Abstract
This paper presents a method for introducing a soft source in the pseudospectral time-domain algorithm. In this method, a scalar weighting term /spl zeta/ is introduced in the total field/scattered field approach in computational electromagnetics. Using our modified version of Maxwell's equations, soft sources can be introduced simply by adding incident terms in the 8-10-cell connecting region between the total field and the scattered field. One-dimensional (1-D) and two-dimensional (2-D) examples of soft source generation and a 2-D scattering study of a dielectric cylinder are given.
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