Torres Landívar, VíctorOrazbayev, BakhtiyarPacheco-Peña, VíctorTeniente Vallinas, JorgeBeruete Díaz, MiguelNavarro Cía, MiguelSorolla Ayza, Mario2020-09-162020-09-162015V. Torres et al., 'Experimental Demonstration of a Millimeter-Wave Metallic ENZ Lens Based on the Energy Squeezing Principle,' in IEEE Transactions on Antennas and Propagation, vol. 63, no. 1, pp. 231-239, Jan. 2015, doi: 10.1109/TAP.2014.2368112.1558-222110.1109/TAP.2014.2368112https://academica-e.unavarra.es/handle/2454/38135The performance of an epsilon-near zero (ENZ) plano-concave lens is experimentally demonstrated and verified at the D-band of the millimeter-waves. The lens is comprised of an array of narrow metallic waveguides near cut-off frequency, which effectively behaves as an epsilon-near-zero medium at 144 GHz. A good matching with free space is achieved by exploiting the phenomenon of energy squeezing and a clear focus with a transmission enhancement of 15.9 dB is measured. The lens shows good radiation properties with a directivity of 17.6 dBi and low cross-polar components of -34 dB. All results are supported by numerical simulations.10 p.application/pdfeng© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other work.Epsilon-near-zeroEnergy squeezingMetallic lensesMetamaterialsMillimeter wave devicesinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess