Rectifier Design Challenges for RF Wireless Power Transfer and Energy Harvesting Systems

Collado, Ana; Daskalakis, Spyridon Nektarios; Niotaki, Kyriaki; Martínez, Regina; Bolos, Ferran; Georgiadis, Apostolos

doi:10.13164/re.2017.0411

Cited by 19 publications

(7 citation statements)

References 18 publications

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“…Due to safety considerations, RF-based WPT technique cannot be employed to radiate EM waves of high magnitudes of power, thus restricting the full exploitation of this technology and bringing restrictions to the charging coverage of the power transmitter. Safety and security issues surrounding RF-WPT are robustly discussed in Liu et al, 73 Collado et al, 87 Li et al, 88 and Dai et al 89 Li et al 88 discussed the vulnerabilities associated with RF-based WPT channel (as there is no encryption or authentication of the wirelessly transmitted energy), thus raising users’ safety and security concerns. In a bid to quench the thirst of power-hungry sensor devices, there may be cases of more deployments of power transmitters across the networks.…”

Section: Opportunities and Challenges Of Eh-wpt In Dsnsmentioning

confidence: 99%

“…Therefore, it is expedient to optimize scheduling operations of ETs and data collectors to minimize cost. In Ijemaru et al, 5 Liu et al, 73 Collado et al, 87 and Dai et al, 89 a simplified safe charger scheduling scheme was proposed whereby power chargers are scheduled to recharge the energy-hungry devices without accommodating the risks inherent in RF radiation. The goal is to maximize charging efficiency so that more charging energy can be harvested at a normal threshold value of EM radiation.…”

Section: Scheduling Problemsmentioning

confidence: 99%

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Wireless power transfer and energy harvesting in distributed sensor networks: Survey, opportunities, and challenges

Ijemaru

Ang

Seng

2022

International Journal of Distributed Sensor Networks

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Distributed sensor networks have emerged as part of the advancements in sensing and wireless technologies and currently support several applications, including continuous environmental monitoring, surveillance, tracking, and so on which are running in wireless sensor network environments, and large-scale wireless sensor network multimedia applications that require large amounts of data transmission to an access point. However, these applications are often hampered because sensor nodes are energy-constrained, low-powered, with limited operational lifetime and low processing and limited power-storage capabilities. Current research shows that sensors deployed for distributed sensor network applications are low-power and low-cost devices characterized with multifunctional abilities. This contributes to their quick battery drainage, if they are to operate for long time durations. Owing to the associated cost implications and mode of deployments of the sensor nodes, battery recharging/replacements have significant disadvantages. Energy harvesting and wireless power transfer have therefore become very critical for applications running for longer time durations. This survey focuses on presenting a comprehensive review of the current literature on several wireless power transfer and energy harvesting technologies and highlights their opportunities and challenges in distributed sensor networks. This review highlights updated studies which are specific to wireless power transfer and energy harvesting technologies, including their opportunities, potential applications, limitations and challenges, classifications and comparisons. The final section presents some practical considerations and real-time implementation of a radio frequency–based energy harvesting wireless power transfer technique using Powercast™ power harvesters, and performance analysis of the two radio frequency–based power harvesters is discussed. Experimental results show both short-range and long-range applications of the two radio frequency–based energy harvesters with high power transfer efficiency.

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Section: Opportunities and Challenges Of Eh-wpt In Dsnsmentioning

confidence: 99%

Section: Scheduling Problemsmentioning

confidence: 99%

Wireless power transfer and energy harvesting in distributed sensor networks: Survey, opportunities, and challenges

Ijemaru

Ang

Seng

2022

International Journal of Distributed Sensor Networks

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“…Students with an interest in RF electronics could investigate the design of a rectifier circuit suitable for a WPT system. 16 (vi) Finally, it is also possible to design WPT systems that capacitively couple a transmitter and receiver via electric fields. 17…”

Section: Discussionmentioning

confidence: 99%

Non-radiative mid-range wireless power transfer: An experiment for senior physics undergraduates

Delichte

Lü

Bobowski

2018

American Journal of Physics

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A wireless power transfer experiment suitable for senior physics undergraduates that operates between 3 and 4 MHz is described and demonstrated in detail. The apparatus consists of a pair of identical resonant coils that can be moved relative to one another. A signal generator circuit is inductively coupled to the transmitting coil using a single loop of wire. Likewise, a single loop of wire couples the receiving coil to a load impedance. A matching circuit was used to tune the impedance of the system of coupled resonators to match the 50-Ω output impedance of the signal generator. A low-cost vector network analyzer was used to characterize the system performance as the distance between the pair of coils was changed. When the distance between the transmitting and receiving coils was small, a double resonance emerged. The frequency difference between the pair resonances was inversely proportional to the distance between the coils. After the system was fully characterized, it was operated with up to 20 W of incident power. Our measurements revealed that, at weak coupling, the fraction of the incident power lost to radiation increases linearly with the distance between the coils. Finally, we were able to transmit enough power to dimly light a 60-W incandescent light bulb.

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“…However, due to the low power density of the RF signal, the DC output voltage of the VM could be not as high as enough to supply energy for charging mobile electric devices (MEDs) such as UAVs. In order to overcome the above drawbacks, several methods are proposed for improving the VM circuit topologies in which the aim is improving conversion efficiency from ambient RF power to direct-current(DC) voltage at the given frequency band to power the low power devices/circuits such as the design of multiband and broadband rectifier [8], the choice of the number of stages [9, 10], etc.…”

Section: Related Workmentioning

confidence: 99%

Advanced Hybrid Energy Harvesting Systems for Unmanned Ariel Vehicles (UAVs)

Nguyen¹,

Quyen²,

Le³

et al. 2020

Adv. sci. technol. eng. syst. j.

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The recent use of rotary-wing unmanned aerial vehicles (UAVs) has gained significant interest and continuously been implemented since they are used across the world for civilian, commercial, as well as military applications. The drawback of UAVs is the fight-time due to the limited battery capacity. Therefore, energy harvesting (EH), captured energy from the ambient environment is one of the effective measures to prolong the flight time for UAVs. This paper proposes the hybrid EH system, which can simultaneously harvest power from solar and radio frequency (RF) energy sources to significantly improve the energy issues for endurance longer flight UAVs. A 7-stage voltage multiplier circuit of the stand-alone RF-EH system is designed and simulated in this work. The stand-alone solar harvester is a solar panel. The DC output voltage from both of two energy sources is passed through a DC-DC boost converter and stabilizer. Simulation results can be deployed to power for the battery of UAVs in practice.

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Rectifier Design Challenges for RF Wireless Power Transfer and Energy Harvesting Systems

Cited by 19 publications

References 18 publications

Wireless power transfer and energy harvesting in distributed sensor networks: Survey, opportunities, and challenges

Wireless power transfer and energy harvesting in distributed sensor networks: Survey, opportunities, and challenges

Non-radiative mid-range wireless power transfer: An experiment for senior physics undergraduates

Advanced Hybrid Energy Harvesting Systems for Unmanned Ariel Vehicles (UAVs)

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