The plane wave diffraction problem involving a 90° coated metallic wedge is addressed in the high-frequency framework when the incidence direction is orthogonal to the edge. The uniform asymptotic physical optics approach is applied to solve the problem in the context of the uniform geometrical theory of diffraction. The corresponding solutions for both polarizations of the incident electric field are approximate, easy to use, and supplies reliable results as validated by comparisons with a recognized commercial software. The novelty of the paper relies on the use of the proposed approach to study the interaction of plane waves with double negative metamaterials covering a 90° metallic wedge. The approach is also applied to standard double positive layers for completeness.
Diffraction by a Right-Angled Metallic Wedge with Coating: the UAPO Solution for Normal Incidence
Riccio G.;Gennarelli G.;Ferrara F.;Gennarelli C.;Guerriero R.
2022-01-01
Abstract
The plane wave diffraction problem involving a 90° coated metallic wedge is addressed in the high-frequency framework when the incidence direction is orthogonal to the edge. The uniform asymptotic physical optics approach is applied to solve the problem in the context of the uniform geometrical theory of diffraction. The corresponding solutions for both polarizations of the incident electric field are approximate, easy to use, and supplies reliable results as validated by comparisons with a recognized commercial software. The novelty of the paper relies on the use of the proposed approach to study the interaction of plane waves with double negative metamaterials covering a 90° metallic wedge. The approach is also applied to standard double positive layers for completeness.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
