• DocumentCode
    1762385
  • Title

    Planar ultra-wideband balun using coupled microstrip lines

  • Author

    Abbosh, Amin

  • Author_Institution
    Sch. of ITEE, Univ. of Queensland, St. Lucia, QLD, Australia
  • Volume
    49
  • Issue
    10
  • fYear
    2013
  • fDate
    May 9 2013
  • Firstpage
    662
  • Lastpage
    664
  • Abstract
    A planar balun based on using parallel-coupled microstrip lines is presented. It is designed to transfer the unbalanced microstrip line to a balanced coplanar stripline as needed in many applications such as centre-fed dipole antennas. The balun includes a T-junction of stepped-impedance and tapered microstrip lines and two pairs of stepped-impedance parallel-coupled lines. The designed balun covers the band from 3 to 11 GHz with less than 0.4 dB insertion loss.
  • Keywords
    antenna feeds; baluns; coplanar waveguides; dipole antennas; microstrip lines; T-junction; balanced coplanar stripline; centre-fed dipole antennas; frequency 3 GHz to 11 GHz; parallel-coupled microstrip lines; planar ultra-wideband balun; stepped-impedance; tapered microstrip lines; unbalanced microstrip line;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2013.0922
  • Filename
    6528812