Dr. Dimitrios G. Babas received the B.Sc. degree in Physics in 1991 and the MSc in Electronic Physics (Radioelectrology) in 1995, both from the Aristotle University of Thessaloniki, (AUTH), Greece. He completed his PhD thesis on telecommunication waveguide systems (microstrip structures) at the Department of Physics of AUTH in 2001. He also received the Diploma of Postgraduate Studies in Telecommunication and Information Systems in 1992 from the University of Essex, UK. Since 1992 he has been working as a research assistant at the Radio-Communications Laboratory (RCL), AUTh. During the period 1999-2008 he was a Scientific Associate in the Department of Electronics, Technological and Educational Institute of Thessaloniki, Greece. Since 2004 he has been a member of the teaching staff of the MSc in Electronic Physics (Radioelectronics), AUTh, and since 2014 he has been a member of the Laboratory Teaching Staff of the Department of Physics, AUTh. In 2011-13 he was a member of the Annual Board of Electromagnetic Compatibility Experts of the Ministry of Transport and Communications (Greece). His research interests include waveguide systems, antenna systems design, wireless communications, satellite communications and RF measurements. Dr. Babas is a member of IEEE.