Wideband mmWave Wireless Power Transfer: Theory, Design and Experiments

被引：6
|
作者：
Song, Chaoyun [1 ]
Wang, Lei [1 ]
Chen, Zhensheng [2 ]
Goussetisl, George [1 ]
Vandenbosch, Guy A. E. [2 ]
Huang, Yi [3 ]
机构：
[1] Heriot Watt Univ, Sch Engn & Phys Sci, Edinburgh, Midlothian, Scotland
[2] Katholieke Univ Leuven, Div ESAT WaveCore, Dep Elect Engn, Leuven, Belgium
[3] Univ Liverpool, Dept Elect Engn & Elect, Liverpool, Merseyside, England
来源：
2023 17TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION, EUCAP | 2023年
关键词：
mmWave; leaky wave antennas; rectennas; wireless power transfer;
D O I：
10.23919/EuCAP57121.2023.10132969
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：
A new type of wireless power transfer system is presented with wideband mmWave transmitters and rectennas. The proposed system transmits a beam formable and beam steerable signal by exploiting the inherent frequency-dispersive nature of a passive leaky wave antenna, thereby eliminating the need for active phased array and other costly control methods. Multiple nodes can be wirelessly powered simultaneously by using a wideband mmWave rectenna to harvest the frequency scanning signals. A 24-34 GHz rectenna was designed in a highly integrated fashion and has been tested to show its high conversion efficiency of >50% at the frequency and power levels of interest. We have presented a system demonstration for remotely charging diverse nodes at > 1 m distance by using the proposed system with feedback control for the multi-tone frequency modulation and sweeping of the transmitting signals. Our work has showcased the passive beamforming and multinode tracking of mmWave WPT system using significantly reduced cost and complexity.
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收藏
页数：5
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