DocumentCode :
2901961
Title :
Analysis of BWO start oscillation condition in the practical TWT
Author :
Duan, Zhaoyun ; Gong, Yubin ; Wang, Wenxiang
Author_Institution :
Nat. Key Lab. of High Power Vacuum Electron., UESTC, Chengdu, China
fYear :
2004
fDate :
6-10 Sept. 2004
Firstpage :
315
Abstract :
Summary form only given. Attenuator or sever always exists in a practical traveling-wave tube (TWT) for improving gain and suppressing the oscillation, including backward-wave oscillation (BWO). The influencing factors include start position and length as well as attenuation quantity of the attenuators. In the event that the attenuator or sever was considered, a linear theory was employed to analyze BWO start oscillation condition. Numerical results show that the start oscillation length is decreasing when the start position of the attenuator is close to the input section. Start oscillation current of the output section is increasing as the attenuation length decreasing, or the attenuation quantity increasing.
Keywords :
attenuators; backward wave oscillators; travelling wave tubes; attenuation quantity; attenuator; backward-wave oscillation; linear theory; oscillation gain; oscillation suppression; phase velocity taper; practical traveling-wave tube; start oscillation condition; voltage gradient; Attenuation; Attenuators; Electron tubes; Laboratories; Telephony; Vacuum technology; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vacuum Electron Sources Conference, 2004. Proceedings. IVESC 2004. The 5th International
Print_ISBN :
0-7803-8437-7
Type :
conf
DOI :
10.1109/IVESC.2004.1414253
Filename :
1414253
Link To Document :
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