Browsing by UPNA Author "Ederra Urzainqui, Íñigo"
Now showing items 1-20 of 76
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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 ... -
Bull’s-eye antenna with circular polarization at millimeter waves based on ridge gap waveguide technology
Pérez Quintana, Dayan ; Ederra Urzainqui, Íñigo ; Beruete Díaz, Miguel (IEEE, 2021)
Artículo / Artikulua
In this communication, a Bull’s-Eye (BE) antenna with circular polarization (CP) based on ridge gap waveguide (RGW) technology is numerically and experimentally demonstrated. The structure is excited from the bottom with ... -
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 antennas in ridge gap waveguide with circular polarization
Pérez Quintana, Dayan ; Ederra Urzainqui, Íñigo ; Beruete Díaz, Miguel (IEEE, 2020)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, two compact antennas in Ridge Gap Waveguide (RGW) technology, working at 60 GHz, with a high-purity circular polarization (CP) within a broad bandwidth are manufactured and measured. The antennas are fed ... -
Compact bull's-eye antenna in ridge gap waveguide with circular polarization at 60 GHz
Pérez Quintana, Dayan ; Ederra Urzainqui, Íñigo ; Beruete Díaz, Miguel (IEEE, 2021)
Contribución a congreso / Biltzarrerako ekarpena
In this work, a Bull's-Eye (BE) antenna with circular polarization (CP) based on ridge gap waveguide (RGW) technology, working in the millimeter-wave band (60 GHz) is numerically and experimentally demonstrated. The structure ... -
Compact groove diamond antenna in gap waveguide technology with broadband circular polarization at millimeter waves
Pérez Quintana, Dayan ; Torres García, Alicia E. ; 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 a slotted SIW antenna covered with metasurface vs. a traditional array
Chocarro Álvarez, Javier; Pérez Escudero, José Manuel ; Ederra Urzainqui, Íñigo (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
In this article we compare two solutions to improve the radiation pattern of a slotted Substrate Integrated Waveguide (SIW) antenna: use of an E-plane array and covering it with a metasurface (MTS). To this aim, we compare ... -
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. ... -
Comparison of modified Soret lenses for dual band integrated detectors
Torres García, Alicia E. ; Pérez Escudero, José Manuel ; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo (IEEE, 2020)
Contribución a congreso / Biltzarrerako ekarpena
This paper presents the comparison of different modified Soret lenses suitable for a millimeter and submillimeterwave dualband integrated pixel detectors. The approach is based on the modification of a printed planar Soret ... -
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 alternatives for a submm-wave Fabry-Perot cavity antenna
Platero Rodrigo, Naiara; Iriarte Galarregui, Juan Carlos ; Ederra Urzainqui, Íñigo (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
This paper discusses different design alternatives for a high gain planar antenna at 240 GHz. The antenna is based on a Fabry-Perot configuration, where two different partial reflection surfaces (PRS) are considered: a ... -
Design of 300 ghz combined doubler/subharmonic mixer based on schottky diodes with integrated mmic based local oscillator
Pérez Escudero, José Manuel ; Quemada Mayoral, Carlos ; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo (MDPI, 2020)
Artículo / Artikulua
In this paper the design and experimental characterization of a combined doublersubharmonic mixer based on Schottky diodes which uses a 75 GHz MMIC based local oscillator is presented. This solution integrates in the same ...
