关键词: 柯西法, 多工器, 有理模型, 参数提取

Abstract:

In recent years, multiplexer synthesis and design is a hot topic in the microwave society, and a number of techniques are proposed on this topic. However, the technique for microwave multiplexer diagnosis and tuning is a new challenge. In this paper, a modified Cauchy method is presented to extract the rational model of multiplexers. First, the system matrix is constructed throgh the modified Cauchy method, and then it is solved by using the total least square (TLS) method. All the coefficients of the rational model are obtained at the same time. A triplexer example is used to test the new technique. The extracted parameters agree with the original coefficients well, which shows the validity of the new method presented in this paper.

Key words: Cauchy method, multiplexer, rational models, parameter extraction