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August 13, 2021 at 1:23 pm
Guilin Sun
Ansys Employee
这里面有几个问题: 偶极子因为有偏振,最好要根据偏振将它设置在相应的Yee网格点上,
其次,网格要对称:
此外,仿真区可能太小,导致PML不能有效吸收,特别是在偏振的那个面上,场很强。你添加3个方向的监视器看看场就知道了。因此,特别在某个方向需要很大的仿真区。
最后,由于FDTD网格是各向异性的,因此,不可能完全均匀。
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