Experimental demonstration of a millimeter-wave metallic ENZ lens based on the energy squeezing principle

Victor Torres; Bakhtiyar Orazbayev; Victor Pacheco-Pena; Jorge Teniente; Miguel Beruete; Miguel Navarro-Cia; Mario Sorolla Ayza; Nader Engheta

doi:10.1109/TAP.2014.2368112

Experimental demonstration of a millimeter-wave metallic ENZ lens based on the energy squeezing principle

Victor Torres, Bakhtiyar Orazbayev, Victor Pacheco-Pena, Jorge Teniente, Miguel Beruete, Miguel Navarro-Cia, Mario Sorolla Ayza, Nader Engheta

Engineering and Physical Sciences

Research output: Contribution to journal › Article › peer-review

33 Citations (Scopus)

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Abstract

The 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.

Original language	English
Article number	6949057
Pages (from-to)	231-239
Number of pages	9
Journal	IEEE Transactions on Antennas and Propagation
Volume	63
Issue number	1
DOIs	https://doi.org/10.1109/TAP.2014.2368112
Publication status	Published - 1 Jan 2015

Keywords

energy squeezing
Epsilon-near-zero
metallic lenses
metamaterials
Millimeter wave devices

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

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10.1109/TAP.2014.2368112

Torres_et_al_Experimental_Demonstration_Antennas_Propagation_2015
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Cite this

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title = "Experimental demonstration of a millimeter-wave metallic ENZ lens based on the energy squeezing principle",

abstract = "The 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.",

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AU - Torres, Victor

AU - Orazbayev, Bakhtiyar

AU - Pacheco-Pena, Victor

AU - Teniente, Jorge

AU - Beruete, Miguel

AU - Navarro-Cia, Miguel

AU - Ayza, Mario Sorolla

AU - Engheta, Nader

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AB - The 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.

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Experimental demonstration of a millimeter-wave metallic ENZ lens based on the energy squeezing principle

Abstract

Keywords

ASJC Scopus subject areas

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