Electromagnetic shielding effect of chiral and typical materials

Abstract

In this paper, we present a theoretical study of plane waves in chiral media. We are particularly interested in designing and analyzing chiral devices to quantify their shielding effectiveness as a function of frequency. The typical shielding materials used in this study are copper, aluminium and steel. We have also conducted a comparative study between these different types of materials. Due to chirality, there is magnetoelectric coupling. The electric and magnetic shielding effects are shown to be function of the three material parameters (ε, μ, κ). We found that, at normal incident angle, reflection occurs similar to that of isotropic medium. The cross-polarization effects caused by the chirality appear at oblique wave incidence.