• DocumentCode
    1023814
  • Title

    The optimum grid to cathode spacing in planar triodes

  • Author

    Magdo, Steven

  • Author_Institution
    Bell Telephone Labs., Inc., Allentown, Pa.
  • Volume
    12
  • Issue
    5
  • fYear
    1965
  • fDate
    5/1/1965 12:00:00 AM
  • Firstpage
    273
  • Lastpage
    280
  • Abstract
    The behavior of planar triodes with close grid-to-cathode spacings is investigated theoretically and experimentally. Special attention is paid to island formation dimensional variation initial electron velocity and cathode coating resistance. A formula is derived for the optimum grid-to-cathode spacing which yields maximum transconductance, maximum power gain-band product and minimum noise figure.
  • Keywords
    Cathodes; Coatings; Current density; Electron emission; Helium; Manufacturing; Noise figure; Transconductance; Voltage; Wires;
  • fLanguage
    English
  • Journal_Title
    Electron Devices, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9383
  • Type

    jour

  • DOI
    10.1109/T-ED.1965.15493
  • Filename
    1473957