Envíos recientes

  • Desarrollo de antena espiral con alimentación lateral realizada mediante fabricación aditiva 

    Martín-Bayona, Francisco-José; Pérez-Escribano, Mario; Márquez-Segura, Enrique (2022)
    This contribution presents an step-by-step design and manufacturing of a spiral antenna with lateral feeding mainly for automotive applications. The spiral antenna is intended to work in Ultra-Wide Band (UWB), a new ...
  • Fuentes de error aleatorio en la estimación de la constante de propagación de líneas de transmisión usando medidas de dos puertos 

    Pérez-Escribano, Mario; Márquez-Segura, Enrique (2022)
    In this contribution, we study different error sources that affect the estimation of the propagation constant in broadband methods. For this purpose, a study on the state-of-the-art has been made. The behavior of different ...
  • Temporal phase synchrony disruption in dyslexia: anomaly patterns in auditory processing 

    Formoso Trigo, Marco Antonio; Ortiz-Garcia, Andres; Martınez Murcia, Francisco J.; Aquino Brıtez, Diego; Escobar, Juan José; [et al.] (2022)
    The search for a dyslexia diagnosis based on exclusively objective methods is currently a challenging task. Usually, this disorder is analyzed by means of behavioral tests prone to errors due to their subjective nature; ...
  • Systemic comparison of dielectric and plasmonic biosensors on a silicon photonics platform 

    Sánchez-Ramírez, Ana; Luque-González, Jose Manuel; Wanguemert-Perez, Juan Gonzalo; Molina-Fernandez, Iñigo (2022)
    Plasmonic and dielectric based waveguides are widely used for biosensing applications. However, the use of different sensing architectures and platforms hinders the fair comparison of their respective figures of merit. In ...
  • On the eigenstate equivalent circuit for lossy asymmetric two-ports and its applications 

    Esteban, Jaime; Hernández Escobar, Alberto; Abdo Sánchez, Elena; Mateos Ruíz, Pablo; Martin-Guerrero, Teresa Maria; [et al.] (2022)
    An equivalent-circuit topology for two-port lossy non-symmetric reciprocal networks is presented [1]. The circuit topology is based on the eigenstate decomposition. The proposed circuit consists of two immittances and two ...
  • Polarization-insensitive multimode interference coupler based on bricked subwavelength gratings 

    Pérez-Armenta, Carlos; Ortega-Moñux, Alejandro; Luque-González, Jose Manuel; Halir, Robert; Reyes Iglesias, Pedro José; [et al.] (2022)
    The recently proposed bricked patterning enables enhanced performance in integrated photonics devices based on subwavelength gratings, including polarization insensitivity. We report on the design of a polarization-agnostic ...
  • Curved waveguide grating demultiplexer (CWG) with a flattened response via bimodal output waveguides 

    Hadij ElHouati, Abdel; Halir, Robert; Ortega-Moñux, Alejandro; Wanguemert-Perez, Juan Gonzalo; Schmid, J.H.; [et al.] (2022-05-08)
    We demonstrate a compact wavelength demultiplexer for the silicon-on-insulator platform based on the curved waveguide grating (CWG) architecture. The proposed device uses bi- modal output waveguides to achieve a low-loss ...
  • Performance analysis of equivalent-circuit topologies for periodic leaky-wave antenna rsymmetric Radiators 

    Hernández Escolar, Alberto; Abdo Sánchez, Elena; Mateos Ruíz, Pablo; Esteban, Jaime; Martin-Guerrero, Teresa Maria; [et al.] (2022-04)
    The traditional problem of broadside radiation degradation in leaky-wave antennas has been overcome in the past years with the introduction of some asymmetry in the radiator. This article analyses the performance of two ...
  • Eigenstate equivalent circuit for bi-periodic surfaces: Application to three parallel dipoles 

    Hernández Escobar, Alberto; Abdo Sánchez, Elena; Esteban, Jaime; Martin-Guerrero, Teresa Maria; Camacho-Peñalosa, Carlos (2022-03-29)
    An equivalent circuit for the unit cell of bi-periodic surfaces is proposed. The equivalent circuit is general and simple. It is based on the decomposition of the eigenmodes of the structure and it takes into account the ...
  • Non-homogeneous Fabry-Pérot antenna design process to improve aperture efficiency 

