Dispersion properties of non-radiating configurations: Finite-Difference Time-Domain modeling
arXiv:physics/0510154 · doi:10.1103/PhysRevE.72.036603
Abstract
A finite-difference time-domain (FDTD) numerical analysis is used to demonstrate that a toroidal solenoid, coaxial with an electric dipole, is a remarkable non-radiating configuration. It can be used to measure the dielectric permittivity of any ambient matter. It becomes a directional radiator at an interface between two dielectric media, depositing energy in the material with the highest polarizability.
15 pages, 8 Figures