Circular Flat-top Beam Pattern Synthesis of a Rotated Sparse Planar Dipole Array with Minimum Element Spacing Constraint

This paper achieves the circular flat-top beam pattern synthesis of a uniform amplitude sparse planar dipole array by joint optimization of element rotations, positions and phases. Moreover, the minimum element spacing constraint for the synthesized array is considered by using an asymmetry mapping method (AMM). Importantly, on the basis of obtaining an equivalent or better pattern performance, the synthesized array can save 33.06% elements and avoid the usage of unequal power dividers than published results.