Simulation and Study on the Ability of Electromagnetic Absorption of Fe\(_3\)O\(4\)/Paraffin Composite Material

Hong Thi Minh Nguyen, Duy Van Nguyen, Co Dang Nguyen, Tu Dinh Bui, Thang Duc Pham


The issue of solving electromagnetic pollution and minimizing the harmful effects of microwave radiation on the environment has been very urgent for scientists today. To eliminate electromagnetic energy, most common methods use electromagnetic waves to absorb material with large absorption capacities in the wide frequency band. In this paper, we investigated the absorption of electromagnetic waves of Fe3O4 nanoparticles in paraffin basis. The Fe3O4/parafin composite material was prepared with a weight ratio of 35%/65%. The dielectric constant (εr) and the magnetic permeability (μr) of the material in the frequency (f) range from 8 to 18 GHz were measured for various sample thickness. The results indicated a large dielectric loss and strong thickness dependence of absorption capacity. The maximum absorption coefficient (RL) of ~ -13.6 dB, corresponding to the absorbance of 96,9% was obtained for the 2.6 mm of sample thickness. The experimental results are consisted with our simulation calculation.


absorbant material, electromagnetic wave absorption

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