Analysis of cylindrical waveguide discontinuities using vectorial eigenmodes and perfectly matched layers

Analysis of cylindrical waveguide discontinuities using vectorial eigenmodes and perfectly matched layers

In this paper, we analyze the scattering at discontinuities in cylindrical waveguides, starting from a vectorial eigenmode expansion and by introducing perfectly matched layer (PML) boundary conditions. The structure under study is enclosed in a metal cylinder to discretize the radiative mode spectr...

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Veröffentlicht in:IEEE transactions on microwave theory and techniques 2001-02, Vol.49 (2), p.349-354
Hauptverfasser: Bienstman, P., Derudder, H., Baets, R., Olyslager, F., De Zutter, D.
Format: Artikel
Sprache:eng
Schlagworte:
Boundary conditions
Coatings
Cylinders
Discontinuity
Light scattering
Microwaves
Optical fibers
Optical reflection
Optical scattering
Optical waveguides
Perfectly matched layers
Reflection
Scattering
Vertical cavity surface emitting lasers
Waveguide discontinuities
Waveguide discontinuity
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Beschreibung
Zusammenfassung:In this paper, we analyze the scattering at discontinuities in cylindrical waveguides, starting from a vectorial eigenmode expansion and by introducing perfectly matched layer (PML) boundary conditions. The structure under study is enclosed in a metal cylinder to discretize the radiative mode spectrum, while the coating of this cylinder with PML vastly reduces the influence of parasitic reflections at the metal. This allows for a model that is both faster and more accurate than previous models.
ISSN:0018-9480
1557-9670
DOI:10.1109/22.903096