Effect of shape of Fe particles on their electromagnetic properties within 1-18 GHz range

Spherical magnetic iron particles were milled into different flake shapes, and their permittivity, permeability dispersion behaviors have been investigated within the frequency range of 1-8 GHz range. The results show that both permittivity and permeability values depend on the particle shapes. These flake particles also demonstrate better microwave absorption performances. (C) 2010 American Institute of Physics. [doi:10.1063/1.3367970]