Efficient excitation of waveguides in Crank-Nicolson FDTD

S. G. Garcia, F. Costen, M. Fernandez Pantoja, L. D. Angulo, J. Alvarez

    Research output: Contribution to journalArticlepeer-review


    In this paper, we present a procedure to calculate the discrete modes propagated with Crank-Nicolson FDTD in metallic waveguides. This procedure enables the correct excitation of this kind of waveguides at any resolution. The problem is reduced to solving an eigenvalue equation, which is performed, both in a closed form, for the usual rectangular waveguide, and numerically in the most general case, validated here with a ridged rectangular waveguide.
    Original languageEnglish
    Pages (from-to)27-38
    Number of pages11
    JournalProgress In Electromagnetics Research Letters
    Publication statusPublished - 2010


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