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Wide Input Range Single Feed RF Energy Harvester

  • Indian Institute of Technology Hyderabad

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

This paper presents a hybrid single-feed CMOS rectifier for RF energy harvesting at 2.4 GHz. The proposed system achieves high power conversion efficiency across a wide input power range by reconfiguring the power paths. The architecture incorporates 3-stage reconfigurable hybrid rectifiers and each stage as regular V th MOS rectifier for high input power and low V th MOS rectifier for low input power. Both the rectifiers are connected in a cross-coupled manner which results in small ON-resistance and low reverse leakage current during forward and reverse biased conditions, respectively. The system designed in UMC 0.18 Μm CMOS technology for Wi-Fi frequency (2.4 GHz). The post layout simulation results shows an efficiency > 30% for input power levels ranging from -24 dBm to -10 dBm while driving a load of 40 KΩ.

Original languageEnglish
Title of host publication2018 16th IEEE International New Circuits and Systems Conference, NEWCAS 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages144-147
Number of pages4
ISBN (Electronic)9781538615133
DOIs
StatePublished - Dec 21 2018
Event16th IEEE International New Circuits and Systems Conference, NEWCAS 2018 - Montreal, Canada
Duration: Jun 24 2018Jun 27 2018

Publication series

Name2018 16th IEEE International New Circuits and Systems Conference, NEWCAS 2018

Conference

Conference16th IEEE International New Circuits and Systems Conference, NEWCAS 2018
Country/TerritoryCanada
CityMontreal
Period06/24/1806/27/18

Keywords

  • CMOS rectifier
  • Power Conversion Efficiency (PCE)
  • RF energy harvesting

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