Title :
Analysis of 3-D microwave resonators using covariant-projection elements
Author :
Webb, J.P. ; Miniowitz, Ruth
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
fDate :
11/1/1991 12:00:00 AM
Abstract :
Three-dimensional microwave resonators of arbitrary shape can be analyzed with the finite element method using covariant-projection elements, curvilinear bricks which impose only tangential field continuity. The method produces no spurious modes, and works well even when sharp metal edges are present. The matrices involved, though large, are sparse; an appropriate sparse eigenvalue algorithm allows the method to run using modest amounts of memory. Results are presented for a number of test cases, including a rectangular microstrip resonator
Keywords :
finite element analysis; microwave devices; resonators; strip line components; 3D resonators; FEM; covariant-projection elements; finite element method; microwave resonators; rectangular microstrip resonator; sharp metal edges; sparse eigenvalue algorithm; sparse matrices; tangential field continuity; Covariance matrix; Eigenvalues and eigenfunctions; Finite element methods; Magnetic analysis; Magnetic fields; Magnetic resonance; Microwave devices; Microwave theory and techniques; Shape; Sparse matrices;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
