Title :
Three-dimensional FE modeling of multistage depressed TWT collectors
Author_Institution :
Dipt. Elettrico, Elettron. e Sistemistico, Catania Univ., Italy
fDate :
9/1/2001 12:00:00 AM
Abstract :
In this paper a fully three-dimensional (3-D) finite element (FE) approach for the electromagnetic analysis of multistage depressed travelling wave tube (TWT) collectors is presented. In the model a coupled stationary electromechanical problem is iteratively solved; convergence to solution is obtained by using a congruent representation of the unknown 3-D spatial charge density. A FE computer code, based on the above iterative scheme, has been developed and used to carry out several 3-D analyses of TWT collectors
Keywords :
finite element analysis; iterative methods; travelling wave tubes; congruent representation; coupled stationary electromechanical problem; electromagnetic analysis; iterative scheme; multistage depressed TWT collectors; three-dimensional FE modeling; unknown 3D spatial charge density; Benchmark testing; Electromagnetic analysis; Electron beams; Equations; Finite element methods; Geometry; Iron; Solid modeling; Space charge; Spaceborne radar;
Journal_Title :
Magnetics, IEEE Transactions on
