Beam Scanning 10 x 10 Phased Array Antenna Using Liquid Crystal Phase Shifters

this paper, we devise a phased array antenna with liquid crystal material, employing a 10 x 10 uniform rectangular array. The phase of the phased array antenna is controlled by loading bias voltage on the liquid crystal layer, and the FoM (figure-of-merit) of the phase shifter can attain 70.6 degrees/dB. The phased array antenna works at 16 GHz and employs a microstrip circular patch as the radiation unit. The proposed phased array can achieve a gain of 23.1 dBi, and its beam scanning range reaches +45 degrees in simulation experiment. The preliminary measurement results demonstrate that the performance of the proposed antenna is basically consistent with simulation results.