Santiago Cogollos was born in Valencia, Spain, on January 15, 1972. He received his degree in telecommunication engineering and Ph.D. degree from the Universidad Politécnica de Valencia (UPV), Valencia, Spain, in 1996 and 2002, respectively. In 2000 he joined the Communications Department of the Universidad Politécnica de Valencia where he was an Assistant Lecturer from 2000 to 2001, a Lecturer from 2001 to 2002, and an Associate Professor in 2002. He has collaborated with the European Space Research and Technology Centre of the European Space Agency (ESTEC-ESA) in the development of modal analysis tools for payload systems in satellites. In 2005, he held a post-doctoral research position working in the area of new synthesis techniques in filter design at the University of Waterloo, Waterloo, Ontario, Canada. His current research interests include applied electromagnetics, mathematical methods for electromagnetic theory, analytical and numerical methods for the analysis of waveguide structures, and design of waveguide components for space applications.