• DocumentCode
    1035019
  • Title

    Asymptotic expansion for spherical mode phase with application to near-field measurements

  • Author

    Thal, Herbert L., Jr.

  • Author_Institution
    General Electric, Philadelphia, PA, USA
  • Volume
    34
  • Issue
    4
  • fYear
    1986
  • fDate
    4/1/1986 12:00:00 AM
  • Firstpage
    595
  • Lastpage
    597
  • Abstract
    The exact-circuit representation of spherical modes allows the derivation of a convenient asymptotic relationship for the phase difference between a plane wave and a spherical wave as a function of the radial position and spherical mode index. One application of this asymptotic form is to allow the effects of range uncertainties on patterns measured in a near-field antenna range to be related simply to the more familiar finite range effects in a direct far-field measurement.
  • Keywords
    Antenna measurements; Spherical wave functions; Antenna measurements; Circuits; Cutoff frequency; Filters; Impedance; Measurement uncertainty; Optical reflection; Phase measurement; Position measurement; Tellurium;
  • fLanguage
    English
  • Journal_Title
    Antennas and Propagation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-926X
  • Type

    jour

  • DOI
    10.1109/TAP.1986.1143863
  • Filename
    1143863
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1035019