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Full Wave Analyses of Electromagnetic Fields With an Iterative Domain Decomposition Method

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5 Author(s)
Takei, A. ; Dept. of Syst. Innovation, Univ. of Tokyo, Tokyo, Japan ; Sugimoto, S. ; Ogino, M. ; Yoshimura, S.
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This paper describes large-scale full wave analyses of electromagnetic fields by the finite-element method with an iterative domain decomposition method (IDDM). A stationary vector wave equation for the high-frequency electromagnetic field analyses is solved taking an electric field as an unknown function. Then, to solve subdomain problems by the direct method, the direct method based on the LDLT decomposition method is introduced in subdomains. If the direct method is applied for solving subdomain problems, the computation time seems to be reduced by the improved accuracy of subdomain problems, and storing matrices that are results of the decomposition on main memory.

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Magnetics, IEEE Transactions on  (Volume:46 ,  Issue: 8 )