Proceedings ArticleDOI
Magnetic MIMO: how to charge your phone in your pocket
Jouya Jadidian,Dina Katabi +1 more
- pp 495-506
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TLDR
It is shown that mobile phones can be charged remotely, while in the user's pocket by applying the concept of MIMO beamforming, and MagMIMO, a new system for wireless charging of cell phones and portable devices is designed.Abstract:
This paper bridges wireless communication with wireless power transfer. It shows that mobile phones can be charged remotely, while in the user's pocket by applying the concept of MIMO beamforming. However, unlike MIMO beamforming in communication systems which targets the radiated field, we transfer power by beamforming the non-radiated magnetic field and steering it toward the phone. We design MagMIMO, a new system for wireless charging of cell phones and portable devices. MagMIMO consumes as much power as existing solutions, yet it can charge a phone remotely without being removed from the user's pocket. Furthermore, the phone need not face the charging pad, and can charge independently of its orientation. We have built MagMIMO and demonstrated its ability to charge the iPhone and other smart phones, while in the user's pocket.read more
Citations
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Wireless Networks With RF Energy Harvesting: A Contemporary Survey
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Wireless Charging Technologies: Fundamentals, Standards, and Network Applications
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Communications and Signals Design for Wireless Power Transmission
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Communications and Signals Design for Wireless Power Transmission
TL;DR: This paper focuses on the state-of-the-art communication and signal processing techniques that can be applied to tackle the main challenges in designing contemporary radiative WPT systems and points out directions that are promising for future research.
Journal ArticleDOI
Review of Near-Field Wireless Power and Communication for Biomedical Applications
TL;DR: The knowledge reviewed in the paper could provide intuition in the design of various wireless and mobile systems such as wireless body area networks, small-cell 5G cellular, as well as in-body biomedical applications, especially for efficient power and data management and higher security.
References
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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
TL;DR: 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%.
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.
Proceedings ArticleDOI
Fundamentals of wireless communications
TL;DR: A basic tutorial on the types of radio frequency communications and the benefits and liabilities of each are given and specific topics to be explored will be licensed versus unlicensed frequencies, distance between remote radios and base stations, and communications architectures.
Proceedings ArticleDOI
Fundamentals of wireless communications
TL;DR: A basic tutorial on the types of radio frequency communications and the benefits and liabilities of each are given and specific topics to be explored will be licensed verses unlicensed frequencies, distance between remote radios and base stations, and communications architectures.
Journal ArticleDOI
Simultaneous mid-range power transfer to multiple devices
TL;DR: Karalis et al. as mentioned in this paper explored the effect of adding multiple devices on the tuning and overall efficiency of the power transfer, and demonstrate this scheme experimentally for the case of coupling objects of different sizes.