PLANE-WAVE DIFFRACTION BY A 2-PART IMPEDANCE STRIP


ERDOGAN E., BUYUKAKSOY A., BICAKCI O.

IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY, vol.141, no.5, pp.383-390, 1994 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 141 Issue: 5
  • Publication Date: 1994
  • Doi Number: 10.1049/ip-smt:19941067
  • Title of Journal : IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY
  • Page Numbers: pp.383-390

Abstract

A uniform asymptotic high-frequency solution Is developed for the diffraction of (E-polarised) electromagnetic plane waves by a two-part impedance strip. Uniform expressions for the interactions up to third order between the edges of the strip, including the conversion of surface-wave fields into space-wave fields, and vice-versa, via edge or junction diffraction, are obtained. The solution is based on a spectral iteration technique consisting of taking the spectral representation of the n-tuply diffracted field by one edge as the incident field for a half-plane (or a two-part plane) associated with the other edge (or junction) where the (n + 1)th diffraction will take place. The analysis is then performed through the Wiener-Hopf technique for the (n + 1)th diffraction. Bistatic diffraction patterns are obtained for different values of the surface impedances of the strip.