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[Guilin Sun]

farfield3d函数结果是强度Projects a given power or field profile monitor or a rectilinear dataset to the far field in a 3D simulation. The electric field intensity |E| ²  is returned.

而farfieldvector3d函数结果是场The function farfieldvector3d is similar to farfield3d, but it returns the complex electric fields, rather than field intensity. 

关键看你想要什么结果，你再阅读一下两个例子的脚本。