An Unsplit Formulation of the 3D-PML Absorbing Boundary Conditions for TLM-Method in Time Domain

A new unsplit 3D-PML approach is implemented to the problem of mesh truncation in the TLM method. The main advantage of this approach is that it leads to a compact voltage and current sources formulation compared to Berengers scheme. Validation and efficiency of the new scheme are illustrated and demonstrated through numerical examples in homogeneous and bi-isotropic dielectric media. The obtained numerical results show the validity and efficiency of the proposed approach in terms of stability and computational time reduction owing to its simple and easy implementation.