Electromagnetic plane wave diffraction by a cylindrical arc with edges: H-polarized case


Karaçuha K. , Tabatadze V. , Velıyev E.

INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS, vol.68, no.1, pp.13-27, 2022 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 68 Issue: 1
  • Publication Date: 2022
  • Doi Number: 10.3233/jae-210018
  • Title of Journal : INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS
  • Page Numbers: pp.13-27
  • Keywords: Circular cylinder arc, diffraction, H-polarization, resonance, scattering, SERIES, SCATTERING, CYLINDER

Abstract

An accurate hybrid method (numerical-analytical method) for the diffraction of H-polarized electromagnetic plane wave by perfectly electric conducting cylindrical bodies containing edges and a longitudinal slit aperture is proposed. This method is the combination of the Method of Moment and semi-inversion method. The current density function is expressed as the Chebyshev polynomials forming a complete orthogonal set of basis functions. Then, the initial problem is reduced to a system of linear algebraic equations. After inversion, the unknown coefficients are obtained. Then, near and far-field distributions, radar cross-sections are obtained. The resonances are observed for different values of the aperture size, radius of the arc, and the results are compared with previous outcomes.