Ulf Johannsen obtained his Dipl.-Ing. degree from Hamburg University of Technology (TUHH), Germany, in 2009 and his PhD degree from Eindhoven University of Technology (TUE), the Netherlands, in 2013. In 2013, he started as a senior systems engineer at Atlas Elektronik in Bremen, Germany, where he worked as a system designer and engineering manager on autonomous underwater vehicle (AUV) systems with sonar payloads. Since 2016, he is an assistant professor with the Electromagnetics group at the TUE. His research focus lies on (sub-)millimeter-wave antenna systems and technologies for various applications. Moreover, he leads the Ultra-High Data Rate program within TUE’s Centre for Wireless Technology and he is the chairperson of the IEEE Benelux AP/MTT joint chapter.