TIME-DOMAIN SURFACE IMPEDANCES OF LOSSLESS DEBYE MEDIA

In a previous paper; a surface impedance formalism was given. Its appl ication to interfaces modelling between homogeneous and frequency depe ndent media, was of great interest in the finite difference time-domai n (FDTD) codes. In this paper, an extension of the method to dispel si ve media is presented. Applying this formalism to lossless Debye mediu m, the analytical expressions of the time-domain surface impedances ar e given. The implementation in a FDTD code permits then a numerical ve rification of the results in relation to the Fresnel method.