Browsing by UPNA Author "Sorolla Ayza, Mario"
Now showing items 21-40 of 61
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Gain improvement of dual band antenna based on complementary rectangular split-ring resonator
Ortiz Pérez de Eulate, Noelia
; Falcone Lanas, Francisco Javier 
; Sorolla Ayza, Mario (Hindawi / Wiley, 2012)
Artículo / Artikulua 
A simple and successful dual band patch linear polarized rectangular antenna design is presented. The dual band antenna is designed etching a complementary rectangular split-ring resonator in the patch of a conventional ... -
Gaussian beam propagation versus Huygens method in non-paraxial conditions
Gonzalo García, Ramón ; Turullols, Pedro; Río Bocio, Carlos del ; Sorolla Ayza, Mario (1997)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, we present a study about the difference between Gaussian beam propagation and Huygens method to obtain the radiation pattern in the case of non-paraxial conditions. We fix a way to determine the error in the ... -
Generación del modo HE11 a partir de una guía circular lisa monomodo
Gonzalo García, Ramón ; Río Bocio, Carlos del ; Teniente Vallinas, Jorge ; Sorolla Ayza, Mario (1996)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, we present an original taper design to obtain the HE11 corrugated circular waveguide mode exciting with a pure TE11 monomode smooth circular waveguide mode. The proposed corrugated taper has a longitudinal ... -
Generation of the HE11 mode from monomode smooth circular waveguide
Gonzalo García, Ramón ; Río Bocio, Carlos del ; Sorolla Ayza, Mario (1996)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, we present an original taper design to obtain the HE11 corrugated circular waveguide mode exciting with a pure TE11 monomode smooth circular waveguide mode. The proposed corrugated taper has a longitudinal ... -
Generation of the HE11 mode in rectangular waveguide using gaussian techniques
Teniente Vallinas, Jorge ; Gonzalo García, Ramón ; Sorolla Ayza, Mario ; Río Bocio, Carlos del (IEEE, 1999)
Contribución a congreso / Biltzarrerako ekarpena
A new and efficient design of a rectangular corrugated waveguide mode converter, from TE10 mode in a smooth rectangular monomode waveguide to HE11 mode in a corrugated rectangular waveguide, is proposed. The main idea ... -
High order mode beam waveguide for technological medium power millimeter wave applications
Río Bocio, Carlos del ; Gonzalo García, Ramón ; Marín Pilz, Miguel ; Sorolla Ayza, Mario ; Möbius, Arnold; Thumm, Manfred (1995)
Contribución a congreso / Biltzarrerako ekarpena
The use of medium power millimeter wave CW gyrotrons (10- 30 kW and 30-100 GHz) has several potential applications in advanced materials processing. Since a stochastic field distribution in the applicator is desirable ... -
Left-handed extraordinary optical transmission through a photonic crystal of subwavelength hole arrays
Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Campillo, Igor (Optical Society of America, 2006)
Artículo / Artikulua
Metamaterial structures are artificial materials that show unconventional electromagnetic properties such as photonic band-gap, extraordinary optical transmission and left-handed propagation. Up to now, relations of photonic ... -
Lensing system and Fourier transformation using epsilon-near-zero metamaterials
Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Engheta, Nader (American Physical Society, 2012)
Artículo / Artikulua
Metamaterials and metastructures with effective relative permittivity near zero exhibit unusual wave properties such as uniform phase distributions across such domains. Here we discuss the possibility of using ε-near-zero ... -
Lentes metálicas basadas en el fenómeno de transmisión extraordinaria para conseguir índices de refracción negativos
Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Campillo, Igor (2009)
Contribución a congreso / Biltzarrerako ekarpena
In this communication we report plano-concave and bi-concave metamaterial lenses based on the close stack of subwavelegnth hole arrays. Contrary to what is expected from cut-off holes, an engineered array of holes ... -
Línea de transmisión cuasi-óptica con modos gaussianos de orden superior para sistemas basados en gyrotrones tecnológicos para aplicaciones cerámicas
Río Bocio, Carlos del ; Gonzalo García, Ramón ; Möbius, Arnold; Sorolla Ayza, Mario ; Thumm, Manfred (1997)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, a description of a new compact microwave oven system based on a tecnological gyrotron for material processing applications is presented. The whole system has been designed by the Institute of Applied Physics ... -
