Title :
Development of an improved two-dimensional finite-element code for cylindrically symmetric eigenmodes
Author :
Masuda, Kai ; Yoshikawa, Kiyoshi ; Ohnishi, Masami ; Yamamoto, Yasushi ; Toku, Hisayuki ; Sobajima, Masaaki ; Kitagaki, Jiro
Author_Institution :
Inst. of Adv. Energy, Kyoto Univ., Japan
fDate :
8/1/1998 12:00:00 AM
Abstract :
A new two-dimensional finite-element (FE) eigenmode solver has been developed, which is suitable for calculating cylindrically symmetric modes. The quantity Hθ/r is used in the code to describe the electromagnetic fields instead of Hθ or rHθ, which is preferentially used in the existing codes, and the new formulation with Hθ/r is found to show higher accuracy and smoother convergence with respect to the number of mesh points. Comparison is also made between linear and quadratic elements, resulting in remarkably higher accuracy by the latter
Keywords :
cavity resonators; eigenvalues and eigenfunctions; electromagnetic field theory; finite element analysis; KUEMS; RF cavity; computer code; cylindrically symmetric eigenmode; electromagnetic field; linear element; quadratic element; two-dimensional finite-element method; Central Processing Unit; Convergence; Electromagnetic fields; Equations; Finite element methods; Guns; Iron; Klystrons; Magnetic fields; Radio frequency;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
