Digital beamforming of smart antenna in millimeterwave communication

In this paper, a digital beamforming technique is studied which its transmitter model is designed for a 16-element linear phased array to a 256-element (16×16) rectangular phased array. First, its directivity is calculated. Base on the result, beam pattern characteristics are analyzed. Furthermore, the interference potential is compared by means the beamforming demo of millimeter waves against the microwave band used now. The simulation results demonstrate that the beam squint effect is relatively better at a higher frequency of millimeter wave band; the addition of directivity is in line to the increasing of the amount of the antenna array elements. Although, the potential of destructive interference is increasingly in the millimeters wave bands.