Title :
The study of dispersion shaping and harmonic suppression in helix TWT
Author :
Zhu, Zhaojun ; Jia, Baofu ; Wan, Deming ; Shuai, Ding
Author_Institution :
Inst. of Appl. Phys., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In the helix traveling-wave tube (TWT), the dispersion shaping and harmonic suppression is studied from theory analysis to simulation investigation in this paper. The negative dispersion is formed to suppress the harmonic content by the loaded slow-wave structure (SWS). After the dispersion shaping, the fundamental output power increases about 40 W and the second harmonic level decreases about 6 dB at the low end of the frequency band.
Keywords :
dispersion (wave); travelling wave tubes; dispersion shaping; harmonic suppression; helix TWT; helix traveling-wave tube; negative dispersion; slow-wave structure; Analytical models; Dielectric losses; Dispersion; Electromagnetic scattering; Electron beams; Frequency; Harmonic analysis; Harmonics suppression; Power generation; Power system harmonics; dispersion shaping; harmonic suppression; helix; traveling-wave tube;
Conference_Titel :
Vacuum Electronics Conference, 2009. IVEC '09. IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-3500-5
Electronic_ISBN :
978-1-4244-3501-2
DOI :
10.1109/IVELEC.2009.5193472
