Dr. Christian Rauscher Receives Washington Academy of Sciences Award

9/13/2002 - 44-02r
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Dr. Christen Rauscher, a scientist in the Naval Research Laboratory's (NRL's) Electronics Science and Technology Division, recently received the Engineering Sciences Award from the Washington Academy of Sciences. Dr. Rauscher was recognized for "his contributions to the understanding and development of miniature, high-performance microwave filters and filter banks." The award was present at a ceremony held in May 2002.

Dr. Rauscher's research centers on the pursuit of new high-frequency circuit concepts. His early work dealt with nonlinear signal interaction in microwave field-effect transistors, starting with the derivation of the quasi-static approach to modeling the large-signal behavior of such transistors. The technique later became the cornerstone of all commercial computer-based nonlinear-microwave-circuit analysis tools. This was followed by derivations of novel techniques for designing microwave power amplifiers, frequency multipliers, regenerative frequency dividers, and voltage-controlled oscillators for optimum large-signal performance. More recently, Dr. Rauscher played a key role in the development of the NRL micro-air-vehicle-based high-frequency jammer. His current focus is on the urgent need for miniature, high-performance microwave filters and filter banks. He introduced and demonstrated the first logarithmic-periodic frequency multiplexer and the first microwave channelized active filter. It is for this work that the Washington Academy of Sciences awarded him this year's Engineering Sciences Award.

Dr. Rauscher received the Diploma in electrical engineering and his Doctorate degree from the Swiss Federal Institute of Technology, Zürich, Switzerland, in 1969 and 1975, respectively. From 1976 to 1978, he held an international fellowship from the Swiss National Science Foundation to pursue research at Cornell University, Ithaca, NY, and at NRL. He subsequently joined NRL, where he is currently Staff Consultant to the Microwave Technology Branch, after having spent a sabbatical year at the Los Alamos National Laboratory, Los Alamos, NM, from 1985 to 1986, and having served from 1986 until earlier this year as head of the Solid-State Circuits Section.

Dr. Rauscher, who has been a Fellow of the IEEE since 1989, recently completed a three-year term as an IEEE Distinguished Microwave Lecturer. He was the recipient of the1987 IEEE Microwave Prize, the 1991 NRL Sigma Xi Applied Science Award, and the 1999 IEEE Microwave Application Award. Local recognition also included six NRL Research Publication Awards, an Edison Patent Award, and a Technology Transfer Award. Dr. Rauscher holds 13 patents on his various circuit inventions.

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