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.
| Original language | English |
|---|---|
| Pages (from-to) | 13-27 |
| Number of pages | 15 |
| Journal | International Journal of Applied Electromagnetics and Mechanics |
| Volume | 68 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2022 |
Bibliographical note
Publisher Copyright:© 2022 - IOS Press. All rights reserved.
Funding
The authors of the paper would like to thank the National Center for High-Performance Computing (UHEM) located at Istanbul Technical University for utilization and access. We would like to express our gratitude to Prof. Dr. Ertuğrul Karaçuha. Also, the authors would like to thank Feza Turgay Çelik and Gülfem Ceren Yavuz from Middle East Technical University and Politecnico di Milano for their kind help, respectively. This work is supported in part by Istanbul Technical University (ITU) Vodafone Future Lab under Project No. ITUVF20180901P10.
| Funders | Funder number |
|---|---|
| İTÜ Vodafone Future Lab | ITUVF20180901P10 |
| Istanbul Teknik Üniversitesi |
Keywords
- Circular cylinder arc
- H-polarization
- diffraction
- resonance
- scattering