Title :
Theoretical Determination of TWT Helix Loss
Author :
Duan, Zhaoyun ; Gong, Yubin ; Wang, Wenxiang ; Wei, Yanyu
Author_Institution :
Univ. of Electron. Sci. & Technol. of China Chengdu, Chengdu
Abstract :
A general theory has been developed to account for the effect of the dielectric loss of discrete dielectric rods on traveling wave tube helix loss. It is clearly shown that the influence of dielectric loss on attenuation constant is much larger at the millimeter frequency band than that at the microwave frequency band. The general theory developed here has been further conformed by comparing the results with those obtained elsewhere for some special cases.
Keywords :
dielectric losses; dielectric resonators; travelling wave tubes; TWT helix loss; dielectric loss; discrete dielectric rods; microwave frequency band; millimeter frequency band; traveling wave tube; Attenuation; Conductivity; Dielectric losses; Dielectric materials; Frequency; Magnetic fields; Magnetic materials; Permittivity; Propagation constant; Surface resistance; dielectric loss; helix traveling wave tube; slow-wave structure; tape-helix model;
Conference_Titel :
Vacuum Electronics Conference, 2007. IVEC '07. IEEE International
Conference_Location :
Kitakyushu
Print_ISBN :
1-4244-0633-1
DOI :
10.1109/IVELEC.2007.4283393
