Effective magnetic permeability of compacted metal powders at microwave frequencies

摘要

The calculation of the absorption of electromagneticwaves in an inhomogeneous medium consisting of manyparticles relies on the effective values of the dielectricpermittivity and the magnetic permeability of the medium[1]. The subject of this paper is the effective magneticpermeability of an inhomogeneous medium consisting ofmetal particles. The response of a medium consisting ofmetal particles when exposed to a high-frequency mag-netic field is determined by the induced magnetic mo-ments associated with the excitation of eddy electric cur-rents in the particles.