A New RF Energy Harvesting System Based on Two Architectures to Enhance the DC Output Voltage for WSN Feeding

Benkalfate, Chemseddine; Ouslimani, A.; Kasbari, Abed-Elhak; Feham, Mohammed

doi:10.3390/s22093576

Cited by 10 publications

(2 citation statements)

References 59 publications

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“…The advanced feature of these reconfigurable antennas is the maximization of wireless communication through the integration of many radios onto a single platform. Due to their ability to operate over a broad frequency range, modify their geometries, and adapt to changes, reconfigurable antennas are therefore being viewed as a practical solution to cover the variety of wireless services [74][75][76][77]. There are several reconfiguration properties: frequency reconfigurability [78][79][80][81], polarization reconfigurability [82][83][84][85], pattern reconfigurability [86][87][88][89], hybrid reconfigurability [90][91][92][93], electrical diversity [94][95][96][97], optical diversity [98][99][100][101], mechanical diversity [102][103][104][105], material diversity [106][107][108][109], etc.…”

Section: Reconfigurable Antennas and Their Usage In Rf Energy Harvest...mentioning

confidence: 99%

Reconfigurable Antennas for RF Energy Harvesting Application: Current Trends, Challenges, and Solutions from Design Perspective

et al. 2023

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Due to the widespread use of low-power embedded devices in both industrial and consumer applications, research into the use of alternate energy sources has been sparked by the requirement for continuous power. Due to its accessibility and ability to be implanted, RF energy is always taken into consideration among the traditional energy sources that are currently available. There is a significant necessity for efficient RF front-ends, which must provide effective circular polarization (CP) features, effectiveness, feasibility from a design standpoint, and optimal usage of ambient RF signals accessible in the environment. So, for understanding their utilization in RF energy harvesting, a metasurface reflector-inspired CP-printed reconfigurable antenna integrated with a Greinacher voltage divider (GVD) rectifier circuit is reported. It offers broadband CP with fractional bandwidth > 25%, CP gain > 8.35 dBic, and directional radiation with the 3 dB angular beamwidth > 100° in the 3.5/5 GHz bands. With the integration of the rectifier circuit, a theoretical DC output > 4.8 V at 12 dBm is obtained. The acceptable impedance bandwidth, axial ratio bandwidth, antenna gain, antenna efficiency, and directional radiation with a 3 dB angular beamwidth value are studied and subsequently matched with the trade-offs (usage of diodes, complexity of DC biasing circuits, and attainment of polarization reconfigurability) obtained from the state of the art. A comprehensive study of the reconfigurable antennas is reported to highlight the findings as a widespread solution for these limitations in RF energy harvesting application.

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Section: Reconfigurable Antennas and Their Usage In Rf Energy Harvest...mentioning

confidence: 99%

Reconfigurable Antennas for RF Energy Harvesting Application: Current Trends, Challenges, and Solutions from Design Perspective

et al. 2023

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“…To match the rectifier to the antenna with a characteristic impedance of 50 Ω for the 2.45 GHz frequency, an impedance matching circuit formed by a superposition of two LC resonators in L structure is proposed as shown in Figure 38 [ 44 ].…”

Section: Design Of the Rf Energy Harvesting System Using The Proposed...mentioning

confidence: 99%

A New Compact Triple-Band Triangular Patch Antenna for RF Energy Harvesting Applications in IoT Devices

Benkalfate

Ouslimani

Kasbari

et al. 2022

Sensors

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This work proposes a new compact triple-band triangular patch antenna for RF energy harvesting applications in IoT devices. It is realized on Teflon glass substrate with a thickness of 0.67 mm and a relative permittivity of 2.1. Four versions of this antenna have been designed and realized with inclinations of 0°, 30°, 60° and 90° to study the impact of the tilting on their characteristics (S11 parameter, radiation pattern, gain) and to explore the possibilities of their implementation in the architectures of electronic equipment according to the available space. The antenna is also realized on waterproof paper with a thickness of 0.1 mm and a relative permittivity of 1.4 for biomedical domain. All the antennas (vertical antenna, tilted antennas and antenna realized on waterproof paper) have a size of 39 × 9 mm2 and cover the 2.45 GHz and 5.2 GHz Wi-Fi bands and the 8.2 GHz band. A good agreement is obtained between measured and simulated results. Radiation patterns show that all the antennas are omnidirectional for 2.45 GHz and pseudo-omnidirectional for 5.2 GHz and 8.2 GHz with maximum measured gains of 2.6 dBi, 4.55 dBi and 6 dBi, respectively. The maximum measured radiation efficiencies for the three antenna configurations are, respectively, of 75%, 70% and 72%. The Specific Absorption Rate (SAR) for the antenna bound on the human body is of 1.1 W/kg, 0.71 W/kg and 0.45 W/kg, respectively, for the three frequencies 2.45 GHz, 5.2 GHz and 8.2 GHz. All these antennas are then applied to realize RF energy harvesting systems. These systems are designed, realized and tested for the frequency 2.45 GHz, −20 dBm input power and 2 kΩ resistance load. The maximum measured output DC power is of 7.68 µW with a maximum RF-to-DC conversion efficiency of 77%.

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Maximizing energy efficiency in wireless sensor networks for data transmission: A Deep Learning-Based Grouping Model approach

Surenther,

Sridhar,

Kingston Roberts

2023

Alexandria Engineering Journal

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A New RF Energy Harvesting System Based on Two Architectures to Enhance the DC Output Voltage for WSN Feeding

Cited by 10 publications

References 59 publications

Reconfigurable Antennas for RF Energy Harvesting Application: Current Trends, Challenges, and Solutions from Design Perspective

Reconfigurable Antennas for RF Energy Harvesting Application: Current Trends, Challenges, and Solutions from Design Perspective

A New Compact Triple-Band Triangular Patch Antenna for RF Energy Harvesting Applications in IoT Devices

Maximizing energy efficiency in wireless sensor networks for data transmission: A Deep Learning-Based Grouping Model approach

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