Hy. Tan et al., Standing-travelling wave boundary condition (STWBC) for finite-difference time-domain mesh truncation, ELECTR LETT, 36(6), 2000, pp. 508-509
The standing-travelling wave boundary condition (STWBC) is presented for th
e truncation of the finite-difference time-domain (FDTD) grid. This new bou
ndary condition represents an improvement over the perfectly matched layer
(PML) and the one way wave absorbing boundary condition (ABC) in that it in
cludes no additional absorbing region, no field splitting, and is composed
of simple FDTD updating expressions. Numerical results demonstrate the stab
ility and efficiency of this new boundary condition.