Browsing by UPNA Author "Ederra Urzainqui, Íñigo"
Now showing items 1-20 of 57
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300 GHz optoelectronic transmitter combining integrated photonics and electronic multipliers for wireless communication
Ali, Muhsin; Pérez Escudero, José Manuel
; Guzmán Martínez, Robinson Cruzoe; Lo, Mu Chieh; Ederra Urzainqui, Íñigo ; Gonzalo García, Ramón ; García Muñoz, Luis Enrique (MDPI, 2019)
Artículo / Artikulua 
THz communications systems at carrier frequencies above 200 GHz are the key to enable next-generation mobile communication networks with 100 Gbit/s wireless data rates. One of the key questions is, which carrier frequency ... -
Advanced feeds for mm-wave antenna systems
Teniente Vallinas, Jorge; Iriarte Galarregui, Juan Carlos ; Ederra Urzainqui, Íñigo ; Gonzalo García, Ramón (Springer, 2018)
Capítulo de libro / Liburuen kapitulua
Millimeter-wave antenna systems have traditionally required high performance feeds in order to fulfill its stringent requirements. Therefore, this goal has been achieved by corrugated horns. However, in the last years new ... -
Amorphous glass-coated ferromagnetic wires in microwave engineering
Liberal Olleta, Íñigo (2013)
Tesis doctoral / Doktoretza tesia
En esta tesis se ha estudiado el uso de hilos ferromagnéticos recubiertos de vidrio en ingeniería de microondas. Para este fin, se han formulado modelos analíticos y equivalentes circuitales de la interacción entre un ... -
Análisis de efecto de un superestrato left-handed en la apertura de una guía rectangular
Sáenz Sáinz, Elena; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo ; Maagt, Peter de (2005)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, results showing the experimental verification of the gain improvement of a rectangular waveguide antenna when a left-handed material (LHM) is used as superstrate are presented. The improvement has been ... -
Boresight radiation of a dipole antenna with a uniform or non-uniform left handed superstrate
Sáenz Sáinz, Elena; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo ; Maagt, Peter de (2006)
Contribución a congreso / Biltzarrerako ekarpena
In this paper measurements of the radiation performances of a dipole fed by a coaxial balun and a dipole with a left handed superstrate based on a finite periodic repetition of a unit cell are compared. Two types ... -
Broadband radar cross-section reduction using AMC technology
Iriarte Galarregui, Juan Carlos; Tellechea Pereda, Amagoia ; Martínez de Falcón, José Luis ; Ederra Urzainqui, Íñigo ; Gonzalo García, Ramón ; Maagt, Peter de (IEEE, 2013)
Artículo / Artikulua
This paper presents the design, fabrication and characterization of a planar broadband chessboard structure to reduce the radar cross-section (RCS) of an object. The chessboard like configuration is formed by combining two ... -
A Chebyshev transformer-based microstri-to-groove-gap-waveguide inline transition for MMIC packaging
Pérez Escudero, José Manuel; Torres García, Alicia E. ; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo (IEEE, 2019)
Artículo / Artikulua
The gap waveguide technology has become an alternative to millimeter- and submillimeter-wave electronic circuit packaging thanks to the loss reduction associated with its use. In this paper, a simplified design of an inline ... -
Circuit and multipolar approaches to investigate the balance of powers in 2D scattering problems
Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo ; Gonzalo García, Ramón ; Ziolkowski, Richard W. (EMW Publishing, 2013)
Artículo / Artikulua
Circuit and multipolar approaches are presented to investigate the correlation between absorption and scattering processes in 2D problems. This investigation was inspired by earlier works of Prof.R.E. Collin, which pointed ... -
Compact groove diamond antenna in gap waveguide technology with broadband circular polarization at millimeter waves
Pérez, Dayan; Torres-García, Alicia; Ederra Urzainqui, Íñigo ; Beruete Díaz, Miguel (IEEE, 2020)
Artículo / Artikulua
In this paper, three compact antennas using the Ridge Gap Waveguide (RGW) technology working in the millimeter-wave band (60 GHz), with a high-purity and broadband circular polarization (CP) are numerically and experimentally ... -
Comparison of fourth-harmonic and combined doubler/subharmonic mixer with integrated MMIC based local oscillator
Pérez Escudero, José Manuel; Quemada Mayoral, Carlos ; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo (IEEE, 2019)
