Design and optimisation of compact RF energy harvesting device for smart applications

Ajmal, Tahmina; Dyo, Vladimir; Allen, Ben; Jazani, David; Ivanov, I.

doi:10.1049/el.2013.3434

Cited by 23 publications

(14 citation statements)

References 5 publications

(6 reference statements)

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“…Given that the network traffic of small-cells and TV is typically higher than that of macro-BSs, it is advisable to focus crowd energy harvesting in these bands for relaying.In Fig. 4(top), the freespace (LoS) results match those found in existing field test observations.For example, it was found that 100 µW can be achieved at a 20km distance from a 150kW TV station [9]. Looking ahead, we do not expect the node density for MacroBSs and Wi-Fi hubs to change over the coming years, but the estimates are that the Femto-BS density will increase by at least 20 fold.…”

Section: ) Upper-bound (Full Spectrum Utilization) With Dualslope Pamentioning

confidence: 97%

Simultaneous Information and Energy Flow for IoT Relay Systems with Crowd Harvesting

et al. 2016

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Abstract-It is expected that the number of wireless devices will grow rapidly over the next few years due to the growing proliferation of Internet-of-Things (IoT). In order to improve the energy efficiency of information transfer between small devices, we review state-of-the-art research in simultaneous wireless energy and information transfer, especially for relay based IoT systems. In particular, we analyze simultaneous informationand-energy transfer from the source node, and the design of time-switching and power-splitting operation modes, as well as the associated optimization algorithms. We also investigate the potential of crowd energy harvesting from transmission nodes that belong to multiple radio networks. The combination of source and crowd energy harvesting can greatly reduce the use of battery power and increase the availability and reliability for relaying. We provide insight into the fundamental limits of crowd energy harvesting reliability based on a case study using real city data. Furthermore, we examine the optimization of transmissions in crowd harvesting, especially with the use of node collaboration while guaranteeing Quality-of-Service (QoS).

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Section: ) Upper-bound (Full Spectrum Utilization) With Dualslope Pamentioning

confidence: 97%

Simultaneous Information and Energy Flow for IoT Relay Systems with Crowd Harvesting

et al. 2016

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“…However, the sensitivity of the energy harvesting system was not identified. A medium wave relatively sensitive single band rectenna was proposed operating at1.27 MHz [12] and it was demonstrated that the scavenger can operate 10 km away from a 50 kW AM broadcasting station. However, the reflection properties of the antenna and rectifier were not provided to clarify their findings and the efficiency was almost zero at low input power (<2 μW [−27 dBm]).Single band rectennas that operate in the UHF band are an efficient and cost-effective solution to power passive RFID systems.…”

Section: Related Prior Researchmentioning

confidence: 99%

CPW Fed Triangular Shaped upper Strip Patch Monopole Antenna for RF Energy Harvesting

Maindarkar¹

2019

IJRASET

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Worlds are looking for a renewable energy to replace current energy sources. Solar and wind renewable energy has been deployed for some years as one renewable energy in a few countries in a large scale. For a small scale renewable energy, he development in electromagnetic vitality reaping has great potential as one of the wellsprings of sustainable power source since the electromagnetic vitality is accessible constantly and all over the place (e.g., solar, wind, thermal and ocean wave). This paper presents a co-planer waveguide (CPW) fed triangular shaped upper strip patch monopole antenna for RF energy harvesting. It has been found that, the antenna can be used to make operating in multiband mode More than 100% (2-5.6GHz band) impedance bandwidth has been achieved for co-planer waveguide (CPW) fed triangular shaped upper strip patch monopole antenna design for RF energy harvesting. The proposed antenna has been simulated. Simulations have been carried out using commercially available HFSS (High Frequency Structure Simulator) based on finite element method.

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“…B Allen et al 80 investigated the harvesting of energy from AM Figure 9. Compact RF energy harvester for SHM applications: (a) Wang and Mortazawi 17 and (b) Ajmal et al 79 radio station signals to power low-power devices using a compact ferrite rod antenna. Dyo et al 81 and T Ajmal et al 79 designed and optimized compact ferrite rod antennas to harvest energy for WSNs.…”

Section: Rf Energymentioning

confidence: 99%

“…Compact RF energy harvester for SHM applications: (a) Wang and Mortazawi 17 and (b) Ajmal et al 79 radio station signals to power low-power devices using a compact ferrite rod antenna. Dyo et al 81 and T Ajmal et al 79 designed and optimized compact ferrite rod antennas to harvest energy for WSNs. Based on the results measured under actual environmental conditions, maximum power of 240 mW was harvested from a 150-kW AM station located 20-km away and used to power a WSN for smart applications.…”

Section: Rf Energymentioning

confidence: 99%

A survey on ambient energy sources and harvesting methods for structural health monitoring applications

Cao

2017

Advances in Mechanical Engineering

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Structural health monitoring is widely used for maintaining and monitoring various structures in different areas. In general, the structural health monitoring system life span depends on the capability of the batteries, but it can be increased by energy harvesting approaches to autonomously produce power. These autonomously powered structural health monitoring systems have received increasing attention over the past decades. This article reviews recent developments in the ambient energy sources and energy harvesting methods for structural health monitoring applications. First, the earliest and most common method of harvesting energy from sunlight and wind is discussed. Then, vibration and thermal gradient energy harvesting methods are reviewed together with their feasibilities. Finally, radio frequency energy harvesting, a unique method developed in recent years, is highlighted. A double-resonant coil ferrite rod antenna for radio frequency energy harvesting in medium frequency band is proposed. Simulation results indicate that the proposed double-resonant coil ferrite rod antenna can increase the gain by 2.8 dBi and the receiving voltage by 25.77% compared with a conventional single-resonant coil ferrite rod antenna.

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Design and optimisation of compact RF energy harvesting device for smart applications

Cited by 23 publications

References 5 publications

Simultaneous Information and Energy Flow for IoT Relay Systems with Crowd Harvesting

Simultaneous Information and Energy Flow for IoT Relay Systems with Crowd Harvesting

CPW Fed Triangular Shaped upper Strip Patch Monopole Antenna for RF Energy Harvesting

A survey on ambient energy sources and harvesting methods for structural health monitoring applications

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