Scattering by a right-angled lossy dielectric wedge

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Colleges, School and Institutes


Electromagnetic scattering by a right-angled lossy dielectric wedge at normal incidence is considered in detail. The lossy dielectric material of the wedge is simulated using second-order impedance boundary conditions on its faces. The Maliuzhinets method is employed to obtain the total exterior field. A high-frequency asymptotic approximation of the Sommerfeld integral is carried out to obtain a UTD expression for the total field. The predictions are validated against experimental measurements taken in a controlled laboratory environment. A comparison with the widely used heuristic UTD diffraction coefficient of Luebbers is presented and the validity of the latter coefficient is discussed.

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Copyright 2006 Elsevier B.V., All rights reserved.


Original languageEnglish
Pages (from-to)392-396
Number of pages5
JournalIEE Proceedings - Microwaves, Antennas & Propagation
Issue number5
Publication statusPublished - 1 Jan 1997