High Efficiency Wireless Power Transfer System using a Two-Stack Hybrid Metamaterial Slab
In this paper, we proposed a two-stack hybrid metamaterial slab to enhance the power transfer efficiency in wireless power transfer (WPT) system. A hybrid metamaterial is consist of zero magnetic permeability unit cells and negative magnetic permeability unit cells. Previous research shows that a hybrid metamaterial slab slightly enhances power transfer efficiency of WPT system. We first used a two-stack hybrid metamaterial slab and it shows considerably the enhanced power transfer efficiency compared to one hybrid metamaterial case. We verified the power transfer efficiency with S-parameter measurement. Thus, we finally achieved maximum 25.4% efficiency enhancement when the distance between Tx and Rx coils is 15 cm, and in overall distance variation cases, the proposed two-stack hybrid metamaterial slab make the power transfer efficiency increase.
S. Lee et al., "High Efficiency Wireless Power Transfer System using a Two-Stack Hybrid Metamaterial Slab," Proceedings of the 2019 IEEE Wireless Power Transfer Conference (2019, London, United Kingdom), pp. 616 - 619, Institute of Electrical and Electronics Engineers (IEEE), Jun 2019.
The definitive version is available at https://doi.org/10.1109/WPTC45513.2019.9055525
2019 IEEE Wireless Power Transfer Conference, WPTC 2019 (2019: Jun. 18-21, London, United Kingdom)
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
Metamaterial; Power Transfer Efficiency; Wireless Power Transfer
International Standard Book Number (ISBN)
Article - Conference proceedings
© 2019 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
21 Jun 2019