High-frequency magnetic properties at K and Ka bands for barium-ferrite/silicone composites

► “ Magnetic properties at 18-40 GHz are studied for MnTi substituted M-type barium ferrite composites. ► The permeability spectra show resonance like-type dispersions with large u'' ► “ The composites exhibit relatively high resonance frequencies fR of 20-33 GHz. ► fR is closely related to the anisotropic field Ha and the MnTi substitution. ► These properties will be beneficial to the design of electromagnetic composites at K and Ka bands.