Spinel ferrite flakes with and 0.65 are prepared for use as fillers in electromagnetic composites. The composites with the flaky fillers exhibit greatly enhanced high-frequency and attenuation properties. The complex permeability, and , is enhanced by about 500%–700%, and the relative attenuation bandwidth is increased by 300%–440%, as compared to those for composites with conventional spherical fillers. achieves 90% of the theoretically maximum relative bandwidth. The composites with the spinel ferrite flaky fillers are powerful and potential candidates as electromagnetic attenuation materials with ultrabroad bandwidth at microwave L, S, and C bands.
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Research Article| September 28 2010
Ultrabroad bandwidth and matching characteristics for spinel ferrite composites with flaky fillers
Z. W. Li;
Z. H. Yang;
Z. W. Li, Z. H. Yang, L. B. Kong; Ultrabroad bandwidth and matching characteristics for spinel ferrite composites with flaky fillers. J. Appl. Phys. 15 September 2010; 108 (6): 063927. https://doi.org/10.1063/1.3485809
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