Investigation of Dipole Radiation Pattern Above a Chiral Media Using 3D BI-FDTD Approach

Abstract

Here the bi-isotropic finite difference time domain (BI-FDTD) is used to model and predict the radiation pattern of a λ/2 dipole antenna above a chiral media in three dimensions. The distinctive feature of this technique is the use of two independent sets of wavefields representing the left- and right-circularly polarized waves in chiral media. The 3D BI-FDTD simulation results for antenna radiation above a grounded chiral slab and half-space are presented and are compared with available analytical solutions.