Transient analysis of electromagnetic wave reflection from a stratified medium

During recent years, we have been developing an efficient time domain technique based on numerical inversion of Laplace transform (NILT), for modelling pulse reflection from a lossy or dispersive dielectric half space and pulse propagation in a dispersive medium. In this paper, this technique is extended and applied to transient analysis of electromagnetic pulses reflected from a layered medium, with a simple algorithm, low computation cost, good accuracy and physical interpretation. The correctness and effectiveness of this work are confirmed by comparing our results with those published in the literature.