Centimeter- and Millimeter-Wave Attenuation Properties of Carbonyl Iron Fiber-Filled Foam Composites

We have formulated carbonyl iron fiber-filled foam composites and measured their complex permittivity and permeability at x-band (8.2-12.4 GHz) by the transmission and reflection waveguide method. The results show that carbonyl iron fiber with smaller diameter and higher aspect ratio exhibits higher...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2008-12, Vol.44 (12), p.4567-4570
Main Authors: LI, Xiang-Cheng, GONG, Rong-Zhou, HE, Hua-Hui, YAO, Kai-Lun, LU, Pei-Xiang
Format: Article
Language:English
Subjects:
Applied sciences
Attenuation
carbonyl iron fiber
Carbonyls
centimeter and millimeter wave
Complex permittivity
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Ferrites
Fibre reinforced metals
foam
Foams
Iron
Magnetic materials
Magnetic resonance
Magnetism
Magnetosphere
Materials science
Metals. Metallurgy
Millimeter wave measurements
Millimeter wave technology
Other topics in materials science
Permeability
Physics
Powder metallurgy. Composite materials
Production techniques
Reflection
Saturation magnetization
Weight reduction
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Summary:We have formulated carbonyl iron fiber-filled foam composites and measured their complex permittivity and permeability at x-band (8.2-12.4 GHz) by the transmission and reflection waveguide method. The results show that carbonyl iron fiber with smaller diameter and higher aspect ratio exhibits higher complex permittivity and permeability. The reflection loss measurement shows that lightweight carbonyl iron fiber-filled foam composites possess good absorbing properties in both centimeter- and millimeter-wave bands.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2008.915616