Affiliation:
1. MANİSA CELÂL BAYAR ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ
Abstract
In this study, numerical analysis of scattering from a dielectric-coated metallic reflector is presented. The reflector has a parabolic cross-sectional cylindrical geometry. Radiation patterns and aperture efficiency parameters are analyzed using physical optics. A complex source point located at the focal point of the parabolic reflector is used as the source of radiation. The dielectric-coated metallic reflector is considered as an antenna, and an impedance boundary is utilized. The effects of coating on radiation patterns are analyzed in terms of dielectric thickness and dielectric permittivity. Numerical results are presented for various parameters, including dielectric permittivity, dielectric layer thickness, complex source point width, and focal distance.
Publisher
Black Sea Journal of Engineering and Science
Subject
Pulmonary and Respiratory Medicine,Pediatrics, Perinatology, and Child Health
Reference21 articles.
1. Balanis CA. 2016. Antenna theory: analysis and design. John Wiley Sons, New Jersey, USA, 4th ed., pp: 875–920.
2. Bhattacharyya AK. 1995. High-frequency electromagnetic techniques: recent advances and applications. Wiley-Interscience, New York USA, pp: 487.
3. Bie M, Peng M, Jiang ZH, Werner DH. 2023. Modal expansion analysis inverse-design and experimental verification of a broadband high-aperture efficiency circular short backfire antenna loaded with anisotropic impedance surfaces. IEEE Transactions Anten Propag, 71(6): 4783-4798.
4. Bleszynski EH, Bleszynski MK, Jaroszewicz T. 1993. Surface-integral equations for electromagnetic scattering from impenetrable and penetrable sheets. IEEE Antennas Propag Mag, 35(6): 14-25.
5. Chang L, Chen L‐L, Zhang J‐Q, Chen Z‐Z. 2021. A compact wideband dipole antenna with wide beamwidth. IEEE Antennas Wirel Propag Lett, 20(9):1701‐1705.