• DocumentCode
    872180
  • Title

    A 3-dB Directional Coupler for Microwave Integrated Circuits

  • Author

    Morris, James E.

  • Volume
    3
  • Issue
    2
  • fYear
    1968
  • fDate
    6/1/1968 12:00:00 AM
  • Firstpage
    138
  • Lastpage
    139
  • Abstract
    A procedure for designing quarter-wavelength 3-dB directional couplers is described which utilizes a perturbation technique to reduce the number of experimental models needed during the development. Limitations caused by unequal odd and even mode phase velocities and junction parasitics are discussed.The use of thin-film conductors on quartz and glazed ceramic gives a coupling accuracy better than 3.0 /spl plusmn/ 0.1 dB and an isolation greater than 32 dB with worst-case tolerances.
  • Keywords
    Coupling circuits; Microwave circuits; Ceramics; Conductors; Coupling circuits; Directional couplers; Frequency; Geometry; Impedance measurement; Integrated circuit measurements; Microwave integrated circuits; Pulse measurements;
  • fLanguage
    English
  • Journal_Title
    Solid-State Circuits, IEEE Journal of
  • Publisher
    ieee
  • ISSN
    0018-9200
  • Type

    jour

  • DOI
    10.1109/JSSC.1968.1049857
  • Filename
    1049857
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=872180