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Study of electromagnetic wave absorption characteristics and component parameters of laminated-type magnetic wood with stainless steel and ferrite powder for use as building materials

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5 Author(s)
Oka, Hideo ; Electrical and Electronic Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan ; Tanaka, Kazunori ; Osada, H. ; Kubota, Kenji
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The purpose of this paper is to propose that a laminated-type magnetic wood using ferrite powder and stainless steel powder can serve as a wood building material of suitable quality for an indoor electromagnetic wave absorber. The experimental results for the gigahertz frequency band show that the laminated-type magnetic wood which has volume content ratio of 20 vol %, an inside ratio of stainless steel to ferrite powder 2:3, and a thickness of magnetic layer 4.0 mm has an electromagnetic wave absorption characteristic of 45.18 dB at 2.62 GHz. This laminated board can be used to prevent radio interference for indoor wireless LANs, which mainly use the 2.4 GHz frequency band.

Published in:

Journal of Applied Physics  (Volume:105 ,  Issue: 7 )