Wang Jian, Hou Peipei, Cai Haiwen, Sun Jianfeng, Wang Shunan, Wang Lijuan, Yang Fei
Opt Express. 2015 Apr 6;23(7):9432-9. doi: 10.1364/OE.23.009432.
We propose an optically controlled phased array antenna (PAA) based on differential true time delay constructed optical beamforming network (OBFN). Differential true time delay is realized by stack integrated micro-optical components. Optically-controlled angle steering of radio frequency (RF) beams are realized and demonstrated by this configuration. Experimental results demonstrate that OBFN based PAA can accomplish RF-independent broadband beam steering without beam squint effect and can achieve continuous angle steering. In addition, multi-beams for different steering angles are acquired synchronously.
我们提出了一种基于差分真时延构建的光学波束形成网络（OBFN）的光控相控阵天线（PAA）。差分真时延通过堆叠集成微光学元件来实现。通过这种配置实现并演示了射频（RF）波束的光控角度转向。实验结果表明，基于OBFN的PAA能够实现与射频无关的宽带波束转向，且无波束倾斜效应，并能实现连续角度转向。此外，还能同步获取不同转向角度的多波束。
