Forward-backward method for scattering from dielectric rough surfaces
Forward-backward method for scattering from dielectric rough surfaces
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DOI：
10.1109/tap.2002.800700
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发表时间：
2002-11
影响因子：
5.7
通讯作者：
A. Iodice
中科院分区：
文献类型：
--
作者：
A. Iodice
迭代前向-后向 (FB) 方法是最近提出的一种有效技术，用于对完美传导粗糙表面的散射进行数值评估。还提出了该方法的扩展，包括来自具有高复介电常数虚部的不完美导电表面的散射。 FB 方法进一步推广用于分析具有任意复介电常数的介电粗糙表面的散射。电和磁等效表面电流被分成前向和后向分量，并获得控制这些电流分量的方程。作为解决方案，提出了迭代方案并分析了其收敛速度。最后，通过将获得的散射结果与采用常用矩量法 (MoM) 计算的“精确”结果进行比较来评估该方法的有效性。
The iterative forward-backward (FB) method is a recently proposed efficient technique for numerical evaluation of scattering from perfectly conducting rough surfaces. Extension of the method to include scattering from imperfect conducting surfaces, with a high imaginary part of the complex dielectric constant, has also been proposed. The FB method is further generalized to analyze scattering from dielectric rough surfaces with arbitrary complex dielectric constant. Electric and magnetic equivalent surface currents are split into forward and backward components and equations governing these current components are obtained. As a solution, an iterative scheme is proposed and its convergence rate is analyzed. Finally, the effectiveness of the method is assessed by comparing the obtained scattering results with "exact" ones, computed by employing the usual method of moments (MoM).