InaMat

Recent Submissions

  • Broadband 3-D shared aperture high isolation nine-element antenna array for on-demand millimeter-wave 5G applications 

    Alibakhshikenari, Mohammad; Virdee, Bal S.; Vadalà, Valeria; Dalarsson, Mariana; Cos Gómez, María Elena de; Alharbi, Abdullah G.; Burokur, Shah Nawaz; Aïssa, Sonia; Dayoub, Iyad; Falcone Lanas, Francisco Upna Orcid; Limiti, Ernesto (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
    The paper presents the results of a novel 3-D shared aperture 3 × 3 matrix antenna-array for 26 GHz band 5 G wireless networks. Radiation elements constituting the array are hexagonal-shaped patches that are elevated ...
  • Analysis of gyrobianisotropic media effect on the input impedance, field distribution and mutual coupling of a printed dipole antenna 

    Bouknia, Mohamed Lamine; Zebiri, Chemseddine; Sayad, Djamel; Elfergani, Issa; Matin, Mohammad; Alibakhshikenari, Mohammad; Alharbi, Abdullah G.; Hu, Yim Fun; Abd-Alhameed, Raed; Rodriguez, Jonathan; Falcone Lanas, Francisco Upna Orcid; Limiti, Ernesto (Springer Nature, 2022)   Artículo / Artikulua  OpenAccess
    In this paper, we present an analytical study for the investigation of the effects of the magnetoelectric elements of a reciprocal and nonreciprocal bianisotropic grounded substrate on the input impedance, resonant length ...
  • Direct observation of ideal electromagnetic fluids 

    Li, Hao; Zhou, Ziheng; Sun, Wangyu; Lobet, Michaël; Engheta, Nader; Liberal Olleta, Íñigo Upna Orcid; Li, Yue (Springer Nature, 2022)   Artículo / Artikulua  OpenAccess
    Near-zero-index (NZI) media have been theoretically identified as media where electromagnetic radiations behave like ideal electromagnetic fluids. Within NZI media, the electromagnetic power flow obeys equations similar ...
  • Gas detection using LMR-based optical fiber sensors 

    Dreyer, Julián José; Ozcariz Celaya, Aritz Upna Orcid; Ascorbe Muruzabal, Joaquín Upna Orcid; Zubiate Orzanco, Pablo Upna Orcid; Vitoria Pascual, Ignacio Upna Orcid; Martelli, Cicero; Cardozo da Silva, Jean Carlos; Ruiz Zamarreño, Carlos Upna Orcid (MDPI, 2018)   Artículo / Artikulua  OpenAccess
    This work presents a first approach to the utilization of Lossy Mode Resonance (LMR) based optical fiber sensors for gas detection. The optical sensor is based on a SnO2 thin-film fabricated onto the core of cladding ...
  • Strain sensing based on resonant states in 2D dielectric photonic quasicrystals 

    Andueza Unanua, Ángel María Upna Orcid; Pérez Conde, Jesús Upna Orcid; Sevilla Moróder, Joaquín Upna Orcid (Optica, 2021)   Artículo / Artikulua  OpenAccess
    This paper reports the numerical and experimental study of the strain sensing effect of bidimensional quasiperiodic structures made with dielectric cylinders. Structures of around 100 cylinders arranged following a Penrose ...
  • Design and on-field validation of an embedded system for monitoring second-life electric vehicle lithium-ion batteries 

    Castillo Martínez, Diego Hilario; Rodríguez Rodríguez, Adolfo Josué; Soto Cabria, Adrián Upna Orcid; Berrueta Irigoyen, Alberto Upna Orcid; Vargas Requena, Dávid Tomás; Matías Maestro, Ignacio Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Ursúa Rubio, Alfredo Upna Orcid; Rodríguez Rodríguez, Wenceslao Eduardo (MDPI, 2022)   Artículo / Artikulua  OpenAccess
    In the last few years, the growing demand for electric vehicles (EVs) in the transportation sector has contributed to the increased use of electric rechargeable batteries. At present, lithium-ion (Li-ion) batteries are the ...
  • Impact of micro-cycles on the lifetime of lithium-ion batteries: an experimental study 

