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Browsing by UPV Unit "Universitat Politècnica de València. Instituto Universitario de Telecomunicación y Aplicaciones Multimedia - Institut Universitari de Telecomunicacions i Aplicacions Multimèdia"

Now showing items 1-20 of 1324

"Phoenix' reflectarray unit cell with reduced size and inductive loading

Makdissy, Tony; Gillard, Raphael; Fourn, Erwan; Ferrando Rocher, Miguel; Girard, Ettiene; Legay, Herve; Le Coq , Laurent (Institution of Engineering and Technology (IET), 2016-09-17)

This study presents a new Phoenix unit cell with reduced size (l0/3 at centre frequency). Three different techniques are investigated to preserve a complete 360° phase range, with quasi-linear and parallel phase responses over ...
(Invited) Cascade FBGs distributed sensors interrogation using microwave photonics filtering techniques

Ricchiuti, Amelia Lavinia; Hervás-Peralta, Javier; Sales Maicas, Salvador (Elsevier, 2016-03)

Systems to interrogate photonic sensors based on long fiber Bragg gratings (FBGs) are illustrated and experimentally validated. The FBGs-based devices are used as quasi-distributed sensors and have demonstrated their ability ...
1D Periodic Corrugated Waveguides for Real-Time Detection of Increasing Concentrations of Thrombin

Martinez-Perez, Paula; Gómez-Gómez, María Isabel; Torrijos-Morán, Luis; Ivanova-Angelova, Todora; Griol Barres, Amadeu; Hurtado Montañés, Juan; Bellieres, Laurent Christophe; García-Rupérez, Jaime (OSA (Optical Society), 2020-07-16)

[EN] An aptasensor based on periodic 1D corrugated waveguides is demonstrated to be suitable for the specific and continuous detection of thrombin at nM concentrations in real time with an estimated detection limit of 33.5 pM.
2.4 GHz MIMO Antenna on Microstrip Technology

Escrivá Muñoz, Jesús (Universitat Politècnica de València, 2014-06-24)

In this work, we have analyzed triangular and rectangular microstrip patches and their use in MIMO communication systems. Triangular patches have demonstrated a great capability of miniaturization due to its geometrical ...
3-D Printed Waveguide Filters: Manufacturing Process and Surface Mounted Assembly

Nova-Giménez, Vicente; Bachiller Martin, Maria Carmen; Pascual-Folch, Jordi; Ferrer, Álvaro; Ponce-Gonzalez, Luis Nicolas; Marín García, Mª Luisa; Boria Esbert, Vicente Enrique (Institute of Electrical and Electronics Engineers, 2023-12)

[EN] This article presents a new approach to manufacturing and assembling inexpensive, lightweight devices using 3-D-printed waveguides, and surface-mount technology (SMT). Specifically, we have employed stereolithography ...
5G New Radio for Terrestrial Broadcast: A Forward-Looking Approach for NR-MBMS

Gimenez, Jordi Joan; Carcel, Jose Luis; Fuentes, Manuel; Garro, Eduardo; Elliott, Simon; Vargas, David; Menzel, Christian; Gomez-Barquero, David (Institute of Electrical and Electronics Engineers, 2019-06)

[EN] 3GPP LTE eMBMS release (Rel-) 14, also referred to as further evolved multimedia broadcast multicast service (FeMBMS) or enhanced TV (EnTV), is the first mobile broadband technology standard to incorporate a transmission ...
5G Radio Access Networks Enabling Efficient Point-to-Multipoint Transmissions

Säily, Mikko; Barjau, Carlos; Navrátil, David; Prasad, Athul; Gomez-Barquero, David; Tesema, Fasil B. (Institute of Electrical and Electronics Engineers, 2019-12)

[EN] The first release of 5th Generation (5G) technology from 3rd Generation Project Partnership (3GPP) Rel'15 has been completed in December 2018. An open issue with this release of standards is that it only supports ...
5G Spectrum: enabling the future mobile landscape

Schotten, Hans D.; Uusitalo, Mikko A.; Monserrat del Río, José Francisco; Queseth, Olav (Institute of Electrical and Electronics Engineers (IEEE), 2015-07)

The arrival of the fifth generation (5G) is expected to come together with three important enablers. First, the densification of access nodes will continue. Second, 5G networks must be highly flexible and adapt to the ...
5G Visualization: The METIS-II Project Approach

Martín-Sacristán, David; Herranz Claveras, Carlos; Monserrat del Río, Jose Francisco; Szczygiel, Andrzej; Kuruvatti, Nandish P.; Garcia-Roger, David; Prado-Alvarez, Danaisy; Boldi, Mauro; Belschner, Jakob; Schotten, Hans D. (Hindawi Limited, 2018)

[EN] One of the main objectives of the METIS-II project was to enable 5G concepts to reach and convince a wide audience from technology experts to decision makers from non-ICT industries. To achieve this objective, it was ...
5th Generation mobile networks: a new opportunity for the convergence of mobile broadband and broadcast services

Calabuig Gaspar, Jordi; Monserrat del Río, José Francisco; Gómez Barquero, David (Institute of Electrical and Electronics Engineers (IEEE), 2015-02)

