Title :
On the Reduction of the Number of Spurious Modes in the Vectorial Finite-Element Solution of Three-Dimensional Cavities and Waveguides
fDate :
2/1/1986 12:00:00 AM
Abstract :
A novel approach to the solution of three-dimensional micro-wave cavity and waveguide problems by finite elements reduces the number of spurious, nonphysical modes. Solutions are obtained in terms of the field vector H. Three-dimensional vector boundary conditions are implemented in a way that allows arbitrarily-shaped curved boundaries to be modeled. The formulation is based on a subparametric finite element with 27 interpolation nodes.
Keywords :
Boundary conditions; Eigenvalues and eigenfunctions; Finite difference methods; Finite element methods; Integral equations; Interpolation; Microwave devices; Microwave theory and techniques; Shape; Transmission line matrix methods;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.1986.1133315
