@conference {993, title = {On the Performance of Advanced Reflectarray Configurations for Multibeam Satellite Communications}, booktitle = {XXXV Simposio Nacional de la Uni{\'o}n Cient{\'\i}fica Internacional de Radio, URSI 2020}, year = {2020}, author = {Tom{\'a}s Ram{\'\i}rez and Daniel Mart{\'\i}nez de Rioja and Eduardo Mart{\'\i}nez de Rioja and Carlos Mosquera and Jos{\'e} A. Encinar} }