Electromagnetic Wave Absorption Performances of Metal Alloy/Spinel Ferrite/Polymer Composites

被引:38
作者
Dosoudil, R. [1 ]
Franek, J. [1 ]
Slama, J. [1 ]
Usakova, M. [1 ]
Gruskova, A. [1 ]
机构
[1] Slovak Tech Univ Bratislava, Fac Elect Engn & Informat Technol, Bratislava 81219, Slovakia
关键词
Composite materials; electromagnetic interference; ferrite; metal alloy; permeability; return loss; COMPLEX PERMEABILITY; POLYMER COMPOSITES; ABSORBER;
D O I
10.1109/TMAG.2011.2172779
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
High-frequency electromagnetic wave (EM-wave) absorbing characteristics of metal alloy/spinel ferrite/polymer composite materials with various metal alloy particle contents were evaluated from measurements of complex permeability mu = mu' - j mu '' by the coaxial reflection method in the frequency interval from 1 MHz to 3 GHz. We varied the volume content of metal alloy in composites from 0 to 60 vol% at fixed 40 vol% content of polymer matrix. The increasing metal alloy content in composites resulted in a smaller matching thickness and larger matching frequency than that of spinel ferrite/polymer composite. The return loss calculations showed that prepared composites are good EM-wave absorbers in the quasi-microwave band (100 MHz-3 GHz) and thus suitable for electromagnetic interference noise suppression in electronic communication systems.
引用
收藏
页码:1524 / 1527
页数:4
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