TY - GEN
T1 - Stacked Metasurfaces for Misalignment Improvement of WPT System Using Spiral Resonators
AU - Ikeda, Yutaro
AU - Jiang, Xin
AU - Aboualalaa, Mohamed
AU - Barakat, Adel
AU - Yoshitomi, Kuniaki
AU - Pokharel, Ramesh K.
N1 - Funding Information:
ACKNOWLEDGMENT This work was supported in part by JSPS KAKENHI Grant Number: 21K04178, in part by the MIC/SCOPE Grant Number: 21452069, in part by the Foundation for Technology Promotion for Electronic Circuit Board, and in part by a research grant from The Murata Science Foundation.
Publisher Copyright:
© 2022 European Microwave Association.
PY - 2021
Y1 - 2021
N2 - The conventional inductive wireless power transfer (WPT) systems have a trade-off between transmission distance and size. Furthermore, when the transmitter and receiver go away from the line of sight, the performance due to this so-called misalignment will sharply drop. In this work, a new type of metasurfaces called stacked metasurface is proposed, and its effectiveness to mitigate above problems are studied experimentally. As a result, by using the proposed metasurface, we succeeded in achieving a transmission distance between the transmitter and the receiver of 70 mm, which is more than double than its original transmission distance without the metasurface when the maximum efficiency occurs. At this enhanced transmission distance, the efficiency of the WPT system has improved from 2% to 60%.
AB - The conventional inductive wireless power transfer (WPT) systems have a trade-off between transmission distance and size. Furthermore, when the transmitter and receiver go away from the line of sight, the performance due to this so-called misalignment will sharply drop. In this work, a new type of metasurfaces called stacked metasurface is proposed, and its effectiveness to mitigate above problems are studied experimentally. As a result, by using the proposed metasurface, we succeeded in achieving a transmission distance between the transmitter and the receiver of 70 mm, which is more than double than its original transmission distance without the metasurface when the maximum efficiency occurs. At this enhanced transmission distance, the efficiency of the WPT system has improved from 2% to 60%.
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U2 - 10.23919/EuMC50147.2022.9784281
DO - 10.23919/EuMC50147.2022.9784281
M3 - Conference contribution
AN - SCOPUS:85133022547
T3 - 2021 51st European Microwave Conference, EuMC 2021
SP - 257
EP - 260
BT - 2021 51st European Microwave Conference, EuMC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 51st European Microwave Conference, EuMC 2021
Y2 - 4 April 2022 through 6 April 2022
ER -