[EN] This article analyzes the challenges and opportunities that the upcoming definition of future 5G mobile networks brings to the mobile broadband and broadcast industries to form a single converged network. It reviews ...
60-GHz Single-Layer Slot-Array Antenna fed by Groove Gap Waveguide

Ferrando-Rocher, Miguel; Valero-Nogueira, Alejandro; Herranz Herruzo, José Ignacio; Teniente, Jorge (Institute of Electrical and Electronics Engineers, 2019-05)

[EN] A V-band single-layer low-loss slot-array antenna is presented in this letter. Radiating slots are backed by coaxial cavities, which are fed through a groove gap waveguide E-plane corporate feed network. Cavity ...
64-QAM LTE signal transmission at 25 GHz over hybrid SSMF and non-uniform turbulent FSO channel

Vallejo-Castro, Luis; Ortega Tamarit, Beatriz; Nguyen, Dong-Nhat; Bohata, Jan; Zvanovec, Stanislav (IEEE, 2020-11-25)

[EN] This contribution describes the impact of non uniform thermal-induced turbulence on 64-QAM LTE signal transmission at 25 GHz millimeter wave (mmW) signal along hybrid RoF/RoFSO links. Microwave photonic signal generation ...
8 x 8 Ka-Band Dual-Polarized Array Antenna Based on Gap Waveguide Technology

Ferrando Rocher, Miguel; Herranz Herruzo, José Ignacio; Valero-Nogueira, Alejandro; Bernardo Clemente, Bernardo; ZAMAN, ASHRAF UZ; Yang, Jian (Institute of Electrical and Electronics Engineers, 2019-07)

[EN] This paper describes an 8 x 8 fully metallic high-efficiency dual-polarized array antenna working at the Ka-band, based on the gap waveguide (GW) concept. The radiating element is a circular aperture backed by two ...
A 3D Smith Chart based on the Riemann Sphere for Active and Passive Microwave Circuits

Muller, Andrei A.; Soto Pacheco, Pablo; Dascalu, Dan; Neculoiu, Dan; Boria Esbert, Vicente Enrique (Institute of Electrical and Electronics Engineers (IEEE), 2011-06)

This letter proposes a spherical 3-D Smith Chart suitable for representing both active and passive microwave circuits. Using the mathematical concept of the Riemann sphere, the extended reflection coefficient plane is ...
A bayesian direction-of-arrival model for an undetermined number of sources using a two-microphone array

Escolano Carrasco, José; Xiang, Ning; Pérez-Lorenzo, José M.; Cobos Serrano, Máximo; López Monfort, José Javier (Acoustical Society of America, 2014-02)

Sound source localization using a two-microphone array is an active area of research, with considerable potential for use with video conferencing, mobile devices, and robotics. Based on the observed time-differences of ...
A Bayesian inference model for speech localization (L)

Escolano Carrasco, José; Pérez Lorenzo, José Manuel; Xiang, Ning; Cobos Serrano, Máximo; López Monfort, José Javier (Acoustical Society of America, 2012-09)

The localization of active speakers with microphone arrays is an active research line with a considerable interest in many acoustic areas. Many algorithms for source localization are based on the computation of the Generalized ...
A broadband pattern diversity annular slot antenna

Gallo, Michelle; Antonino Daviu, Eva; Ferrando Bataller, Miguel; Bozzetti, Michele; Molina García-Pardo, José María; Juan Llacer, Leandro (Institute of Electrical and Electronics Engineers (IEEE), 2012-03)

An annular slot antenna suitable for pattern diversity in wideband applications is presented. Pattern diversity is obtained by feeding the antenna simultaneously with two microstrip lines printed on the back of the substrate, ...
A Computational Efficient Nyquist Shaping Approach for Short-Reach Optical Communications

Pérez Pascual, Mª Asunción; Bruno, Julián S.; Almenar Terre, Vicenç; Valls Coquillat, Javier (Institute of Electrical and Electronics Engineers, 2020-04-01)

[EN] Recently, Half-Cycle Nyquist Subcarrier Modulation (HC-SCM) was proposed to achieve high spectral efficiency in intensity-modulator direct-detection optical links. This paper shows that the HC-SCM scheme has a high ...
A DASH server-side delay-based representation switching solution to improve the quality of experience for low-latency live video streaming

Belda Ortega, Román; Arce Vila, Pau; Guerri Cebollada, Juan Carlos; De Fez, Ismael (Elsevier, 2023-11)

[EN] This work addresses the integration of real-time transmission systems, including IP cameras and production systems (like OBS or vMix), that use protocols such as RTSP (Real Time Streaming Protocol) or SRT (Secure ...
A high-temperature fiber sensor using a low cost interrogation scheme

Barrera Vilar, David; Sales Maicas, Salvador (MDPI, 2013-09)

Regenerated Fibre Bragg Gratings have the potential for high-temperature monitoring. In this paper, the inscription of Fibre Bragg Gratings (FBGs) and the later regeneration process to obtain Regenerated Fiber Bragg Gratings ...