Retro-reflective Beamforming Technique with Applications in Wireless Power Transmission

WANG Xin; LU Mingyu

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Retro-reflective Beamforming Technique with Applications in Wireless Power Transmission

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Retro reflective beamforming technique has the potential of enabling efficient wireless power transmission over long distance(on the order of meters and even kilometers).In retro reflective beamforming,wireless power transmission is guided by pilot signal:Based upon pilot signal broadcasted by a wireless power receiver,a wireless power transmitter delivers focused microwave power beam(s)onto the location of wireless power receiver.When the wireless power receiver’s location is not fixed or when the wireless power receiver’s location is unknown to the wireless power transmitter,the microwave power beam would follow the wireless power receiver’s location dynamically as long as the wireless power receiver broadcasts pilot signal periodically.This paper reviews our research endeavors in recent years on retro reflective beamforming technique targeting three applications:(1)wireless charging for low power mobile/portable electronic devices,(2)space solar power satellites(SSPS)application,and(3)wireless charging in fully enclosed space.The feasibility and potential of retro reflective beamforming technique with applications in wireless power transmission are demonstrated by some preliminary experimental results.

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《南京航空航天大学学报：英文版》 |2019年第4期|545-565|共21页
作者
WANG Xin; LU Mingyu;
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作者单位

College of Electronic and Information Engineering;

Nanjing University of Aeronautics and Astronautics;

Nanjing 211106;

P.R.China;

Department of Electrical and Computer Engineering;

West Virginia University Institute of Technology;

West Virginia 25801;

USA;

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原文格式 PDF
正文语种 chi
中图分类无线电电子学的应用;
关键词
wireless power transmission; retro⁃reflective beamforming; microwave; antenna array; pilot signal;

Retro-reflective Beamforming Technique with Applications in Wireless Power Transmission

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