• DocumentCode
    1506220
  • Title

    A novel wide-band tunable RF phase shifter using a variable optical directional coupler

  • Author

    Ghorbani, K. ; Mitchell, A. ; Waterhouse, R.B. ; Austin, M.W.

  • Author_Institution
    Dept. of Commun. & Electron. Eng., R. Melbourne Inst. of Technol., Vic., Australia
  • Volume
    47
  • Issue
    5
  • fYear
    1999
  • fDate
    5/1/1999 12:00:00 AM
  • Firstpage
    645
  • Lastpage
    648
  • Abstract
    We present a novel RF phase-shifter design with a usable bandwidth of 80:1. The design is verified through demonstration of a proof of concept device, consisting of a readily available voltage variable optical coupler fabricated from LiNbO3, combined with an fiber-optic delay line. The design is analyzed theoretically and measurement of the device confirms the predicted range of operation. Methods of extension of this range of operation are discussed
  • Keywords
    antenna accessories; antenna phased arrays; beam steering; electro-optical devices; optical delay lines; optical directional couplers; optical feedback; optical phase shifters; optical tuning; LiNbO3; LiNbO3 coupler; optical fiber delay line; variable optical directional coupler; wideband tunable RF phase shifter; Bandwidth; Optical coupling; Optical design; Optical devices; Optical fiber couplers; Optical fiber devices; Phase shifters; Radio frequency; Voltage; Wideband;
  • fLanguage
    English
  • Journal_Title
    Microwave Theory and Techniques, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9480
  • Type

    jour

  • DOI
    10.1109/22.763169
  • Filename
    763169
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1506220