• DocumentCode
    950117
  • Title

    Calculation of the fundamental cutoff frequency in a case of waveguides of doubly connected cross section

  • Author

    Laura, P.A.A. ; Diez, L. ; Gianetti, C. ; Luisoni, L.E. ; Grossi, R.

  • Author_Institution
    Institute of Applied Mechanics, Naval Base de Puerto Belgrano, Argentina
  • Volume
    65
  • Issue
    9
  • fYear
    1977
  • Firstpage
    1392
  • Lastpage
    1395
  • Abstract
    The lowest cutoff frequency of a circular waveguide with a concentric inner polygonal domain is determined using a conformal mapping variational approach. The results are verified by means of a modified Randall´s empirical rule. It is shown that this technique leads also to good relative accuracy in the case of polygonal domains with a concentric circular domain.
  • Keywords
    Boundary conditions; Conformal mapping; Cutoff frequency; Eigenvalues and eigenfunctions; Electromagnetic analysis; Electromagnetic propagation; Electromagnetic waveguides; Maxwell equations; Partial differential equations; Tellurium;
  • fLanguage
    English
  • Journal_Title
    Proceedings of the IEEE
  • Publisher
    ieee
  • ISSN
    0018-9219
  • Type

    jour

  • DOI
    10.1109/PROC.1977.10717
  • Filename
    1454986
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=950117