Wireless Power Transfer for Medical Microsystems

Sun, Tianjia; Xie, Xiang; Wang, Zhihua

doi:10.1007/978-1-4614-7702-0

Cited by 116 publications

(74 citation statements)

References 10 publications

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“…The minimum ergodic capacity is obtained directly from (8), by setting N = 1. In that case, (8) reduces to (7).…”

Section: B Proof Of Lemmamentioning

confidence: 92%

“…Among the various forms of energy harvesting, the case of energy harvesting from radio frequency (RF) waves using rectenna elements is of particular interest [5]- [7]. This technique allows terminals with low energy requirements to be remotely powered, and thus provides a feasible solution for cases where remote energy supply is the only powering option (for example, in body area networks where devices are implanted into the human body such that accessing them is impossible [8]). Moreover, RF energy harvesting offers a continuous (albeit small) power supply, as it is neither weatherdependent nor relies on mechanical movement as external energy source [9].…”

Section: Introductionmentioning

confidence: 99%

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The impact of relay selection on the tradeoff between information transmission and wireless energy transfer

Michalopoulos

Suraweera

Schober

2014

2014 IEEE Global Communications Conference

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In certain applications, relay terminals can be employed to simultaneously deliver information and energy to a designated receiver and a radio frequency (RF) energy harvester, respectively. In such scenarios, the relay that is preferable for information transmission does not necessarily coincide with the relay with the strongest channel to the energy harvester, since the corresponding channels fade independently. Relay selection thus entails a tradeoff between the efficiency of the information transfer to the receiver and the amount of energy transferred to the energy harvester. The study of this tradeoff is the subject on which this work mainly focuses. We propose a relay selection policy that optimizes the quality of information transmission for a given energy transfer constraint. Additionally, we propose two suboptimal relay selection methods that apply to scenarios with limited availability of channel state information and facilitate closed-form analytical results. We conduct a performance analysis that sheds some light on the tradeoff between ergodic capacity and wireless energy transfer, and we prove that the optimal relay selection policy optimizes also other performance metrics for a given energy transfer, such as the outage probability and the error probability.

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“…The minimum ergodic capacity is obtained directly from (8), by setting N = 1. In that case, (8) reduces to (7).…”

Section: B Proof Of Lemmamentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

The impact of relay selection on the tradeoff between information transmission and wireless energy transfer

Michalopoulos

Suraweera

Schober

2014

2014 IEEE Global Communications Conference

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“…For example, when the resonant frequency is relatively low (less than 5 MHz) and the transfer range is short (for example, 5 cm), the technique is near field. When the resonant frequency is 900 MHz and the range of power transfer is more than 2 m, the technique is characterized as far-field power transfer [48]. Microwaves, RF, photoelectric, laser, and acoustic can be classified as far-field energy transfer techniques, whereas inductive coupling and magnetic resonant coupling can be considered near-field techniques.…”

Section: Classification Of Near-field Wireless Power Transfer Techniquesmentioning

confidence: 99%

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

et al. 2017

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Abstract:Traditional power supply cords have become less important because they prevent large-scale utilization and mobility. In addition, the use of batteries as a substitute for power cords is not an optimal solution because batteries have a short lifetime, thereby increasing the cost, weight, and ecological footprint of the hardware implementation. Their recharging or replacement is impractical and incurs operational costs. Recent progress has allowed electromagnetic wave energy to be transferred from power sources (i.e., transmitters) to destinations (i.e., receivers) wirelessly, the so-called wireless power transfer (WPT) technique. New developments in WPT technique motivate new avenues of research in different applications. Recently, WPT has been used in mobile phones, electric vehicles, medical implants, wireless sensor network, unmanned aerial vehicles, and so on. This review highlights up-to-date studies that are specific to near-field WPT, which include the classification, comparison, and potential applications of these techniques in the real world. In addition, limitations and challenges of these techniques are highlighted at the end of the article.

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“…2 [7]. A wide range of linear and rotating IPTs for various technological applications has been proposed and used in industry [3,4,8,9,12]. Some examples of technological applications are shown below.…”

Section: Technological Ipt Systemsmentioning

confidence: 99%

Technological inductive power transfer systems

Madzharov

Nemkov

2017

Journal of Electrical Engineering

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Inductive power transfer is a very fast expanding technology with multiple design principles and practical implementations ranging from charging phones and computers to bionic systems, car chargers and continuous power transfer in technological lines. Only a group of devices working in near magnetic field is considered. This article is devoted to overview of different inductive power transfer (IPT) devices. The review of literature in this area showed that industrial IPT are not much discussed and examined. The authors have experience in design and implementation of several types of IPTs belonging to wireless automotive chargers and to industrial application group. Main attention in the article is paid to principles and design of technological IPTs K e y w o r d s: inductive power transfer, technological IPT, magnetic coupling, magnetic field lines, matching

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Wireless Power Transfer for Medical Microsystems

Cited by 116 publications

References 10 publications

The impact of relay selection on the tradeoff between information transmission and wireless energy transfer

The impact of relay selection on the tradeoff between information transmission and wireless energy transfer

Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review

Technological inductive power transfer systems

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