• DocumentCode
    145863
  • Title

    Focusing millimetre waves by means of a permittivity-near zero narrow-waveguide lens

  • Author

    Pacheco-Pena, V. ; Torres, V. ; Orazbayev, B. ; Beruete, M. ; Navarro-Cia, M. ; Engheta, Nader

  • Author_Institution
    TERALAB (MmW - THz - IR & Plasmonics Lab.), Univ. Publica de Navarra, Pamplona, Spain
  • fYear
    2014
  • fDate
    25-28 Aug. 2014
  • Firstpage
    235
  • Lastpage
    237
  • Abstract
    An epsilon-near zero (ENZ) plano-concave lens is designed, numerically studied and experimentally demonstrated at millimeter-waves. The metallic lens is synthesized by an array of stacked narrow hollow rectangular waveguides working near cutoff emulating an ENZ medium. At the working frequency (f0 = 144 GHz, λ0 = 2.08 mm) the focusing properties of the lens demonstrate an experimental transmission power enhancement of 15.9 dB with a good impedance matching with free space.
  • Keywords
    lenses; rectangular waveguides; epsilon near zero plano concave lens; impedance matching; metallic lens; millimetre waves; permittivity near zero narrow waveguide lens; stacked narrow hollow rectangular waveguides; Electromagnetics; Hollow waveguides; Lenses; Metamaterials; Optical waveguides;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2014 8th International Congress on
  • Conference_Location
    Lyngby
  • Print_ISBN
    978-1-4799-3450-8
  • Type

    conf

  • DOI
    10.1109/MetaMaterials.2014.6948658
  • Filename
    6948658
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=145863