Electromagnetic Properties of Silica-Coated Planar Anisotropy Carbonyl-Iron Particles in Quasimicrowave Band

Abstract:

For the sake of thinner electromagnetic wave absorbers used in quasimicrowave band, planar anisotropy carbonyl-iron (PACI) coated with amorphous SiO2 particles as absorber and paraffin as matrix were prepared. The complex permeability, complex permittivity and microwave absorption properties were investigated in the frequency range of 0.1-18 GHz. Both the real parts of permeability and permittivity are increased with the increasing of PACI/SiO2 particles volume concentrations. The minimum reflection loss shifts to the low frequency region with increase in PACI/SiO2 particles volume concentrations. The decrease of matching frequency could be well explained by the increasing of and . The PACI/SiO2 core-shell material exhibits great potential in application absorbers in quasimicrowave frequency range.

• Periodical: Advanced Materials Research (Volumes 160-162)
• Pages: 962-967
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.160-162.962
• Online since: November 2010
• Authors: Rui Han, Xiang Hua Han, Liang Qiao, Tao Wang, Fa Shen Li
• Keywords: Core-Shell, Microwave Absorption, Quarter-Wavelength Resonator, Volume Concentration

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