Mj. Park et S. Nam, FDTD ABC FOR WAVE-GUIDES WITH A NEW DISCRETE GREENS-FUNCTION AND ITS EFFECTIVE IMPLEMENTATION, Electronics Letters, 32(23), 1996, pp. 2128-2130
The authors propose a new discrete Green's function and an effective i
mplementation for the absorbing boundary condition for the FDTD simula
tion of waveguide problems. The Green's function is given analytically
in a simple, closed-form formula. A simple exponential approximation
method is used for an efficient ABC implementation.