Wirelessly Powered IoT Sensor Facilitated by A Planar Electrically Small Huygens Rectenna

Wei Lin, Richard W. Ziolkowski

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A wirelessly powered Internet-of-Things (IoT) sensor system is presented in this paper. It is facilitated by a highly compact, planar electrically small Huygens rectenna. The rectenna is based on two metamaterial-inspired electrically small structures, an Egyptian axe dipole (EAD) and a capacitively loaded loop (CLL). The near-field resonant parasitic EAD and CLL structures are carefully designed to be a compact entity that excites a short dipole. A highly efficient rectifier circuit is seamlessly connected to this driven dipole, forming a rectenna. The whole rectenna system is fabricated on a single piece of PCB substrate. It is electrically small, has an ultra-thin profile, and is low cost and lightweight. The developed rectenna is able to wirelessly power IoT devices to realize battery-free systems. A wirelessly powered light detection sensor system is successfully demonstrated by augmenting the rectifier with a photocell.

Original languageEnglish (US)
Title of host publication2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages17-18
Number of pages2
ISBN (Electronic)9781728166704
DOIs
StatePublished - Jul 5 2020
Externally publishedYes
Event2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Virtually, Toronto, Canada
Duration: Jul 5 2020Jul 10 2020

Publication series

Name2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020 - Proceedings

Conference

Conference2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting, IEEECONF 2020
Country/TerritoryCanada
CityVirtually, Toronto
Period7/5/207/10/20

Keywords

  • Electrically small antennas
  • Huygens antennas
  • Internet-of-Things
  • rectennas
  • sensors
  • wireless power transfer

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Instrumentation

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