TY - GEN
T1 - Exploring Generalized PT-Symmetry for Efficient Wireless Power Transfer
AU - Wu, Yuhao
AU - Kang, Lei
AU - Werner, Pingjuan L.
AU - Werner, Douglas H.
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - A wireless power transfer (WPT) system of dynamically high and stable power transfer efficiency is proposed based on generalized parity-time (GPT) symmetry. By introducing a saturable gain, gsat, GPT-symmetry can be reconstructed in non-Hermitian systems dominated by intrinsically unbalanced coupling. The parity of the system can be analyzed by a topology decomposition approach. In the coupling parametric space, a global GPT-symmetric eigenstate is observed, and the spontaneous phase transition of the local GPT-symmetric eigenstates is identified on the exceptional contour. A band theory interpretation is proposed to analyze the efficiency-compromised states. Our study shows that the global GPT symmetric state corresponds to an efficient and stable power transfer across the distinct coupling regions, which provides insight into practical WPT systems involving asymmetric coupling.
AB - A wireless power transfer (WPT) system of dynamically high and stable power transfer efficiency is proposed based on generalized parity-time (GPT) symmetry. By introducing a saturable gain, gsat, GPT-symmetry can be reconstructed in non-Hermitian systems dominated by intrinsically unbalanced coupling. The parity of the system can be analyzed by a topology decomposition approach. In the coupling parametric space, a global GPT-symmetric eigenstate is observed, and the spontaneous phase transition of the local GPT-symmetric eigenstates is identified on the exceptional contour. A band theory interpretation is proposed to analyze the efficiency-compromised states. Our study shows that the global GPT symmetric state corresponds to an efficient and stable power transfer across the distinct coupling regions, which provides insight into practical WPT systems involving asymmetric coupling.
UR - https://www.scopus.com/pages/publications/85172412360
UR - https://www.scopus.com/pages/publications/85172412360#tab=citedBy
U2 - 10.1109/USNC-URSI52151.2023.10238002
DO - 10.1109/USNC-URSI52151.2023.10238002
M3 - Conference contribution
AN - SCOPUS:85172412360
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 537
EP - 538
BT - 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, AP-S/URSI 2023
Y2 - 23 July 2023 through 28 July 2023
ER -