The general MIPML absorbing boundary condition for frequency-dispersive media in FDTD analyses

Material independent perfectly matched layer (MIPML) is extended to the case of dispersive media, the impedance matched condition and the reflectionless conditions are proved at the same time. The setting and calculating methods of the general MIPML absorbing boundary for frequency-dispersive media is given by combining MIPML with Shift Operator Finite-Difference Time-Domain method. The characteristics of our absorbing boundary condition are tested. The computed results illustrated the generality and the feasibility of the scheme.