Listar Dpto. Ingeniería Eléctrica y Electrónica - Ingeniaritza Elektriko eta Elektronikoa Saila por título
Mostrando ítems 347-366 de 648
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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 ... -
Low-power class-AB CMOS voltage feedback current operational amplifier with tunable gain and bandwidth
Esparza Alfaro, Fermín; Pennisi, Salvatore; Palumbo, Gaetano; López Martín, Antonio (IEEE, 2014)
Artículo / Artikulua
A CMOS class AB variable gain Voltage Feedback Current Operational Amplifier (VFCOA) is presented. The implementation is based on class AB second generation current conveyors and exploits an electronically tunable ... -
Luminescence-based optical fiber oxygen sensors fabricated by means of layer-by-layer nano-assembly
Acha Morrás, Nerea de (2018)
Tesis doctoral / Doktoretza tesia
Over the last decades, luminescence quenching has been established as a widespread technique for gaseous oxygen monitoring in a broad range of applications. Thus, considerable effort has been made to manufacture luminescent ... -
Luminescence-based optical sensors fabricated by means of the layer-by-layer nano-assembly technique
Acha Morrás, Nerea de ; Elosúa Aguado, César ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier (MDPI, 2017)
Artículo / Artikulua
Luminescence-based sensing applications range from agriculture to biology, including medicine and environmental care, which indicates the importance of this technique as a detection tool. Luminescent optical sensors are ... -
Magnetic dipole super-resonances and their impact on mechanical forces at optical frequencies
Liberal Olleta, Íñigo ; Ederra Urzainqui, Íñigo ; Gonzalo García, Ramón ; Ziolkowski, Richard W. (Optical Society of America, 2014)
Artículo / Artikulua
Artificial magnetism enables various transformative optical phenomena, including negative refraction, Fano resonances, and unconventional nanoantennas, beamshapers, polarization transformers and perfect absorbers, and ... -
Magnetic human body communication based on double-inductor coupling
(IEEE, 2017) Contribución a congreso / Biltzarrerako ekarpena
This paper proposes a new technique for Human Body Communication (HBC) that uses the magnetic coupling in transmitter and receiver. A discussion about the presence of parasitic paths, when magnetic coupling is used in the ... -
Manipulating thermal emission with spatially static fluctuating fields in arbitrarily shaped epsilon-near-zero bodies
Liberal Olleta, Íñigo ; Engheta, Nader (National Academy of Sciences, 2018)
Artículo / Artikulua
The control and manipulation of thermal fields is a key scientific andtechnological challenge, usually addressed with nanophotonic struc-tures with a carefully designed geometry. Here, we theoreticallyinvestigate a different ... -
Manufacture and characteristics of wide bandwith, 3-D, EBG crystals for sub-millimetre antenna substrates
Azcona, L.; Alderman, B.; Huggard, P.G.; Gonzalo García, Ramón ; Martínez Pascual, Beatriz ; Ederra Urzainqui, Íñigo ; Río Bocio, Carlos del ; Hon, B.P. de; Beurden, M.C. van; Marchand, L.; Maagt, Peter de (2004)
Contribución a congreso / Biltzarrerako ekarpena
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Mapping smooth profile H-plane rectangular waveguide structures to substrate integrated waveguide technology
Díaz Caballero, E.; Urrea Micó, Verónica; Chudzik, Magdalena ; Arregui Padilla, Iván ; Arnedo Gil, Israel (Institution of Engineering and Technology, 2014)
Artículo / Artikulua
The guidelines for mapping rectangular waveguide structures to substrate integrated waveguide (SIW) technology are well understood for structures with straight walls. However, the mapping of a smooth profile structure from ... -
Measurement of polarization dependent loss, polarization mode dispersion and group delay of optical components using swept optical single sideband modulated signals
Sagüés García, Mikel ; Pérez Echegoyen, Miguel; Loayssa Lara, Alayn (Optical Society of America, 2008)
Artículo / Artikulua
We introduce a novel method for high wavelength-resolution measurement of polarization-averaged group delay, polarization dependent loss and polarization mode dispersion of optical components using swept optical single ... -
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 ... -
Mejora de antenas metalo-dieléctricas en la banda de frecuencias GSM-UMTS mediante elementos en transmisión extraordinaria
Illescas, Jesús; Estévez González, Aritz; Falcone Lanas, Francisco Javier ; Marcotegui, José Antonio (2009)
Contribución a congreso / Biltzarrerako ekarpena
In this work a dual band GSM/UMTS antenna is proposed. The antenna is based on a stacked planar structure, where the combination of collimation by Enhanced Transmission and the use of parasitic director elements is ... -
Mejora de las características de antenas usando superestratos parche-slot-parche (PSP)
Betancourt Quiñones, Diego; Ibáñez Loinaz, Asier; Río Bocio, Carlos del (2005)
Contribución a congreso / Biltzarrerako ekarpena
In this paper the novel Patch-Slot-Patch (PSP) structure is presented. The frequency resonate characteristics of this structure are calculated and measured. Gain enhancement of 15 dB is obtained for PSP structure as ... -
Mejoras de los parametros de radiacion de una antena choque-gaussiana para cobertura global
Teniente Vallinas, Jorge ; Gonzalo García, Ramón ; Río Bocio, Carlos del (2004)
Contribución a congreso / Biltzarrerako ekarpena
Extremely low sidelobe horn antennas are often required for the actual technology. This type of horn antennas is important to avoid interference with other systems. In this paper a novel design, consisting in attaching ... -
Meta-material behaviour of the new Coherently Radiating Periodic Structures (CORPS)
Betancourt Quiñones, Diego; Ibáñez Loinaz, Asier; García Esparza, Raúl ; Río Bocio, Carlos del (2005)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, the study of the new Coherently Radiating Periodic Structures (CORPS) like a Metamaterial sets out. The shape of the structure under study is composed by two different layers, one layer is an array of ... -
A metamaterial T-junction power divider
Sáenz Sáinz, Elena; Cantora Álvarez, Alejandro; Ederra Urzainqui, Íñigo ; Gonzalo García, Ramón ; Maagt, Peter de (IEEE, 2007)
Artículo / Artikulua
A metamaterial based compact microstrip T-junction power divider working at 10 GHz is proposed. The metamaterial unit cell consists of microstrip gaps and via holes whose behavior is equivalent to the combination of ... -
Metamaterials and extraordinary transmission structures applied to microwave, millimeter and terahertz waves devices
Rodríguez Ulibarri, Pablo (2017)
Tesis doctoral / Doktoretza tesia
Los metamateriales aparecen en los primeros años del siglo XXI como materiales artificiales que presentan un comportamiento electromagnético de alguna manera exótico. Al mismo tiempo, se descubre un nuevo fenómeno ... -
Metamaterials and plasmonics applied to devices based on periodic structures at high frequencies: microwaves, terahertz and optical range
Pacheco-Peña, Víctor (2016)
Tesis doctoral / Doktoretza tesia
Esta tesis muestra el trabajo de investigación desarollado bajo el programa de doctorado “tecnología de las comunicaciones” de la Universidad Pública de Navarra (UPNA), para el grado de Doctor (PhD) en Ingenieria de ... -
Metamaterials as super-substrate to enhance dipole antenna performances
Sáenz Sáinz, Elena; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo ; Maagt, Peter de (2004)
Contribución a congreso / Biltzarrerako ekarpena
In this work, pass band properties of Left Handed Media (LHM) are demonstrated. These properties have been used in order to make a LHM super-substrate that is put over a dipole antenna. This super-substrate is going to ...
