Title :
3D FE analysis of TWT multistage depressed collectors
Author :
Coco, S. ; Laudani, Antonino
Author_Institution :
DEES, Catania Univ., Italy
Abstract :
A full 3D finite-element (FE) electron-trajectory analysis of a multistage depressed collector concerning an existing magnetically focused TWT is presented. The aim of this analysis is to show the effectiveness of a 3D FE approach by comparing the obtained results with analogous ones, available from the KOBRA code. The tool used for the simulation is the COCA code.
Keywords :
electron beam focusing; finite element analysis; travelling wave tubes; COCA code; delay line magnet; electron-trajectory analysis; equivalent ideal loop sources; field superposition; full 3D finite-element analysis; hollow cylinder; magnetically focused TWT; multistage depressed collector; normalized energy distribution; Computational modeling; Delay lines; Electrodes; Finite element methods; Geometry; Iron; Magnetic analysis; Magnetic devices; Magnetic fields; Particle beams;
Conference_Titel :
Vacuum Electronics Conference, 2002. IVEC 2002. Third IEEE International
Print_ISBN :
0-7803-7256-5
DOI :
10.1109/IVELEC.2002.999364
