• DocumentCode
    944747
  • Title

    Microstrip couplers with improved directivity

  • Author

    Herzog, Hans-jürgen

  • Author_Institution
    Deutsche Bundespost, Forschungsinstitut, Darmstadt, West Germany
  • Volume
    14
  • Issue
    3
  • fYear
    1978
  • Firstpage
    50
  • Lastpage
    51
  • Abstract
    Backward wave microstrip couplers with weak coupling reach small values for the directivity. This is caused by the unequal phase constants of the even and odd modes of the line waves. A very simple compensation method is shown by loading the coupler with additional coupled lines.
  • Keywords
    strip line components; backward wave microstrip couplers; compensation method; directivity; unequal phase constants;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19780036
  • Filename
    4240769