Abstract-In this paper, the electri

Abstract-In this paper, the electric voltage of a single-layer homogeneous and anisotropic composite material has been calculated developing a mathematical model based on the diffusion equation . The proposed model has based developed assuming the minimum wavelength of the source much longer than the greatest dimen-sion of the analyzed structures and charge relaxation time of the composite material smaller than any allowable rise time of field source. The finite-differrnce time-domain method,based on an explicit Scheme,has been used to solve the differential equations and a scaling approach has been adopted to reduce computing time.
The obtained results carried have been compared with those obtained simulating an equivalent electrical circuit network using SPICE. A good agreement between these two methods has been ob-served.
Index Terms- Composite material, finite-difference timer-do-main,scaling approach.