Dependence of the Resonance Line-Width of Microwave Ferromagnetic Materials on Incident RF Power (Correspondence)

The intrinsic resonance linewidth of ferromagnetic materials is a key parameter in delineating the characteristics of these materials. Most of the published data concerning the resonance linewidth of ferrites and garnets are valid for small-signal conditions. However, Suhl's theory has indicated that the linewidth is dependent upon the RF peak power to which the material is subjected.