Title :
Mechanism of microwave pulse shortening in the relativistic backward wave oscillator
Author :
Korovin, S.D. ; Mesyats, G.A. ; Pegel, I.V. ; Polevin, S.D. ; Tarakanov, V.P.
Author_Institution :
Inst. of High-Current Electron., Acad. of Sci., Tomsk, Russia
Abstract :
It is demonstrated that pulse shortening occurring in the relativistic BWO at gigawatt power level is accompanied by the appearance of an explosive-emission plasma on the surface of the corrugated slow wave structure. Termination of microwave emission is explained in terms of absorption of the operating electromagnetic wave by electrons emitted from the plasma while the intensity of absorption is radically increased by the presence of positive ions emitted from the plasma
Keywords :
backward wave oscillators; electromagnetic wave absorption; plasma electromagnetic wave propagation; relativistic electron beam tubes; slow wave structures; corrugated slow wave structure; electromagnetic wave absorption; explosive-emission plasma; gigawatt power level; microwave emission termination; microwave pulse shortening mechanism; positive ions; relativistic BWO; Cathodes; Electron beams; Electron emission; Explosives; Microwave oscillators; Plasma devices; Plasma sources; Plasma waves; Space vector pulse width modulation; Voltage;
Conference_Titel :
Electronics and Radiophysics of Ultra-High Frequencies, 1999. International University Conference Proceedings
Conference_Location :
St Petersburg
Print_ISBN :
5-7422-0083-8
DOI :
10.1109/UHF.1999.787923
