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Multi-beam multi-channel secure communication using a mmWave analog phased array beamformer

This paper presents a multi-beam, multi-channel data communication scheme using a mmWave analog phased ar-ray beamformer. A multi-beam weight computation procedure is provided to generate simultaneous multiple beams with variable peak power levels towards any arbitrary azimuth and elevation angles. These multiple beams enable multi-channel data for different users using user-specific frequency and code sharing principles. At the receiver, the respective data are demodulated based on the frequency band or the code used. The unique codes support secure communication over the channel, and the unequal beam pattern ensures uniform signal levels for all the receivers.