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SIMPLE METHODS TO RAISE THE ROBUSTNESS AND EFFICIENCY OF THE INCOMPLETE CHOLESKY PRECONDITIONERS FOR FEM SIMULATION OF ELECTROMAGNETIC PROBLEMS

By X. W. Ping, C. Bian, X. Yin, and J. Chen

Full Article PDF (385 KB)

Abstract:
In this paper, the finite element method (FEM) is applied to the analysis of three-dimensional (3D) electromagnetic structures. The incomplete Cholesky (IC) preconditioner based on shifted operators is used to solve the finite element linear systems. Several strategies are adopted to raise the efficiency and robustness of the preconditioner. Numerical experiments for several microwave devices demonstrate the superior numerical convergence and robustness of the proposed preocnditioner.

Citation:
X. W. Ping, C. Bian, X. Yin, and J. Chen, "Simple Methods to Raise the Robustness and Efficiency of the Incomplete Cholesky Preconditioners for FEM Simulation of Electromagnetic Problems," Progress In Electromagnetics Research M, Vol. 35, 49-56, 2014.
doi:10.2528/PIERM13111401

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