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RF Energy Harvesting For Self Powered Sensor Platform

Radhika, N and Tandon, Preetika and Prabhakar, TV and Vinoy, KJ (2018) RF Energy Harvesting For Self Powered Sensor Platform. In: 16th IEEE International New Circuits and Systems Conference (NEWCAS), JUN 24-27, 2018, Montreal, CANADA, pp. 148-151.

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Official URL: https://doi.org/10.1109/NEWCAS.2018.8585659

Abstract

This work demonstrates a RE powered sensor platform where energy can be available either in ambient FM band or emitted from a dedicated RF source. We realized the requirement with a dedicated chip built for RF power harvesting and conditioning A switched capacitor based ultra low power DC-DC boost converter is designed in 130nm CMOS technology as energy harvesting circuitry for ambient RF. The on-chip RE-DC resulted in a maximum efficiency of 44% with 9.75k Omega resistive load. At input sensitivities of -16dBm over 8 dominant frequencies, the sensor platform with strain gauge as sensor advertised a BEE packet every 20 minutes. For dedicated emitted radiations, the designed hybrid system is powered using sub-1 GHz frequencies. The resulting system has an end-to-end system efficiency of 9.1% and packet transmission interval of 90 seconds.

Item Type: Conference Proceedings
Additional Information: 16th IEEE International New Circuits and Systems Conference (NEWCAS), Montreal, CANADA, JUN 24-27, 2018
Keywords: RF Energy Harvesting; Ambient FM; RFID; Structural health monitoring
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Depositing User: Id for Latest eprints
Date Deposited: 15 Mar 2019 05:20
Last Modified: 15 Mar 2019 05:21
URI: http://eprints.iisc.ac.in/id/eprint/61960

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