An efficient beamformer for uniform rectangular arrays

This paper proposes an efficient beamformer based on the binary bat algorithm for uniform rectangular arrays of half-wavelength dipoles. The proposed beamformer utilizes the technique of controlling only the amplitude of excitation weights to produce optimal patterns with minimal distortions in sidelobe regions while maintaining the main beam and imposing nulls in the directions of interfering signals.
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An efficient beamformer for uniform rectangular arrays