High-frequency asymptotic solutions for scattered electric field by a 2-D coated conducting cylinder covered with a thick dielectric medium
High-frequency asymptotic solutions for scattered electric field by a 2-D coated conducting cylinder covered with a thick dielectric medium
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厚介电介质覆盖的二维涂层导电圆柱体散射电场的高频渐近解
DOI：
10.1109/iceaa.2016.7731400
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
and Y. Takeno
中科院分区：
文献类型：
--
作者：
K. Hagiwara;K. Goto;S. Tokumaru;L. Okada;and Y. Takeno
我们简要地提出了二维（2-D）涂层导体圆柱散射电场的频域（FD）渐近解。我们假设电介质的厚度比从电线源辐射的柱面波的波长厚。FD渐近解由几何光线（GO）级数解和扩展的一致几何衍射理论（UTD）级数解组成。与传统的解相比，在每个级数解上增加了通过厚介质的多个反射波。通过与精确解和常规解的比较，证实了FD渐近解的有效性。
We briefly propose frequency-domain (FD) asymptotic solutions for a scattered electric field by a two-dimensional (2-D) coated conducting cylinder. We assume that the thickness of a dielectric medium is thick as compared with the wavelength of a cylindrical wave radiated from an electric line source. The FD asymptotic solutions are composed of a geometrical optical ray (GO) series solution and an extended uniform geometrical theory of diffraction (UTD) series solution. Multiple reflected waves passing through a thick dielectric medium are added on to each series solution as compared with a conventional solution. The validity of the FD asymptotic solutions is confirmed by comparing with an exact solution and a conventional solution.