A Novel Solar and Electromagnetic Energy Harvesting System With a 3-D Printed Package for Energy Efficient Internet-of-Things Wireless Sensors

This paper discusses the design of a novel dual (solar + electromagnetic) energy harvesting powered communication system, which operates at 2.4 GHz ISM band, enabling the autonomous operation of a low power consumption power management circuit for a wireless sensor, while featuring a very good "...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2017-05, Vol.65 (5), p.1831-1842
Main Authors: Bito, Jo, Bahr, Ryan, Hester, Jimmy G., Nauroze, Syed Abdullah, Georgiadis, Apostolos, Tentzeris, Manos M.
Format: Article
Language:English
Subjects:
3-D printing
Additive manufacturing
Antenna design
autonomous RF system
Communications systems
Design
Energy harvesting
Frequency ranges
hybrid system
Internet of Things
Internet of Things (IoT)
Light irradiation
Photovoltaic cells
Ports (Computers)
Power management
Radio frequency
radio frequency (RF) circuits
rectennas
Sensor systems
Slot antennas
solar cell
Solar cells
Three-dimensional printing
wireless sensors
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Summary:This paper discusses the design of a novel dual (solar + electromagnetic) energy harvesting powered communication system, which operates at 2.4 GHz ISM band, enabling the autonomous operation of a low power consumption power management circuit for a wireless sensor, while featuring a very good "cold start" capability. The proposed harvester consists of a dual port rectangular slot antenna, a 3-D printed package, a solar cell, an RF-dc converter, a power management unit (PMU), a microcontroller unit, and an RF transceiver. Each designed component was characterized through simulation and measurements. As a result, the antenna exhibited a performance satisfying the design goals in the frequency range of 2.4-2.5 GHz. Similarly, the designed miniaturized RF-dc conversion circuit generated a sufficient voltage and power to support the autonomous operation of the bq25504 PMU for RF input power levels as low as -12.6 and -15.6 dBm at the "cold start" and "hot start" condition, respectively. The experimental testing of the PMU utilizing the proposed hybrid energy harvester confirmed the reduction of the capacitor charging time by 40% and the reduction of the minimum required RF input power level by 50% compared with the one required for the individual RF and solar harvester under the room light irradiation condition of 334 lx.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2017.2660487