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Energy harvesting wireless sensor for achieving self-powered structural health monitoring system

Revathy Srinivasan (Department of Electronics and Communication, Sri Venkateswara College of Engineering, Sriperumbudur, India)
Umma Habiba Hyder Ali (Department of Electronics and Communication, Sri Venkateswara College of Engineering, Sriperumbudur, India)

Circuit World

ISSN: 0305-6120

Article publication date: 11 March 2020

Issue publication date: 7 October 2020

117

Abstract

Purpose

On average, a medium-sized satellite consist of almost 500 sensors where powering these sensors in space in such an unreachable environment is critical. Backing this, a compact energy harvester for powering up distant sensors is discussed here is the purpose of this paper. This is in line with the geostationary satellite-powered using the available electromagnetic energy on the satellite panels in space.

Design/methodology/approach

The designed rectenna makes use of a compact wideband receiving antenna operating at the targeted frequency band from 8 to 18 GHz. It also consists of a simple dual diode rectifier topology with a matching circuit, bandpass filter and a resistive load to convert the received radio frequency energy into usable direct current (DC) voltage.

Findings

The rectenna measurement is performed using three different configuration setups. This shows that a maximum DC voltage of 1.8 V and 5-10 mV is harvested from rectifier and rectenna (includes antenna and rectifier) when 20 dBm power is transmitted from the transmitting antenna operating at X and Ku band. This makes the rectenna feasible to power wireless sensors in a structural health monitoring system.

Originality/value

The measurements are performed by considering a real-time environment in space in terms of the distance between the transmitting and receiving antenna, which depends on the far-field of the transmitting antenna in a satellite.

Keywords

Citation

Srinivasan, R. and Hyder Ali, U.H. (2020), "Energy harvesting wireless sensor for achieving self-powered structural health monitoring system", Circuit World, Vol. 46 No. 4, pp. 307-315. https://doi.org/10.1108/CW-05-2019-0045

Publisher

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Emerald Publishing Limited

Copyright © 2020, Emerald Publishing Limited

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