Contribución a congreso / Biltzarrerako ekarpena
In this paper a comparison between a fourth harmonic mixer and a combined doubler/subharmonic mixer based on Schottky diodes working at 300 GHz with MMIC Local Oscillator (LO) integrated in a single enclosing is presented. ... -
A comprehensive analysis of the absorption spectrum of conducting ferromagnetic wires
Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo ; Gómez Polo, Cristina ; Labrador Otamendi, Alberto; Pérez de Landazábal Berganzo, José Ignacio ; Gonzalo García, Ramón (IEEE, 2012)
Artículo / Artikulua
A detailed analysis of the absorption spectrum of conductive ferromagnetic wires is presented. The absorption spectrum is computed from the solution to the scattering problem, and circuit models are formulated to clarify ... -
Decoupling of multifrequency dipole antenna arrays for microwave imaging applications
Sáenz Sáinz, Elena; Guven, K.; Ozbay, Ekmel; Ederra Urzainqui, Íñigo ; Gonzalo García, Ramón (Hindawi Publishing Corporation, 2010)
Artículo / Artikulua
The mutual coupling between elements of a multifrequency dipole antenna array is experimentally investigated by S-parameter measurements and planar near-field scanning of the radiated field. A multifrequency array with ... -
A dedicated numerical technique for field simulations of antennas on electromagnetic band-gap substrates
Hon, B.P. de; Beurden, M.C. van; Gonzalo García, Ramón; Martínez Pascual, Beatriz ; Ederra Urzainqui, Íñigo ; Río Bocio, Carlos del ; Azcona, L.; Alderman, B.; Huggard, P.G.; Marchand, L.; Maagt, Peter de (2004)
Contribución a congreso / Biltzarrerako ekarpena
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Design of a groove gap waveguide to microstrip inline transition
Pérez Escudero, José Manuel; Torres García, Alicia E. ; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo (IEEE, 2019)
Contribución a congreso / Biltzarrerako ekarpena
In this paper the design of an inline transition between microstrip and groove gap waveguide operating at Wband is presented. The transition consists of two sections: a tapered microstrip line and a Chebyshev transformer. ... -
Design of a multifrequency antenna array with the use of left-handed superstrates
Sáenz Sáinz, Elena; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo ; Maagt, Peter de (2005)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, the radiation performances of different antenna configuration based on Left-Handed superstrates are presented. First of all, the behaviour of a Left- Handed (LH) unit cell is analysed, showing a resonant ... -
Design of a planar meta-surface based on dipoles and wires for antenna applications
Sáenz Sáinz, Elena; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo ; Maagt, Peter de (2006)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, the design of a planar meta-surface based on dipoles and wires is presented. The unit cell is formed by three independent layers, which contain two parallel dipoles and one wire. The behaviour of these ... -
Development of an auto-calibrated receiver in planar technology at millimetre-wave frequencies
Rebollo Mugueta, Ainara (2015)
Tesis doctoral / Doktoretza tesia
This dissertation deals with the development of an auto-calibrated receiver at W-band for Passive Millimetre-Wave imaging applications. The proposed receiver has three main characteristics. Firstly, its differential ... -
Development of sub-millimetre wave band subsystems and packaging techniques
Pérez Escudero, José Manuel (2019)
Tesis doctoral / Doktoretza tesia
En esta tesis se investigan técnicas de diseño y fabricación de dispositivos, ya sean transmisores o receptores, a frecuencias de THz y submilimétricas y técnicas de empaquetado con el objetivo de que el dispositivo final ... -
Dipolos y metamateriales: mejora de las características de radiación
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 ... -
Dispersion properties of an elliptical patch with cross shaped aperture for synchronized propagation of transverse magnetic and electric surface waves
Tellechea Pereda, Amagoia; Ederra Urzainqui, Íñigo ; Gonzalo García, Ramón ; Iriarte Galarregui, Juan Carlos (MDPI, 2018)
Artículo / Artikulua
This paper presents a novel pixel geometry for the implementation of metasurfaces requiring synchronized phase propagation of transverse magnetic (TM) and transverse electric (TE) modes. The pixel is composed by an elliptical ...
