Now showing items 1-20 of 139

    • A full textile capacitive woven sensor 

      Martínez Estrada, Marc; Ventura Casellas, Heura; Gil Galí, Ignacio; Fernández García, Raúl (Wiley, 2023-01-10)
      Article
      Open Access
      In this paper, a full textile capacitive woven sensor integrated over a textile substrate is presented. The sensor consists in an interdigitated capacitance prepared to measure moisture and/or presence detection. In order ...
    • A low-profile textile MIMO antenna using felt substrate for industrial, scientific and medical band 

      Ullah, Sana; Fernández García, Raúl; Gil Galí, Ignacio (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Conference lecture
      Restricted access - publisher's policy
      A low profile textile MIMO antenna design for Industrial scientific and medical bands at 5.8 GHz is presented. The design consists of 2 embroidered antennas based on vertical and horizontal strips with a shared partial ...
    • A new approach to modelling the impact of EMI on MOSFET DC behavior 

      Fernández García, Raúl; Gil Galí, Ignacio; Boyer, A.; BenDhia, S.; Vrignon, Bertrand (2011-12-12)
      Article
      Open Access
      A simple analytical model to predict the DC MOSFET behavior under electromagnetic interference (EMI) is presented. The model is able to describe the MOSFET performance in the linear and saturation regions under EMI disturbance ...
    • A new switching frequency modulation scheme for EMI reduction in multiconverter topology 

      Mon González, Juan; Gago Barrio, Javier; González Díez, David; Balcells Sendra, Josep; Fernández García, Raúl; Gil Galí, Ignacio (2009)
      Conference report
      Open Access
      This paper presents a modulation scheme in order to reduce conducted Electromagnetic Interference (EMI) generated by modular power converters with parallel topology. The proposed scheme is based on a combination of ...
    • A novel SWB antenna with triple band-notches based on elliptical slot and rectangular split ring resonators 

      Zhang, Xiaobo; Ur, Saeed; Cao, Qunsheng; Gil Galí, Ignacio; khan, Muhammad Irshad (2019-02-10)
      Article
      Open Access
      In this paper, a wideband antenna was designed for super-wideband (SWB) applications. The proposed antenna was fed with a rectangular tapered microstrip feed line, which operated over a SWB frequency range (1.42 GHz to 50 ...
    • A novel ultra-wide band wearable antenna under different bending conditions for electronic-textile applications 

      El Gharbi, Mariam; Martínez Estrada, Marc; Fernández García, Raúl; Ahyoud, Saida; Gil Galí, Ignacio (2020-05-05)
      Article
      Open Access
      This paper is devoted to a novel textile ultra-wideband (UWB) antenna for wearable applications. The antenna is designed and implemented on a felt textile substrate with attractive features such as a flexible full embroidered ...
    • A review of flexible wearable antenna sensors: design, fabrication methods, and applications 

      El Gharbi, Mariam; Fernández García, Raúl; Ahyoud, Saida; Gil Galí, Ignacio (Multidisciplinary Digital Publishing Institute (MDPI), 2020-08-27)
      Article
      Open Access
      This review paper summarizes various approaches developed in the literature for antenna sensors with an emphasis on flexible solutions. The survey helps to recognize the limitations and advantages of this technology. ...
    • A smart chair to monitor sitting posture by capacitive textile sensors 

      Martínez Estrada, Marc; Vuohijoki, Tiina; Poberznik, Anja; Shaikh, Asif; Virkki, Johanna; Gil Galí, Ignacio; Fernández García, Raúl (Multidisciplinary Digital Publishing Institute (MDPI), 2023-07-05)
      Article
      Open Access
      In this paper, a smart office chair with movable textile sensors to monitor sitting position during the workday is presented. The system consists of a presence textile capacitive sensor with different levels of activation ...
    • A smart textile system to detect urine leakage 

      Martínez Estrada, Marc; Gil Galí, Ignacio; Fernández García, Raúl (2021-05-17)
      Article
      Open Access
      In this paper a wearable system with a sensor embroidered on a textile substrate to detect urine leaks is presented. The system consists of a moisture textile capacitive sensor together with the signal conditioning and its ...
    • A wearable system to detect urine leakage based on a textile sensor. 

