Abstract
The application of the mixed finite-element method for the analysis of dispersion curves of the cylindrical waveguides with a gradient loading is considered. The test results of the algorithm and the calculations of systems with a variable refractive index are presented. The initiation of complex waves in layered waveguides is shown.
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References
G. I. Veselov and S. B. Raevskii, Layered Metal-Dielectric Waveguides (Radio Svyaz’, Moscow, 1988) [in Russian].
A. L. Delitsyn and I. V. Stepanov, Vestn. Mosk. Univ., Ser. Fiz. Astron., No. 5, 10 (2005).
Handbook of Numerical Analysis, Vol. 2, Ed. by P. G. Ciarlet and J. C. Lions (North-Holland, Amsterdam, 1990).
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Original Russian Text © A.L. Delitsyn, S.I. Kruglov, 2011, published in Vestnik Moskovskogo Universiteta. Fizika, 2011, No. 6, pp. 54–58.
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Delitsyn, A.L., Kruglov, S.I. Mixed finite elements used to analyze the real and complex modes of cylindrical waveguides. Moscow Univ. Phys. 66, 546–551 (2011). https://doi.org/10.3103/S0027134911060063
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DOI: https://doi.org/10.3103/S0027134911060063