• DocumentCode
    1392434
  • Title

    Ka-band high efficiency asymmetric MMIC power combiner for space communications

  • Author

    Wintucky, Edwin G. ; Simons, Rainee N. ; Chevalier, C.T. ; Freeman, J.C.

  • Author_Institution
    NASA Glenn Res. Center, Cleveland, OH, USA
  • Volume
    46
  • Issue
    1
  • fYear
    2010
  • Firstpage
    91
  • Lastpage
    93
  • Abstract
    A novel Ka-band (32.05 + 0.25 GHz) high efficiency asymmetric waveguide four-port combiner for coherent combining of two monolithic microwave integrated circuit (MMIC) power amplifiers having unequal outputs has been successfully designed, fabricated and characterised. The measured combiner efficiency is greater than 90%, the return loss greater than 18 dB and isolation greater than 22 dB. Applications considered are NASA´s space communications systems needing 8-15 W of RF power.
  • Keywords
    MMIC power amplifiers; power combiners; space communication links; Ka-band; NASA space communications; asymmetric MMIC power combiner; asymmetric waveguide; monolithic microwave integrated circuit; power amplifiers;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2010.2742
  • Filename
    5395590
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1392434