Stefano MACI joined University of Siena (UNISI) in 1997 as an Associate Professor and since 2004 as a Professor and responsible of the AELab of UNISI. His research interest includes high-frequency and beam representation methods, computational electromagnetics, large phased arrays, planar antennas, reflector antennas and feeds, metamaterials and metasurfaces. In 2004-2007 he was WP leader of the Antenna Center of Excellence (ACE, FP6-EU) and in 2007-2010 he was International Coordinator of a 24-institution consortium of a Marie Curie Action (FP6). Since 2010 he has been Principal Investigator of 6 cooperative projects funded by European Space Agency. In 2004 he was the founder of the European School of Antennas (ESoA), a post graduate school that presently comprises 30 courses on Antennas, Propagation, Electromagnetic Theory, and Computational Electromagnetics and 150 teachers coming from 15 countries. Stefano Maci has been a former member of the AdCom of IEEE Antennas and Propagation Society (AP-S), associate editor of AP-Transaction, Chair of the Award Committee of IEEE AP-S, and member of the Board of Directors of the European Association on Antennas and Propagation (EurAAP). He has been Director of the PhD program in Information Engineering and Mathematics of University of Siena from 2008 to 2015, and also member of the National Italian Committee for Qualification to Professor from 2013 to 2015. He is the director of the consortium FORESEEN, presently involving 48 European Institutions, and principal investigator of the Future Emerging Technology project “Nanoarchitectronics” of the 8th EU Framework program. He was co-founder with his PhD students of 3 spin-off companies. He is a Distinguished Lecturer of the IEEE Antennas and Propagation Society (AP-S) (since 2013) and first distinguish lecturer of the EurAAP Ambassador Program (2018). He was recipient of the EurAAP Award in 2014, of the IEEE Shelkunoff Transaction Prize 2015, of the IEEE Chen-To Tai Distinguished Educator award 2016 and of the URSI J. H. Dellinger Gold Medal in 2020. His research activity is documented in 160 papers published in international journals, (among which 100 on IEEE transaction and letter journals), 11 book chapters, and about 400 papers in proceedings of international. His Google Scholar h-index is 42 (7000 cit), Scopus h-index: 35 (5000 cit).