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ViganĂ³, M.C. (author), Toso, G. (author), Caille, G. (author), Mangenot, C. (author), Lager, I.E. (author)A deterministic procedure to design a nonperiodic planar array radiating a rotationally symmetric pencil beam pattern with an adjustable sidelobe level is proposed. The elements positions are derived by modifying the peculiar locations of the sunflower seeds in such a way that the corresponding spatial density fits a Taylor amplitude tapering...journal article 2009