One of the commonly used methods is total field/scattered field separation (TF/SF) technique for introducing plane waves in FDTD. The total field/scattered field separation is to divide FDTD calculation area into two parts of total field area and scattered field area by the connection boundary. The equivalent principle is used to introduce the incident wave on the connection boundary by using the connection boundary conditions. In this paper, we introduce incident wave by used TF/SF technology, and use UPML as the absorption boundary condition, the numerical example of TM wave is given, the energy intensity of the scattered field generated by the cloak device is calculated when some different incident angles.
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