Complex permittivity and permeability of barium and strontium ferrite powders in X, KU, and K-band frequency ranges - art. no. 10F105

摘要

This paper presents accurate results for the complex permittivity, epsilon=epsilon'-j epsilon" and permeability, mu =mu'-j mu" of barium ferrite powder (BaFe12O19) and strontium ferrite powder (SrFe12O19), in the frequency range from 8.0 to 26.5 GHz. The complex permittivity and permeability are determined via the waveguide transmission/reflection (TR) technique and the waveguide cavity resonator (CR) technique at 25 degrees C and relative humidity < 75. Measurements reveal that the real permittivities of BaFe12O19 and SrFe12O19 are, respectively, 2.497