A simple technique for solving the problem of an E-polarized plane wave scattered by three objects consisting of two wedges and a cylinder is presented. The method is based on an extension of the Karp and Russek solution for the diffraction by a wide slit, and is applied here to investigate the transmission coefficient through the aperture of a wide double wedge in the presence of a circular dielectric or conducting cylinder whose axis is parallel to the edges of the two wedges. An improvement in the transmission coefficient is observed in the presence of a dielectric cylinder, whereas a conducting cylinder yields a lower transmission coefficient relative to the case when the cylinder is absent.
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ELSHERBENl et al. (1986) studied this question.
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