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Near field analysis of an aircraft on the layered half space by FDTD method

In this paper, the Finite-Difference Time-Domain (FDTD) method is used to simulate the near electromagnetic field when an aircraft is located on the layered half space. To solve this problem, the Π-shape Total-Field/Scattering-Field (TF-SF) boundary scheme is introduced. The 2D side TF/SF boundaries are governed by the modified 1D Maxwell's equations, and then, 3D TF/SF boundaries are projected onto the 2D TF/SF boundaries in order to obtain the 3D incident wave. To truncate the fields, the Convolutional Perfectly Matched Layer (CPML) Absorbing Boundary Condition (ABC) is also used. At last, the near field of an aircraft on the layered half space is computed by FDTD method. The numerical example shows the feasibility and applicability of proposed scheme.