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Shifted SSOR preconditioning technique for improved electric field integral equations
Author(s) -
Chen Jiaqi,
Liu Zhiwei,
Cao Ning,
Yong Bin
Publication year - 2013
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.27289
Subject(s) - preconditioner , electric field integral equation , integral equation , convergence (economics) , field (mathematics) , mathematics , microwave , computational electromagnetics , electric field , mathematical analysis , relaxation (psychology) , matrix (chemical analysis) , electromagnetic field , linear system , computer science , physics , telecommunications , materials science , quantum mechanics , psychology , social psychology , pure mathematics , economics , economic growth , composite material
Recently, the improved electric field integral equation (IEFIE) is proposed to efficiently solve large dense complex linear system arising from three‐dimensional electromagnetic scattering problems. In this article, the shifted symmetric successive over‐relaxation preconditioner is constructed which combines the near‐field matrix of the EFIE and the principle value term of the magnetic field integral equation. The present method can achieve stably faster convergence of iterations than IEFIE with low cost for construction and implementation. Numerical results demonstrate the efficiency and validity of the present method. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:304–308, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27289