A NEW HYBRID FDTD-BIE APPROACH TO MODEL ELECTROMAGNETIC SCATTERING PROBLEMS

A new hybrid finite-difference time-domain boundary integral equation (FDTD-BIE) method is proposed, The geometry under consideration is dec omposed into several subregions, For some of the bounded subregions th e FDTD technique Is used to construct an interaction matrix, relating virtual electric and magnetic currents at the boundary of the subregio n, for several frequencies at the same time, The remaining bounded and unbounded subregions are described by a boundary integral equation te chnique, An example is given to validate the new technique.