Power-normalized beamforming gain scales linearly with the number of radiating elements, accompanied by a compact analytic expression for the normalized beam-depth that marks the transition to far-field-like behavior.
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Near-Field Beam Focusing Characterization for 2D Waveguide-Fed Metasurface Antennas
Power-normalized beamforming gain scales linearly with the number of radiating elements, accompanied by a compact analytic expression for the normalized beam-depth that marks the transition to far-field-like behavior.