Y. Nishioka et al., FDTD implementation of surface impedance boundary condition for dispersivelayer backed by perfect conductor, IEICE TR EL, E81C(12), 1998, pp. 1902-1904
In this paper, the surface impedance boundary condition (SIBC) for a disper
sive lossy medium backed by a perfect conductor is implemented in computati
on of electromagnetic (EM) scattering using the finite difference time doma
in (FDTD) method. The dispersion of the surface impedance is incorporated i
nto FDTD update equations by using the piecewise linear recursive convoluti
on (PLRC) approach. The validity of the proposed method is confirmed numeri
cally.