A NUMERICAL EXAMPLE OF A 2-D SCATTERING PROBLEM USING A SUBGRID

Abstract

In this paper we present a detailed application of a subgridding scheme for the finite difference time domain (FDTD) numerical solution to Maxwell's equations. The subgridding scheme will be necessary for greater detail and for localized calculations when other methods for the subcell modifications of the regular FDTD are not applicable. We have made comparative calculations, as a function of mesh size, of the reflection coefficient and shunt capacitance associated with two invite parallel plates with a finite discontinuity in plate separation. [Vol. 2, No. 2, pp. 75-102 (1987)]