Two-Layer Planar Loop Array for Near Field Beam Forming with Improved Efficiency

This paper presents an efficient two-layer planar loop array resonator for selective magnetic resonance wireless power transfer (MR WPT). This two-layer structure provides two important functions with improved efficiency by adjusting the lumped capacitance of each loop: selective MR WPT, the ability...

Full description

Saved in:
Bibliographic Details
Published inIEEE Wireless Power Transfer Conference pp. 143 - 145
Main Authors Nam, Yong-Hyun, Lee, Jeong-Hae
Format Conference Proceeding
LanguageEnglish
Published IEEE 15.11.2020
Subjects
Conferences
magnetic resonance wireless power transfer(MR WPT)
selective WPT
spatial freedom
Wireless power transfer
Online AccessGet full text
ISSN2573-7651
DOI10.1109/WPTC48563.2020.9295623

Cover

More Information
Summary:This paper presents an efficient two-layer planar loop array resonator for selective magnetic resonance wireless power transfer (MR WPT). This two-layer structure provides two important functions with improved efficiency by adjusting the lumped capacitance of each loop: selective MR WPT, the ability of position- and alignment-free with the receiver. The optimal capacitance of each loop can be found using a genetic algorithm (GA). The two-layer array of 2×2 and 4×4 is designed at an operating frequency of 6.78MHz. This two-layer loop array has improved the measured power transfer efficiency (PTE) by 〜10 % at distance of 500mm, compared with that of the previous single-layer 4×4 loop array.
ISSN:2573-7651
DOI:10.1109/WPTC48563.2020.9295623