    Soto Cabria, Adrián Upna Orcid; Berrueta Irigoyen, Alberto Upna Orcid; Mateos Inza, Miren; Sanchis Gúrpide, Pablo Upna Orcid; Ursúa Rubio, Alfredo Upna Orcid (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
    Experimental aging studies are commonly conducted on lithium-ion batteries by full charge and discharge cycles. However, such profiles may differ from the actual operation of batteries in electric vehicles and stationary ...
  • Enabling customizable services for multimodal smart mobility with city-platforms 

    Al-Rahamneh, Anas; Astrain Escola, José Javier Upna Orcid; Villadangos Alonso, Jesús Upna Orcid; Klaina, Hicham Upna; Picallo Guembe, Imanol Upna Orcid; López iturri, Peio Upna Orcid; Falcone Lanas, Francisco Upna Orcid (IEEE, 2021)   Artículo / Artikulua  OpenAccess
    In the last decades, the cities' capacity for generating digital information has grown exponentially. In this context, the successful implementation of smart cities' concept depends on the current possibility of handling ...
  • Design and empirical validation of a LoRaWAN IoT Smart Irrigation System 

    Fraga Lamas, Paula; Celaya Echarri, Mikel; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; López iturri, Peio Upna Orcid; Falcone Lanas, Francisco Upna Orcid; Fernández Caramés, Tiago M. (MDPI, 2020)   Artículo / Artikulua  OpenAccess
    In some parts of the world, climate change has led to periods of drought that require managing efficiently the scarce water and energy resources. This paper proposes an IoT smart irrigation system specifically designed for ...
  • Basketball player on-body biophysical and environmental parameter monitoring based on wireless sensor network integration 

    Picallo Guembe, Imanol Upna Orcid; López iturri, Peio Upna Orcid; Astrain Escola, José Javier Upna Orcid; Aguirre Gallego, Erik Upna Orcid; Azpilicueta Fernández de las Heras, Leyre; Celaya-Echarri, Mikel; Villadangos Alonso, Jesús Upna Orcid; Falcone Lanas, Francisco Upna Orcid (IEEE, 2021)   Artículo / Artikulua  OpenAccess
    Sport activities have benefited in recent years from the progressive adoption of different technological assets in order to improve individual as well as group training, collect different statistics or enhance the spectator ...
  • Attacking bitcoin anonymity: generative adversarial networks for improving bitcoin entity classification 

    Zola, Francesco; Segurola-Gil, Lander; Bruse, Jan Lukas; Galar Idoate, Mikel Upna Orcid; Orduna Urrutia, Raúl Upna Orcid (Springer, 2022)   Artículo / Artikulua  OpenAccess
    Classification of Bitcoin entities is an important task to help Law Enforcement Agencies reduce anonymity in the Bitcoin blockchain network and to detect classes more tied to illegal activities. However, this task is ...
  • Two-stage OTA with all subthreshold MOSFETs and optimum GBW to DC-current ratio 

    Beloso Legarra, Javier Upna Orcid; Grasso, A.; López Martín, Antonio Upna Orcid; Palumbo, Gaetano; Pennisi, Salvatore (IEEE, 2022)   Artículo / Artikulua
    An approach for the design of two-stage classAB OTAs with sub-1µA current consumption is proposed and demonstrated. The approach employs MOS transistors operating in subthreshold and allows maximum gain-bandwidth product ...
  • In-field energy performance of solar PV module made of UMG silicon 

    Guerra, Moisés R.; Parra Laita, Íñigo de la Upna Orcid; García Solano, Miguel Upna Orcid; Pascual Miqueleiz, Julio María Upna Orcid (IEEE, 2022)   Artículo / Artikulua
    Upgraded metallurgical grade silicon (UMG-Si) PV modules have failed to make their space in the PV market, which was partly to the uncertainty on their in-field performance that brings the wide disparity of results published ...
  • Development of a prediction protocol for the screening of metabolic associated fatty liver disease in children with overweight or obesity 

