1. Institute of Robust Power Semiconductor Systems (ILH), University of Stuttgart,Germany
2. Institute of Space Systems (IRS), University of Stuttgart,Germany
3. Thales Alenia Space Germany,Germany
4. Tesat-Spacecom GmbH & Co. KG,Germany
5. Radiometer Physics GmbH (RPG),Germany
6. Fraunhofer Institute for Applied Solid State Physics (IAF),Germany