Pacheco-Peña, VíctorTorres Landívar, VíctorOrazbayev, BakhtiyarBeruete Díaz, MiguelNavarro Cía, MiguelSorolla Ayza, MarioEngheta, Nader2016-07-272016-07-2720140003-6951 (Print)1077-3118 (Electronic)10.1063/1.4903865https://academica-e.unavarra.es/handle/2454/21073The following article appeared in Pacheco-Peña, V., Torres, V., Orazbayev, B., Beruete, M., Sorolla, M., Navarro-Cía, M., & Engheta, N. (2014). Mechanical 144GHz beam steering with all-metallic epsilon-near-zero lens antenna. Applied Physics Letters, 105(24), doi:10.1063/1.4903865, and may be found at http://dx.doi.org/10.1063/1.4903865.An all-metallic steerable beam antenna composed of an ε-near-zero (ENZ) metamaterial lens is experimentally demonstrated at 144 GHz (λ0 = 2.083 mm). The ENZ lens is realized by an array of narrow hollow rectangular waveguides working just near and above the cut-off of the TE10 mode. The lens focal arc on the xz-plane is initially estimated analytically as well as numerically and compared with experimental results demonstrating good agreement. Next, an open-ended waveguide is placed along the lens focal arc to evaluate the ENZ-lens antenna steerability. A gain scan loss below 3 dB is achieved for angles up to plus/minus 15º.application/pdfeng© 2014 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.ENZ metamaterialMetamaterial lensPlanoconcave lensBeam steeringinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess