Overmoded GW-class surface-wave microwave oscillator

Alexander N. Vlasov, Anatoly G. Shkvarunets, John C. Rodgers, Yuval Carmel, Thomas M. Antonsen, Tamer M. Abuelfadl, Duan Lingze, Vladimir A. Cherepenin, Gregory S. Nusinovich, Moti Botton, Victor L. Granatstein

Research output: Contribution to journalArticlepeer-review

199 Scopus citations


Results of theoretical and experimental studies of a GW-class, large diameter microwave oscillator are presented. The device consists of a large cross-section (overmoded), slow-wave structure with a unique profile of wall radius specifically designed to support surface waves and to provide a strong beam-wave coupling at moderate voltage (500 kV), an internal adjustable microwave reflector, a coaxial microwave extraction section, and a coaxial magnetically insulated field emission electron gun. In preliminary experiments carried out at 8.3 GHz, the power level exceeding 0.5 GW and efficiency of 15% have been measured calorimetrically.

Original languageAmerican English
Pages (from-to)550-560
Number of pages11
JournalIEEE Transactions on Plasma Science
Issue number3
StatePublished - Jun 2000
Externally publishedYes


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