Line source diffraction by double strips with different fractional boundary conditions

Article type: Research Article

Authors: Karaçuha, Kamil^a; | Tabatadze, Vasil^{a; b; c} | Veliyev, Eldar Ismailovich^{a; d}

Affiliations: [a] Informatics Institute, Istanbul Technical University, Istanbul, Turkey | [b] Tbilisi State University, Tbilisi, Georgia | [c] Samtskhe-Javaxethi State University, Akhaltsikhe, Georgia | [d] National Technical University, Kharkiv Polytechnic Institute, Kharkiv, Ukraine

Correspondence: [*] Corresponding author: Kamil Karaçuha, Informatics Institute, Istanbul Technical University, Istanbul, Turkey. Tel.: +90 505 283 55 56; E-mails: kamoka.eee@gmail.com, karacuha17@itu.edu.tr. ORCIDs: https://orcid.org/0000-0002-0609-5085 (K. Karaçuha); https://orcid.org/0000-0003-4350-3196 (V. Tabatadze); https://orcid.org/0000-0003-3923-2901 (Eldar I. Veliyev)

Abstract: In this study, the cylindrical wave diffraction by double strips with different lengths and boundary conditions are investigated. The scattered fields are found by the Numerical-Analytical Approach. The double-strip structure satisfies integral boundary conditions which are the generalization of Dirichlet and Neumann boundary conditions. The electric field, current distribution, and Total Radar Cross Sections are investigated. The results are compared with other methods and previous findings such as the Method of Moments and Physical Optics. The theoretical and numerical analyses indicate that the fractional order, the position of the line source have tremendous effects on the total-field distributions.

Keywords: Electromagnetic diffraction, fractional boundary condition, fractional double strips, integral boundary condition, line source

DOI: 10.3233/JAE-210006

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 67, no. 2, pp. 165-181, 2021