• DocumentCode
    885815
  • Title

    Theory and Tables of Optimum Symmetrical TEM-Mode Coupled-Transmission-Line Directional Couplers

  • Author

    Cristal, E.G. ; Young, L.

  • Volume
    13
  • Issue
    5
  • fYear
    1965
  • fDate
    9/1/1965 12:00:00 AM
  • Firstpage
    544
  • Lastpage
    558
  • Abstract
    New equal-ripple polynomials were determined and applied to the synthesis of symmetrical TEM-mode coupled-transmission-line directional couplers (using exact methods). Tables of designs for symmetrical couplers of three, five, seven, and nine sections having mean couplings of -3.01, -6, -8.34, -10, and -20 dB, and having several equal-ripple tolerances in the coupling band are presented. Symmetrical maximally-flat directional-coupler designs having three, five, seven, and nine sections are also presented to complete the tables.
  • Keywords
    Bandwidth; Chebyshev approximation; Design methodology; Directional couplers; Frequency; Polynomials; Signal generators;
  • fLanguage
    English
  • Journal_Title
    Microwave Theory and Techniques, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9480
  • Type

    jour

  • DOI
    10.1109/TMTT.1965.1126050
  • Filename
    1126050
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=885815