@techreport{elediasc12788,
           title = {Exploiting Non?Radiating Currents to Design Reflectarrays with Arbitrary Geometrical Constraints},
            type = {Technical Report},
       publisher = {ELEDIA Research Center - University of Trento},
            year = {2019},
          author = {Marco SALUCCI and Angelo GELMINI and Giacomo OLIVERI and Nicola ANSELMI and Andrea MASSA},
        keywords = {Geometry-constrained design, inverse source (IS) problems, nonradiating (NR) currents, reflectarray current synthesis.},
             url = {http://www.eledia.org/students-reports/788/},
        abstract = {This  work  presents  an  innovative  methodology  for synthesizing  the  reflectarray surface  current  that  is able  to  meet  (at  the  same  time)  radiation  and user?defined geometrical  constraints.  Towards  this  end,  by suitably  formulating  the  reflectarray design  as  an inverse  source  (IS)  problem,  the  non?radiating current  components flowing  on  the  reflective  surface  are profitably  determined  in  order  to  cancel  the overall current in correspondence to selected sub?regions (i.e., "forbidden?regions") of  the  antenna  surface  without modifying  the  desired  radiation  features. Representative  numerical  results  are  shown  to validate the  effectiveness  of  the developed synthesis method.}
}