摘要
研究了一种基于分布式天线阵列波束聚焦的微波无线能量传输系统。该系统的能量发射端由两个四单元天线阵列组成,两个天线阵列相隔一定的距离,呈分布式摆放。天线阵列各单元接收到移动目标设备发来的导航信号后,根据回复式反射原理协同产生聚焦于目标设备的功率波束。仿真结果表明,所设计的分布式回复反射波束聚焦系统能在一定范围内跟踪移动设备,并将无线能量准确地传送至移动设备所在位置。
beamforming. This paper presents a design of wireless power transmission The power transmitter consists of two 1 × 4 antenna arrays, well based on distributed retro-reflective separated in space. All the 8 antenna elements receive pilot signals broadcasted from a mobile target device, and then jointly focus the wireless power on the mobile device using the retro-reflective scheme. Simulation results show that the scheme of distributed retro-re- flective beamforming can track the mobile device＇s location within a certain region and accurately deliver wireless pow- er onto the device＇s location.
出处
《电子科技》
2015年第8期1-3,7,共4页
Electronic Science and Technology
基金
国家自然科学基金资助项目(61102032
61471195)
中国博士后科学基金资助项目(2012T50496)
关键词
无线能量传输
回复式反射
分布式波束形成
导航信号
wireless power transmission
retro-reflective
distributed beamforming
pilot signal
