Magnetic Resonant Beamforming for Secured Wireless Power Transfer

Sun, Hongru; Lin, Hai; Zhu, Fengchao; Gao, Feifei

doi:10.1109/lsp.2017.2703105

Cited by 21 publications

(6 citation statements)

References 15 publications

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“…However, it was only until recently that an ultrasound phased array system has been used to enhance the performance of through-air acoustic WPT [ 93 ]. Additionally, in the domain of magnetic resonance coupling, beamforming has been introduced to increase the power transfer efficiency [ 94 , 95 , 96 , 97 ]. One could argue that laser-based power transfer which happens in a focused beam in fact also implements a beamsteering approach.…”

Section: Range Power and Efficiency-increasing Technologiesmentioning

confidence: 99%

Wireless Power Transfer: Systems, Circuits, Standards, and Use Cases

Mulders¹,

Delabie²,

Lecluyse³

et al. 2022

Sensors

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Wireless power transfer provides a most convenient solution to charge devices remotely and without contacts. R&D has advanced the capabilities, variety, and maturity of solutions greatly in recent years. This survey provides a comprehensive overview of the state of the art on different technological concepts, including electromagnetic coupled and uncoupled systems and acoustic technologies. Solutions to transfer mW to MW of power, over distances ranging from millimeters to kilometers, and exploiting wave concepts from kHz to THz, are covered. It is an attractive charging option for many existing applications and moreover opens new opportunities. Various technologies are proposed to provide wireless power to these devices. The main challenges reside in the efficiency and range of the transfer. We highlight innovation in beamforming and UV-assisted approaches. Of particular interest for designers is the discussion of implementation and operational aspects, standards, and safety relating to regulations. A high-level catalog of potential applications maps these to adequate technological options for wireless power transfer.

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Section: Range Power and Efficiency-increasing Technologiesmentioning

confidence: 99%

Wireless Power Transfer: Systems, Circuits, Standards, and Use Cases

Mulders¹,

Delabie²,

Lecluyse³

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…totally different parameters such as total receive power or minimum receive power among different receiver locations. Sun et al [66] have analyzed the magnetic MIMO related to multiple transmitting and receiving nodes, where by using magnetic beaming, a secured WPT can be attained for the expected user. Meanwhile, many industrial solutions are offered, among them WiTricity has been considered one of the most popular solutions [67].…”

Section: Prominent MI Signal Transmissionmentioning

confidence: 99%

Magnetic Induction Technology-Based Wireless Sensor Network for Underground Infrastructure, Monitoring Soil Conditions, and Environmental Observation Applications: Challenges and Future Aspects

Singh

et al. 2022

Journal of Sensors

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Wireless sensor networks (WSNs) especially with sensor nodes communicating with each other in medium other than air have been naive area of research since the last few years. In comparison to underwater communication, wireless underground sensor networks (WUSNs) are now being used in a large number of applications ranging from environmental observation, estimating chances of earthquake, communicating in underground tunnels or mines, and infrastructure monitoring to soil monitoring for agricultural purposes. In spite of all such promising applications, due to harsh and dynamically changing soil characteristics including soil type, water content in soil, and soil temperature, underground communication with conventional electromagnetic (EM) wave-based technology could not prove to be feasible for long-distance communication. Alternatively, due to magnetic permeability of soil being similar to air, magnetic induction- (MI-) based approach was adopted using magnetic coils as antenna for sensor nodes. Subsequently, MI waveguide and 3D coil mechanisms were considered to improve the system efficiency. Attributing to different characteristics of underlying transmission channels, communication protocols as well as architecture of MI-based WUSNS (MI-WUSNs) have been developed with different approaches. In this review paper, in addition to the latest advancements made for MI-WUSNs, closely associated areas of MI-WUSNs have also been explored. Additionally, research areas which are still open to be worked upon have been detailed out.

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“…The exact resonant frequency between the TX and RX is necessary, so the MIMO systems are not widely used in MRC WPT technology. However, Sun et al [7] propose an algorithm, which can maximise the power of the intended RX device while limiting the power received by the unintended device. The numerical results show that the algorithm can significantly improve the power efficiency.…”

Section: Mimo Prototypementioning

confidence: 99%

Survey on magnetic resonant coupling wireless power transfer technology for electric vehicle charging

Mou

Gladwin

Zhao

et al. 2019

IET Power Electronics

107

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2019) 'Survey on magnetic resonant coupling wireless power transfer technology for electric vehicle charging. ', IET power electronics.,12 (12). pp. 3005-3020.The full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.Abstract: Wireless Power Transfer technology (WPT) makes it possible to supply power through an air-gap, without the need for current-carrying wires. One important technique of WPT technology is magnetic resonant coupling (MRC) WPT. Based on the advantages of MRC WPT, such as safety and high power transfer efficiency over a long transmit distance, there are many possible applications of MRC WPT. This paper provides a comprehensive, state-of-the-art review of the MRC WPT technology and wireless charging for electric vehicle (EV). A comparative overview of MRC WPT system design which includes a detailed description of the prototypes, schematics, compensation circuit topologies (impedance matching), and international charging standards. In addition, this paper provides an overview of wireless EV charging including the static wireless EV charging and the dynamic wireless EV charging, which focuses on the coil design, power transfer efficiency, and current research achievement in literature.

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Magnetic Resonant Beamforming for Secured Wireless Power Transfer

Cited by 21 publications

References 15 publications

Wireless Power Transfer: Systems, Circuits, Standards, and Use Cases

Wireless Power Transfer: Systems, Circuits, Standards, and Use Cases

Magnetic Induction Technology-Based Wireless Sensor Network for Underground Infrastructure, Monitoring Soil Conditions, and Environmental Observation Applications: Challenges and Future Aspects

Survey on magnetic resonant coupling wireless power transfer technology for electric vehicle charging

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