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The determination of the effective radius of a filamentary source in the FDTD mesh

机译:确定FDTD网格中丝状源的有效半径

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This paper proposes a rigorous method for determining the effective radius, r/sub eff/, of a single axial field component, E/sub x/ or H/sub x/, in a two-dimensional (2-D) TM/sub x/ or TE/sub x/ FDTD grid, respectively. The method is based upon matching FDTD results for a filamentary field source with the analytical Green's function in two dimensions. We find that r/sub eff//spl ap/0.2 grid cells over a wide range of grid resolutions. Further, our findings vividly demonstrate the nondissipative nature of the Yee algorithm even for very coarse grid resolutions.
机译:本文提出了一种严格的方法来确定二维(2-D)TM / sub中单个轴向磁场分量E / sub x /或H / sub x /的有效半径r / sub eff / x /或TE / sub x / FDTD网格。该方法基于将具有二维分析格林函数的丝状场源的FDTD结果进行匹配。我们发现,在宽范围的网格分辨率下,r / sub eff // spl ap / 0.2网格单元。此外,即使对于非常粗糙的网格分辨率,我们的发现也生动地证明了Yee算法的非耗散性。

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