RF electromagnetic wave absorbing properties of ferrite polymer composite materials

被引：90

作者：

Dosoudil, Rastislav ^{[1
]}

Usakova, Marianna ^{[1
]}

Franek, Jaroslav ^{[1
]}

Slama, Jozef ^{[1
]}

Olah, Vladimir ^{[1
]}

机构：

[1] Slovak Tech Univ Bratislava, Fac Elect Engn & Informat Technol, Bratislava 81219, Slovakia

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2006年 / 304卷 / 02期

关键词：

Complex permeability; Spinel ferrite; Composite materials; Return loss;

D O I：

10.1016/j.jmmm.2006.02.216

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The frequency dispersion of complex initial (relative) permeability (mu* = mu' - mu '') and the electromagnetic wave absorbing properties of composite materials based on NiZn sintered ferrite and a polyvinylchloride ( PVC) polymer matrix have been studied in frequency range from 1 MHz to 1 GHz. The complex permeability of the composites was found to increase as the ferrite content increased, and was characterized by frequency dispersion localized above 50 MHz. The variation of return loss (RL) of single-layer RF absorbers using the prepared composite materials has been investigated as a function of frequency, ferrite content and the thickness of the absorbers. (C) 2006 Elsevier B.V. All rights reserved.

引用

页码：E755 / E757

页数：3

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