• DocumentCode
    1498303
  • Title

    Numerical study of waveguide endwall slot feed microstrip arrays

  • Author

    Gray, D.P. ; Shafai, L.

  • Author_Institution
    Dept. of Electr. & Comput. Eng., Manitoba Univ., Winnipeg, Man., Canada
  • Volume
    37
  • Issue
    11
  • fYear
    2001
  • fDate
    5/24/2001 12:00:00 AM
  • Firstpage
    673
  • Lastpage
    675
  • Abstract
    An initial numerical study of a 4×4 microstrip array excited by a rectangular waveguide endwall slot is described. This design is a candidate for an LMDS subscriber equipment antenna. Direct coupling via a slot avoids the use of a probe, which prior investigators have shown to be detrimental to manufacturing yield at LMDS band. Tapering the short sides of the rectangular waveguide feed is shown to improve the input impedance matching here, with the optimal taper length being about λg/2. The input impedance bandwidth was 5.2%
  • Keywords
    antenna feeds; antenna radiation patterns; antenna theory; impedance matching; microstrip antenna arrays; numerical analysis; rectangular waveguides; LMDS subscriber equipment antenna; direct coupling; input impedance bandwidth; input impedance matching; numerical study; optimal taper length; rectangular waveguide endwall slot; rectangular waveguide feed; slot feed microstrip arrays;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20010448
  • Filename
    926433
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1498303