The effects of shape anisotropy of the magnetic particles in a composite on RF power absorption

The shape anisotropy of the magnetic particles in a composite film for EMI applications plays a key role in their performance. For a few types of the particles such as wires and hollow fibers, permeabilities of the particles and in-line attenuation of the composite were evaluated by simulations. Wit...

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Bibliographic Details
Published in2015 Asia-Pacific Symposium on Electromagnetic Compatibility (APEMC) pp. 528 - 531
Main Authors Baekil Nam, Jinu Kim, Joonsik Lee, Ki Hyeon Kim
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2015
Subjects
Demagnetization
Magnetic resonance
Optical fiber theory
Permeability
Perpendicular magnetic anisotropy
Saturation magnetization
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Summary:The shape anisotropy of the magnetic particles in a composite film for EMI applications plays a key role in their performance. For a few types of the particles such as wires and hollow fibers, permeabilities of the particles and in-line attenuation of the composite were evaluated by simulations. With the change of the shape anisotropy by aspect ratio or hollow ratio, power absorption could be controlled in frequency. In experiments, Ni/FeCo magnetic hollow fibbers were fabricated by electroless plating and power loss of the composite filled with the fibbers was evaluated.
ISBN:1479966681
9781479966684
ISSN:2162-7673
2640-7469
DOI:10.1109/APEMC.2015.7175385