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About asymptotic approximations in thin waveguides
Published online by Cambridge University Press: 15 November 2005
Abstract
We study the propagation of electromagnetic waves in a guide the section of which is a thin annulus. Owing to the presence of a small parameter, explicit approximations of the TM and TE eigenmodes are obtained. The cases of smooth and non smooth boundaries are presented.
- Type
- Research Article
- Information
- ESAIM: Mathematical Modelling and Numerical Analysis , Volume 39 , Issue 6 , November 2005 , pp. 1271 - 1284
- Copyright
- © EDP Sciences, SMAI, 2005