• DocumentCode
    386969
  • Title

    The directional coupler antenna

  • Author

    Fink, Colin

  • Author_Institution
    Litton Industries, College Park, MD, USA
  • Volume
    7
  • fYear
    1966
  • fDate
    21-25 March 1966
  • Firstpage
    103
  • Lastpage
    118
  • Abstract
    The combination of four broadband 3 db directional couplers and four radiating elements into an antenna for direction-finding purposes has been investigated. Under theoretical conditions, two overlapping beams with constant crossover level and variable crossover slope over an infinite frequency band can be obtained. All four radiators are active in producing each of the two main lobes for simultaneous comparison, thereby providing the pattern effect of two antennas of similar dimensions. Practically, an antenna pattern with crossover level 3 to 5 db below beam maximum, and pointing accuracy of \\pm0.75 degrees over a 2. 2 to 1 bandwidth has been achieved.
  • Keywords
    Antenna radiation patterns; Aperture antennas; Bandwidth; Broadband antennas; Directional couplers; Directive antennas; Educational institutions; Frequency; Navigation; Shape;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    1958 IRE International Convention Record
  • Conference_Location
    New York, NY, USA
  • Type

    conf

  • DOI
    10.1109/IRECON.1959.1150788
  • Filename
    1150788
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=386969