Direct Measurements of Complex Magnetic Permeability and Complex Dielectric Permittivity of Magnetic Materials

The dispersive Fourier transform spectroscopy was used with the specimen at the center of a high intensity "Bitter" solenoid magnet to measure the real and imaginary parts of complex magnetic permeability and real and imaginary parts of the complex dielectric permittivity of cubic and hexagonal ferrite materials at millimeter wavelength region.