Title :
A hybrid mode matching/FEM technique with edge elements for solving waveguides discontinuity problems
Author :
Arena, D. ; Ludovico, M. ; Manara, Giuliano ; Monorchio, A.
Author_Institution :
Dipt. di Ingegneria de Inf., Pisa Univ., Italy
Abstract :
A hybrid mode matching/finite element method (FEM) for the analysis of waveguide discontinuities is presented. The method combines the computational efficiency of the modal analysis with the versatility and flexibility of the FEM, and enables us to accurately model geometries where a modal expansion is not available. Moreover, the use of Whitney´s edge element within the FEM region allows us to overcome the problem of the spurious solutions arising in nodal FEM. Numerical results that illustrate the accuracy of the method are presented.
Keywords :
finite element analysis; modal analysis; mode matching; waveguide discontinuities; waveguide theory; Whitney´s edge element; computational efficiency; edge elements; finite element method; hybrid mode matching/FEM technique; method accuracy; modal analysis; nodal FEM; waveguides discontinuity problems; Eigenvalues and eigenfunctions; Finite element methods; Geometry; Matched filters; Partial differential equations; Propagation constant; Transmission line matrix methods; Waveguide components; Waveguide discontinuities; Waveguide junctions;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2000. IEEE
Conference_Location :
Salt Lake City, UT, USA
Print_ISBN :
0-7803-6369-8
DOI :
10.1109/APS.2000.874891
