A finite elementboundary integral method for scattering and radiation by two and threedimensional structures
Abstract
A review of a hybrid finite elementboundary integral formulation for scattering and radiation by two and threecomposite structures is presented. In contrast to other hybrid techniques involving the finite element method, the proposed one is in principle exac, and can be implemented using a low O(N) storage. This is of particular importance for large scale applications and is a characteristic of the boundary chosen to terminate the finiteelement mesh, usually as close to the structure as possible. A certain class of these boundaries lead to convolutional boundary integrals which can be evaluated via the fast Fourier transform (FFT) without a need to generate a matrix; thus, retaining the O(N) storage requirement.
 Publication:

IEEE Antennas and Propagation Magazine
 Pub Date:
 June 1991
 DOI:
 10.1109/74.88218
 Bibcode:
 1991IAPM...33...22J
 Keywords:

 Boundary Integral Method;
 Composite Structures;
 Electromagnetic Scattering;
 Finite Element Method;
 Three Dimensional Composites;
 Computational Grids;
 Fast Fourier Transformations;
 Integral Equations;
 Communications and Radar