paper 150202050339

Published: 2015-07-09

Diffraction by Arbitrary-angled Dielectric Wedges: Closed Form High-Frequency Solutions

Giovanni Riccio,

Giovanni Riccio

University of Salerno, Italy

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Marcello Frongillo,

Marcello Frongillo

University of Salerno, Italy

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Gianluca Gennarelli

Institute for the Electromagnetic Sensing of the Environment (IREA), Italy

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Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)964-967

Abstract

Diffraction inside and outside an arbitrary-angled lossless penetrable wedge is con- sidered in this study. Closed form expressions are presented for the diffracted field in the inner region of the wedge and the surrounding space in the case of E-polarized incident plane waves. They are obtained by performing a uniform asymptotic evaluation of the radiation integrals arising from the use of a physical optics approximation for the equivalent electric and magnetic surface currents lying on the inner and outer wedge faces. Good accuracy in the evaluation of the total field, ease of use and implementation in a computer code are the advantages of the proposed solutions, which permit to compensate the geometrical optics discontinuities.

Citation

Giovanni Riccio, Marcello Frongillo, and Gianluca Gennarelli, "Diffraction by Arbitrary-angled Dielectric Wedges: Closed Form High-Frequency Solutions," Proceedings of 2015 Photonics & Electromagnetics Research Symposium, Prague, July 6 - 9，Page(s)964-967

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