Analysis on Aperture Size for Electromagnetic Scattering by Circular Strips with Impedance Boundary Conditions

Year 2024, Volume: 16 Issue: 1, 28 - 34, 30.06.2024

Kamil Karacuha Vasil Tabatadze

https://doi.org/10.47000/tjmcs.1416248

Abstract

This study investigates how altering the aperture size and impedance characteristics of a circular strip, when excited by a cylindrical wave, influences electromagnetic scattering. The focus is on understanding the impact of shifting the position of an H-polarized line source and adjusting parameters such as strip aperture, wave number, and impedance values on the overall behavior of the electromagnetic field. Our findings reveal that changes in the strip's aperture dimensions or wave number, even when regarding the latter's relation to the source, lead to significant alterations in the surrounding electromagnetic field. This scrutiny unveils a detailed interplay between these factors within this electromagnetic scenario. By examining these intricacies, our study sheds light on the substantial impact of subtle modifications in the strip's dimensions, combined with adjustments in wave and source characteristics, on the electromagnetic field. This understanding holds promise for advancements in diverse engineering applications.

Keywords

analytical-numerical methods, circular strip, diffraction, impedance boundary conditions, line source, scattering

References

• Alparslan, A., Spectral analysis of line sources with complex longitudinal wavenumbers in planarly layered media, IEEE Transactions on Antennas and Propagation, 69(1)(2020), 429–442.
• Dikmen, F., Karaçuha, E., Tuchkin, Y.A., Scalar wave diffraction by a perfectly soft infinitely thin circular ring, Turkish Journal of Electrical Engineering and Computer Sciences, 9(2)(2001), 199–220.
• Doğan, M., Dikmen, F., Alkumru, A., Line source diffraction by perfectly conducting successive steps, Wave Motion, 68(2017), 253–271.
• Erden, F., Tretyakov, O., Cosan, A.A., Inertial properties of the TE waveguide fields, Progress In Electromagnetics Research M, 68(2018), 11–19.
• Gürbüz, T.U., Aslanyürek, B., A Semi-Analytical Method for Electromagnetic Scattering by Infinitely Long Arbitrary Shaped Multilayer Cylinders at Oblique Incidence, IEEE Transactions on Antennas and Propagation, (2023).
• Hacıvelioğlu, F., Uslu, M.A., Sevgi, L., A MATLAB-based virtual tool for the electromagnetic wave scattering from a perfectly reflecting wedge, IEEE Antennas and Propagation Magazine, 53(6)(2011), 234–243.
• Karaçuha, K., Tabatadze, V., Alperen, Ö .F., Veliev, E., A new approach in electromagnetic plane wave diffraction by two concentric slotted cylinders with variably placed slits: E and H polarized cases, IET Microwaves, Antennas, and Propagation, 16(7)(2022), 437–450.
• Koshovy, G.I., Mathematical models of acoustic wave scattering by impedance strip, In 2017 XXIInd IEEE International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (2017),71–74.
• Meixner, J., The behavior of electromagnetic fields at edges, IEEE Trans. Antennas Propag., 20(4)(1972), 442–446.
• Öguzer, T., Kutluay, D., Localized Green’s function using a beam-pattern for the fast modeling of 2D electromagnetic scattering, Journal of Electromagnetic Waves and Applications, 36(18)(2022), 2804–2826.
• Prudnikov, A.P., Brychkov, I.A., Marichev, O.I., Integrals and Series: Special Functions, vol. 2. CRC Press, 1986.
• Richard, L., Nosich, A.I., Daniel, J.P., Surface-impedance model analysis of a coated cylinder with application to wave propagation and conformal antennas, In IET Tenth International Conference on Antennas and Propagation, (1997), 123–125.
• Tabatadze, V., Karaçuha, K., Alperen, Ö .F., Veliev, E., H-polarized plane wave diffraction by a slotted cylinder with different surface impedances: Solution by the analytical—Numerical approach, IET Microwaves, Antennas, and Propagation, 16(14)(2022), 869–879.
• Tabatadze, V., Karaçuha, K., Zaridze, R., Veliyev, E., Karaçuha, E., A fundamental approach: E-polarized electromagnetic wave diffraction by two dimensional arbitrary-shaped objects with impedance boundary condition, Journal of Electrical Engineering, 73(6)(2022), 426–431.
• Tabatadze, V., Karaçuha, K., Zaridze, R., Electromagnetic scattering from 2-D conducting objects with arbitrary smooth shape: Complete mathematical formulation of the method of auxiliary sources for E-polarized case, Progress In Electromagnetics Research M, 114(2022), 117–125.
• Tabatadze, V., Alperen, Ö .F., Karaçuha, K., Electromagnetic scattering of H-polarised cylindrical wave by a double-sided impedance circular strip. IET Microwaves, Antennas and Propagation, (2023).
• Topsakal, E., Büyükaksoy, A., İdemen, M., Scattering of electromagnetic waves by a rectangular impedance cylinder, Wave Motion, 31(3)(2000), 273–296.
• Umul, Y.Z., General expression of the diffracted waves by a half-screen with generalized impedance boundary conditions, Optik, 178(2019), 892–901.
• Vinogradov, S.S., Smith, P.D., Vinogradova, E.D., Canonical problems in scattering and potential theory part II: Acoustic and electromagnetic diffraction by canonical structures, CRC Press, 2002.