TY - JOUR
T1 - Near-Field Wireless Power Transfer for 6G Internet of Everything Mobile Networks
T2 - Opportunities and Challenges
AU - Zhang, Haiyang
AU - Shlezinger, Nir
AU - Guidi, Francesco
AU - Dardari, Davide
AU - Imani, Mohammadreza F.
AU - Eldar, Yonina C.
N1 - Funding Information:
This work was sponsored in part by the European Union's H2020 research and innovation program under grant No. 101000967, in part by the Air Force Office of Scientific Research under grant No. FA9550-18-1-0208, in part by the Israel Science Foundation under grant No. 0100101, and in part by the project Dipartimenti di Eccellenza, DEI-University of Bologna.
Publisher Copyright:
© 1979-2012 IEEE.
PY - 2022/3/1
Y1 - 2022/3/1
N2 - Radiating wireless power transfer (WPT) brings forth the possibility to cost-efficiently charge wireless devices without requiring a wiring infrastructure. As such, it is expected to play a key role in the deployment of limited-battery communicating devices, as part of the 6G-enabled Internet of Everything (IoE) vision. To date, radiating WPT technologies are mainly studied and designed assuming that the devices are located in the far-field region of the power radiating antenna, resulting in relatively low energy transfer efficiency. However, with the transition of 6G systems to mmWave frequencies combined with the use of large-scale antennas, future WPT devices are likely to operate in the radiating near-field (Fresnel) region. In this article, we provide an overview of the opportunities and challenges that arise from radiating near-field WPT. In particular, we discuss the possibility to realize beam focusing in near-field radiating conditions, and highlight its possible implications for WPT in future IoE networks. Furthermore, we overview some of the design challenges and research directions that arise from this emerging paradigm, including its simultaneous operation with wireless communications, radiating waveform considerations, hardware aspects, and operation with typical antenna architectures.
AB - Radiating wireless power transfer (WPT) brings forth the possibility to cost-efficiently charge wireless devices without requiring a wiring infrastructure. As such, it is expected to play a key role in the deployment of limited-battery communicating devices, as part of the 6G-enabled Internet of Everything (IoE) vision. To date, radiating WPT technologies are mainly studied and designed assuming that the devices are located in the far-field region of the power radiating antenna, resulting in relatively low energy transfer efficiency. However, with the transition of 6G systems to mmWave frequencies combined with the use of large-scale antennas, future WPT devices are likely to operate in the radiating near-field (Fresnel) region. In this article, we provide an overview of the opportunities and challenges that arise from radiating near-field WPT. In particular, we discuss the possibility to realize beam focusing in near-field radiating conditions, and highlight its possible implications for WPT in future IoE networks. Furthermore, we overview some of the design challenges and research directions that arise from this emerging paradigm, including its simultaneous operation with wireless communications, radiating waveform considerations, hardware aspects, and operation with typical antenna architectures.
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U2 - 10.1109/MCOM.001.2100702
DO - 10.1109/MCOM.001.2100702
M3 - Article
AN - SCOPUS:85127927040
SN - 0163-6804
VL - 60
SP - 12
EP - 18
JO - IEEE Communications Magazine
JF - IEEE Communications Magazine
IS - 3
ER -