Multibeam Wideband Transmit Beamforming Using 2D Sparse FIR Trapezoidal Filters
Nadeeshan Dissanayake,
Chamira U. S. Edussooriya,
Chamith Wijenayake
et al.
Abstract:A low-complexity multibeam wideband transmit beamformer using a 2D sparse FIR filter design capable of multiple beams is proposed as a digital building block for fully digital beamformers. The 2D sparse FIR filter has multiple trapezoid-shaped passbands pertaining to wideband beams aimed at particular directions. The proposed multibeam digital beamformer drives a uniform linear array of wideband antenna elements to achieve the wideband multibeam transmit-mode signals desired by the communication system. The 2D… Show more
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