Browsing by Author "Fernández García, Raúl"
Now showing items 1-20 of 140
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A full textile capacitive woven sensor
(Wiley, 2023-01-10)
Article
Open AccessIn 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
(Institute of Electrical and Electronics Engineers (IEEE), 2023)
Conference lecture
Restricted access - publisher's policyA 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 Modified Charge Pumping Method for Measuring Interface States Up to the Ghz Range
(2009-06-18)
Article
Restricted access - publisher's policyIn this paper we present a modified on-chip charge pumping method for measuring the interface states in ultra-thin gate oxide complementary metal-oxide-semiconductor (CMOS) technology. The proposed method, which characterizes ... -
A new approach to modelling the impact of EMI on MOSFET DC behavior
(2011-12-12)
Article
Open AccessA 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
(2009)
Conference report
Open AccessThis 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 noncontact differential method for current and voltage measurements on a printed trace simultaneously
(IEEE Microwave Theory and Techniques Society, 2024)
Article
Open AccessNoncontact measurement of current and voltage poses various challenges in different applications. In this article, a novel differential reconstruction method for noncontact and simultaneous measurements of current and ... -
A novel ultra-wide band wearable antenna under different bending conditions for electronic-textile applications
(2020-05-05)
Article
Open AccessThis 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
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-08-27)
Article
Open AccessThis 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
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-07-05)
Article
Open AccessIn 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
(2021-05-17)
Article
Open AccessIn 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.
(2020)
Conference lecture
Open AccessIn 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.
(2012)
Conference report
Open AccessThis 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
(2010)
Conference lecture
Open AccessThe 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
(MDPI AG, 2021-11-13)
Article
Open AccessIn 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
(2013)
Article
Open AccessIt 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
(2017-03-14)
Article
Open AccessThis 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
(2021-12-21)
Article
Open AccessThis 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
(2011-02-21)
Article
Restricted access - publisher's policyIn 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
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Conference report
Open AccessThe 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
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
Conference report
Open AccessA 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 ...
