Title :
Small-signal field analysis of gyro-TWT amplifier
Author :
Kalyasundaram, N. ; Saini, Jasmine ; Babu, G. Naveen
Author_Institution :
Dept. of Electron. & Commun. Eng., Jaypee Inst. of IT, Noida, India
Abstract :
The corrected dispersion relation governing the linear interaction of a TE mode in a circular cylindrical wave guide with an annular beam of gyrating electrons in a gyro-TWT configuration is derived. When the cyclotron resonance condition is satisfied by the TE mode for a positive s-number, the small-signal theory is shown to give rise to an initial exponential growth of the mode with axial distance over a small but finite band of frequencies around the design frequency.
Keywords :
cyclotron masers; travelling wave amplifiers; TE mode; annular beam; circular cylindrical wave guide; cyclotron resonance condition; frequency finite band; gyrating electron; gyro-TWT amplifier; linear interaction; positive s-number; small-signal field analysis; Cyclotrons; Dispersion; Electron beams; Equations; Manganese; Masers; Resonant frequency; Biquadratic equation; Cyclotron resonance condition; Dispersion relation;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2011 IEEE International
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8662-5
DOI :
10.1109/IVEC.2011.5747013
