Demonstration of sub-terahertz coplanar rectenna using 265 GHz gyrotron

被引：0
|
作者：
Mizojiri, Sei [1 ]
Takagi, Kengo [1 ]
Shimamura, Kohei [1 ]
Yokota, Shigeru [1 ]
Fukunari, Masafumi [2 ]
Tatematsu, Yoshinori [2 ]
Saito, Teruo [2 ]
机构：
[1] Univ Tsukuba, Dept Engn Mech & Energy, Tsukuba, Ibaraki, Japan
[2] Univ Fukui, Res Ctr Dev Far Infrared Reg, Fukui, Japan
来源：
2019 IEEE MTT-S WIRELESS POWER TRANSFER CONFERENCE (WPTC) / IEEE PELS WORKSHOP ON EMERGING TECHNOLOGIES: WIRELESS POWER (WOW) / WIRELESS POWER WEEK (WPW 2019) | 2019年
基金：
日本学术振兴会;
关键词：
Gyrotrons; Rectennas; Slot antennas; Rectifiers; Millimeter wave circuits; Wireless power transmission;
D O I：
10.1109/wptc45513.2019.9055555
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：
A 265 GHz rectenna was developed by microfabrication on Si wafer and then assessed using a 265 GHz gyrotron. Coplanar waveguide (CPW) has smaller transmission loss than Microstrip line (MSL) in the higher frequency band and high precision circuit patterns can be fabricated on the same plane by microfabrication. A coplanar slot antenna was designed and a gain of 6.14 dBiwas obtained by simulation. The input power was estimated by application of the beam profile measured using an IR camera and the beam output power. As a result, the maximum DC output power and rectenna power density (DC output power per unit area) were 0.5 mW, 0.09 kW/m(2) with 266 mV output voltage and 150 Omega DC load. The RF-DC conversion efficiency was obtained as 0.07 % with 644 mW input power. This work is the cutting edge of high-frequency operation in a microwave CPW type rectenna.
引用
收藏
页码：409 / 412
页数：4
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