Enhancing Wireless Power Transfer Performance Based on a Digital Honeycomb Metamaterial Structure for Multiple Charging Locations
Bui Huu Nguyen,
Pham Thanh Son,
Le Thi Hong Hiep,
Nguyen Hai Anh,
Do Khanh Tung,
Bui Xuan Khuyen,
Bui Son Tung,
Vu Dinh Lam,
Haiyu Zheng,
Liangyao Chen,
YoungPak Lee
Affiliations
Bui Huu Nguyen
Department of Physics, Hanoi University of Mining and Geology, Hanoi 100000, Vietnam
Pham Thanh Son
Faculty of Electronics Engineering, Hanoi University of Industry, Hanoi 100000, Vietnam
Le Thi Hong Hiep
Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
Nguyen Hai Anh
Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
Do Khanh Tung
Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
Bui Xuan Khuyen
Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
Bui Son Tung
Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
Vu Dinh Lam
Faculty of Materials Science and Energy, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam
Haiyu Zheng
Department of Physics and Quantum Photonic Science Research Center, Hanyang University, Seoul 04763, Republic of Korea
Liangyao Chen
Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China
YoungPak Lee
Department of Physics and Quantum Photonic Science Research Center, Hanyang University, Seoul 04763, Republic of Korea
Enhancing the efficiency is an essential target of the wireless power transfer (WPT) technology. Enabling the WPT systems requires careful control to prevent power from being transferred to unintended areas. This is essential in improving the efficiency and minimizing the flux leakage that might otherwise occur. Selective field localization can effectively reduce the flux leakage from the WPT systems. In this work, we propose a method using a digital honeycomb metamaterial structure that has a property operation as a function of switching between 0 and 1 states. These cavities were created by strongly confining the field by using a hybridization bandgap that arose from wave interaction with a two-dimensional array of local resonators on the metasurface. A WPT efficiency of 64% at 13.56 MHz was achieved by using the metamaterial and improved to 60% compared to the system without the metamaterial with an area ratio of Rx:Tx~1:28. Rx is the receiver coil, and Tx is the transmitter one.
