Finite-difference time-domain method

Summary

The finite-difference time-domain method (FDTD) solves the time-dependent Maxwell equations by finite differences. It places the electric and magnetic field components on the staggered Yee lattice and updates them in turn, half a time step apart. It was introduced by Kane Yee in 1966. It is simple, explicit and needs no matrix inversion, and one run with a short pulse gives the response over a wide band of frequencies.