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Victor Granatstein

Granatstein, Victor L.

Professor Emeritus of Electrical and Computer Engineering
1201E Energy Research Facility

Research Interests: 

Professor Granatstein's research interests are in the area of relativistic microwave electronics, especially gyrotrons and free electron masers with application to plasma heating in magnetic fusion energy (MFE) research, advanced particle accelerators for high energy physics (HEP) research, microwave processing of materials, and millimeter-wave radar systems.  He is also interested in studying microwave effects on electronics.

His current research interests are focused on developing gyrotron amplifiers and oscillators which operate efficiently at harmonics of the electron cyclotron frequency and are of particular interest in the HEP and radar applications. The approach being investigated is harmonic multiplication at each successive stage of a multi-stage gyrotron circuit; harmonic multiplication reduces the magnetic field in the gyrotron and thus avoids the requirement of using superconducting magnets.  Employing depressed collectors to enhance gyrotron efficiency is also being investigated. In free electron maser research directed at the MFE application, the possibility of using micro-wigglers in high average power configurations is being investigated with the aim of reducing voltage requirements.  Studies of plasma-filled backward-wave oscillators are also being pursued on a path to developing more compact high-power-microwave (HPM) generators.  Finally, the effect of microwave pulses on integrated electronic circuits is being investigated in a fundamental and generic study.


Professor Granatstein received his Ph.D. in electrical engineering and plasma physics from Columbia University in 1963.  He was a research scientist at Bell Telephone Laboratories from 1964 to 1972.  From 1972 to 1983, he was with the U.S. Naval Research Laboratory where he was head of the High Power Electromagnetic Radiation Branch. He joined the faculty at the University of Maryland in 1983. He served as the director of the Institute for Plasma Research (currently the Institute for Research in Electronics and Applied Physics) from 1988 to 1998.  In addition to his professorship at the University of Maryland, he was appointed professor of special standing at Tel Aviv University in 2004.

Honors and Awards: 

Professor Granatstein is a fellow of the American Physical Society and a life fellow of the Institute of Electrical and Electronics Engineers.   He is the recipient of the IEEE Prize in Plasma Science and Applications (1991) and the Robert L. Woods Award for Excellence in Vacuum Electronics Technology (1998).