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A method based on plant growth simulation algorithm (PGSA) is presented for pattern nulling by controlling only the element amplitudes of linear antenna array. The PGSA is a new and highly e-cient random search algorithm inspired by the growth process of plant phototropism. Simulation results for Chebyshev patterns with the imposed single, multiple and broad nulls are given to show the performance of the proposed method.

A PLANT GROWTH SIMULATION ALGORITHM FOR PATTERN NULLING OF LINEAR ANTENNA ARRAYS BY AMPLITUDE CONTROL