Efficient Far-Field Microwave WPT Using GRIN Lens Metamaterial at 2.45 GHz

被引：0
|
作者：
Kulkarni, Shashank S. [1 ]
Nayak, Sisir Kumar [1 ,2 ]
机构：
[1] Indian Inst Technol Guwahati, Sch Energy Sci & Engn, Gauhati 781039, Assam, India
[2] Indian Inst Technol Guwahati, Dept Elect & Elect Engn, Gauhati 781039, Assam, India
来源：
2024 IEEE SPACE, AEROSPACE AND DEFENCE CONFERENCE, SPACE 2024 | 2024年
关键词：
Microwave wireless power transfer; gradient refractive index; metamaterial; WPT efficiency; REFRACTIVE-INDEX METAMATERIAL; POWER TRANSFER; TRANSMISSION;
D O I：
10.1109/SPACE63117.2024.10668109
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
A gradient refractive index lens metamaterial for enhancement in 2.45 GHz far-field microwave wireless power transfer system efficiency is proposed. The MM unit cell exhibits a magnetic dipole and positive refractive index of 13.73 with minimal imaginary part. The GRIN lens has a parabolic distribution and improves gain by 1.93 dBi when positioned at 153 mm from the transmitter antenna. An experimental investigation of the strategy is validated by comparing the experimental data with the Friis transmission equation for a receiver distance of 1 m. The system efficiency is enhanced to 34.6%, making the GRIN MM suitable for WPT applications.
引用
收藏
页码：309 / 312
页数：4
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