A regularized approach to the calculation of the propagation modes in a perturbed waveguide

P. D. Smith, E. D. Vinogradova, Yuriy Shestopalov

    Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

    1 Citation (Scopus)

    Abstract

    When a perfectly electrically conducting (PEC) waveguide is perturbed by the insertion of a PEC structure aligned with its axis, its propagation constants are perturbed. Two complementary approaches to the determination of change induced by the insert are described. The first provides an analytic estimate when the insert is a small flat strip. The second approach converts the underlying boundary value problem to a homogeneous Fredholm matrix equation in which the propagation constants are found from the roots of the determinant of the matrix and stable numerical processes may be employed to find the propagation constants. The second approach is not constrained by the size or shape of the inserts, and thus provides an independent estimate of the accuracy of the analytic estimate of perturbation to the propagation constants of the empty waveguide; it also determines the empty waveguide parameters themselves.
    Original languageEnglish
    Title of host publicationInternational Conference on Electromagnetics in Advanced Applications (ICEAA) 2017
    Place of PublicationPiscataway, NJ
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages1727-1730
    Number of pages4
    ISBN (Electronic)9781509044511
    ISBN (Print)9781509044528
    DOIs
    Publication statusPublished - 12 Oct 2017
    Event19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017 - Verona, Italy
    Duration: 11 Sep 201715 Sep 2017

    Conference

    Conference19th International Conference on Electromagnetics in Advanced Applications, ICEAA 2017
    CountryItaly
    CityVerona
    Period11/09/1715/09/17

    Keywords

    • Propagation constant
    • Integral equations
    • Eigenvalues and eigenfunctions
    • Kernel
    • Strips
    • Matrix converters
    • Transmission line matrix methods

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  • Cite this

    Smith, P. D., Vinogradova, E. D., & Shestopalov, Y. (2017). A regularized approach to the calculation of the propagation modes in a perturbed waveguide. In International Conference on Electromagnetics in Advanced Applications (ICEAA) 2017 (pp. 1727-1730). [8065627] Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/ICEAA.2017.8065627