Hierarchical multilevel potential preconditioner for fast finite-element analysis of microwave devices

Author

Zhu, Yu ; Cangellaris, Andreas C.

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

Volume

50

Issue

8

fYear

2002

fDate

8/1/2002 12:00:00 AM

Firstpage

1984

Lastpage

1989

Abstract

A robust hierarchical multilevel preconditioning technique is presented for the fast finite-element analysis of microwave devices. The proposed preconditioner is based on a hierarchical multilevel scheme for the vector-scalar potential finite-element formulation of electromagnetic problems. Numerical experiments from the application of the new preconditioner to the finite-element analysis of microwave devices are used to demonstrate its superior numerical convergence and efficient memory usage.

Keywords

S-parameters; convergence of numerical methods; finite element analysis; microstrip lines; microwave devices; waveguide filters; electromagnetic problems; fast finite-element analysis; hierarchical multilevel potential preconditioner; hierarchical multilevel scheme; memory usage; microstrip line; microwave devices; numerical convergence; numerical experiments; vector-scalar potential finite-element formulation; waveguide filter; Convergence of numerical methods; Finite element methods; Helium; Iterative methods; Linear systems; Microwave devices; Microwave theory and techniques; Null space; Robustness; Vectors;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2002.801351

Filename

1022044