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In an analytical-numerical technique was described for the solution of the two-dimensional electromagnetic plane-wave scattering by a finite set of parallel perfectly-conducting circular cylinders, with possibly different radii and arbitrarily placed, buried in a dielectric half-space. The diffracted field was represented in terms of a superposition of cylindrical waves, and use was made of the plane-wave spectrum to take into account the reflection and transmission of such waves by the interface.The problem of numerically evaluating oscillating integrals has been often addressed in the literature. Suitable algorithms have been developed for the evaluation of the spectral integrals of the reflected and transmitted cylindrical waves.
Date of Publication: Oct. 2009