Premium
Application of the multifrontal method to the vector FEM for analysis of microwave filters
Author(s) -
Chen R. S.,
Wang D. X.,
Yung Edward K. N.,
Jin J. M.
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10064
Subject(s) - finite element method , conjugate gradient method , microwave , enhanced data rates for gsm evolution , reflection (computer programming) , conjugate , mathematics , computer science , mathematical analysis , algorithm , physics , telecommunications , thermodynamics , programming language
The multifrontal method is applied for solving a large system of linear equations resulting from the use of the edge‐based finite‐element method (FEM). The finite‐element method combined with the perfectly matched layers (PMLs) is given for the simulation of microwave filters, and the algorithm of the multifrontal method is described in detail. The reflection loss and insertion loss of several filters are analyzed as examples, and the obtained results are compared with those obtained from the literature. In order to demonstrate the efficiency of the multifrontal method, the computational time is compared with that of both the symmetric successive overrelaxation (SSOR) preconditioned conjugate‐gradient (PCG) and conjugate‐gradient methods (CG) for a thick‐iris waveguide bandpass filer. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 31: 465–470, 2001.