Zoned near-zero refractive index fishnet lens antenna: Steering millimeter waves

doi:10.1063/1.4869436

Title: Zoned near-zero refractive index fishnet lens antenna: Steering millimeter waves

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Abstract

A zoned fishnet metamaterial lens is designed, fabricated, and experimentally demonstrated at millimeter wavelengths to work as a negative near-zero refractive index lens suitable for compact lens antenna configurations. At the design frequency f = 56.7 GHz (λ{sub 0} = 5.29 mm), the zoned fishnet metamaterial lens, designed to have a focal length FL = 9λ{sub 0}, exhibits a refractive index n = −0.25. The focusing performance of the diffractive optical element is briefly compared with that of a non-zoned fishnet metamaterial lens and an isotropic homogeneous zoned lens made of a material with the same refractive index. Experimental and numerically-computed radiation diagrams of the fabricated zoned lens are presented and compared in detail with that of a simulated non-zoned lens. Simulation and experimental results are in good agreement, demonstrating an enhancement generated by the zoned lens of 10.7 dB, corresponding to a gain of 12.26 dB. Moreover, beam steering capability of the structure by shifting the feeder on the xz-plane is demonstrated.

Authors:

Pacheco-Peña, V., E-mail: victor.pacheco@unavarra.es; Orazbayev, B., E-mail: b.orazbayev@unavarra.es; Beaskoetxea, U., E-mail: unai.beaskoetxea@unavarra.es; Beruete, M., E-mail: miguel.beruete@unavarra.es ^[1]; Navarro-Cía, M., E-mail: m.navarro@imperial.ac.uk ^[2]; Centre for Plasmonics and Metamaterials, Imperial College London, London SW7 2AZ ^[3]; Centre for Terahertz Science and Engineering, Imperial College London, London SW7 2AZ ^[3]

TERALAB (MmW—THz—IR and Plasmonics Laboratory), Universidad Pública de Navarra, Campus Arrosadía, 31006 Pamplona (Spain)
Optical and Semiconductor Devices Group, Department of Electrical and Electronic Engineering, Imperial College London, London SW7 2BT (United Kingdom)
(United Kingdom)

Publication Date:: Fri Mar 28 00:00:00 EDT 2014

OSTI Identifier:: 22271317

Resource Type:: Journal Article

Journal Name:: Journal of Applied Physics

Additional Journal Information:: Journal Volume: 115; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANTENNAS; COMPARATIVE EVALUATIONS; COMPOSITE MATERIALS; COMPUTERIZED SIMULATION; CONFIGURATION; DESIGN; GAIN; LENSES; REFRACTIVE INDEX

Citation Formats


                    Pacheco-Peña, V., E-mail: victor.pacheco@unavarra.es, Orazbayev, B., E-mail: b.orazbayev@unavarra.es, Beaskoetxea, U., E-mail: unai.beaskoetxea@unavarra.es, Beruete, M., E-mail: miguel.beruete@unavarra.es, Navarro-Cía, M., E-mail: m.navarro@imperial.ac.uk, Centre for Plasmonics and Metamaterials, Imperial College London, London SW7 2AZ, and Centre for Terahertz Science and Engineering, Imperial College London, London SW7 2AZ. Zoned near-zero refractive index fishnet lens antenna: Steering millimeter waves.  United States: N. p., 2014. 
        Web.  doi:10.1063/1.4869436.

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                    Pacheco-Peña, V., E-mail: victor.pacheco@unavarra.es, Orazbayev, B., E-mail: b.orazbayev@unavarra.es, Beaskoetxea, U., E-mail: unai.beaskoetxea@unavarra.es, Beruete, M., E-mail: miguel.beruete@unavarra.es, Navarro-Cía, M., E-mail: m.navarro@imperial.ac.uk, Centre for Plasmonics and Metamaterials, Imperial College London, London SW7 2AZ, & Centre for Terahertz Science and Engineering, Imperial College London, London SW7 2AZ. Zoned near-zero refractive index fishnet lens antenna: Steering millimeter waves.  United States.  https://doi.org/10.1063/1.4869436

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                    Pacheco-Peña, V., E-mail: victor.pacheco@unavarra.es, Orazbayev, B., E-mail: b.orazbayev@unavarra.es, Beaskoetxea, U., E-mail: unai.beaskoetxea@unavarra.es, Beruete, M., E-mail: miguel.beruete@unavarra.es, Navarro-Cía, M., E-mail: m.navarro@imperial.ac.uk, Centre for Plasmonics and Metamaterials, Imperial College London, London SW7 2AZ, and Centre for Terahertz Science and Engineering, Imperial College London, London SW7 2AZ. 2014.  
        "Zoned near-zero refractive index fishnet lens antenna: Steering millimeter waves".  United States.  https://doi.org/10.1063/1.4869436.

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@article{osti_22271317,

  title        = {Zoned near-zero refractive index fishnet lens antenna: Steering millimeter waves},

  author       = {Pacheco-Peña, V., E-mail: victor.pacheco@unavarra.es and Orazbayev, B., E-mail: b.orazbayev@unavarra.es and Beaskoetxea, U., E-mail: unai.beaskoetxea@unavarra.es and Beruete, M., E-mail: miguel.beruete@unavarra.es and Navarro-Cía, M., E-mail: m.navarro@imperial.ac.uk and Centre for Plasmonics and Metamaterials, Imperial College London, London SW7 2AZ and Centre for Terahertz Science and Engineering, Imperial College London, London SW7 2AZ},

  abstractNote = {A zoned fishnet metamaterial lens is designed, fabricated, and experimentally demonstrated at millimeter wavelengths to work as a negative near-zero refractive index lens suitable for compact lens antenna configurations. At the design frequency f = 56.7 GHz (λ{sub 0} = 5.29 mm), the zoned fishnet metamaterial lens, designed to have a focal length FL = 9λ{sub 0}, exhibits a refractive index n = −0.25. The focusing performance of the diffractive optical element is briefly compared with that of a non-zoned fishnet metamaterial lens and an isotropic homogeneous zoned lens made of a material with the same refractive index. Experimental and numerically-computed radiation diagrams of the fabricated zoned lens are presented and compared in detail with that of a simulated non-zoned lens. Simulation and experimental results are in good agreement, demonstrating an enhancement generated by the zoned lens of 10.7 dB, corresponding to a gain of 12.26 dB. Moreover, beam steering capability of the structure by shifting the feeder on the xz-plane is demonstrated.},

  doi          = {10.1063/1.4869436},

  url          = {https://www.osti.gov/biblio/22271317},
  journal      = {Journal of Applied Physics},

  issn         = {0021-8979},

  number       = 12,

  volume       = 115,

  place        = {United States},

  year         = {Fri Mar 28 00:00:00 EDT 2014},

  month        = {Fri Mar 28 00:00:00 EDT 2014}

}

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