Scattering by a Chiral Cylinder of Arbitrary Cross Section above a Dielectric Half-Space

Sajjad H., Altaf A., Ozzaim C., Arvas E.

IEEE Antennas and Wireless Propagation Letters, vol.20, no.5, pp.778-782, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 5
  • Publication Date: 2021
  • Doi Number: 10.1109/lawp.2021.3063119
  • Journal Name: IEEE Antennas and Wireless Propagation Letters
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.778-782
  • Keywords: Strips, Method of moments, Dielectrics, Optical surface waves, Electromagnetic scattering, Surface waves, Perturbation methods, Chiral materials, dielectric half-space, electric field integral equation (EFIE), electromagnetic scattering, method of moments (MoM), perturbation method, surface equivalence
  • Istanbul Medipol University Affiliated: Yes

Abstract

A simple numerical solution for electromagnetic scattering from a 2-D homogeneous chiral cylinder of arbitrary cross section placed above a dielectric half-space (DHS) is presented. A modified surface equivalence principle is used to obtain coupled electric field integral equations. For feasible application of method of moments, a perturbation method is used where a strip of finite width approximates the surface of the infinite half-space. The perturbed currents on the interface are expressed as a difference of the currents with the cylinder present and the exact solution (cylinder removed). The excitation vector now contains the reflected field from the DHS in addition to the incident field. Transverse magnetic (TM) and transverse electric (TE) excitations are treated. Computed results include perturbed currents on the dielectric interface and the scattered fields. Excellent agreement is observed for special cases available in the literature.