Abstract
We have developed a theoretical formulation for calculating electromagnetic reflection and transmission coefficients in magnetically nonsaturated media. Numerical examples are presented for the cases of an electromagnetic wave normally incident upon a slab of ferromagnetic insulator or metal. Antiresonance transmission is predicted for nonsaturated magnetic metals. For H in the slab plane, the antiresonance frequency is nearly independent of domain structure in contrast to the case of H normal to the slab plane.