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所属单位：电子信息工程学院

发表刊物：2017 IEEE WIRELESS POWER TRANSFER CONFERENCE (WPTC 2017)

关键字：antenna array beamforming retro-directive retro-reflective wireless power transmission

摘要：This paper studies the difference between retro-directive beamforming technique and retro-reflective beamforming technique in the context of wireless power transmission applications. In all of our studies, a wireless power receiver broadcasts continuous-wave pilot signal, the wireless power transmitter receives and analyzes the pilot signal, and finally the wireless power transmitter transmits continuous-wave power with phase profile conjugate to that of the received pilot signal. Our study demonstrates that, a linear equi-spaced array configuration employed by the wireless power transmitter behaves as a retro-directive beamformer when the wireless power receiver resides in the far-zone of the wireless power transmitter, whereas it behaves as a retro-reflective beamformer when the wireless power receiver is not in the far-zone. Our studies further show that, far-zone gain could be reduced by adjusting the array's geometrical configuration without affecting focusing in the near-zone. All the conclusions drawn in this paper are supported by numerical results as well as experimental results.

ISSN号：2474-0225

是否译文：否

发表时间：2017-01-01

合写作者：Ruan, Bodong,Wong, Hang,Chan, Chi Hou,Lu, Mingyu

通讯作者：王薪