IEEE transactions on microwave theory and techniques, 2012-08, Vol.60 (8), p.2359-2369
2012
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- Autor(en) / Beteiligte
- Titel
- A Spurious-Free Discontinuous Galerkin Time-Domain Method for the Accurate Modeling of Microwave Filters
- Ist Teil von
- IEEE transactions on microwave theory and techniques, 2012-08, Vol.60 (8), p.2359-2369
- Ort / Verlag
- New York, NY: IEEE
- Erscheinungsjahr
- 2012
- Quelle
- IEEE/IET Electronic Library
- Beschreibungen/Notizen
- The simulation of highly resonant structures requires techniques that are accurate and free of spurious-mode contamination. Spurious modes can severely corrupt the solution of a physical problem, and their suppression is a must for any numerical scheme in the frequency or in the time domain (TD). In this paper, we present the application of a highly accurate spurious-free vector discontinuous Galerkin TD method to waveguide applications. We show that spurious solutions (which increase with the number of degrees of freedom of the problem) can be efficiently attenuated by using penalized fluxes. For validation, we apply our approach to the simulation of microwave filters since their highly resonant behavior is challenging for TD techniques.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0018-9480eISSN: 1557-9670DOI: 10.1109/TMTT.2012.2202683Titel-ID: cdi_proquest_miscellaneous_1315672680
- Format
- –
- Schlagworte
- Applied sciences, Approximation methods, Attenuation, Circuit properties, Degrees of freedom, Discontinuous Galerkin, Dispersion, Electric, optical and optoelectronic circuits, Electronics, Equations, Exact sciences and technology, Finite element methods, finite-element methods (FEMs), Galerkin methods, Harmonic analysis, Mathematical analysis, Mathematical models, Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits, Microwave filters, Microwaves, Moment methods, numerical dispersion, spurious modes, time-domain (TD) analysis, Vectors, Vectors (mathematics)