FINITE-DIFFERENCE TIME-DOMAIN ANALYSIS OF ARBITRARILY BIASED MAGNETIZED FERRITES

The finite difference time domain method is extended to include three- dimensional propagation in a saturated magnetized ferrite with an arbi trary direction of the biasing field. The recursive convolution method is used to include the frequency dependence of the ferrite. Both tota l and scattered field formulations are developed. This approach requir es the additional storage of at most three complex numbers per cell. T ransient scattering in two and three dimensions is used to demonstrate the accuracy of this approach.