• DocumentCode
    1550824
  • Title

    Do covariant projection elements really satisfy the inclusion condition?

  • Author

    Saorsi, S. ; Fernandes, P. ; Raffetto, M.

  • Author_Institution
    Dipt. di Elettronica, Pavia Univ., Italy
  • Volume
    45
  • Issue
    9
  • fYear
    1997
  • fDate
    9/1/1997 12:00:00 AM
  • Firstpage
    1643
  • Lastpage
    1644
  • Abstract
    Spurious modes which often are found among finite-element solutions of electromagnetic eigenvalue problems do not occur when covariant projection elements are used. It has been claimed that this happens because covariant projection elements satisfy the inclusion condition, but they do not satisfy it-as is proven in this paper
  • Keywords
    eigenvalues and eigenfunctions; finite element analysis; waveguide theory; covariant projection elements; electromagnetic eigenvalue problems; finite-element solutions; inclusion condition; spurious modes; waveguide theory; Counting circuits; Eigenvalues and eigenfunctions; Electromagnetic waveguides; Finite element methods; Lagrangian functions; Pollution; Sufficient conditions;
  • fLanguage
    English
  • Journal_Title
    Microwave Theory and Techniques, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9480
  • Type

    jour

  • DOI
    10.1109/22.622936
  • Filename
    622936
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1550824