High-Performance Multiband Ambient RF Energy Harvesting Front-End System for Sustainable IoT Applications - A Review

The increasing demand for wireless Internet of Things (IoT) calls for power efficient RF energy harvesting approach. The current dominant single-band RF energy harvesting front-end system restricts itself to a single frequency, which is at the risk of ineffective operation when the harvesting freque...

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Bibliographic Details
Published in:IEEE access 2023-01, Vol.11, p.1-1
Main Authors: Lee, Yi Chen, Ramiah, Harikrishnan, Choo, Alexander, Churchill, Kishore Kumar Pakkirisami, Lai, Nai Shyan, Lim, Chee Cheow, Chen, Yong, Mak, Pui-In, Martins, Rui P.
Format: Article
Language:English
Subjects:
Circuits
CMOS
Density measurement
Energy
Energy harvesting
Impedance matching
Internet of Things
multiband RF energy harvesting
Optimization
power conversion efficiency (PCE)
Power system measurements
Radio frequency
Receiving antennas
Rectifiers
RF power transmission
State-of-the-art reviews
Wireless communication
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Summary:The increasing demand for wireless Internet of Things (IoT) calls for power efficient RF energy harvesting approach. The current dominant single-band RF energy harvesting front-end system restricts itself to a single frequency, which is at the risk of ineffective operation when the harvesting frequency is unavailable. This paper reviews and explores the alternative approach of a multiband RF energy-harvesting front-end system. It covers all essential circuitry of a multiband RF energy harvesting front-end system, starting from the recent RF surveys which investigate the typical, usable, and high-strength RF input, to the overview of the state-of-the-art antenna, impedance matching network (IMN), and RF-DC rectifier. The recent advancement of the multiple RF input harvesting abilities, reflection loss minimization, and performance improvement are comprehensively reviewed for different operating conditions, and this review also presents the advantages and disadvantages of the different circuit architecture combinations for multiband RF energy harvesting front-end systems. In summary, this review aims to fill the research gap in the further advancement of multiband RF energy harvesting towards enhancing its performance through optimal circuit integration of the front-end system.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2023.3241458