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Beamspace SMILE array for digital beamforming with a single RF receiver

A novel approach of beamspace SMILE array with a single RF receiver for digital beamforming is proposed in this paper. We use a set of orthogonal beams to transfer element space data to beamspace and then use a SMILE array with a single receiver for digital beamforming. The advantages of this method include the drastically reduction in the computational burden and RF hardware. Performance of an 8×4 5.8 GHz uniform cylindrical array was studied.