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The design of radio frequency energy harvesting and radio frequency‐based wireless power transfer system for battery‐less self‐sustaining applications
Author(s) -
Zhang Jiawei,
Bai Xue,
Han Wanyang,
Zhao Buhui,
Xu Leijun,
Wei Jiaju
Publication year - 2019
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.21658
Subject(s) - radio frequency , rectenna , energy harvesting , wireless power transfer , rectifier (neural networks) , electrical engineering , maximum power transfer theorem , antenna (radio) , miniaturization , electronic engineering , wireless , rf power amplifier , power (physics) , battery (electricity) , computer science , engineering , telecommunications , physics , amplifier , cmos , quantum mechanics , stochastic neural network , machine learning , recurrent neural network , artificial neural network
Abstract In this paper, the RF energy harvesting system and RF‐based wireless power transfer system are proposed and designed for battery‐less self‐sustaining application. For energy harvesting, the designed antenna array improves the received RF power effectively and also can harvest RF energy in multi‐frequency bands. For wireless power transfer, the proposed helical antenna realizes the system design in miniaturization. Subsequently, the T shape LC matching network are designed between the antenna and the rectifying circuit to obtain more power transmission. The measured results show that the proposed Wi‐Fi rectifier and 433 MHz rectifier offer a maximum conversion efficiency of 66.8% and 76% in case of the input power is −3 dBm and 0 dBm, respectively. Finally, the performance of the RF‐based wireless power transfer system and RF energy harvesting system are attested by experimentally measurement, the measured results indicate that these systems can be used to power electronic.