• DocumentCode
    1243893
  • Title

    An Adaptive Electronic Circulator for Use in Telephones

  • Author

    Lodge, R.P. ; Sewell, J.I.

  • Author_Institution
    Marconi Communication Systems, Chelmsford, England
  • Volume
    23
  • Issue
    7
  • fYear
    1975
  • fDate
    7/1/1975 12:00:00 AM
  • Firstpage
    728
  • Lastpage
    731
  • Abstract
    A design for an adaptive three-port electronic circulator is presented. The circuit has particular use in telephone work and this model can provide isolation when the terminating load varies over the range 200 \\Omega - 1 k\\Omega . The whole circuit is realizable in microelectronic form.
  • Keywords
    Adaptive methods; Circulators; Telephone receivers/transmitters; Circuits; Electrical engineering; FETs; Feedback; Impedance; Phase change materials; Repeaters; Source coding; Telephony; Voltage;
  • fLanguage
    English
  • Journal_Title
    Communications, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0090-6778
  • Type

    jour

  • DOI
    10.1109/TCOM.1975.1092881
  • Filename
    1092881