• DocumentCode
    926491
  • Title

    New broadband balun

  • Author

    Bex, H.

  • Author_Institution
    Philips, Research Laboratories, Aachen, West Germany
  • Volume
    11
  • Issue
    2
  • fYear
    1975
  • Firstpage
    47
  • Lastpage
    48
  • Abstract
    The letter describes a new balun composed of a modified `rat race¿ with an open-circuit impedance at the uncoupled port. The advantage of this device is the great bandwidth, together with its very small dimensions. The performance of a layout on an alumina substrate is compared with theorotical predictions. For a midband frequency of 2.5 GHz, a bandwidth ratio of 52% and dimensions smaller than 1 cm2 on a 10 mil-thick alumina substrate are typical.
  • Keywords
    strip line components; alumina substrate; broadband balun; open circuit impedance; rat race; stripline components;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19750036
  • Filename
    4236543