期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 62, 期 3, 页码 1523-1528出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2013.2296327
关键词
Fast solvers; hierarchical systems; integral equations; method of moments (MoM); preconditioning
资金
- European Community [205294]
- HIRF SE project
- Clean Sky JU [337397]
We present an EFIE fast solver that is stable down to very low frequencies, for very dense meshes and multi-scale problems. The proposed approach uses a split-potentials formulation in association to a hierarchic pre-conditioner for the underlying low-rank fast factorization. Potential splitting prevents the numerical cancellation problem that undermines the effectiveness of the low-rank factorization, negatively impacting on the necessary factorization tolerance. The fast method presented in this work can be directly implemented into existing codes.
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