Title :
Investigation of ultrawideband pulses in wideband helix traveling wave tubes
Author :
Converse, M.C. ; Booske, J.H. ; Hagness, S.C. ; Wöhlbier, J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
The paper deals about the investigations of transient TWT excitation. The numerical simulations are largely based on a 1D time-domain model, as well as the frequency domain code LATTE. The time domain code models the particles, including space charge, using the particle-in-cell method. Fields are calculated using the pseudo-spectral time-domain method with a modification to incorporate helix waveguide dispersion effects and attenuation into a 1D model. Both models have been validated against experimental measurements on the XWING TWT.
Keywords :
digital simulation; space charge; time-domain analysis; transient response; travelling wave tubes; 1D time-domain model; LATTE; TWT excitation; frequency domain code; numerical simulations; pseudo-spectral time domain method; space charge; transient response; ultrawideband pulses; waveguide dispersion effects; wideband helix traveling wave tubes; Electron tubes; Frequency domain analysis; Nonlinear distortion; Power generation; Predictive models; Pulse amplifiers; Pulse shaping methods; Signal resolution; Ultra wideband technology; Voltage;
Conference_Titel :
Vacuum Electronics, 2003 4th IEEE International Conference on
Print_ISBN :
0-7803-7699-4
DOI :
10.1109/IVEC.2003.1286357
