A Novel Dual-band Ambient RF Energy Harvesting System for Autonomous Wireless Sensor Node Application

This paper presents a novel dual-band ambient Wi-Fi energy harvesting system for an autonomous wireless sensor node (AWSN) which operates independently without other external power source. While conventional wireless sensor nodes employing batteries with limited lifespans, an AWSN is supplied by har...

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Bibliographic Details
Published in:Applied Computational Electromagnetics Society journal 2021-11, Vol.36 (10), p.1367
Main Authors: Le, Minh Thuy, Pham, Duc Anh, Vu, Hong Tien, Ngo, Van Duc, Nguyen, Quoc Cuong
Format: Article
Language:English
Subjects:
Energy
Energy harvesting
Power sources
Wire
Online Access:Get full text
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Summary:This paper presents a novel dual-band ambient Wi-Fi energy harvesting system for an autonomous wireless sensor node (AWSN) which operates independently without other external power source. While conventional wireless sensor nodes employing batteries with limited lifespans, an AWSN is supplied by harvested energy and does not require frequent battery replacement. Due to that reason, research on the energy harvesting aspect of AWSNs has been carried out intensively in recent years. By optimizing the matching network, the proposed ambient Wi-Fi energy harvesting system achieves a relatively good efficiency in dual-band at 2.45 GHz and 5.8 GHz. The efficiency reaches a peak at 47.45 % and 42 % at 2.45 GHz and 5.8 GHz, respectively. The proposed idea is numerically and experimentally demonstrated with the Wi-Fi source in building.
ISSN:1054-4887
1943-5711
DOI:10.13052/2021.ACES.J.361013