首页|One-to-Multiple RF Power Transmission System Based on High-Gain Phased Array with Beam Control
One-to-Multiple RF Power Transmission System Based on High-Gain Phased Array with Beam Control
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
Applied Computational Electromagnetics Soc
This paper proposes a one-to-multiple RFwireless power transmission (WPT) system that usesmulti-mode phased array technology to control beamforming.The proposed system uses array partition modeand time division mode to achieve multi-target WPT.A novel quasi-Yagi antenna with enhanced gain isdesigned, consisting of a pair of dipoles, three directors,and a single split-ring resonator (SSRR), which isthen used to form a 1×8 array for power transmission.The antenna has a bandwidth of 0.35 GHz with a frequencyrange 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 implementedto 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 circuitis also designed to achieve beam control. Measurementresults show that at a distance of 3 meters, the maximumreceived power for single-target and multi-targetschemes is 7.5 dBm and −2.6 dBm at each node, respectively.The system’s flexible beam control mode and highgain transmission characteristics can be used in scenariossuch as wirelessly powering Internet of Things (IoT)multi-sensor networks.
Antenna arraymulti-targetphased arrayquasi-Yagi antennasingle split ring resonator (SSRR)wireless power transmission (WPT)
Xue Bai、Yanjiao Hou、Leijun Xu、Jianfeng Chen、Yiyang Kong
展开 >
School of Electrical and Information EngineeringJiangsu University, Zhenjiang 212013, China
NETL
NSTL
Applied Computational Electromagnetics Soc
