Ultra Low Power RF Energy Harvesting System using a Super Capacitor as an Energy Reservoir for an IoT Node

Florian Grante, Ghalid Abib, Muriel Muller, Nel Samama

2022

Abstract

In this paper, we propose a 2.45 GHz RF energy harvesting system to power a battery free Internet of Things (IoT) sensor node. The system operates from an RF signal with a power as low as -20 dBm and includes an RF to DC converter, a storage super capacitor and a voltage DC/DC up-conversion. The system components are sized to provide the required electric energy to operate the connected object. The tested connected object includes an ARM microcontroller, an ultra low-power sensor (temperature, pressure and humidity) and a Bluetooth Low Energy interface for a wireless transmission toward a terminal such as a smartphone or tablet. It requires 200 μJ per transmission cycle, which must be provided by the proposed harvesting system. This system is tested in an anechoic chamber and using a constant power RF signal to characterize the energy recovery time needed for measuring and transmitting the sensor data. Promising results show that the system is capable of sending data after 5 hours of RF energy harvesting from a source distant with one meter.

Paper Citation

in Harvard Style

Grante F., Abib G., Muller M. and Samama N. (2022). Ultra Low Power RF Energy Harvesting System using a Super Capacitor as an Energy Reservoir for an IoT Node. In Proceedings of the 19th International Conference on Wireless Networks and Mobile Systems - Volume 1: WINSYS, ISBN 978-989-758-592-0, pages 15-21. DOI: 10.5220/0011143400003286

in Bibtex Style

@conference{winsys22,
author={Florian Grante and Ghalid Abib and Muriel Muller and Nel Samama},
title={Ultra Low Power RF Energy Harvesting System using a Super Capacitor as an Energy Reservoir for an IoT Node},
booktitle={Proceedings of the 19th International Conference on Wireless Networks and Mobile Systems - Volume 1: WINSYS,},
year={2022},
pages={15-21},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011143400003286},
isbn={978-989-758-592-0},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 19th International Conference on Wireless Networks and Mobile Systems - Volume 1: WINSYS,
TI - Ultra Low Power RF Energy Harvesting System using a Super Capacitor as an Energy Reservoir for an IoT Node
SN - 978-989-758-592-0
AU - Grante F.
AU - Abib G.
AU - Muller M.
AU - Samama N.
PY - 2022
SP - 15
EP - 21
DO - 10.5220/0011143400003286