Title :
The bymoment method for two-dimensional electromagnetic scattering
Author :
Cangellaris, Andreas C. ; Lee, Robert
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
fDate :
9/1/1990 12:00:00 AM
Abstract :
The bymoment method is presented for analyzing two-dimensional electromagnetic wave scattering in an unbounded region. The method introduces a conforming surface to geometrically decouple the interior region containing the scatterer from the exterior region extending to infinity. The solution in the interior is generated using the standard finite-element solution of an interior Dirichlet boundary-value problem. The interior solution is then coupled to the exterior using Green´s theorem in the unbounded exterior region. The validity of the method and the associated computer program is demonstrated by comparing the results to those of other methods for scattering by various cylindrical geometries
Keywords :
boundary-value problems; electromagnetic wave scattering; finite element analysis; Green´s theorem; bymoment method; conforming surface; cylindrical geometries; electromagnetic wave scattering; exterior region; finite-element solution; interior Dirichlet boundary-value problem; interior region; two dimensional scattering; unbounded region; Application software; Computational geometry; Electromagnetic analysis; Electromagnetic scattering; Finite element methods; H infinity control; Helium; Integral equations; Sparse matrices; Symmetric matrices;
Journal_Title :
Antennas and Propagation, IEEE Transactions on