• DocumentCode
    2003961
  • Title

    Numerical modeling of cavities with low external Q

  • Author

    Cooke, Simon J.

  • Author_Institution
    Naval Res. Lab., Washington, DC
  • fYear
    2008
  • fDate
    22-24 April 2008
  • Firstpage
    280
  • Lastpage
    281
  • Abstract
    We describe a new simulation technique to find the resonant frequencies and Qs of cavity eigenmodes when the cavity is coupled to an external waveguide. The method treats the cavity first as a closed system to find a set of lossless eigenmodes, then couples this system to a representation of the external waveguide to determine the coupled mode frequency and Qexternal. There is no assumption of weak coupling, and the technique is ideal for the analysis of very low-Q output cavities for RF amplifiers.
  • Keywords
    Q-factor; eigenvalues and eigenfunctions; waveguide theory; RF amplifiers; coupled mode frequency; eigenmodes; external waveguide; low external Q cavities; numerical modeling; resonant frequencies; Boundary conditions; Circuit simulation; Electromagnetic analysis; Electromagnetic waveguides; Equations; Klystrons; Numerical models; Performance analysis; Resonance; Resonant frequency; broadband cavity; electromagnetic simulation; klystron simulation;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Vacuum Electronics Conference, 2008. IVEC 2008. IEEE International
  • Conference_Location
    Monterey, CA
  • Print_ISBN
    978-1-4244-1715-5
  • Type

    conf

  • DOI
    10.1109/IVELEC.2008.4556342
  • Filename
    4556342
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2003961