Surface Integral Equation Method for Scattering by DB Objects with Sharp Wedges

Johannes Markkanen; Pasi Yla-Oijala; Ari Sihvola

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Surface Integral Equation Method for Scattering by DB Objects with Sharp Wedges

机译：具有尖楔形的DB对象散射的表面积分方程法

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摘要

A surface integral equation method is used to analyze time-harmonic electromagnetic scattering by arbitrarily shaped three-dimensional DB objects with sharp wedges. At the DB boundary surface, the electric and magnetic flux densities D and B normal to the surface are zero. The DB boundary conditions are enforced by expanding the unknown equivalent surface current densities with divergence-free loop ba-sis functions. The equations are tested with Galerkin's method. The integral equation method is applied to investige field behavior at sharp DB wedges and the results are compared with the quasistatic solution in order to determine the accuracy of numerical solution at the sharp DB wedges.

机译：使用表面积分方程法分析具有尖锐楔形的任意形状的三维DB对象的时谐电磁散射。在DB边界表面上，垂直于该表面的磁通密度D和B为零。通过使用无散度环路基础函数扩展未知的等效表面电流密度，可以强制执行DB边界条件。这些方程用Galerkin方法测试。将积分方程方法用于研究锐利DB楔形处的场行为，并将结果与准静态解进行比较，以确定锐利DB楔形处的数值解的准确性。

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来源
《Applied Computational Electromagnetics Society journal》 |2011年第5期|p.367-374|共8页
作者
Johannes Markkanen; Pasi Yla-Oijala; Ari Sihvola;
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作者单位

Department of Radio Science and Engineering Aalto University School of Electrical Engineering PO Box 13000, FI-00076 AALTO, Finland;

Department of Radio Science and Engineering Aalto University School of Electrical Engineering PO Box 13000, FI-00076 AALTO, Finland;

Department of Radio Science and Engineering Aalto University School of Electrical Engineering PO Box 13000, FI-00076 AALTO, Finland;

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原文格式 PDF
正文语种 eng
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关键词
DB; boundary; condition; field singular-ity; integral; equation method;

机译：DB;边界;条件;场奇异性;积分;方程法;

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1. Computation of Scattering by DB Objects With Surface Integral Equation Method [J] . Markkanen J., Yla-Oijala P., Sihvola A. Antennas and Propagation, IEEE Transactions on . 2011,第1期

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2. Solving electromagnetic scattering from complex composite objects with domain decomposition method based on hybrid surface integral equations [J] . Ran Zhao, Zhi Xiang Huang, Yongpin P. Chen, Engineering analysis with boundary elements . 2017,第DECa期

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3. Electromagnetic scattering from cylindrical objects above a conductive surface using a hybrid finite-element-surface integral equation method [J] . Babak Alavikia, Omar M. Ramahi Journal of the Optical Society of America, A. Optics, image science, and vision . 2011,第12期

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5. Time domain integral equation-based methods for analyzing electromagnetic scattering from objects residing in lossy media. [D] . Jiang, Peilin. 2007

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6. A 3D spatial spectral integral equation method for electromagnetic scattering from finite objects in a layered medium [O] . Roeland J. Dilz, Mark G. M. M. van Kraaij, Martijn C. van Beurden -1

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7. Electromagnetic Scattering Analysis of SHDB Objects Using Surface Integral Equation Method [O] . Beibei Kong, Pasi Ylä-Oijala, Ari Sihvola 2020

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8. Integral Equation Methods in Sound Radiation and Scattering from Arbitrary Surfaces [R] . Chertock, G. 1971

机译：任意曲面声辐射和散射的积分方程方法

Surface Integral Equation Method for Scattering by DB Objects with Sharp Wedges

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