Non-Reflecting SFBF Termination Inverting From TFSF Discontinuity Decomposition

This paper presents a scattering termination using a perfectly non-reflecting scattering-field boundary-field (SFBF) decomposition equivalent to the total field scattered field in principle. Unlike Dirichlet-to-Neumann mapping techniques, local space-time evaluation is achieved by invoking one-sided differential definition directly operating on Maxwell equations. Efficient bilateral implementation is also developed to avoid solving higher order paraxial difference equations. Numerical results show the SFBF has a better early-time and evanescent wave termination accuracy than the convolution perfectly matched layer.