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To overcome the limitation in bandwidth and power capacity of Traveling-Wave in Ceramic (TWC) coaxial window, a wide-band high-power coaxial window is proposed. Using CST Microwave Studio, a L-band wide-band high-power coaxial window is optimized and the performance is compared with half-wavelength coaxial window and TWC coaxial window, which shows wider bandwidth and higher power capacity of the...
A useful design technique of helix pitch profile for high-efficiency Traveling-Wave tubes (TWTs) is put forward. The purpose of the design technique is to increase the normalized axial growth rate of ac electric field amplitude by selecting an appropriate helix pitch profile and so that the power and efficiency are maximized.
Electron optics designer (EOS) (Tao Huang et al., 2007) is a fully three-dimensional (3D) finite- element (FE) steady- state trajectory code, which is a solver of electrostatic field and trajectory that takes into account secondary electron, space-charge effect and external magnetic field. To validate the code, this paper illustrated two typical experimental verifications of electron gun and collector.
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