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首页> 外文期刊>Journal of Electromagnetic Waves and Applications >Analysis of scattering from cylindrical structures coated by radially inhomogeneous layer using Taylor;s series method
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Analysis of scattering from cylindrical structures coated by radially inhomogeneous layer using Taylor;s series method

机译：泰勒级数法分析径向非均质涂层圆柱结构的散射

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摘要

Consider a cylindrical structure with an arbitrary core coated by a radially inhomogeneous layer in a general case. The core of the structure may be PEC, PMC, PEMC, impedance boundary, dielectric, or metamaterial. Contrary to the scattering problems of homogeneous media, scattering problems of inhomogeneous media do not have exact solutions except for special inhomogeneous profiles. In this paper, a general frequency domain method is proposed to analyze scattering from such structures on the basis of Taylor's series concept for obliquely incident electromagnetic (EM) waves with arbitrary polarizations. The validity of the suggested method is verified by comparison with the exact solutions of some special profiles for the coating layer. Furthermore, a comparison is made between the proposed method and other commonly used methods in the literature, which confirms that the proposed method is general, fast, and has good convergence toward the solution. Moreover, as an application, we employed the method for optimization of the scattering echo width of a PEC cylinder.
机译：在一般情况下，考虑具有任意芯的圆柱形结构，该任意芯被径向不均匀的层覆盖。结构的核心可以是PEC，PMC，PEMC，阻抗边界，电介质或超材料。与均质介质的散射问题相反，非均质介质的散射问题除了特殊的非均质轮廓外，没有确切的解决方案。在本文中，基于泰勒级数概念，针对具有任意极化的倾斜入射电磁波，提出了一种通用频域方法来分析此类结构的散射。通过与涂层某些特殊轮廓的精确解进行比较，验证了所建议方法的有效性。此外，将提出的方法与文献中的其他常用方法进行了比较，这证实了提出的方法是通用的，快速的，并且对解决方案具有良好的收敛性。此外，作为一种应用，我们采用了该方法来优化PEC圆柱体的散射回波宽度。

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