Spectral Numerical Green’s Function Based Eigenanalysis for Cavity Perturbations
| Autor: | Qin S. Liu, Weng Cho Chew, Tian Xia, Hui H. Gan, Qi I. Dai |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Physics
Series (mathematics) Solenoidal vector field Mathematical analysis 020206 networking & telecommunications 02 engineering and technology Function (mathematics) 01 natural sciences symbols.namesake Green's function 0103 physical sciences Convergence (routing) 0202 electrical engineering electronic engineering information engineering symbols Physics::Accelerator Physics Wavenumber 010306 general physics Spurious relationship Eigenvalues and eigenvectors |
| Zdroj: | 2019 URSI International Symposium on Electromagnetic Theory (EMTS). |
| DOI: | 10.23919/ursi-emts.2019.8931460 |
| Popis: | Efficient eigenanalyses are proposed for cavities which are geometrically or materially perturbed. The method leverages the spectral representation of the numerical Green’s function (NGF) of the unperturbed cavity system. The convergence of the series formed by resonant solenoidal modes is accelerated by performing an NGF extraction at one low wavenumber. With spectral NGFs, this approach gives rise to small, linear matrix eigenvalue problems without the generation of spurious DC modes. |
| Databáze: | OpenAIRE |
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