Reducing Subcarriers Beam-Squinting of Ultra-Wideband Mobile Communication Systems using Phased Array Antennas

There has been increasing demand for accessible radio spectrum with the rapid development of mobile wireless devices and applications. For example, a GHz is needed fifth-generation (5G) cellular communication, but avail- able below 6 cannot meet such requirements. Fortunately, at higher frequencies, in particular, millimeter-wave bands, can be utilized through phased-array analog beamforming to provide access large amounts spectrum. However, gain provided by phased array frequency dependent wideband system, an effect called beam squint. We examine nature squint develop convenient models uniform linear array. To further simplify evaluation system performance, approximated closed-form expression derived. Furthermore, evaluate performance proposed design, rigorous numerical results concerning different parameters are this paper.