Design of three layers-stacked metasurface and its application to compact dual-band WPT system

Xin Jiang, Fairus Tahar, Takashi Miyamotol, Adel Barakat, Kuniaki Yoshitomi, Ramesh K. Pokharel

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

Abstract

This paper proposes a three-layers stack metasurface first, and then employed it to a compact double-band wireless power transfer (WPT) system. For the proposed dual-band WPT system, the metasurface exhibits the wide-band characteristic of the negative-near-zero permeability from 222 MHz to 889 MHz, where the transmission efficiency improves significantly at longer WPT distance at the lower band. Only a unit cell is stacked in three layers so that the size of the proposed metasurface has significantly reduced compared to a conventional metasurface where several unit cells are arranged in 1-D topology. The size of the proposed WPT system and the metasurface is 15 x15 mm and 20 x20 mm, respectively. Also, capacitors with the value of 0.1pF are etched on the gaps of the metasurface. The measured efficiencies' improvement ratios are 1.13 at 390 MHz in the air, where the WPT distance is significantly improved from 19 mm to 23 mm.

Original languageEnglish
Title of host publication2021 IEEE Wireless Power Transfer Conference, WPTC 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728196336
DOIs
Publication statusPublished - Jun 1 2021
Event2021 IEEE Wireless Power Transfer Conference, WPTC 2021 - Virtual, San Diego, United States
Duration: Jun 1 2021Jun 4 2021

Publication series

Name2021 IEEE Wireless Power Transfer Conference, WPTC 2021

Conference

Conference2021 IEEE Wireless Power Transfer Conference, WPTC 2021
Country/TerritoryUnited States
CityVirtual, San Diego
Period6/1/216/4/21

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

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