Title :
Parameters of lossy cavity resonators calculated by the finite element method
Author :
Groiss, S. ; Bardi, I. ; Biro, O. ; Preis, K. ; Richter, K.R.
Author_Institution :
Graz Univ. of Technol., Austria
fDate :
5/1/1996 12:00:00 AM
Abstract :
The calculation of the resonance frequency and quality factor of closed or aperture coupled cavity resonators with volume and wall losses by an edge finite element method is discussed. An efficient solver is developed to solve the complex nonlinear eigenvalue problem. The effect of the roughness of the walls on the quality factor is taken approximately into account
Keywords :
Q-factor; cavity resonators; eigenvalues and eigenfunctions; finite element analysis; losses; aperture coupled cavity resonators; closed cavity resonators; complex nonlinear eigenvalue problem; edge finite element method; finite element method; lossy cavity resonators; quality factor; resonance frequency; roughness; volume losses; wall losses; Apertures; Cavity resonators; Eigenvalues and eigenfunctions; Finite element methods; Q factor; Resonance; Resonant frequency; Rough surfaces; Sparse matrices; Surface roughness; Transmission line matrix methods;
Journal_Title :
Magnetics, IEEE Transactions on
