Browsing by UPNA Author "Navarro Cía, Miguel"
Now showing items 1-20 of 59
-
3D-printed 96 GHz bull’s-eye antenna with off-axis beaming
Beaskoetxea Gartzia, Unai
; Maci, Stefano; Navarro Cía, Miguel ; Beruete Díaz, Miguel (IEEE, 2017)
Artículo / Artikulua 
Reducing the profile, footprint and weight of antennas embarked on aircrafts, drones or satellites has been a long pursued objective. Here we tackle this issue by developing a millimeter-wave 96 GHz elliptical Bull’s-Eye ... -
77-GHz high-gain bull’s-eye antenna with sinusoidal profile
Beaskoetxea Gartzia, Unai ; Pacheco-Peña, Víctor ; Orazbayev, Bakhtiyar ; Akalin, Tahsin; Maci, Stefano; Navarro Cía, Miguel (IEEE, 2015)
Artículo / Artikulua
A high-gain Bull’s-Eye leaky-wave horn antenna working at 77 GHz with sinusoidal profile has been designed, fabricated, and experimentally measured. The influence of the number of periods on the gain and beamwidth is ... -
Accurate circuit modeling of fishnet structures for negative-index-medium applications
Torres Landívar, Víctor; Mesa, Francisco; Navarro Cía, Miguel ; Rodríguez Berral, Raúl; Beruete Díaz, Miguel ; Medina, Francisco (IEEE, 2016)
Artículo / Artikulua
Metallic plates with a two-dimensional (2D) periodic distribution of sub-wavelength apertures are known to exhibit extraordinary transmission of electromagnetic waves. Stacking two or more of such plates gives place to the ... -
All-metallic ε-near-zero (ENZ) lens based on ultra-narrow hollow rectangular waveguides: experimental results
Orazbayev, Bakhtiyar ; Torres Landívar, Víctor ; Pacheco-Peña, Víctor ; Falcone Lanas, Francisco Javier ; Teniente Vallinas, Jorge ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Navarro Cía, Miguel ; Engheta, Nader (IEEE, 2014)
Contribución a congreso / Biltzarrerako ekarpena
Here we perform numerical and experimental investigation of plano-concave all-metallic ε-near-zero (ENZ) lens with operational frequency f = 144 GHz. The ENZ lens is achieved by stacking an array of narrow hollow rectangular ... -
Analysis of surface-plasmon-like modes under an engineering perspective
Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario (2011)
Contribución a congreso / Biltzarrerako ekarpena
In this communication we show how one can exploit equivalent circuits to analyze surface-plasmon-like modes (slit and hole arrays, Sievenpiper mushrooms and coaxial hole arrays) and to propose new designs with outstanding ... -
Annular apertures in metallic screens as extraordinary transmission and frequency selective surface structures
Rodríguez Ulibarri, Pablo ; Navarro Cía, Miguel ; Rodríguez Berral, Raúl; Mesa, Francisco; Medina, Francisco; Beruete Díaz, Miguel (IEEE, 2017)
Artículo / Artikulua
A 2-D periodic array of annular apertures (or ring slots) is studied using an accurate circuit model. The model accounts for distributed and dynamic effects associated with the excitation of high-order modes operating above ... -
The beauty of anisotropy in extraordinary transmission fishnet metamaterials
Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario (2011)
Contribución a congreso / Biltzarrerako ekarpena
In this work, we explore both numerically and experimentally, the possibility to obtain positive and negative refraction regimes that depend on the wave polarization, exploiting the strong anisotropy of extraordinary ... -
Broadband frequency and angular response of a sinusoidal bull’s eye antenna
Beaskoetxea Gartzia, Unai ; Navarro Cía, Miguel ; Beruete Díaz, Miguel (IOP Publishing, 2016)
Artículo / Artikulua
A thorough experimental study of the frequency and beaming angle response of a metallic leaky-wave bull’s eye antenna working at 77 GHz with a sinusoidally corrugated profile is presented. The beam scanning property of ... -
Broadband spoof plasmons and subwavelength electromagnetic energy confinement on ultrathin metafilms
Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Agrafiotis, Spyros; Falcone Lanas, Francisco Javier ; Sorolla Ayza, Mario ; Maier, Stefan A. (Optical Society of America, 2009)
Artículo / Artikulua
A complementary split ring resonator (CSRR)-based metallic layer is proposed as a route to mimic surface plasmon polaritons. A numerical analysis of the textured surface is carried out and compared to previous prominent ... -
Circuit approach to the minimal configuration of terahertz anomalous extraordinary transmission
Beruete Díaz, Miguel ; Navarro Cía, Miguel ; Kuznetsov, Sergei A.; Sorolla Ayza, Mario (American Institute of Physics, 2011)
Artículo / Artikulua
In this letter we present an in-depth circuit analysis of anomalous extraordinary transmission ET through subwavelength slit and hole arrrays loaded by a dielectric slab. We show the key role played by the thickness of the ... -
