Journal ArticleDOI
Wireless Power Transfer via Strongly Coupled Magnetic Resonances
Andre B. Kurs,Aristeidis Karalis,Robert Moffatt,John D. Joannopoulos,Peter H. Fisher,Marin Soljacic +5 more
TLDR
A quantitative model is presented describing the power transfer of self-resonant coils in a strongly coupled regime, which matches the experimental results to within 5%.Abstract:
Using self-resonant coils in a strongly coupled regime, we experimentally demonstrated efficient nonradiative power transfer over distances up to 8 times the radius of the coils We were able to transfer 60 watts with ∼40% efficiency over distances in excess of 2 meters We present a quantitative model describing the power transfer, which matches the experimental results to within 5% We discuss the practical applicability of this system and suggest directions for further studyread more
Citations
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Journal ArticleDOI
Wireless Networks With RF Energy Harvesting: A Contemporary Survey
TL;DR: This paper presents an overview of the RF-EHNs including system architecture, RF energy harvesting techniques, and existing applications, and explores various key design issues according to the network types, i.e., single-hop networks, multiantenna networks, relay networks, and cognitive radio networks.
Journal ArticleDOI
Analysis, Experimental Results, and Range Adaptation of Magnetically Coupled Resonators for Wireless Power Transfer
TL;DR: A circuit model is presented along with a derivation of key system concepts, such as frequency splitting, the maximum operating distance (critical coupling), and the behavior of the system as it becomes undercoupled, including the introduction of key figures of merit.
Journal ArticleDOI
Wireless Power Transfer for Electric Vehicle Applications
Siqi Li,Chunting Chris Mi +1 more
TL;DR: In this paper, the authors reviewed the technologies in the wireless power transfer (WPT) area applicable to electric vehicle (EV) wireless charging, and the obstacles of charging time, range, and cost can be easily mitigated.
Journal ArticleDOI
Body Area Networks: A Survey
TL;DR: This paper provides a detailed investigation of sensor devices, physical layer, data link layer, and radio technology aspects of BAN research, and presents a taxonomy of B Ban projects that have been introduced/proposed to date.
Journal ArticleDOI
A Critical Review of Recent Progress in Mid-Range Wireless Power Transfer
TL;DR: In this paper, a critical review outlines recent magneto-inductive research activities on wireless power transfer with the transmission distance greater than the transmitter coil dimension, and summarizes the operating principles of a range of wireless power research into the maximum power transfer and the maximum energy efficiency principles.
References
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Journal ArticleDOI
Efficient wireless non-radiative mid-range energy transfer
TL;DR: In this article, the physical phenomenon of long-lifetime resonant electromagnetic states with localized slowly-evanescent field patterns was investigated to transfer energy efficiently over non-negligible distances even in the presence of extraneous environmental objects.
Journal ArticleDOI
A Chiral Route to Negative Refraction
TL;DR: The introduction of a single chiral resonance leads to negative refraction of one polarization, resulting in improved and simplified designs of negatively refracting materials and opening previously unknown avenues of investigation in this fast-growing subject.
Journal ArticleDOI
Observation of strong coupling between one atom and a monolithic microresonator
Takao Aoki,Barak Dayan,E. Wilcut,Warwick P. Bowen,Warwick P. Bowen,A. S. Parkins,A. S. Parkins,Tobias J. Kippenberg,Tobias J. Kippenberg,Kerry J. Vahala,H. J. Kimble +10 more
TL;DR: Strong coupling is achieved, with the rate of coherent coupling exceeding the dissipative rates of the atom and the cavity, and this work opens the way for investigations of optical processes with single atoms and photons in lithographically fabricated microresonators.
Journal ArticleDOI
A new approach to power supplies for robots
A. Esser,Hans-Christoph Skudelny +1 more
TL;DR: In this paper, a cableless power supply system for multiaxis robots is proposed, which consists of two halves of a ferrite pot core containing the primary and secondary windings, respectively.