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Volume 33 Issue 4
May  2011
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Yan Xu, Li Yu-Shan, Gao Song, Qu Yong-Zhe, Ding Tong-Hao. A Passive Transmission-line Macromodel Based on the Method of Characteristics[J]. Journal of Electronics & Information Technology, 2011, 33(4): 927-931. doi: 10.3724/SP.J.1146.2010.00685
Citation: Yan Xu, Li Yu-Shan, Gao Song, Qu Yong-Zhe, Ding Tong-Hao. A Passive Transmission-line Macromodel Based on the Method of Characteristics[J]. Journal of Electronics & Information Technology, 2011, 33(4): 927-931. doi: 10.3724/SP.J.1146.2010.00685

A Passive Transmission-line Macromodel Based on the Method of Characteristics

doi: 10.3724/SP.J.1146.2010.00685
  • Received Date: 2010-07-02
  • Rev Recd Date: 2010-10-08
  • Publish Date: 2011-04-19
  • Although the algorithms based on the Method of Characteristics (MoC) can ensure the transmission-line causality, there is no guarantee of passivity of the resulting macromodels. This paper proposes a new perturbation method for the passivity enforcement of MoC-based macromodels. The method generalizes the recently developed method that is introduced for lumped macromodels, which is based on quadratic programming with equality constraint. This associated optimization problem can be solved by the method of Lagrange multipliers. Numerical examples show that the presented method yields accurate passive macromodels in a limited simulation time.
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