Experimental Study of Effectiveness of Metasurface for Efficiency and Misalignment Enhancement of Near-Field WPT System

Unlikely for a far-field wireless power transfer (WPT) system, designing a metasurface is critical for a near-field WPT system. First, a robust near-field WPT system using open-loop spiral resonators and a metasurface are designed, and then, the effectiveness of the metasurface is investigated in im...

Full description

Saved in:
Bibliographic Details
Published inIEEE antennas and wireless propagation letters Vol. 21; no. 10; pp. 2010 - 2014
Main Authors Aboualalaa, Mohamed, Mansour, Islam, Pokharel, Ramesh K.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.10.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Capacitors
Couplings
Effectiveness
Far fields
Magnetic fields
Metamaterial (MM)
Metasurfaces
Misalignment
Near fields
near-field wireless power transfer (WPT)
open-loop spiral resonator (OLSR)
Periodic structures
Permeability
power transfer efficiency (PTE)
Resonators
Wireless power transmission
Online AccessGet full text

Cover

More Information
Summary:Unlikely for a far-field wireless power transfer (WPT) system, designing a metasurface is critical for a near-field WPT system. First, a robust near-field WPT system using open-loop spiral resonators and a metasurface are designed, and then, the effectiveness of the metasurface is investigated in improving the power transfer efficiency (PTE) and misalignment effects. Furthermore, a study of planar and angular misalignments is also executed experimentally to prove the WPT system immunity. The proposed WPT system offers a PTE of 30% when the Rx shifts by the lateral length of the Rx that means the Rx does not remain in front of the Tx. Moreover, the efficiency is almost unchanged due to the angular misalignment.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2022.3188297