Title :
ε-near-zero Graded Index structure as a bi-concave metallic lens using stacked rectangular near cut-off waveguides
Author :
Pacheco-Pena, V. ; Torres, V. ; Navarro-Cia, M. ; Beruete, M. ; Sorolla, Mario ; Engheta, Nader
Author_Institution :
Dept. Electr. & Electron. Eng., Univ. Publica de Navarra, Pamplona, Spain
Abstract :
In this paper a slab of stacked near cut-off rectangular waveguides emulating an ε-near-zero (ENZ) artificial material is designed to behave as a bi-concave symmetric lens. First, a rectangular narrow hollow waveguide is simulated in order to show how such device can be used to mimic an ENZ medium. Afterwards, a Graded Index ENZ structure emulating a symmetric 7λ0 input and output focal length converging bi-concave lens is designed working at 100 GHz.
Keywords :
electromagnetic metamaterials; lenses; rectangular waveguides; ε-near-zero graded index structure; ENZ medium; ENZ)artificial material; biconcave metallic lens; biconcave symmetric lens; focal length; frequency 100 GHz; graded index ENZ structure; rectangular narrow hollow waveguide; stacked rectangular near cut-off waveguides; Hollow waveguides; Indexes; Lenses; Metamaterials; Rectangular waveguides; Simulation; Slabs; ENZ artificial materials; Graded index lens; metallic lens;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
