Time Domain Calculation of UWB Impulse Signal Transmitting through a Finitely Conducting Slab

A simplified closed-form analytic solution for UWB impulse signal transmitting through a finitely conducting slab is proposed in this paper. First of all, a new time domain reflection coefficient is proposed which is proved suitable for common building construction materials of indoor environment, i. e. dry concrete, wood, glass, etc. Secondly, by exploring the relationship between the reflection and refraction on slab surfaces in time domain, an analytic solution is obtained by treating refraction coefficients of both surfaces in one single expression. After developing a simplified time domain expression for propagation loss term, the resulting transient response for the transmitted pulsed field is then easily obtained by time domain convolution. A numerical example of incident monocycle transmitting though a slab using this technique is presented to illustrate the effective use of the method.