An optically controlled phased array antenna based on single sideband polarization modulation

作者:Zhang Yamei; Wu Huan; Zhu Dan; Pan Shilong*
来源:Optics Express, 2014, 22(4): 3761-3765.
DOI:10.1364/OE.22.003761

摘要

A novel optically controlled phased array antenna consisting a simple optical beamforming network and an N element linear patch antenna array is proposed and demonstrated. The optical beamforming network is realized by N independent phase shifters using a shared optical single sideband (OSSB) polarization modulator together with N polarization controllers (PCs), N polarization beam splitters (PBSs) and N photodetectors (PDs). An experiment is carried out. A 4-element linear patch antenna array operating at 14 GHz and a 1 x 4 optical beamforming network (OBFN) is employed to realize the phased array antenna. The radiation patterns of the phased array antenna at -30 degrees, 0 degrees and 30 degrees are achieved.