Development and implementation of LOD-CPML for efficient electromagnetics simulations

The generality and simplicity of the finite-difference time-domain (FDTD) method makes wide applications and popularity, however, the Courant Friedrich Levy (CFL) limit is constraint in its computational efficiency for fine mesh required structures. Recently, a new unconditionally stable locally one-dimensional (LOD)-FDTD method is introduced. The two-step implementation of the LOD-FDTD method is similar to the conventional ADI-FDTD method, but with less computational time. In this paper, we focused on the LOD- FDTD method for open structures. We applied the convolutional perfectly matched layer (CPML) to the LOD- FDTD method. For simplicity it is applied to two-dimensional TE mode, and on the similar pattern it can be extended to three-dimensional case.