Furthermore, the process can be transformed into moment calculations, thus previous methods developed for moments can be taken advantage of. Passivity is guaranteed, and for RC circuits it is possible to choose optimal parameters in the orthonormal functions to obtain fast convergence. This amounts to the optimal choice of finite frequencies for moment matching. Further research is needed to obtain optimal complex parameters in the orthonormal series for general RLC circuits. The approach has been extended to deal with frequency dependent transmission lines by using a Foster RL canonical form.
Experimental results based on industrial examples indicate the method is very attractive.
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