Integral-equation study of ray effects and natural-mode resonances in a 2-D dielectric prism

Author

Sukharevsky, Ilya O. ; Altintas, Ayhan

Author_Institution

Commun. & Spectrum Manage. Res. Center, Bilkent Univ., Ankara, Turkey

fYear

2015

fDate

13-17 April 2015

Firstpage

1

Lastpage

4

Abstract

We analyze the interplay of two different types of electromagnetic behavior demonstrated by a 2-D dielectric prism: Geometrical Optics and resonance. As it is shown, the first is responsible, for instance, for enhanced reflection from an isosceles 90-degree prism of arbitrary epsilon and size, if illuminated from the base. The second is responsible for the peaks in the total scattering and absorption cross-sections (RCS) at the natural-mode frequencies. The numerical model is based on Nystrom discretization of Muller-type integral equations that provides guarantied convergence.

Keywords

electromagnetic wave scattering; geometrical optics; integral equations; optical prisms; radar cross-sections; 2D dielectric prism; Muller-type integral equations; Nystrom discretization; RCS; absorption cross sections; electromagnetic behavior; geometrical optics; geometrical resonance; isosceles 90-degree prism; natural mode resonance; radar cross-section; ray effects; total scattering; Dielectrics; Integral equations; Kernel; Resonant frequency; Scattering; Strips; boundary integral equations; dielectric cylinder; natural-mode resonances; radar cross-section;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2015 9th European Conference on

Conference_Location

Lisbon

Type

conf

Filename

7228393