Exploració per autor "Fernández García, Raúl"Més informacióMés informació

Ara es mostren els items 86-105 de 137

    • Flexible PIFA antenna design for wireless sensor networks in wearable healthcare applications 

      Gil Galí, Ignacio; Fernández García, Raúl (The Electromagnetics Academy., 2006)
      Comunicació de congrés
      Accés obert
      In this work a flexible wearable PIFA antenna has been designed in order to operate according to the Bluetooth v4 standard (2400-2483.5 MHz) in healthcare applications designed for wireless sensor networks. The substrate ...

    • Impact of conductive yarns on an embroidery textile moisture sensor 

      Martínez Estrada, Marc; Moradi, Bahareh; Fernández García, Raúl; Gil Galí, Ignacio (Multidisciplinary Digital Publishing Institute (MDPI), 2019-02-27)
      Article
      Accés obert
      In this work, two embroidered textile moisture sensors are characterized with three different conductive yarns. The sensors are based on a capacitive interdigitated structure embroidered on a cotton substrate with an ...

    • Impact of manufacturing variability and washing on embroidery textile sensors 

      Martínez Estrada, Marc; Moradi, Bahareh; Fernández García, Raúl; Gil Galí, Ignacio (Multidisciplinary Digital Publishing Institute (MDPI), 2018-11-08)
      Article
      Accés obert
      In this work, an embroidered textile moisture sensor is presented. The sensor is based on a capacitive interdigitated structure embroidered on a cotton substrate with an embroidery conductor yarn composed of 99% pure silver ...

    • Impact of NBTI on EMC behaviours of CMOS inverter 

      Fernández García, Raúl; Berbel Artal, Néstor; Gil Galí, Ignacio; Morata Cariñena, Marta (2010-04-12)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper the Electromagnetic Robustness (EMR) of a CMOS inverter has been analyzed when the pFETs are submitted to negative bias temperature instability (NBTI). The impact of pFET and CMOS inverter has been experimentally ...

    • Impact of temperature on the electromagnetic compatibility susceptibility of operational amplifiers 

      Fernández García, Raúl; Gil Galí, Ignacio (2012)
      Comunicació de congrés
      Accés obert
      In this paper the impact of temperature on the electromagnetic susceptibility of operational amplifiers at different frequencies is presented. The IEC 62132-4 direct power injection standard has been used with several ...

    • Impact of temperature on the electromagnetic susceptibility of operational amplifiers 

      Fernández García, Raúl; Gil Galí, Ignacio (2012)
      Comunicació de congrés
      Accés obert
      In this paper, the impact of temperature on the electromagnetic susceptibility of operational ampli¯ers at di®erent frequencies is presented. The IEC 62132-4 direct power injection standard has been used with several ...

    • Impact of yarn on a textile UHF RFID TAG 

      Fernández García, Raúl; Martínez Estrada, Marc; Bonache Albacete, Jordi; Gil Galí, Ignacio; Luo, Chengyang (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      An embroidered textile UHF RFID is proposed and characterized. The TAGs are based on a ‘T-match’ structure embroidered on a polyester textile substrate with three different conductive yarns. The input impedance and read ...

    • Judo ukemis: a tool for protecting the health and quality of life of children. Safe fall-safe school 

      del Castillo Andrés, Oscar; Campos Mesa, Maria del Carmen; Castañeda Vázquez, Carolina; Fernández García, Raúl; Genovesi, E.; Krstulovic, S.; Kuvacic, G.; Lira, Miguel Angel; Morvay Sei, K.; Pastor Vicedo, Juan Carlos; Toronjo Hornillo, L. (University of Zagreb, 2023)
      Text en actes de congrés
      Accés obert

    • Meander microwave bandpass filter on a flexible textile substrate 

      Moradi, Bahareh; Fernández García, Raúl; Gil Galí, Ignacio (2018-12-21)
      Article
      Accés obert
      This paper presents an alternative process to fabricate flexible bandpass filters by using an embroidered yarn conductor on an electronic textile. The novelty of the proposed miniaturized filter is its complete integration ...

    • Measurement of the environmental broadband electromagnetic waves in a mid-size European city 

      Fernández García, Raúl; Gil Galí, Ignacio (2017-07-26)
      Article
      Accés obert
      In this paper, the level of exposure to broadband radiofrequency electromagnetic field in a mid-size European city was evaluated in accordance with the International Commission on Non-ionizing Radiation Protection guidelines ...

