Microwave heating of buried targets by non-planar Electromagnetic waves

Abstract

In this work, microwave heating of a buried target by a non-planar Electromagnetic (EM) wave source is investigated numerically using the Finite-Difference Time-Domain (FDTD) technique. Such a non-planar wave source is obtained by placing the target in the Fresnel region of a circular aperture representing a parabolic reflector antenna. The Huygen's source equivalence procedure is used to model the fields emanating from such an antenna inside the FDTD lattice. The fields inside and in the neighbourhood of a buried target are calculated for different soil parameters.