Numerical study on two-dimensional magnetic photonic crystals made of magnetized ferrites

T!ransmission characteristics of two-dimensional magnetic photonic crystals with square and hexagonal lattice have been studied by full wave electromagnetic simulation. The magnetic photonic crystals are composed of array of fully magnetized ferrite rods. Using FDTD methods, the transmission characteristics of the magnetic photonic crystals axe simulated with different models of permeability. We find that simulation results using tensor permeability of ferrites differ from those of simulation with a scalar effective permeability of TMz mode, which demonstrates that for magnetic photonic crystals anisotropy of ferrites cannot be simply modeled by an equivalent isotropic magnetic medium.