Title :
An FE Tool for the Electromagnetic Analysis of Slow-Wave Helicoidal Structures in Traveling Wave Tubes
Author :
Coco, Salvatore ; Laudani, Antonino ; Pollicino, Giuseppe ; Dionisio, Roberto ; Martorana, Rosario
Author_Institution :
Catania Univ.
fDate :
4/1/2007 12:00:00 AM
Abstract :
In this paper, the authors present a 3-D dedicated finite-element tool expressly conceived for the analysis of traveling wave tool helicoidal slow wave structures (SWSs). Accurate analysis of the SWS is a difficult task due to its complex geometry. Moreover, in order to achieve the design parameters a specific post-processing is required. Consequently, specialized 3-D numerical simulators are needed to carry out the design process. The developed tool includes a dedicated mesh generator, an eigenmode and a driven mode solver, and a post-processing module. An example of a typical SWS analysis performed by using the tool is also given
Keywords :
eigenvalues and eigenfunctions; mesh generation; slow wave structures; 3D numerical simulators; complex geometry; driven mode solver; eigenmode; electromagnetic analysis; finite element tool; helicoidal slow wave structures; mesh generators; post-processing module; slow-wave helicoidal structures; traveling wave tubes; Electromagnetic analysis; Electron beams; Finite difference methods; Finite element methods; Geometry; Graphical user interfaces; Iron; Mesh generation; Numerical simulation; Solid modeling; Eigenvalues and eigenfunctions; finite-element method (FEM); slow wave structures (SWS); traveling wave tubes (TWT);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2007.892524
