Thompson-FDTD method for dielectric objects

The Thompson-FDTD method, which combines the differential-Thompson transfor mation involved in hydromechanics with the finite-difference time-domain (F DTD) technique, is introduced to simulate the electromagnetic scattering pr operties of arbitrarily shaped dielectric media in this paper. This method has at least two obvious advantages. First, it is able to transform an arbi trarily shaped body into a regular structure which accurately matches the b oundary conditions; second, the mesh arrangement can be adjusted according to the scatterer's shape to achieve better numerical accuracy. (C ) 2001 Jo hn Wiley & Sons, Inc.