Title :
The use of the transfinite interpolation in the method of moments applied to electromagnetic scattering by dielectric cylinders
Author :
Doncker, Philippe De
Author_Institution :
Fac. des Sci., Univ. Libre de Bruxelles, Belgium
fDate :
5/1/2000 12:00:00 AM
Abstract :
The method of moments (MoM) solution of electromagnetic scattering presents two major numerical difficulties: the number of unknowns and the computation time necessary to calculate the matrix elements. To circumvent these problems, a MoM using the transfinite interpolation and a reduced integration scheme is presented here. The so-called h and p versions of the new method are applied to the scattering of an electromagnetic wave by an infinite dielectric cylinder (TM case) in the Richmond formulation. The transfinite and classical methods are compared in terms of the convergence rates of the radar cross section and of the total electric field inside the dielectric. The results confirm the superiority of the new schemes as predicted by the theory
Keywords :
convergence of numerical methods; dielectric bodies; electromagnetic wave scattering; integration; interpolation; method of moments; radar cross-sections; MoM; Richmond formulation; convergence rates; dielectric cylinders; electromagnetic scattering; matrix elements; method of moments; radar cross section; reduced integration scheme; total electric field; transfinite interpolation; Convergence; Design automation; Dielectrics; Electromagnetic scattering; Finite element methods; Integral equations; Interpolation; Moment methods; Radar scattering; Solid modeling;
Journal_Title :
Antennas and Propagation, IEEE Transactions on