MULTIPLE DIFFRACTION OF OBLIQUELY INCIDENT PLANE-WAVES BY A 3 PART IMPEDANCE PLANE


BUYUKAKSOY A., UZGOREN G.

RADIO SCIENCE, vol.27, no.6, pp.917-927, 1992 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 27 Issue: 6
  • Publication Date: 1992
  • Doi Number: 10.1029/92rs00851
  • Title of Journal : RADIO SCIENCE
  • Page Numbers: pp.917-927

Abstract

Uniform asymptotic high-frequency solution is developed for the diffraction of obliquely incident plane waves by a three-part impedance plane. The multiple interaction up to third order between the edges of the three-part impedance plane is obtained to-yield a uniform scattered field. The employed formulations are based on a spectral iteration techique consisting of taking the Fourier integral representation of the n.tuply diffracted field by one junction as the incident field for the two-part plane where the (n+1)th diffraction will occur. Upon using the field components normal to the three-part surface, the (n+1)th diffracted field is obtained through the solution of a pair uncoupled Wiener-Hopf equations. The contribution of the surface wave fields to the secondary as well as triply diffraction is included in the analysis.