Title :
FEM-ABC and MFCM techniques applied to the solution of 2D scattering problems
Author :
Vasconcelos, João A. ; Lomsnaco, A.G. ; Saldanha, Rodney R. ; Ramírez, Jaime A.
Author_Institution :
Dept. de Engenharia Eletrica, Univ. Fed. de Minas Gerais, Belo Horizonte, Brazil
fDate :
7/1/2000 12:00:00 AM
Abstract :
The problem of solving open 2D scattering problems using the finite element method (FEM) and the multi-filament current method (MFCM) is addressed in this paper. The second order absorbing boundary condition of Bayliss-Turkel, for noncircular boundaries, and the filament positioning problem in MFCM are investigated. Two problems defined by two perfect cylindric dielectric bodies, with circular and square cross section, illuminated by a transverse magnetic plane wave are studied. Both the procedures investigated to place the filaments are efficient. The results obtained using the FEM, with first and second order triangular elements, are compared to those obtained using MFCW and show good agreement
Keywords :
dielectric bodies; electromagnetic wave scattering; finite element analysis; Bayliss-Turkel condition; FEM-ABC; MFCM techniques; circular section; filament positioning problem; filaments; finite element method; first order triangular elements; multi-filament current method; noncircular boundaries; open 2D scattering problems; perfect cylindric dielectric bodies; second order absorbing boundary condition; second order triangular elements; square cross section; transverse magnetic plane wave; Boundary conditions; Boundary element methods; Current; Dielectrics; Electromagnetic scattering; Finite element methods; Geometry; Integral equations; Moment methods; Partial differential equations;
Journal_Title :
Magnetics, IEEE Transactions on
