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

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2012年 / 48卷 / 04期

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

页码：1524 / 1527

页数：4

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