Title :
Relativistic BWO with resonant reflector
Author :
Korovin, S.D. ; Kurkan, Ivan K. ; Pegel, L. ; Rostov, V.V. ; Totmeninov, Eugene M.
Author_Institution :
High Current Electron. Inst., Tomsk, Russia
Abstract :
Summary form only given. The paper presents the theoretical and experimental studies of an X-band BWO having the electrodynamic system with a resonant reflector which serves for reflection of the backward wave and output of microwave power towards the collector edge of the tube. As in the majority of relativistic BWOs, the lowest axisymmetric TM-wave of a circular waveguide is used as the operating wave. However, instead of the traditional beyond cutoff-neck (having the diameter /spl sim/0.7 /spl lambda/), a short resonant cavity-a circular slot-is used as a reflector. The low-Q oscillation is formed by the "locked" wave TM/sub 02/ and therefore the minimum diameter of the system can rise up to /spl sim/1.5 /spl lambda/.
Keywords :
Q-factor; backward wave oscillators; cavity resonators; circular waveguides; microwave generation; microwave oscillators; microwave tubes; relativistic electron beam tubes; simulation; slow wave structures; TM/sub 02/ mode; X-band BWO; axisymmetric TM-wave; backward wave; beyond cutoff-neck; circular slot; circular waveguide; collector edge; electrodynamic system; locked wave; low-Q oscillation; microwave power; minimum diameter; operating wave; reflector; relativistic BWO; resonant reflector; short resonant cavity; Computational modeling; Diffraction; Electrodynamics; Electron beams; Electron tubes; Optical reflection; Phase modulation; Q factor; Resonance; Resonant frequency;
Conference_Titel :
Plasma Science, 1997. IEEE Conference Record - Abstracts., 1997 IEEE International Conference on
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-3990-8
DOI :
10.1109/PLASMA.1997.605008
