Karl B. Nlclas received the Dipl.—Ing. and Doctor of Engineering degrees from the Technical University of Aachen, Aachen, Germany, in 1956 and 1962, respectively. From 1956 to 1962 he was with the Microwave Tube Laboratory at the Telefunken G.m.b.H. Tube Division, &-Donau, Germany. He was engaged in research and development on ultraIow-noise and medium-power traveling-wave tubes. In 1958 he became Head of the commnv’s Travefing-Wave Tube Section and Assistant Manager of the Microwave Tube Laboratory. From 1962 to 1963 he was associated as a Senior Project Engineer with Generaf Electric Microwave Laboratory, Stanford, CA. His work was mainly concerned with theoretical and experimental investigations of single-reversal focused low-noise traveling-wave tube amplifiers, and resulted in the first lightweight amplifier of this tree. In 1963 he joined the Technicaf Staff of Watkins-Johnson Company, Palo Alto, CA, and is presently Consultant to the Vice President, Devices Group. His current research efforts are primarily foeused on advanced GaAs FET amplifiers, broad-band power combining techniques, and wide-band GaAs FET oscillator concepts. From 1967 to 1976 he was Manager of the company’s Tube Division. Before that, he was Head of the Low-Noise Tube R & D Section, and prior to that he was engaged in a research program on new concepts for achieving high efficiency in traveling-wave tubes. He is the author of numerous papers and holds a number of patents. Dr. Niclas received the outstanding publications award in 1962 of the German Society of Radio Engineers.