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Magnetic Resonance WPT System Using a Planar Receiver for Mobile Applications
Van Thuan Nguyen(응웬반투언),Seok Hyon Kang(강석현),Chang Won Jung(정창원) 한국산학기술학회 2015 한국산학기술학회 학술대회 Vol.2015 No.1
In this study, a wireless power transfer (WPT) system including three coils and working at 6.78 MHz is investigated. By employing a 2 x 3 metamaterial (MTM) array, the efficiency of the proposed WPT system is significantly enhanced. Experiments show that with the MTM array, a maximum efficiency improvement of 27 % is achieved at transfer distance of 35 cm. The impact of ground plane on the transfer efficiency is also studied. Several methods to reduce this impact are discussed and measured.