Geometry-based beamforming delivers 18.75 dB power gain in LoS (0.82 dB below CSI-based) but drops to a 3.83 dB gap in obstructed scenarios with a 41-antenna 920 MHz array.
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Experimental Evaluation of Geometry and Reciprocity-Based Beamforming with Large Arrays for RF Wireless Power Transfer
Geometry-based beamforming delivers 18.75 dB power gain in LoS (0.82 dB below CSI-based) but drops to a 3.83 dB gap in obstructed scenarios with a 41-antenna 920 MHz array.