Time-domain step response fitting

Abstract

In this paper, we introduce an alternative novel technique to approximate step response in time domain based on rational function approximation of admittance. The proposed technique sustains multi-port networks and passive RLC output. An application for this technique, viz., package modeling is presented in this paper. We verify the proposed technique on package measurements. The proposed algorithm has proved its potential to become a main stream tool competent with frequency domain approach for package modeling.