• DocumentCode
    2703665
  • Title

    Photonic true time delay beamformer demonstrator for a radio astronomical array antenna

  • Author

    Van Dijk, Raymond ; Bregman, Jaap D. ; Roodnat, Anton ; Van Vliet, Frank E.

  • Author_Institution
    TNO Phys. & Electron. Lab., The Hague, Netherlands
  • fYear
    2000
  • fDate
    2000
  • Firstpage
    78
  • Lastpage
    80
  • Abstract
    The design and characterisation results of a prototype beamformer for receive application are presented. The four channel system uses switched fibre delay lines and signals are combined optically before addition on a single detector. An SFDR of 101 dB·Hz2/3 has been measured, which is good, given the use of a low power directly modulated laser diode
  • Keywords
    antenna phased arrays; antenna radiation patterns; array signal processing; microwave antenna arrays; microwave photonics; optical delay lines; optical modulation; radioastronomy; SFDR; four channel system; low power directly modulated laser diode; photonic true time delay beamformer; radio astronomical array antenna; switched fibre delay lines; Antenna arrays; Bandwidth; Delay effects; Optical beams; Optical modulation; Optical noise; Optical receivers; Optical signal processing; Phased arrays; Semiconductor device noise;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Photonics, 2000. MWP 2000. International Topical Meeting on
  • Conference_Location
    Oxford
  • Print_ISBN
    0-7803-6455-4
  • Type

    conf

  • DOI
    10.1109/MWP.2000.889791
  • Filename
    889791
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2703665