Design of a Millimeter-Wave Concentrator for Beam Reception in High-Power Wireless Power Transfer

被引:7
作者
Fukunari, Masafumi [1 ]
Wongsuryrat, Nat [2 ]
Yamaguchi, Toshikazu [3 ]
Nakamura, Yusuke [2 ]
Komurasaki, Kimiya [2 ]
Koizumi, Hiroyuki [2 ]
机构
[1] Univ Fukui, Res Ctr Dev Far Infrared Reg, Fukui 9108507, Japan
[2] Univ Tokyo, Kashiwa, Chiba 2778561, Japan
[3] Edogawa Univ, Chiba 2700132, Japan
关键词
Beamed energy propulsion; Millimeter-wave; Microwave optics; Microwave rocket; Concentrator; TRANSMISSION; PROPULSION; TECHNOLOGY; RECTENNA; PLASMA; ROCKET; GUIDE;
D O I
10.1007/s10762-016-0327-0
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This study examined the performance of a developed taper-tube concentrator for 94-GHz millimeter-wave beam reception during wireless power transfer. The received energy is converted into kinetic energy of a working gas in the tube to drive an engine or thruster. The concentrator, which is assumed to have mirror reflection of millimeter waves in it, is designed to be shorter than conventional tapered waveguides of millimeter waves. A dimensionless design law of a concentrator is proposed based on geometric optics theory. Because the applicability of geometric optics theory is unclear, the ratio of its bore diameter to its wavelength was set as small compared to those in other possible applications. Then, the discrepancy between the designed and measured power reception was examined. Results show that the maximum discrepancy was as low as 7 % for the bore-to-wavelength ratio of 20 at the narrow end of the concentrator.
引用
收藏
页码:176 / 190
页数:15
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