An Optimal Digital Beamformer for mm-Wave Phased Arrays with 660MHz Instantaneous Bandwidth in 28nm CMOS.

Ever-increasing global demand for communication bandwidth is incentivizing broader use of the millimeter wave (mm-Wave) frequency band which operates with carrier frequencies exceeding 28GHz [1]. However, such communication poses significant challenges including increased path loss, limited antenna aperture and interference from other transmitters which severely degrades the Signal-to-Interference-plus-Noise Ratio (SINR) of the communication channel.