J4 ›› 2013, Vol. 40 ›› Issue (3): 201-204.doi: 10.3969/j.issn.1001-2400.2013.03.030

• Original Articles • Previous Articles     Next Articles

Multiplexer rational models extraction based on  the improved Cauchy method

ZHANG Yongliang;SU Tao;WU Bian;LIANG Changhong   

  1. (Science and Technology on Antenna and Microwave Lab., Xidian Univ., Xi'an  710071， China)
  • Received:2012-03-19 Online:2013-06-20 Published:2013-07-29
  • Contact: ZHANG Yongliang E-mail:namarzhang@163.com

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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

CLC Number: 

  • TN001

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