THOMAS KAISER received the Ph.D. degree in 1995 with distinction and the German habilitation degree in 2000, both from Gerhard-Mercator-University Duisburg and in electrical engineering (EE). In summer 2005 he joined Stanford's Smart Antenna Research Group (SARG) and in winter 2007 Princeton's EE department as a visiting professor. Now he holds a chair on communication systems at the Leibniz University of Hannover, Germany and is founder and CEO of the spin-off company mimoOn GmbH. Dr. Kaiser has published more than 100 papers and has co-edited four books on ultra-wideband and smart antenna systems. He is the founding Editor-in-Chief of the IEEE Signal Processing Society e-letter and Member-at-Large of the Board of Governors of the same society. His research interest focuses on applied signal processing with emphasis on multi-antenna systems, especially its applicability to ultra-wideband systems.