Title :
Overmoded GW-class surface-wave microwave oscillator
Author :
Vlasov, Alexander N. ; Shkvarunets, Anatoly G. ; Rodgers, John C. ; Carmel, Yuval ; Antonsen, Thomas M., Jr. ; Abuelfadl, Tamer M. ; Lingze, Duan ; Cherepenin, Vladimir A. ; Nusinovich, Gregory S. ; Botton, Moti ; Granatstein, Victor L.
Author_Institution :
Sci. Applications Int. Corp., McLean, VA, USA
fDate :
6/1/2000 12:00:00 AM
Abstract :
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
Keywords :
electron field emission; electron guns; microwave oscillators; slow wave structures; 0.5 GW; 500 kV; 8.3 GHz; beam-wave coupling; coaxial magnetically insulated field emission electron gun; coaxial microwave extraction section; internal adjustable microwave reflector; large cross-section overmoded slow-wave structure; overmoded GW-class surface-wave microwave oscillator; surface waves; Coaxial components; Electron beams; Electron emission; Insulation; Magnetic devices; Microwave devices; Microwave oscillators; Optical coupling; Surface waves; Voltage;
Journal_Title :
Plasma Science, IEEE Transactions on
