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A high-order wideband direct solver for electromagnetic scattering from bodies of revolution

机译:高阶宽带直接求解器,用于从革命体散射电磁散射

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摘要

The generalized Debye source representation of time-harmonic electromagneticfields yields well-conditioned second-kind integral equations for, amongothers, the problems of scattering from perfect electric conductors anddielectric bodies. Furthermore, these representations, and resulting integralequations, are fully stable in the static limit as $omega o 0$ in multiplyconnected geometries. In this paper, we present the first high-order accuratesolver based on this representation for bodies of revolution, and compare withexisting schemes based on classical representations and integral equations. Theresulting solver uses a Nystr"om discretization of a generating curve, withspectral-integral methods for applying and inverting surface differentials. Theaccuracy and speed of the solver are demonstrated in several numericalexamples.
机译:时间谐波电磁场的广义德拜斯源表示产生良好的条件,其中包括散射从完美的电导体和发电体散射的问题。此外,这些表示和由此产生的集成量在静态限制中完全稳定,在Multiply Contection几何形状中为0美元。在本文中,我们介绍了基于旋转体的这种表示的第一高阶准确性,并基于经典表示和整体方程式化方案。 Theresulting求解器使用NYSTR “OM离散化产生曲线,具有用于施加和反相表面差异的光谱整体方法。在几个数字申察逐步证明了求解器的脚印和速度。

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