University of Stuttgart (UST)
The Institute of Robust Power Semiconductor Systems (ILH) was newly established in January 2013 at the University of Stuttgart, Germany, within the frame of the Robert Bosch Center for Power Electronics. Besides the new focus on power semiconductor electronics, Prof. Dr.-Ing. Ingmar Kallfass, director of the institute, has established an R&D group on millimeter-wave integrated circuit design and high speed wireless communication at the ILH. The group continues the R&D activities and projects from his previous affiliation at the Karlsruhe Institute of Technology, where from 2009 to 2012 he held the chair on High Speed Integrated Circuits for Next Generation Internet and Sensors in a shared professorship with the Fraunhofer Institute for Applied Solid State Physics in Freiburg, Germany.
The millimeter-wave group of ILH is currently a member and coordinator of R&D projects funded by the German Aerospace Centre (DLR), the German Federal Ministry of Economics and Technology (BMWi), the German Federal Ministry of Research and Education (BMBF) and the German Research Foundation (DFG). Multi-gigabit wireless link systems have been developed at 71-86 GHz, 200-280 GHz and 275-325 GHz and data rates of up to 100 Gbit/s have been demonstrated by the ILH. Its broadband analog receive and transmit frontend MMICs are based on high speed semiconductor technologies currently including GaAs HEMT, GaN HEMT and SiGe HBT.