2002•IEEE Microwave and Wireless Components LettersRequires access
Hybrid multilevel/multigrid potential preconditioner for fast finite element modeling
Yu Zhu, A.C. Cangellaris
Open publisher page 6 citations
Abstract
A robust hybrid multilevel/multigrid potential preconditioner is introduced for the fast and robust finite-element modeling of electromagnetic structures. The proposed preconditioning process combines the advantages of the hierarchical multilevel preconditioner and the nested multigrid potential preconditioner into a novel preconditioner with superior computational versatility. Numerical experiments from the application of the new preconditioner to the finite-element analysis of microwave devices demonstrate its superior numerical convergence and efficient memory usage.