    • Microwave resonators for wearable sensors design: a systematic review 

      Royo Roig, Iris; Fernández García, Raúl; Gil Galí, Ignacio (Multidisciplinary Digital Publishing Institute (MDPI), 2023-11-10)
      Article
      Accés obert
      The field of flexible electronics is undergoing an exponential evolution due to the demand of the industry for wearable devices, wireless communication devices and networks, healthcare sensing devices and the technology ...

    • Modeling technique of the conducted emission of integrated circuit under different temperatures 

      Berbel Artal, Néstor; Fernández García, Raúl; Gil Galí, Ignacio (2015)
      Article
      Accés obert
      In this paper the temperature impact on conducted emissions of ICs up to 3 GHz has been analyzed. The electromagnetic conducted emissions of a commercial IC clock generator have been characterized and modelled from 293 K ...

    • Modeling tunable band-pass filters based on RF-MEMS metamaterials 

      Morata Cariñena, Marta; Gil Galí, Ignacio; Fernández García, Raúl (2011-02-01)
      Article
      Accés obert
      This work describes progress toward designing and modeling reconfigurable band-pass filters based on RF microelectromechanical systems (RF-MEMS) metamaterials. A device consisting of a coplanar waveguide structure that ...

    • Modelling and experimental verification of the impact of negative bias temperature instability on CMOS inverter 

      Berbel Artal, Néstor; Fernández García, Raúl; Gil Galí, Ignacio (2009-10)
      Comunicació de congrés
      Accés obert
      The effects of negative bias temperature instability (NBTI) on the performance of a CMOS inverter have been investigated by means of both simulation and experimental methods. The simulation of NBTI effects on CMOS inverter ...

    • Modulation technique to reduce EMI in power multiconverters 

      Mon González, Juan; Gago Barrio, Javier; González Díez, David; Balcells Sendra, Josep; Fernández García, Raúl; Bogónez Franco, Francisco; Gil Galí, Ignacio (2009-04-05)
      Article
      Accés obert
      A new technique to reduce EMI in modular power multiconverters is described. The technique is based on a combination of switching frequency modulation and a variable delay between communication signals of the single ...

    • Multiband EMI filter based on metamaterials 

      Gil Galí, Ignacio; Fernández García, Raúl; Gago Barrio, Javier; Balcells Sendra, Josep (2010-05-10)
      Article
      Accés obert
      A novel compact multiband microstrip EMI filter based on metamaterials is presented. The filter is implemented by means of split-rings resonators and complementary spiral sub-wavelength resonators, conveniently coupled to ...

    • Mutual coupling reduction in a textile ultra-wide band MIMO antenna 

      Yilmazer, Nuri; El Gharbi, Mariam; Fernández García, Raúl; Gil Galí, Ignacio (Taylor & Francis Group, 2023-06-05)
      Article
      Accés restringit per política de l'editorial
      This paper presents a mutual coupling reduction technique in a textile ultra-wideband (UWB) multiple-input–multiple-output (MIMO) antenna system implemented on a textile substrate. The compact textile UWB MIMO antenna ...

    • Optimized passive devices for low-power LNA design 

      Gil Galí, Ignacio; Fernández García, Raúl; Sieiro, Javier; López-Villegas, José María (2010)
      Text en actes de congrés
      Accés obert
      This paper addresses the design of high-Q passive inductors and differential transformers in a low-power lownoise amplifier (LNA) application. The passives quality in resonant LC tanks as well as in the matching network ...

    • Parametric design of stop band pass filter based on RF metamaterials in LTCC technology 

      Morata Cariñena, Marta; Gil Galí, Ignacio; Fernández García, Raúl (2012)
      Comunicació de congrés
      Accés obert
      This paper presents a novel approach to design a parametric RF stop band pass ¯lter based on Low Temperature Co-¯red Ceramic (LTCC) Technology. The LTCC technology enables to miniaturize and development compact structures ...

    • Parametric design of stop-band-filter based on RF metamaterials in LTCC technology 

      Morata Cariñena, Marta; Gil Galí, Ignacio; Fernández García, Raúl (2012)
      Comunicació de congrés
      Accés obert
      This paper presents a novel approach to design a parametric RF stop band pass filter based on Low Temperature Cofired Ceramic (LTCC) Technology. The LTCC technology enables to miniaturize and ...