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A general class of passive macromodels for lossy multiconductor transmission lines

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3 Author(s)
A. Dounavis ; Dept. of Electron., Carleton Univ., Ottawa, Ont., Canada ; R. Achar ; M. Nakhla

This paper presents a general class of passive macromodeling algorithm for multiport distributed interconnects. A new theorem is described that specifies sufficient conditions for matrix-rational approximation of exponential functions in order to generate a passive macromodel. A proof is given showing that the currently existing passive matrix-rational approximation of exponential functions is a subclass of the generic approach presented in this paper. In addition, a technique to obtain a compact passive macromodel with predetermined coefficients, based on near-optimal approximation, is presented. The proposed model can be easily incorporated with recently developed passive model-reduction techniques

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IEEE Transactions on Microwave Theory and Techniques  (Volume:49 ,  Issue: 10 )