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

V. Pacheco-Peña, V. Torres, B. Orazbayev, M. Beruete, Miguel Navarro-Cia, N. Engheta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publication2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2014
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages235-237
Number of pages3
ISBN (Print)9781479934522
DOIs
Publication statusPublished - 5 Nov 2014
Event2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2014 - Copenhagen, Denmark
Duration: 25 Aug 201428 Aug 2014

Conference

Conference2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, METAMATERIALS 2014
Country/TerritoryDenmark
CityCopenhagen
Period25/08/1428/08/14

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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