Radio Absorptive Properties of γ-Fe_2O_3 and T_iO_2 Composite Materials (Part5)

Abstract

Radio absorptive properties in (γ-Fe_2O_3/T_iO_2)=(80/20) weight ratio are measured at the frequency range from 40MHz to 6.5GHz band. By our discussion, it has been found that matching condition is closely related to ε_γ'≒μ_τ', ε_γ"≒μ_τ", tanδ_ε≒tanδ_μ(≒1〜4) at 4.5GHz band. In this case, the bandwidth is depending on the thickness of the absorptive materials. The detail data of the absorptive properties is shown in this report.