Wideband and Load-Insensitive Metasurface Absorber for Radio Frequency Energy Harvesting

Henry Ojukwu, Boon Chong Seet, Saeed Ur Rehman

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

Abstract

This paper presents a new design of a metasurface absorber for radio frequency (RF) energy harvesting. The proposed absorber has a planar structure composing of 4×4 metamaterial unit cells with an absorption bandwidth spanning a frequency range between 6.7-8.25 GHz. The electrical size of each unit cell is 0.3λ x 0.3λ x 0.07λ at 6.7 GHz. The proposed metasurface absorber demonstrates promising ability to absorb the energy of the incident RF wave with near-unity efficiency under varying resistive loads between 100-500 Ω. Results from full-wave simulation show that the proposed absorber can achieve an absorptivity > 99% within the considered frequency range.

Original languageEnglish
Title of host publication2022 IEEE 33rd Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages963-967
Number of pages5
ISBN (Electronic)9781665480536
DOIs
Publication statusPublished - 20 Dec 2022
Event33rd IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2022 - Virtual, Online, Japan
Duration: 12 Sept 202215 Sept 2022

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2022-September

Conference

Conference33rd IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2022
Country/TerritoryJapan
CityVirtual, Online
Period12/09/2215/09/22

Keywords

  • load-insensitive
  • metamaterial unit cell
  • metasurface absorber
  • radio frequency energy harvesting
  • wideband

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