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 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 68 Issue: 1
  • Publication Date: 2022
  • Doi Number: 10.3233/jae-210018
  • Journal Name: INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.13-27
  • Keywords: Circular cylinder arc, diffraction, H-polarization, resonance, scattering, SERIES, SCATTERING, CYLINDER
  • Istanbul Technical University Affiliated: Yes

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.