Title :
3-D electromagnetic field mode analysis using finite element method by edge element
Author :
Sakiyama, K. ; Kotera, H. ; Ahagon, A.
Author_Institution :
Matsushita Electr. Ind. Co. Ltd., Osaka, Japan
fDate :
9/1/1990 12:00:00 AM
Abstract :
A method of calculating the 3-D electromagnetic field mode using the finite-element method is presented. A variational finite-element method is derived from edge elements which are based on the ordinary formulation of isoparametric elements. The nondivergent condition of the electric or magnetic field can be taken into account in this edge element. The proposed program can solve eigenvalue problems directly because nonphysical spurious solutions can be eliminated as zero eigenvalue modes. This method is applied to the mode analysis of a magnetron cavity resonator. The resonant frequency and eigenvector are calculated successfully
Keywords :
cavity resonators; eigenvalues and eigenfunctions; electromagnetic field theory; finite element analysis; magnetrons; variational techniques; 3D analysis; edge element; eigenvalue problems; eigenvector; electric field; electromagnetic field mode analysis; isoparametric elements; magnetic field; magnetron cavity resonator; nondivergent condition; nonphysical spurious solutions; resonant frequency; variational finite-element method; zero eigenvalue modes; Cavity resonators; Eigenvalues and eigenfunctions; Electromagnetic analysis; Electromagnetic fields; Finite element methods; Magnetic analysis; Magnetic fields; Magnetic flux; Maxwell equations; Shape;
Journal_Title :
Magnetics, IEEE Transactions on
