Beamforming Gain

•Beamforming Gain, i.e. Phase-comparison (or Amplitude-comparison) Array Gain is proportional to the Ideal Beamforming Gain which is related to the dimensions n, m or n x m (m for transmit beamforming gain, n for receive beamforming gain, n x m for total system beamforming gain), and conditionally related to the Correlation Coefficient r
-In some cases of LOS and so forth, the space distribution of incoming multipath waves is limited and fixed in path rather than wide-dispersive or of opportunity in time, so the individual antennas had better have in-phase waveforms to raise the combined gain
-In the same cases, the angle distribution of incoming multipath waves is limited and fixed in direction rather than isotropic or of opportunity in angle, so the individual antennas had better have identical patterns to raise the combined gain