      Martínez Estrada, Marc; Fernández García, Raúl; Gil Galí, Ignacio (2020)
      Conference lecture
      Open Access
      In this work, a wearable system to detect urine leakage based on a textile sensor is proposed. The system consists of a capacitive sensor embroidered with a conductive yarn in a cotton/polyester substrate. A microcontroller ...
    • An alternative approach to model the internal activity of integrated circuits. 

      Berbel Artal, Néstor; Fernández García, Raúl; Gil Galí, Ignacio; Li, Binhong; BenDhia, S.; Boyer, A. (2012)
      Conference report
      Open Access
      This paper deals with the EMC modeling of integrated circuits and the standardized model IEC 62433-2 (Integrated Circuit Emission Model – Conducted Emission [1]). This standardized model has been applied into a basic digital ...
    • An alternative characterization method of PFET sub-threshold slope under NBTI stress 

      Fernández García, Raúl; Gil Galí, Ignacio (2010)
      Conference lecture
      Open Access
      The effects of negative bias temperature instability (NBTI) on the sub-threshold performance of a pFET have been investigated by means of experimental methods. Specifically, the sub-threshold slope under static and dynamic ...
    • An alternative method to develop embroidery textile strain sensors 

      Martínez Estrada, Marc; Gil Galí, Ignacio; Fernández García, Raúl (MDPI AG, 2021-11-13)
      Article
      Open Access
      In this paper, a method to develop embroidered textile strain resistive sensors is presented. The method is based on two overlapped zigzag conductive yarn patterns embroidered in an elastic textile. To demonstrate the ...
    • An alternative method to quantify the electromagnetic immunity based on the Weibull distribution 

      Fernández García, Raúl; Gil Galí, Ignacio (2013)
      Article
      Open Access
      It is accepted that the electromagnetic interference should be addressed with statistical analysis. Usually the impact of electromagnetic interference on different electronic samples is evaluated and the average immunity ...
    • An alternative wearable tracking system based on a low-power wide-area network 

      Fernández García, Raúl; Gil Galí, Ignacio (2017-03-14)
      Article
      Open Access
      This work presents an alternative wearable tracking system based on a low-power wide area network. A complete GPS receiver was integrated with a textile substrate, and the latitude and longitude coordinates were sent to ...
    • An embroidered passive textile RFID tag based on a T-matched antenna 

      El Bakkali, Mohamed; El Mrabet, Otman; Kanjaa, Mohammed; Gil Galí, Ignacio; Fernández García, Raúl (2021-12-21)
      Article
      Open Access
      This paper addresses the design and fabrication of an embroidered textile RFID tag antenna. The main feature of this design is that we have embroidered an RFID chip on the textile support which avoids the use of metallic ...
    • Analysis and characterization of coupled transmission lines loaded with complementary spiral resonators 

      Gil Galí, Ignacio; Fernández García, Raúl; Balcells Sendra, Josep (2011-02-21)
      Article
      Restricted access - publisher's policy
      In this study, the behaviour of coupled microstrip transmission lines loaded with complementary spiral resonators (CSRs) is analysed in depth. CSRs are constitutive elements for the synthesis of metamaterials with negative ...
    • Analysis of PIFA antenna coupling in nearby traces and reduction with CSRRs in PCB at 2.45 GHz 

      Gil Galí, Ignacio; Fernández García, Raúl (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Open Access
      The electromagnetic coupling of a conventional planar inverted-F antenna (PIFA) antenna in the nearby layout traces is investigated in the 2.45 GHz industrial, scientific and medical radio band. The impact of a complementary ...
    • Analysis on the effects of the human body on the performance of wearable textile antenna in substrate integrated waveguide technology 

      El Gharbi, Mariam; Ahyoud, Saida; Aknin, Noura; Gil Galí, Ignacio; Fernández García, Raúl (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Open Access
      A wearable textile circular ring slot antenna based on a substrate integrated waveguide cavity is presented. In this paper, the focus is on studying and understanding the technical behavior of the SIW textile antenna when ...
    • Análisis estructural de óxidos de grafeno (GO) y óxidos de grafeno reducidos (rGO) 

      Colom Fajula, Xavier; Cañavate Ávila, Francisco Javier; Lis Arias, Manuel José; Sanjuan, Gemma; Gil Galí, Ignacio (2020-07-01)
      Article
      Open Access
      El artículo caracteriza a nivel estructural, morfológico y térmico tres muestras distintas de óxido de grafeno comerciales (AGO, EGO y CGO) obtenidas mediante el método Hummers, las cuales han sido posteriormente reducidas ...