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Tan Y.,No59 Institute Of The China Ordnance Industry | Tang J.,No59 Institute Of The China Ordnance Industry | Tang J.,Chongqing University | Deng A.,No59 Institute Of The China Ordnance Industry | And 3 more authors.
Journal of Magnetism and Magnetic Materials | Year: 2013

In this work, the microwave absorbing properties (reflection loss, RL) of composite microwave absorbers with different thickness made of chlorosulfonated polyethylene matrices and different kinds of active fillers were investigated in the frequency range of 2-18 GHz. The materials used as microwave absorbents were graphite (GRP) and carbonyl-iron powder (CIP), and the complex permittivity ε r and the complex permeability μ r of the CIP/GRP composites were measured in 2-18 GHz frequency range. It was found that, with the thickness increases from 0.5 mm to 1.5 mm, the absorption peak shifts to lower frequency and the absorption band becomes wider. The frequency width with RL under -10 dB reached 8.96 GHz and the minimum RL was -33.19 dB at 13.24 GHz for the composite microwave absorber of 1.5 mm in thickness. © 2012 Elsevier B.V.

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