    Osés Recalde, Maddi Upna Orcid; Cadenas-Sánchez, Cristina Upna Orcid; Medrano Echeverría, María Upna Orcid; Galbete Jiménez, Arkaitz Upna Orcid; Miranda Ferrúa, Emiliano; Ruiz, Jonatan R.; Sánchez-Valverde, Felix; Ortega, Francisco B.; Cabeza Laguna, Rafael Upna Orcid; Villanueva Larre, Arantxa Upna Orcid; Idoate, Fernando; Labayen Goñi, Idoia Upna Orcid (Wiley, 2022)   Artículo / Artikulua  OpenAccess
    Background: the early detection and management of children with metabolic associ-ated fatty liver disease (MAFLD) is challenging. Objective: to develop a non-invasive and accurate prediction protocol for the identi-fication ...
  • Performance assessment of an experimental CO2 transcritical refrigeration plant working with a thermoelectric subcooler in combination with an internal heat exchanger 

    Casi Satrústegui, Álvaro Upna Orcid; Aranguren Garacochea, Patricia Upna Orcid; Araiz Vega, Miguel Upna Orcid; Sánchez, Daniel; Cabello, Ramón; Astrain Ulibarrena, David Upna Orcid (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
    Regulations in the refrigeration sector are forcing the transition to low global warming potential fluids such as carbon dioxide in order to decrease direct greenhouse gases emissions. Several technologies have arisen over ...
  • Analysis of low power wide area network wireless technologies in smart agriculture for large-scale farm monitoring and tractor communications 

    Klaina, Hicham; Picallo Guembe, Imanol Upna Orcid; López Iturri, Peio Upna Orcid; Campo-Bescós, Miguel Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Aghzout, Otman; Vázquez Alejos, Ana; Falcone Lanas, Francisco Javier Upna Orcid (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
    In this paper, the assessment of multiple scenario cases for large-scale farm monitoring using Low-Power Wide-Area Network (LPWAN) based near-ground sensor nodes with the interaction of both tractors and farmers are ...
  • Gamification for photonics students: labescape 

    Pérez Herrera, Rosa Ana Upna Orcid; Tainta Ausejo, Santiago Upna Orcid; Elosúa Aguado, César Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
    The idea of utilizing game elements in non-gaming situations has sparked a lot of attention in recent years, especially in topics such as education and training. Game-based techniques appear to be an increasing trend in a ...
  • Lossy mode resonance based microfluidic platform developed on planar waveguide for biosensing applications 

    Benítez Pérez, Melanys; Zubiate Orzanco, Pablo Upna Orcid; Del Villar, Ignacio Upna Orcid; Socorro Leránoz, Abián Bentor Upna Orcid; Matías Maestro, Ignacio Upna Orcid (MDPI, 2022)   Artículo / Artikulua  OpenAccess
    The development of resonance phenomena-based optical biosensors has gained relevance in recent years due to the excellent optical fiber properties and progress in the research on materials and techniques that allow resonance ...
  • Impact of a thermoelectric subcooler heat exchanger on a carbon dioxide transcritical refrigeration facility 

    Casi Satrústegui, Álvaro Upna Orcid; Aranguren Garacochea, Patricia Upna Orcid; Araiz Vega, Miguel Upna Orcid; Alegría Cía, Patricia; Astrain Ulibarrena, David Upna Orcid (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
    To improve the performance of vapour compression refrigeration cycles, the inclusion of a thermoelectric subcooler for low-medium power units has been the focus of recent studies due to its robustness, compactness and ...
  • AC coupled amplifier with a resistance multiplier technique for ultra-low frequency operation 

    Martincorena Arraiza, Maite Upna Orcid; Cruz Blas, Carlos Aristóteles de la Upna Orcid; Carlosena García, Alfonso Upna Orcid; López Martín, Antonio Upna Orcid (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
    This paper proposes a novel, tunable AC coupled capacitive feedback amplifier, exhibiting an ultra-low high pass corner frequency. This is accomplished by actively boosting the output resistive value of a MOS transistor ...

View more