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A wearable textile antenna for wireless power transfer by magnetic resonance

Author:
Heo, Eunah  Choi, Keun-Yeong  Kim, Jooyong  Park, Jong-Hu  Lee, Hojin  


Journal:
TEXTILE RESEARCH JOURNAL


Issue Date:
2018


Abstract(summary):

The paper presents a wearable textile antenna embroidered on a fabric for wireless power transfer systems. A planar spiral coil was generated with the conductive thread on a cotton substrate, and was connected to a rectifier circuit fabricated on flexible polyethylene terephthalate film to constitute a bendable receiver by the magnetic resonance. At a resonance frequency of 6.78MHz, the proposed system could achieve -5.51dB transfer efficiency and 12.75 mW power transmission at a distance of 15cm. It was also demonstrated that the resonance frequency and transmitted power of the proposed system could be maintained as the same even when the system was bent conformingly to the surface curvature of the human body model for a bending radius up to 50mm or larger.


Page:
913---921


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