One-to-Multiple RF Power Transmission System Based on High-Gain Phased Array with Beam Control

Authors

  • Xue Bai School of Electrical and Information Engineering Jiangsu University, Zhenjiang 212013, China
  • Yanjiao Hou School of Electrical and Information Engineering Jiangsu University, Zhenjiang 212013, China
  • Leijun Xu School of Electrical and Information Engineering Jiangsu University, Zhenjiang 212013, China
  • Jianfeng Chen School of Electrical and Information Engineering Jiangsu University, Zhenjiang 212013, China
  • Yiyang Kong School of Electrical and Information Engineering Jiangsu University, Zhenjiang 212013, China

DOI:

https://doi.org/10.13052/2024.ACES.J.391007

Keywords:

Antenna array, multi-target, phased array, quasi-Yagi antenna, single split ring resonator (SSRR), wireless power transmission (WPT)

Abstract

This paper proposes a one-to-multiple RF wireless power transmission (WPT) system that uses multi-mode phased array technology to control beamforming. The proposed system uses array partition mode and time division mode to achieve multi-target WPT. A novel quasi-Yagi antenna with enhanced gain is designed, consisting of a pair of dipoles, three directors, and a single split-ring resonator (SSRR), which is then used to form a 1×8 array for power transmission. The antenna has a bandwidth of 0.35 GHz with a frequency range of 2.25-2.6 GHz and a gain of 9.38 dBi. The total gain of the 1×8 array antenna is 17.23 dBi. An 8-way power divider is designed and implemented to feed the power amplifier (PA) of each array element, with isolation greater than 20 dB and return loss less than −17 dB. A digital phase and attenuation control circuit is also designed to achieve beam control. Measurement results show that at a distance of 3 meters, the maximum received power for single-target and multi-target schemes is 7.5 dBm and −2.6 dBm at each node, respectively. The system’s flexible beam control mode and high gain transmission characteristics can be used in scenarios such as wirelessly powering Internet of Things (IoT) multi-sensor networks.

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Author Biographies

Xue Bai, School of Electrical and Information Engineering Jiangsu University, Zhenjiang 212013, China

Xue Bai was born in 1975. She received her Ph.D. degree in the field of Agricultural Information Technology from Jiangsu University in 2011. She is now an Associate professor in School of Electrical and Information Engineering, Jiangsu university, China. Her current research area is agricultural IoT and self-power technology for sensors.

Yanjiao Hou, School of Electrical and Information Engineering Jiangsu University, Zhenjiang 212013, China

Yanjiao Hou comes from Hulunbuir, Inner Mongolia, majoring in electrical engineering and graduated from Jiangsu University. She is currently working in the hardware field.

Leijun Xu, School of Electrical and Information Engineering Jiangsu University, Zhenjiang 212013, China

Leijun Xu was born in 1976. He received his Ph.D. degree in the field of RF & millimeter-wave integrated circuit from Southeast University in 2010. He is now a professor in School of Electrical and Information Engineering, Jiangsu university, China. His current research area is RF & THz integrated circuit for agricultural application.

Jianfeng Chen, School of Electrical and Information Engineering Jiangsu University, Zhenjiang 212013, China

Jianfeng Chen was born in 1987. Obtained a doctoral degree in Electromagnetic Field and Microwave Technology from Southeast University in 2021. He is currently a lecturer at the School of Electrical and Information Engineering, Jiangsu University, China. His current research field is electromagnetic fields and electromagnetic waves.

Yiyang Kong, School of Electrical and Information Engineering Jiangsu University, Zhenjiang 212013, China

Yiyang Kong was born in 1998. He is currently a graduate student majoring in Agricultural Electrification and Automation at Jiangsu University. His research field is agricultural IoT and self-power technology for sensors.

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Published

2024-10-31

How to Cite

[1]
X. Bai, Y. . Hou, L. . Xu, J. . Chen, and Y. . Kong, “One-to-Multiple RF Power Transmission System Based on High-Gain Phased Array with Beam Control”, ACES Journal, vol. 39, no. 10, pp. 891–900, Oct. 2024.

Issue

2024: Vol 39 Iss 10

Section

AM for Next Gen Wireless

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