Title :
A FEM/BEM formulation for a CG-FFT solution of 3-D scattering by a cavity
Author :
Jin, J.-M. ; Volakis, J.L.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
A technique which combines the finite element and boundary integral formulations along with the conjugate gradient method (CGM) and fast Fourier transform (FFT) was proposed for the electromagnetic characterization of infinitely long slots in a thick conducting plane filled with an inhomogeneous composite material (see Jin and Volakis, 1989). In the present work, the authors extend the technique to treat three-dimensional problems. Specifically, they consider the problem of scattering by a three-dimensional cavity in an infinite conducting plane.<>
Keywords :
boundary-elements methods; conjugate gradient methods; electromagnetic wave scattering; fast Fourier transforms; finite element analysis; 3-D scattering; 3D scattering; EM characterisation; FFT; boundary element method; conjugate gradient method; electromagnetic scattering; fast Fourier transform; finite element method; infinite conducting plane; infinitely long slots; inhomogeneous composite material; thick conducting plane; three-dimensional cavity; three-dimensional problems; Apertures; Finite element methods; Gradient methods; Iron; Laboratories; Permittivity; Scattering; Surface impedance; Surface waves; User-generated content;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115501
