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The Propagation Characteristics of 2-D Metamaterial Waveguides Using the Modal Expansion Theory

Lucille Kuhler 1 Gwenn Le Fur 2 Luc Duchesne 3 Nathalie Raveu 1
1 LAPLACE - LAboratoire PLasma et Conversion d'Energie
2 CNES - Centre National d'Études Spatiales [Toulouse]
3 MVG Industries
Abstract :  Abstract-In this article, the Modal Expansion Theory is applied to 2D metamaterial cylindrical waveguides. A new code to compute the surface impedances with 2D Finite Element Method is put forward. The surface impedances depend on the frequency and the incidence angle. The characterization of propagation in a 2D metamaterial waveguide is presented by using the Modal Expansion Theory and 2D Finite Element Method. Comparisons with the software HFSS are carried out in order to validate the new method.
Keywords : Modal Expansion Theory Index Terms-Anisotropic surface impedances cylindrical waveguides dispersion diagrams metamaterials
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Lucille Kuhler, Gwenn Le Fur, Luc Duchesne, Nathalie Raveu. The Propagation Characteristics of 2-D Metamaterial Waveguides Using the Modal Expansion Theory. IEEE Transactions on Microwave Theory and Techniques, Institute of Electrical and Electronics Engineers, 2018, 66 (10), pp.4319-4326. ⟨10.1109/TMTT.2018.2859944⟩. ⟨hal-02439737⟩

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