微波集成六端口系统优化设计和校准方法  

Optimal Design and Calibration Method of Six-Port System

作　　者：熊祥正[1] 廖成[1] 肖华清[1] 

机构地区：[1]西南交通大学电磁场与微波技术研究所,四川成都610031

出　　处：《西南交通大学学报》2009年第1期20-25,共6页Journal of Southwest Jiaotong University

基　　金：国家自然科学基金资助项目(60441006)

摘　　要：设计了工作于1．7～2．3GHz的新型CMOS六端口系统．根据多个功率点数据，用曲线插值的方法得到电压与功率的关系．并采用CMOS MIC技术测试反射系数．此六端口系统的各测量端口的最大功率差约为8dB；q点（q4，q5和q6）幅值均大于1，在2GHz处相位分布最佳，相位差为97°，133°和130°．元件公差为10％时，系统的性能无明显变化．与矢量网络仪相对照的实验结果表明在整个工作频段内反射系数最大相位和幅值误差分别为3°和0．7dB．A microwave CMOS six-port system working in a frequency range of 1.7 -2.3 GHz was designed. The correlation between voltage and power was determined with polynomial interpolation from power data. The reflecting coefficient of the system was tested with CMOS MIC （ microwave integrated circuit） technique. The maximum difference among the measured ports was about 8 dB, the magnitudes of q points （ q4, q5 and q6 ） were larger than 1, and the phase distribution at 2 GHz was the best, with phase differences of 97°, 133°and 130°. No distinct changes in the system performances were observed with a 10% component tolerance. Compared with the results by a vector network analyzer, the biggest phase and magnitude errors in the operation band were 3°and 0.7 dB, respectively.

关 键 词：六端口系统 CMOS 微波集成电路 设计 校准 

分 类 号：TN405[电子电信—微电子学与固体电子学]