This MATLAB M-file implements the finite-difference time-domain solution of Maxwell s curl equations over three-dimensional Cartesian space lattice comprised of uniform cubic grid cells.

To illustrate the algorithm, an air-filled rectangular cavity resonator is modeled. The length, width, and height of the cavity are 10.0 cm (x-direction), 4.8 cm (y-direction), and 2.0 cm (z-direction), respectively.-This MATLAB M-file implements the finite-difference time-domain solution of Maxwell' s curl equations over three-dimensional Cartesian space lattice comprised of uniform cubic grid cells. To illustrate the algorithm, an air-filled rectangular cavity resonator is modeled. The length, width, and height of the cavity are 10.0 cm (x-direction), 4.8 cm (y-direction), and 2.0 cm (z-direction), respectively.