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Analysis and Experiment on Multi-Antenna-to-Multi-Antenna RF Wireless Power Transferopen access
- Issue Date
- Jan-2021
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- RF wireless power transfer; microwave power transfer; beam efficiency; phased antenna array
- Citation
- IEEE ACCESS, v.9, pp.2018 - 2031
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE ACCESS
- Volume
- 9
- Start Page
- 2018
- End Page
- 2031
- ISSN
- 2169-3536
- Abstract
- In this paper, we provide a tool for predicting the power transfer efficiency of radio-frequency (RF) wireless power transfer (WPT). With its capability of long-range wireless power transfer, RF WPT is considered as a very promising recharging technique for powering low-power internet of things (IoT) devices. The prediction of the power transfer efficiency is a prerequisite for setting up a proper design goal of RF WPT systems. We propose an analytic method that enables to calculate the efficiency in various multi-antenna-to-multi-antenna WPT scenarios with arbitrary positions and attitudes of antenna arrays. We have built a prototype RF WPT system with 64 transmit and 16 receive antennas, the operating frequency of which is 5.8 GHz, and verified the accuracy of the proposed analysis.
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Related Researcher
- CHOI, KAE WON
- Information and Communication Engineering (Electronic and Electrical Engineering)