Time-domain solution of transmission through multi-modeled obstacles for UWB signals

Abstract

In this work, the time-domain solution for transmission through multi-modeled obstacles has been presented. The transmission through dielectric wedge followed by a dielectric slab has been analyzed. The analytical timedomain transmission and reflection coefficients for transmission through the conductor-dielectric interface, considering oblique incidence, are given for both soft and hard polarizations. The exact frequency-domain formulation for transmitted field at the receiver has been simplified under the condition of low-loss assumption and converted to time-domain formulation using inverse Laplace transform. The time-domain results have been validated with the inverse fast Fourier transform (IFFT) of the corresponding exact frequency-domain results. Further the computational efficiency of both the methods is compared. © Springer International Publishing Switzerland 2014.