li wen-jun, xu zhou, lin yu-zheng, et al. Three-dimensional simulation of a broadband high-power CW S-band coupled-cavity traveling-wave tube[J]. High Power Laser and Particle Beams, 2006, 18.
Citation:
li wen-jun, xu zhou, lin yu-zheng, et al. Three-dimensional simulation of a broadband high-power CW S-band coupled-cavity traveling-wave tube[J]. High Power Laser and Particle Beams, 2006, 18.
li wen-jun, xu zhou, lin yu-zheng, et al. Three-dimensional simulation of a broadband high-power CW S-band coupled-cavity traveling-wave tube[J]. High Power Laser and Particle Beams, 2006, 18.
Citation:
li wen-jun, xu zhou, lin yu-zheng, et al. Three-dimensional simulation of a broadband high-power CW S-band coupled-cavity traveling-wave tube[J]. High Power Laser and Particle Beams, 2006, 18.
Quantitative analysis of the large-signal beam-wave interaction of coupled-cavity traveling-wave tube (TWT) is performed using three-dimensional PIC code. With an integrated model, an S-band CW coupled-cavity TWT is designed. The design parameters of this tube are：operating frequency from 2.0 GHz to 2.3 GHz，output power 4.3 kW，gain fluctuation ±0.7 dB. In order to reduce the computing error of interaction impedance, a method using perturbation dielectric rod with big dielectric constant is proposed. Cold cavity characteristic of coupled-cavity TWT is also studied and the simulation results of dispersion and interaction impedance are given.
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