Title :
Evaluation of the BICGSTAB(l) algorithm for the finite-element/boundary-integral method
Author :
Topsakal, Erdem ; Kindt, R. ; Sertel, Kubilay ; Volakis, John
Author_Institution :
Radiat. Lab., Michigan Univ., Ann Arbor, MI
fDate :
12/1/2001 12:00:00 AM
Abstract :
We discuss the application of non-stationary Krylov-subspace-based iterative solvers to linear systems resulting from the application of the finite-element/boundary-integral method. A fairly new conjugate-gradient-based solver, BICGSTAB(l) is further described. The performance of several solvers is tested on a linearly tapered slot antenna (LTSA). Results showing the convergence characteristics and memory requirements are also given
Keywords :
boundary-elements methods; conjugate gradient methods; convergence of numerical methods; finite element analysis; iterative methods; matrix decomposition; slot antennas; BICGSTAB(l) algorithm; CPU overhead; E-plane field patterns; H-plane field patterns; ILU preconditioning; LTSA; coefficient matrix; conjugate-gradient-based solver; convergence characteristics; finite-element/boundary-integral method; linear systems; linearly tapered slot antenna; memory requirements; nonstationary Krylov-subspace-based iterative solvers; Application software; Computational efficiency; Convergence; Finite element methods; Integral equations; Iterative algorithms; Iterative methods; Matrix decomposition; Slot antennas; Sparse matrices;
Journal_Title :
Antennas and Propagation Magazine, IEEE
