The Institute for Communications Engineering and RF-Systems hearthly congratulates Dr. Christoph Kohlberger for successfully defending his doctoral thesis. The topic of his dissertation is "Active and Passive RF-Metasurfaces from Simple Grid and Patch Structures". 

Members of the examination committee were: 

• Assoz. Univ.-Prof. Dipl.-Ing. Dr.techn. Markus Schöberl, JKU (Chairman)
• Univ.-Prof. DI Dr. Andreas Stelzer, JKU
• Prof. Sergei A. Tretyakov, Aalto University, Finland
• Assoc.-Prof. Dr. Michael Lunglmayr, JKU