Design of a reflective metasurface with a transmit lens using near-field beam focusing

被引：0
|
作者：
Lim, Tae Heung [1 ]
Seo, Chul Hun [2 ]
Choo, Hosung [1 ]
机构：
[1] Hongik Univ, Sch Elect & Elect Engn, Seoul, South Korea
[2] Soongsil Univ, Informat & Telecommun Engn, Seoul, South Korea
来源：
2020 IEEE WIRELESS POWER TRANSFER CONFERENCE (WPTC) | 2020年
基金：
新加坡国家研究基金会;
关键词：
reflective metasurface; transmit lens; near-field beam focusing;
D O I：
10.1109/wptc48563.2020.9295610
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this paper, a design of a reflective metasurface with a transmit lens is proposed to mechanically adjust a focal point of wireless power transmission using near-field beam focusing. The metasurface with 10 by 10 unit cells is modeled to provide an incident semi-planewave toward the transmission lens. The transmit lens can then focus the electric field at the focal point to increase the WPT efficiency, and the location of the lens can be mechanically adjusted to easily change the beam focusing point. The resulting electric field intensities are 26.4 dBV/m, 23.8 dBV/m, and 23.4 dBV/m at focusing points of 140 mm, 235.8 mm, and 342 mm, respectively, when the transmit lens is located at heights of 50 mm, 100 mm, and 150 mm along the bore-sight direction.
引用
收藏
页码：288 / 291
页数：4
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