Polarization conversion in chiral layers with periodically arranged metallic helices

Article type: Research Article

Authors: Raghavendra, S.C.^a | Khan, Iqbal Ahmed^a | Raibagkar, R.L.^a | Kulkarni, A.B.^{a; *}

Affiliations: [a] Department of Applied Electronics, Gulbarga University, Gulbarga -- 585 106, India

Correspondence: [*] E-mail: kulkarniab1@rediffmail.com

Abstract: The polarization properties of periodically arranged metallic helices are investigated. The chiral layers have been synthesized by embedding right handed or left handed metallic helices arranged periodically in a dielectric matrix of thermocol (polystyrene foam), a low loss dielectric material. The chiral layers are loaded at the aperture of the transmitting rectangular waveguide horn antenna. The polarization pattern of the transmitted signal (TE_{10} mode) indicates rotation of plane of polarization and partial conversion into either right circular polarization (RCP) or left circular polarization (LCP).

Keywords: chiral materials, polarization (RCP/LCP)

DOI: 10.3233/JAE-2000-209

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 12, no. 3-4, pp. 229-234, 2000