li shi, liu wei, su xiao bao, et al. Effect of pressed helix in helical slowwave structure on TWT coldtest characteristics[J]. High Power Laser and Particle Beams, 2004, 16.
Citation:
li shi, liu wei, su xiao bao, et al. Effect of pressed helix in helical slowwave structure on TWT coldtest characteristics[J]. High Power Laser and Particle Beams, 2004, 16.
li shi, liu wei, su xiao bao, et al. Effect of pressed helix in helical slowwave structure on TWT coldtest characteristics[J]. High Power Laser and Particle Beams, 2004, 16.
Citation:
li shi, liu wei, su xiao bao, et al. Effect of pressed helix in helical slowwave structure on TWT coldtest characteristics[J]. High Power Laser and Particle Beams, 2004, 16.
In this paper, the quasiperiodic boundary conditions in the computer code MAFIA was used to determine the effect on dispersion and onaxis interaction impedance of helical slowwave structure. The Finite Element Method softwareANSYS was used to simulate the helix pressed distortion. And then the effect of pressed helix in helical slowwave structure on TWT coldtest characteristics was analysed in detail. The results show that both dispersion and onaxis interaction impedance of helical slowwave structure increase due to helix deformation generally, when the radial relative deformation is less than 1%.While radial relative deformation is more than 1%, the onaxis interaction impedance will decrease.