• DocumentCode
    1060931
  • Title

    Negative Refraction Without Negative Index

  • Author

    Hansen, Robert C.

  • Author_Institution
    R. C. Hansen, Inc., Tarzan
  • Volume
    56
  • Issue
    2
  • fYear
    2008
  • Firstpage
    402
  • Lastpage
    404
  • Abstract
    Refraction of a microwave plane wave by a wedge with exact characterization of and is evaluated by a ray approach. Snell´s Law is used for the lossless wedge, while exact formulations are used for the propagation constants and angle in the lossy wedge. The heavily lossy wedge produces negative refraction. Data are given on the loss factor that allows Snell refraction to be exactly reversed by lossy refraction, and the internal angle in the lossy wedge.
  • Keywords
    dielectric losses; electromagnetic wave refraction; microwave propagation; Snell law; dielectric losses; lossy wedge refraction; microwave plane wave refraction; negative index; negative refraction; Attenuation; Brain modeling; Dielectric constant; Dielectric losses; Glass; Gratings; Image analysis; Lattices; Propagation constant; Propagation losses; Lossy wedge; Snell refraction; negative refraction;
  • fLanguage
    English
  • Journal_Title
    Antennas and Propagation, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-926X
  • Type

    jour

  • DOI
    10.1109/TAP.2007.915440
  • Filename
    4447349