A 2.5-D FEM Method for the Efficient Analysis of Waveguide Geometries With Cylindrical Insets

A 2.5-D FEM Method for the Efficient Analysis of Waveguide Geometries With Cylindrical Insets

A new 2.5-D finite-element analysis method for waveguide geometries with cylindrical inclusion is presented. The method makes use of two 2-D meshes: one for the Cartesian geometry and one for the cylindrical geometry. The full 3-D solution is then obtained by combining several uncoupled 2.5-D proble...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 2024-12, p.1-12
Hauptverfasser: Codecasa, Lorenzo, D'Asta, Cristina, Gentili, Gian Guido, Oldoni, Matteo, Rubia, Valentin de la
Format: Artikel
Sprache:eng
Schlagworte:
Accuracy
Admittance
Dielectrics
Finite element analysis
Finite-element method (FEM)
Geometry
Rectangular waveguides
Resonators
Shape
Three-dimensional displays
Transmission line matrix methods
transmission zeros (TZs)
waveguide filters
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Zusammenfassung:A new 2.5-D finite-element analysis method for waveguide geometries with cylindrical inclusion is presented. The method makes use of two 2-D meshes: one for the Cartesian geometry and one for the cylindrical geometry. The full 3-D solution is then obtained by combining several uncoupled 2.5-D problems which are solved separately. Excellent efficiency and accuracy were observed when compared to the full 3-D finite-element method (FEM). Examples of applications are shown addressing dielectric resonators and metallic-post filters.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2024.3510875