Design of an eleven-way power divider for cosecant-squared beamforming

According to the requirements of the cosecant-squared-shaped beam of a secondary surveillance radar antenna, a genetic algorithm is used to optimize the amplitude and phase of the antenna elements. Based on the optimization results, this paper proposes an unequal eleven-way microstrip power divider. Connect the power divider to the antenna for verification, and the resulting beam matches the specified cosecant-squared-shaped beam.