Low profile THz periodic leaky-wave antenna
Beaskoetxea Gartzia, Unai ; Beruete Díaz, Miguel ; Rodríguez Ulibarri, Pablo ; Etayo Salinas, David ; Sorolla Ayza, Mario ; Navarro Cía, Miguel ; Zehar, Mokhtar; Blary, Karine; Chahadih, Abdallah; Han, Xiang-Lei; Akalin, Tahsin (IEEE, 2014)
Contribución a congreso / Biltzarrerako ekarpena
In this work, a 0.566THz flat leaky-wave antenna, consisting of a central λ0/2 slot surrounded by straight parallel wedge corrugations, is numerically and experimentally analyzed. Simulations show a moderately high gain ... -
Measurements of a new gaussian profile corrugated horn antenna for millimeter wave applications
Gonzalo García, Ramón ; Martí Canales, J.; Teniente Vallinas, Jorge ; Río Bocio, Carlos del ; Sorolla Ayza, Mario (IEEE, 1998)
Contribución a congreso / Biltzarrerako ekarpena
The measurements results of a new design of corrugated horn antennas [1, 2, 3] following the gaussian expansion are presented in this paper. The performance of two corrugated horn antennas of this kind was verified in ... -
Mechanical 144GHz beam steering with all-metallic epsilon-near-zero lens antenna
Pacheco-Peña, Víctor ; Torres Landívar, Víctor ; Orazbayev, Bakhtiyar ; Beruete Díaz, Miguel ; Navarro Cía, Miguel ; Sorolla Ayza, Mario ; Engheta, Nader (AIP Publishing, 2014)
Artículo / Artikulua
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 ... -
Mid-infrared plasmonic inductors: enhancing inductance with meandering lines
Torres Landívar, Víctor; Ortuño Molinero, Rubén ; Rodríguez Ulibarri, Pablo ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Griol, Amadeu; Martínez, Alejandro; Navarro Cía, Miguel (Nature Publishing Group, 2014)
Artículo / Artikulua
We present a mid-infrared inductor that when applied to an extraordinary transmission hole array produces a strong redshift of the resonant peak accompanied by an unprecedented enlargement of the operation bandwidth. The ... -
Mid-infrared spectroscopy (MIR) for simultaneous determination of fat and protein content in meat of several animal species
Lozano Saiz, María; Rodríguez Ulibarri, Pablo ; Echeverría Morrás, Jesús ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Beriain Apesteguía, María José (Springer, 2017)
Artículo / Artikulua
The aim of this research was to study the application of MIR spectroscopy as an alternative to conventional methods to determine fat and protein content. Samples of the main species used to produce meat products were ... -
Millimeter-wave extraordinary transmission: connection to metamaterials and technological applications
Beruete Díaz, Miguel (2006)
Tesis doctoral / Doktoretza tesia
The phenomenon of Enhanced Transmission also happens in the millimeter wave range, as it happened in optical frequencies. This experimental fact shows that this is a phenomenon mostly linked to the periodic structure regardless ... -
Millimeter-wave phase resonances in compound reflection gratings with subwavelength grooves
Beruete Díaz, Miguel ; Navarro Cía, Miguel ; Skigin, Diana C.; Sorolla Ayza, Mario (Optical Society of America, 2010)
Artículo / Artikulua
Experimental evidence of phase resonances in a dual-period reflection structure comprising three subwavelength grooves in each period is provided in the millimeter-wave regime. We have analyzed and measured the response ... -
Negative refraction in a prism made of stacked subwavelength hole arrays
Navarro Cía, Miguel ; Beruete Díaz, Miguel ; Sorolla Ayza, Mario ; Campillo, Igor (Optical Society of America, 2008)
Artículo / Artikulua
Metamaterial structures are artificial materials that show unconventional electromagnetic properties such as negative refraction index, perfect lenses, and invisibility. However, losses are one of the big challenges to be ... -
Negative refraction through an extraordinary transmission left-handed metamaterial slab
Beruete Díaz, Miguel ; Navarro Cía, Miguel ; Sorolla Ayza, Mario ; Campillo, Igor (American Physical Society, 2009)
Artículo / Artikulua
In this work we present numerical and experimental results of negative refraction through a negative index metamaterial based on miniaturized extraordinary transmission stacked subwavelength hole arrays, also known as ... -
New approach to the design of corrugated horn antennas
Gonzalo García, Ramón ; Teniente Vallinas, Jorge ; Río Bocio, Carlos del ; Sorolla Ayza, Mario (1997)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, we present two new corrugated horn antenna designs in circular waveguide. The first one is a converter horn antenna from monomode circular waveguide TE11 to corrugated waveguide HE11 mode in a very efficient ...
