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No A Park(박노아),Hyo Sang Choi(최효상),In Sung Jeong(정인성),Hye Won Choi(최혜원) 대한전기학회 2018 전기학회논문지 Vol.67 No.3
Studies have been actively conducted on the magnetic-resonance wireless power transmission (WPT) for commercialization. Such studies are essential for improving the transmission efficiency. In the magnetic-resonance WPT, the inductance (L) and capacitance (C) vary significantly depending on the design of the coils, and the efficiency sharply changes accordingly. To address this problem, studies on the coil design are required. In this study, the S-parameter characteristics according to the number of turns of the coil were analyzed to improve the efficiency of the superconducting WPT. Superconducting coils were designed, and the reflection coefficient (S11) according to the turns was analyzed. It was confirmed that the power transmission characteristics were improved as the reactance approached 0 Ω.