Wireless power harvesting with planar rectennas for 2.45 GHz RFIDs

Olgun, Uğur; Chen, Chi‐Chih; Volakis, John L.

doi:10.1109/ursi-emts.2010.5637008

Cited by 78 publications

(47 citation statements)

References 5 publications

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“…The maximum efficiency at -5 and 5 dBm input power levels are 76 and 74 % for a 10 kX load, respectively. This measured efficiency is higher than the efficiency reported in [17,34]. The RF to DC conversion efficiency becomes lower if the load resistance is varied from its optimum value.…”

Section: -Stages Charge Pumped Rectifiercontrasting

confidence: 59%

RF rectifiers for EM power harvesting in a Deep Brain Stimulating device

Hosain

Kouzani

Tye

et al. 2015

Australas Phys Eng Sci Med

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A passive deep brain stimulation (DBS) device can be equipped with a rectenna, consisting of an antenna and a rectifier, to harvest energy from electromagnetic fields for its operation. This paper presents optimization of radio frequency rectifier circuits for wireless energy harvesting in a passive head-mountable DBS device. The aim is to achieve a compact size, high conversion efficiency, and high output voltage rectifier. Four different rectifiers based on the Delon doubler, Greinacher voltage tripler, Delon voltage quadrupler, and 2-stage charge pumped architectures are designed, simulated, fabricated, and evaluated. The design and simulation are conducted using Agilent Genesys at operating frequency of 915 MHz. A dielectric substrate of FR-4 with thickness of 1.6 mm, and surface mount devices (SMD) components are used to fabricate the designed rectifiers. The performance of the fabricated rectifiers is evaluated using a 915 MHz radio frequency (RF) energy source. The maximum measured conversion efficiency of the Delon doubler, Greinacher tripler, Delon quadrupler, and 2-stage charge pumped rectifiers are 78, 75, 73, and 76 % at -5 dBm input power and for load resistances of 5-15 kΩ. The conversion efficiency of the rectifiers decreases significantly with the increase in the input power level. The Delon doubler rectifier provides the highest efficiency at both -5 and 5 dBm input power levels, whereas the Delon quadrupler rectifier gives the lowest efficiency for the same inputs. By considering both efficiency and DC output voltage, the charge pump rectifier outperforms the other three rectifiers. Accordingly, the optimised 2-stage charge pumped rectifier is used together with an antenna to harvest energy in our DBS device.

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Section: -Stages Charge Pumped Rectifiercontrasting

confidence: 59%

RF rectifiers for EM power harvesting in a Deep Brain Stimulating device

Hosain

Kouzani

Tye

et al. 2015

Australas Phys Eng Sci Med

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“…4. To date, the growth in technology has paved the way for The plate antennas are popular and have many applications [27,34,38]; on-chip antennas are preferred for small and compact applications. Recently, many publications addressed wide-band and multi-band antennas.…”

Section: Antenna/rectenna Designmentioning

confidence: 99%

Section: Impedance Matching Networkmentioning

confidence: 99%

RF power harvesting: a review on designing methodologies and applications

Tran

Cha

Park

2017

Micro and Nano Syst Lett

235

146

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Wireless power transmission was conceptualized nearly a century ago. Certain achievements made to date have made power harvesting a reality, capable of providing alternative sources of energy. This review provides a summ ary of radio frequency (RF) power harvesting technologies in order to serve as a guide for the design of RF energy harvesting units. Since energy harvesting circuits are designed to operate with relatively small voltages and currents, they rely on state-of-the-art electrical technology for obtaining high efficiency. Thus, comprehensive analysis and discussions of various designs and their tradeoffs are included. Finally, recent applications of RF power harvesting are outlined.

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“…Wireless power transfer technology, where the receiver can scavenge energy from the transmitted radio signal, has recently attracted much attention in academia and industry [2][3][4]. Simultaneous wireless information and power transfer is very convenient for mobile terminals, because it makes use of the RF signals in two ways: for transferring power as well as information.…”

Section: Introductionmentioning

confidence: 99%

“…where 3  is the broadcasting duration of the relay node in the third phase. Until now, the rate in DF cooperative network with energy harvesting can be presented as:…”

mentioning

confidence: 99%

Optimal Power Control and Time Allocation for Wireless-powered Relay Networks

Xiao

2016

IJFGCN

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In this letter, optimal power control and time resource allocation schemes are considered in wireless relay network, which two users communicate with each other assisted by an energy harvesting relay that gathers energy from the received signal by applying a time switching scheme and forwards the received signal by using the harvesting energy. It is focused on the optimal power control and time resource allocation for the system to cooperate the power transfer and information transmission among three nodes in Decode-and-Forward (DF)

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Wireless power harvesting with planar rectennas for 2.45 GHz RFIDs

Cited by 78 publications

References 5 publications

RF rectifiers for EM power harvesting in a Deep Brain Stimulating device

RF rectifiers for EM power harvesting in a Deep Brain Stimulating device

RF power harvesting: a review on designing methodologies and applications

Optimal Power Control and Time Allocation for Wireless-powered Relay Networks

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