Harvesting Wireless Power: Survey of Energy-Harvester Conversion Efficiency in Far-Field, Wireless Power Transfer Systems

Valenta, Christopher R.; Durgin, Gregory D.

doi:10.1109/mmm.2014.2309499

Cited by 729 publications

(54 citation statements)

References 54 publications

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“…The sensitivity of the receiver and the energy transfer efficiency are the main concerns in any WPT system, and they eventually dictate the RF energy harvesting (EH) system's performance, its range, and the overall reliability. The sensitivity depends on the minimum power that is required in order to power up the semiconductor devices used [4] in the EH circuit. On the other hand, RF-to-DC efficiency depends on the receiving antenna performance, the impedance matching network between the antenna and the rectifying circuit, and the overall power conversion efficiency of the rectifier's subsequent stage, that is, the voltage multiplier.…”

Section: Introductionmentioning

confidence: 99%

“…To convert RF to DC power, the RF energy harvesting circuits are generally implemented using semiconductor-based rectifying elements such as CMOS diodes with transistors [18] or Schottky diodes, due to their low cost and low power requirements [4]. The most common Schottky diodes include Skywork's SMS [19] and Broadcom's HSMS [20] series of surface mount devices (SMD).…”

Section: Introductionmentioning

confidence: 99%

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Voltage-Doubler RF-to-DC Rectifiers for Ambient RF Energy Harvesting and Wireless Power Transfer Systems

Quddious¹,

Antoniades²,

Vryonides³

et al. 2020

Recent Wireless Power Transfer Technologies

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Wireless Power Transfer (WPT) is promoted as a key enabling technology (KET) for the widespread use of batteryless Internet of Things (IoT) devices and for 5G wireless networks. RF-to-DC rectifiers are essential components for the exploitation of either ambient RF power or wireless transmitted power from a dedicated source. There are several alternative rectifier topologies which can be selected depending on the desired wireless charging scenario and may include one or more diodes. For full rectification, a minimum of two diodes are needed. The current chapter discusses various implementations of voltage-doubler designs, which revolve around the basic topology of two diodes and two capacitors. Schottky diodes are usually used, in combination with lumped capacitors. Off-the-shelf diodes include both separate diodes and integrated voltage-doubler topologies in a single package. Rectifiers are inherently narrowband, non-linear devices, and the RF-to-DC efficiency, which is usually the figure of merit, depends non-linearly on both the termination load and the received RF power. The bandwidth of the rectifier depends on the preceding matching network.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Voltage-Doubler RF-to-DC Rectifiers for Ambient RF Energy Harvesting and Wireless Power Transfer Systems

Quddious¹,

Antoniades²,

Vryonides³

et al. 2020

Recent Wireless Power Transfer Technologies

View full text Add to dashboard Cite

show abstract

“…RF energy harvesting has been increasingly found in wide range of applications, such as wireless sensor networks (WSN) and wireless body area networks (WBAN) [1,2]. In circuit systems, RF energy harvesting system can convert RF power to DC supply power.…”

Section: Introductionmentioning

confidence: 99%

A high efficiency CMOS RF rectifier for RF energy harvesting with dynamic self-body-biasing technique

Liu

et al. 2019

IEICE Electron. Express

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In this paper, a radio frequency (RF) rectifier is proposed for RF energy harvesting. The proposed rectifier adopts a dynamic self-bodybiasing technique to modulate the threshold voltage of MOSFET. It can improve the power conversion efficiency (PCE) of the rectifier. Designed with SMIC 0.18 µm CMOS standard process, simulation results indicate that the proposed rectifier has higher PCE than conventional cross coupled rectifier when the input power is larger than −14 dBm. The PCE of proposed rectifier achieves 72.3% when the input power is −3.7 dBm.

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“…However, by incorporating WPT techniques, it is possible to provide the necessary power that nano machines require for wireless data transmission. Nikola Tesla described the freedom to transfer energy between two points without the need for a physical connection to a power source as an "all-surpassing importance to man" [19] and [20]. Power transmission by radio waves dates back to the early work of Heinrich Hertz [21], where he demonstrated electromagnetic wave propagation in free space using a complete system with a spark gap to generate high-frequency power and to detect it at the receiving end.…”

Section: Introductionmentioning

confidence: 99%

Manhole Cover Detection from Natural Scene Based on Imaging Environment Perception

2019

KSII TIIS

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Advancements in nanotechnology and novel nano materials in the past decade have provided a set of tools that can be used to design and manufacture integrated nano devices, which are capable of performing sensing, computing, data storing and actuation. In this paper, we have proposed cooperative nano communication using Power Switching Relay (PSR) Wireless Power Transfer (WPT) protocol and Time Switching Relay (TSR) WPT protocol over independent identically distributed (i.i.d.) Rayleigh fading channels in the Terahertz (THz) Gap frequency band to increase the range of transmission. Outage Probability (OP) performances for the proposed cooperative nano communication networks have been evaluated for the following scenarios: A) A single decode-and-forward (DF) relay for PSR protocol and TSR protocol, B) DF multi-relay network with best relay selection (BRS) for PSR protocol and TSR protocol, and C) DF multi-relay network with multiple DF hops with BRS for PSR protocol and TSR protocol. The results have shown that the transmission distance can be improved significantly by employing DF relays with WPT. They have also shown that by increasing the number of hops in a relay the OP performance is only marginally degraded. The analytical results have been verified by Monte-Carlo simulations.

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Harvesting Wireless Power: Survey of Energy-Harvester Conversion Efficiency in Far-Field, Wireless Power Transfer Systems

Cited by 729 publications

References 54 publications

Voltage-Doubler RF-to-DC Rectifiers for Ambient RF Energy Harvesting and Wireless Power Transfer Systems

Voltage-Doubler RF-to-DC Rectifiers for Ambient RF Energy Harvesting and Wireless Power Transfer Systems

A high efficiency CMOS RF rectifier for RF energy harvesting with dynamic self-body-biasing technique

Manhole Cover Detection from Natural Scene Based on Imaging Environment Perception

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