Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Smart Phone RF Wireless Charging with 5.8-GHz Microwave Wireless Power Receiver

5.8-GHz무선전력수신기를 이용한 스마트폰 RF 무선충전

  • Son, Myung Sik (Department of Electronic Engineering, Sunchon National University)
  • 손명식 (순천대학교 전자공학과)
  • Received : 2021.05.03
  • Accepted : 2021.06.18
  • Published : 2021.06.30
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Abstract

In this paper, we studied smart phone RF wireless charging with 5.8-GHz microwave wireless power receiver. The dc output of the receiver connected to super capacitor and DC-DC converter for charging a smart phone. This configuration stably supplies 5V and current for charging it. Studies show that the more receivers are used at close range, the higher the received voltage values and the larger the capacity of the super capacitor, the longer the charging time. The present 5.8-GHz 1W wireless power transmission system is not enough for charging a smartphone mainly due to the lack of current of the receiver.

Keywords

Acknowledgement

순천대학교 교연비 사업에 의하여 연구되었음.

References

  1. Biao Hu, Hao Li, Tianming Li, Haiyang Wang, Yihong Zhou, Xiaoyun Zhao, Xin Hu, Xuekun Du, Yulong Zhao, Xiang Li, Tian Qi, Mohamed Helaoui, Wenhua chen, Fadhel Ghannouchi, "A long-distance high-power microwave wireless power transmission system based on asymmetrical resonant magnetron and cyclotron-wave rectifier", Energy Reports 7, pp.1154-1161, 2021. https://doi.org/10.1016/j.egyr.2020.12.026
  2. Seong Hun Lee and Myung Sik Son, "5.8GHz 25W Microwave Wireless Power Transmission System Development and Measurement", Journal of the Semiconductor & Display Technology, Vol 16, No.1, pp. 21-24, 2019.
  3. Seong Hun Lee and Myung Sik Son, "RF-DC Voltage Multiplier Design and Fabrication for 5.8GHz Microwave Wireless Power Transmission", Journal of the Semiconductor & Display Technology, Vol 16, No.2, pp. 1-4, 2017.