EFIE Modeling of High-Definition Multiscale Structures
EFIE Modeling of High-Definition Multiscale Structures
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DOI：
10.1109/tap.2010.2048855
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发表时间：
2010-04
影响因子：
5.7
通讯作者：
F. Vipiana;M. Francavilla;G. Vecchi
中科院分区：
文献类型：
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作者：
F. Vipiana;M. Francavilla;G. Vecchi
我们提出了一种方法，可以显着改善EFIE MoM矩阵的光谱特性，用于对具有精细细节、不均匀网格和大总体尺寸的结构进行宽带分析。一个多层次的方法允许覆盖细网格和准奈奎斯特采样网格;细网格条件通过分层基函数求解，准奈奎斯特采样部分由代数不完全LU预处理器处理。数值结果表明，该方法的有效性，为几个现实的结构与整体尺寸的10/20波长和水平的细节从非常温和的扩展到整个结构。
We propose a method to significantly improve the spectral properties of the EFIE MoM matrix for broad-band analysis of structures with fine details, non-uniform meshes, and large overall sizes. A multilevel approach allows to overlay fine meshes and quasi-Nyquist sampled meshes; the fine-mesh conditioning is solved via hierarchical basis functions, and the quasi-Nyquist sampled part is treated by an algebraic incomplete LU preconditioner. Numerical results show the effectiveness of the approach for several realistic structures with overall sizes of ten/twenty wavelengths and levels of detail from very moderate to extending over the whole structure.