Compact dual-band terahertz quarter-wave plate metasurface
Torres Landívar, Víctor; Etayo Salinas, David ; Ortuño Molinero, Rubén ; Navarro Cía, Miguel ; Beruete Díaz, Miguel (IEEE, 2014)
Artículo / Artikulua
A dual-band quarter-wave plate based on a modified extraordinary transmission hole array is numerically analyzed and experimentally demonstrated at terahertz frequencies. To control independently orthogonal polarizations, ... -
Comportamiento de propagacion electromagnetica en el apilamiento de agujeros sublambda y agujeros propagantes
Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Falcone Lanas, Francisco Javier ; Campillo, Igor; Sorolla Ayza, Mario (2009)
Contribución a congreso / Biltzarrerako ekarpena
In this work, we provide more insight on the physics underlying the transmission through subwavelength hole arrays metaprism by comparing it with propagating hole arrays prism. We show the critical role that the size ... -
Converging biconcave metallic lens by double-negative extraordinary transmission metamaterial
Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Campillo, Igor (AIP Publishing, 2009)
Artículo / Artikulua
In this letter we present simulation and experimental results of a left-handed converging biconcave metallic lens made of stacked subwavelength hole arrays SSHAs working in the millimeter wave range with additional ... -
Description of bow-tie nanoantennas excited by localized emitters using conformal transformation
Pacheco-Peña, Víctor ; Beruete Díaz, Miguel ; Fernández Domínguez, Antonio I.; Luo, Yu; Navarro Cía, Miguel (American Chemical Society, 2016)
Artículo / Artikulua
The unprecedented advance experienced by nano- fabrication techniques and plasmonics research over the past few years has made possible the realization of nanophotonic systems entering into the so-called strong coupling ... -
Diffuse-scattering-informed geometric channel modeling for THz wireless communications systems
Azpilicueta Fernández de las Heras, Leyre ; Schultze, Alper; Celaya Echarri, Mikel; Rodríguez Corbo, Fidel Alejandro; Constantinou, Costas; Shubair, Raed M.; Falcone Lanas, Francisco ; Navarro Cía, Miguel (IEEE, 2023)
Artículo / Artikulua
Surpassing 100 Gbps data throughput is a key objective and an active area of research for sixth-generation (6G) wireless networks that can only be met by exploiting the TeraHertz (THz) frequency band (0.3 - 10 THz). THz ... -
Dipolar resonances in conductive carbon micro-fibers probed by near-field terahertz spectroscopy
Khromova, Irina ; Navarro Cía, Miguel ; Brener, I.; Reno, J. L.; Ponomarev, A.; Mitrofanov, Oleg (AIP Publishing, 2015)
Artículo / Artikulua
We observe dipole resonances in thin conductive carbon micro-fibers by detecting an enhanced electric field in the near-field of a single fiber at terahertz (THz) frequencies. Time-domain analysis of the electric field ... -
Electroinductive waves role in left-handed stacked complementary split rings resonators
Beruete Díaz, Miguel ; Aznabet, Mariem; Navarro Cía, Miguel ; El Mrabet, O.; Falcone Lanas, Francisco Javier ; Aknin, N.; Essaaidi, M.; Sorolla Ayza, Mario (Optical Society of America, 2009)
Artículo / Artikulua
In this letter it is presented a Left-Handed Metamaterial design route based upon stacked arrays of screens made of complementary split rings resonators under normal incidence in the microwave regime. Computation of ... -
Electromagnetic response of extraordinary transmission plates inspired on Babinet’s principle
Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario (InTech, 2011)
Capítulo de libro / Liburuen kapitulua
This chapter is devoted to polarization effects arisen from perforated metallic plates exhibiting extraordinary transmission (ET). Setting aside the state-of-the-art of perforated metallic plates, we show that by applying ... -
Epsilon-near-zero metalenses operating in the visible
Pacheco-Peña, Víctor ; Navarro Cía, Miguel ; Beruete Díaz, Miguel (Elsevier, 2016)
Artículo / Artikulua
Several converging lenses working in the permittivity near to zero (ENZ) regime at optical frequencies are designed using an array of metal-dielectric-metal plasmonic waveguides. These plasmonic waveguides show a dispersive ... -
Experimental demonstration of a millimeter-wave metallic ENZ lens based on the energy squeezing principle
Torres Landívar, Víctor; Orazbayev, Bakhtiyar ; Pacheco-Peña, Víctor ; Teniente Vallinas, Jorge ; Beruete Díaz, Miguel ; Navarro Cía, Miguel ; Sorolla Ayza, Mario (IEEE, 2015)
Artículo / Artikulua
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 ...
