An exact non-reflecting boundary condition was derived previously for use w
ith the time-dependent Maxwell equations in three space dimensions. Here it
is shown how to combine that boundary condition with the variational formu
lation for use with the finite element method. The fundamental theory under
lying the derivation of the exact boundary condition is reviewed. Numerical
examples with the finite-difference time-domain method are presented which
demonstrate the high accuracy and confirm the expected rate of convergence
of the numerical method. Copyright (C) 2000 John Wiley & Sons, Ltd.