,which depend only on the scattering parameters of the four-port reflectometer. Therefore, the stability of the reflectometer is greatly improved. Then, these complex system constants are used to determine the complex reflection coeffcient F of the device under test by calibrating the reflectometer. Finally, a four-port reflectometer comprising a magic tee and a power detector is constructed and excellent experimental results are obtained.