    Mateos Ruíz, Pablo; Abdo Sánchez, Elena; Camacho-Peñalosa, Carlos (2022-03-27)
    A novel technique to design Fabry-Pérot antennas with non-homogeneous partially reflective surfaces (PRSs) is described. It uses a transmission line circuit model to efficiently obtain all necessary unit cell designs that ...
  • Subwavelength-engineered metamaterial devices for integrated photonics 

    Sánchez-Postigo, Alejandro; Ginel-Moreno, Pablo; Pereira-Martín, Daniel; Hadij-ElHouati, Abdelfettah; Luque-González, José Manuel; [et al.] (2022)
    The engineering of subwavelength grating metamaterials has become an essential design strategy in silicon photonics. The lithographic segmentation of integrated waveguides at the subwavelength scale enables the synthesis ...
  • Close detection robotic platform for Search And Rescue missions based on Bluetooth Low Energy 

    Cantizani Estepa, Juan; Bravo Arrabal, Juan; Fernández Lozano, Juan Jesús; Fortes Rodríguez, Sergio; Barco-Moreno, Raquel; [et al.] (2022-02)
    Improvements in telecommunications and digitalization directly improve the efficacy of a wide variety of processes. Recently, detection systems have received considerable attention because of the importance of tracking ...
  • KQI evaluation for 360-Video services over mobile networks 

    Peñaherrera Pulla, Oswaldo; Baena González, Carlos; Fortes Rodríguez, Sergio; Baena Martínez, Eduardo; Barco-Moreno, Raquel (2022-02)
    New generation services have become the pillars and basis for the development of cutting-edge mobile networks as 5G and 6G. These technologies are intended to provide high-quality services which currently are not available, ...
  • UWB and WiFi characterization for localization in construction sites 

    Álvarez Merino, Carlos Simón; Luo Chen, Hao Qiang; Llanes Michel, Joel; Jatib Khatib, Emil; Barco-Moreno, Raquel (2022-02)
    High-precision location is becoming a necessity in the future Industry 4.0 applications that will come up in the near future. However, the construction sector remains particularly obsolete in the adoption of Industry 4.0 ...
  • Failure management insights in 5G using ns-3 network simulator 

    Tarrías Muñoz, Antonio; Fortes Rodríguez, Sergio; Barco-Moreno, Raquel (2022-02)
    Failure management has been one of the most researched fields in cellular networks paradigm. Networks operators has experienced many problems on their deployments with each of the past generations. 5G networks aim high to ...
  • Coordination and load analysis of C-RAN in HetNets by graph-partitioning 

    Sánchez, Joaquín; Toril, Matías; Gijón, Carolina; Luna-Ramírez, Salvador; Fernández-Navarro, Mariano (2022-02)
    In 5G systems, ultra-dense networks are a promising technique to cope strong increase of traffic data in mobile communications. In addition, the deployment of indoor small cells offloads the wireless system from macrocells ...
  • Modelling Slice Performance in Radio Access Networks through Supervised Learning 

    Gijón, Carolina; Toril-Genoves, Matias; Luna-Ramírez, Salvador (2022-02)
    In 5G systems, the Network Slicing (NS) feature allows to deploy several logical networks customized for specific verticals over a common physical infrastructure. To make the most of this feature, cellular operators need ...
  • A quality of experience evaluation method for an UAV first person view system 

    González, Nuria; Solera-Delgado, Marta; Ruiz-Vega, Fernando Jesus; Luna-Ramírez, Salvador; Toril-Genoves, Matias (2022-02)
    Unmanned Aerial Vehicles (UAV) communication systems are an increasingly widespread and emerging technology due to their flexibility, low cost and usability properties. Hence, the demand for Beyond Visual Line of ...
  • Arquitectura HW para decodificador Two-Step SOVA con recorridos hacia atrás sistólicos 

    Martín-Vega, Francisco J.; Lopez-Martinez, F. Javier; Entrambasaguas, J. Tomás (2012-09-12)
    In this paper, a novel SOVA (Soft-Output Viterbi algorithm) decoder using systolic arrays to carry out the trace-back method is presented. Systolic arrays are associated with high data rates and small resource requirements, ...
  • Integrated metamaterial surface-emitting antenna for beam steering applications 

    Ginel-Moreno, Pablo; Sánchez-Postigo, Alejandro; de-Oliva Rubio, José; Hadij-ElHouati, Abdelfettah; Ye, Winnie N.; [et al.] (2021-12)
    Integrated optical antennas are relevant devices for the development of next-generation LIDAR systems. Here we experimentally demonstrate a new topology to implement long antennas in silicon-on-insulator platform. The ...

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