Abstract
In this paper, a new heuristic diffraction coefficient is proposed for dielectric wedges with losses. The suggested diffraction coefficient is based on the uniform theory of diffraction (UTD) and is compared to Luebbers', Holm's and the rigorous diffraction coefficient (RDC). Parallel and perpendicular field polarizations are tested. The new heuristic diffraction coefficient shows clear accuracy improvement over Luebbers' and Holm's coefficients when compared to the RDC. Moreover, the proposed diffraction coefficient is as simple to compute as Luebbers' and Holm's coefficients.
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