Ansys Insight: FDTD如何画三维远场辐射图

- March 10, 2021 at 6:13 pm
  
  Guilin Sun
  Ansys Employee
  
  通过脚本和复杂的运算，FDTD的结果也可以画三维远场辐射图。上贴的例子可能对有些用户比较复杂，这里以这个带有基底的背向散射为例 https://kb.lumerical.com/en/index.html?particle_scattering_cu_psl.html
  普通远场结果：
  
  借助于脚本文件，https://optics.ansys.com/hc/en-us/articles/1500006340081-Creating-a-far-field-radiation-plot-from-FDTD-angular-distributions 或者分析组中的
  可以做出如下的3D辐射图：
  
  如何解释结果：这个例子是斜入射，Phi在０到１８０度范围内，背向（后向）散射比较强
  
  实际上那个平面的极坐标图更清晰，只是有时为了发表文章，采用三维图形。

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