Wireless power transfer based on novel physical concepts

ABSTRACT Wireless power transfer—the transmission of electromagnetic energy without physical connectors such as wires or waveguides—typically exploits electromagnetic field control methods

that were first proposed decades ago and requires some essential parameters (such as efficiency) to be sacrificed in favour of others (such as stability). In recent years, novel approaches

to electromagnetic field manipulation have been developed that can be used to create advanced forms of wireless power transfer. Here we review the development of novel physical effects and

materials for wireless power transfer. We explore techniques based on coherent perfect absorption, parity–time symmetry and exceptional points, and on-site power generation. We also explore

the use of metamaterials and metasurfaces in wireless power transfer, and the use of acoustic power transfer. Finally, we highlight potential routes for the further development of wireless

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support SIMILAR CONTENT BEING VIEWED BY OTHERS MAXIMUM GAIN ENHANCEMENT IN WIRELESS POWER TRANSFER USING ANISOTROPIC METAMATERIALS Article Open access 12 May 2023 DIRECT OBSERVATION OF THE

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is supported in part by the Natural Science Foundation of China (62101154) and Natural Science Foundation of Heilongjiang Province of China (LH2021F013). The section ‘New concepts of WPT’

was supported by the Russian Science Foundation (project 20-72-10090), and the section ‘Metamaterials and metasurfaces for WPT’ was supported by the Russian Science Foundation (project

21-79-30038). This work is partially supported by the Academy of Finland (Academy of Finland postdoctoral researcher grant 333479). M.S. acknowledges support from the Fundamental Research

Funds for the Central Universities (3072021CFJ0802) and Research Funds for the Key Laboratory of Advanced Marine Communication and Information Technology of the Ministry of Industry and

Information Technology (AMCIT21V2). AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * College of Information and Communication Engineering, Harbin Engineering University, Harbin, China Mingzhao

Song * School of Physics and Engineering, ITMO University, Saint Petersburg, Russia Mingzhao Song, Esmaeel Zanganeh, Mariia Krasikova, Pavel Smirnov, Pavel Belov, Polina Kapitanova & 

Constantin Simovski * Department of Electronics and Nanoengineering, Aalto University, Aalto, Finland Prasad Jayathurathnage, Constantin Simovski & Sergei Tretyakov * Department of

Electrical and Computer Engineering, Florida International University, Miami, FL, USA Alex Krasnok Authors * Mingzhao Song View author publications You can also search for this author

inPubMed Google Scholar * Prasad Jayathurathnage View author publications You can also search for this author inPubMed Google Scholar * Esmaeel Zanganeh View author publications You can also

search for this author inPubMed Google Scholar * Mariia Krasikova View author publications You can also search for this author inPubMed Google Scholar * Pavel Smirnov View author

publications You can also search for this author inPubMed Google Scholar * Pavel Belov View author publications You can also search for this author inPubMed Google Scholar * Polina

Kapitanova View author publications You can also search for this author inPubMed Google Scholar * Constantin Simovski View author publications You can also search for this author inPubMed 

Google Scholar * Sergei Tretyakov View author publications You can also search for this author inPubMed Google Scholar * Alex Krasnok View author publications You can also search for this

author inPubMed Google Scholar CONTRIBUTIONS M.S., P.J., C.S., S.T. and A.K. wrote the sections ‘Conventional WPT systems’ and ‘New concepts of WPT’. P.J., C.S., S.T. and A.K. wrote the

section ‘Scattering anomalies for WPT’. M.S., E.Z. and P.B. wrote the section ‘Metamaterials and metasurfaces for WPT’. M.K., P.S., P.B. and P.K. wrote the section ‘Acoustic WPT’. All

authors contributed to writing ‘Outlook’ and to the editing of the paper. A.K. managed the project. CORRESPONDING AUTHORS Correspondence to Mingzhao Song or Alex Krasnok. ETHICS DECLARATIONS

COMPETING INTERESTS The authors declare no competing interests. ADDITIONAL INFORMATION PEER REVIEW INFORMATION _Nature Electronics_ thanks the anonymous reviewers for their contribution to

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INFORMATION SUPPLEMENTARY INFORMATION Supplementary Discussion and Fig. 1. RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Song, M., Jayathurathnage, P.,

Zanganeh, E. _et al._ Wireless power transfer based on novel physical concepts. _Nat Electron_ 4, 707–716 (2021). https://doi.org/10.1038/s41928-021-00658-x Download citation * Received: 18

April 2021 * Accepted: 20 September 2021 * Published: 22 October 2021 * Issue Date: October 2021 * DOI: https://doi.org/10.1038/s41928-021-00658-x SHARE THIS ARTICLE Anyone you share the

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