1) School of Information Engineering, Nanchang University
Cross-coupling, long distance, relay resonator, wireless power transfer(WPT)
The final version of this article with its full bibliographical information is available. To access the article, click here (Vol. 14 (2017), No. 19 pp. 20170790-20170790).
The use of multi-resonators for medium-range wireless power transfer (WPT) systems is an important concern; the cross-couplings between non-adjacent coils have an adversely impact on the transmission distance and efficiency of the system. This paper proposes a dumbbell-shaped (DS) coil in a WPT system. The DS coil structure was analyzed theoretically and verified experimentally. The proposed scheme eliminates cross-couplings between non-adjacent coils in the multiple resonator system to resolve frequency drift, and improve the transmission distance and efficiency in the multiple resonator system. The scheme features a coplanar structure which can secure direct-coupling and save space when applied in the home, office, and public areas.
Edited and published by : The Institute of Electronics, Information and Communication Engineers Produced and listed by : Komiyama Printing Co., LTD.