• DocumentCode
    804499
  • Title

    Traveling wave lobe locations

  • Author

    Knott, Eugene F.

  • Author_Institution
    Boeing Aerosp. & Electron. Co., Seattle, WA, USA
  • Volume
    38
  • Issue
    11
  • fYear
    1990
  • fDate
    11/1/1990 12:00:00 AM
  • Firstpage
    1859
  • Lastpage
    1862
  • Abstract
    A simple and reasonably accurate formula for the angular locations of traveling wave lobes has been available for many years, but the formula holds only for surface waves that travel at the speed of light. It is shown how the formula may be modified to account for propagation velocities less than the speed of light. It is shown that when the equation derived by the author is used to estimate a starting value for cosQ in the Newton-Raphson method, the solution usually requires no more than three iterations for an accuracy of 10-6 in the solution for Q
  • Keywords
    antenna radiation patterns; Newton-Raphson method; angular locations; antenna radiation patterns; light speed; propagation velocities; surface waves; traveling wave lobes; Aerospace electronics; Coatings; Conductors; Electromagnetic propagation; Electromagnetic scattering; Equations; Light scattering; Optical propagation; Shape; Surface waves;
  • fLanguage
    English
  • Journal_Title
    Antennas and Propagation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-926X
  • Type

    jour

  • DOI
    10.1109/8.102751
  • Filename
    102751
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=804499