Low Power and Low Cost Millimeter-Wave Digital Beamformer Using An Orthogonal Coding Scheme

A novel four-channel receiver architecture is proposed using an orthogonal coding scheme for low-cost and low complexity millimeter-wave (mm- Wave) digital beamforming. In this proposed architecture, multiple signals are encoded with othogonal Walsh-Hadamard (WH) codes and multiplexed into a single channel. The combined signal is fed into a single Analog-to-Digital converter (ADC) at the digital b...