Microwave Absorption Properties of one Thin Absorber Based on Carbonyl-Iron Powder

Li Dong Liu; Yu Ping Duan; Shun Hua Liu; Jing Bo Guo; Li Yang Chen

doi:10.4028/www.scientific.net/MSF.675-677.861

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HomeMaterials Science ForumMaterials Science Forum Vols. 675-677Microwave Absorption Properties of one Thin...

Microwave Absorption Properties of one Thin Absorber Based on Carbonyl-Iron Powder

Abstract:

In this paper, one thin microwave absorbing sheet employing carbonyl-iron powder (CIP) and chlorinated polyethylene (CPE) was prepared. The pattern and static magnetic properties of CIP were characterized by scanning electron microscope (SEM) and vibrating sample magnetometer (VSM), respectively. The electromagnetic parameters and loss mechanisms of CIP were measured and discussed. The microwave absorption properties of composite sheets with different thicknesses and CIP ratios in matrix were investigated by measuring reflection loss (RL) in 2-18GHz. The results showed that the microwave absorption properties could be optimized by controlling CIP content and thickness of sheet. For the sample with the weight ratio (CIP:CPE) of 10:1 and 1mm thickness, the absorption bandwidth (RL below -4dB) achieved 14GHz (4-18GHz).

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Materials Science Forum (Volumes 675-677)

Pages:

861-864

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.675-677.861

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Online since:

February 2011

Authors:

Li Dong Liu, Yu Ping Duan, Shun Hua Liu, Jing Bo Guo, Li Yang Chen

Keywords:

Carbonyl Iron Powder, Microwave Absorption, Permeability, Permittivity, Reflection Loss (RL)

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