期刊
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER
卷 92, 期 -, 页码 209-222出版社
E M W PUBLISHING
DOI: 10.2528/PIER09032704
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- Infrastructural Communication Technologies Supporting Fully Ubiquitous Information Society
The Fourier series expansion method is a useful tool to approach the problems of discontinuities in optical waveguides, and it applies to analyze the Floquet-modes of photonic crystal waveguides. This paper shows that the Floquet-mode calculation with large truncation order is limited and explains the reason. Furthermore, two techniques of the formulation are presented to relieve this limitation. One of them is a use of the symmetric properties of the Floquet-modes, and another is a use of the Rayleigh quotients to improve accuracy of eigenvalue calculation. They are validated by numerical experiments.
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