Integral-Equation Study of Ray Effects and Natural-Mode Resonances in a 2-D Dielectric Prism


Sukharevsky I. O. , ALTINTAŞ A.

9th European Conference on Antennas and Propagation EuCAP, Lisbon, Portekiz, 13 - 17 May 2015

  • Basıldığı Şehir: Lisbon
  • Basıldığı Ülke: Portekiz

Özet

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.