• Active inductor-based tunable impedance matching network for RF power amplifier application 

      Saberkari, Alireza; Ziabakhsh, Saman; Martínez García, Herminio; Alarcón Cot, Eduardo José (2015-08)
      Article
      Accés obert
      This paper presents the use of a new structure of active inductor named cascoded flipped-active inductor (CASFAI) in a T-type high-pass tunable output matching network of a class-E RF power amplifier (RFPA) to control the ...
    • Algorithm for resonator parameter extraction from symmetrical and asymmetrical transmission responses 

      Krkotic, Patrick; Gallardo Moix, Queralt; Tagdulang, Nikki; Pont Montaner, Montserrat; O'Callaghan Castellà, Juan Manuel (IEEE Microwave Theory and Techniques Society, 2021-08)
      Article
      Accés obert
      We describe an algorithm capable of extracting the unloaded quality factor and the resonant frequency of microwave resonators from vector S-parameters. Both symmetrical (Lorentzian) and asymmetrical (Fano) transmission ...
    • Are space-filling curves efficient small antennas? 

      González Arbesú, José María; Blanch Boris, Sebastián; Romeu Robert, Jordi (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC., 2003-09-30)
      Article
      Accés obert
      The performance of space-filling curves used as small antennas is evaluated in terms of quality factor and radiation efficiency. The influence of their topology is also considered. Although the potential use of these ...
    • Characterization of CMOS-MEMS resonant pressure sensors 

      Banerji, Saoni; Fernández Martínez, Daniel; Madrenas Boadas, Jordi (2017-08-30)
      Article
      Accés obert
      IEEE Comprehensive characterization results of a CMOS-MEMS resonant pressure sensor are presented. We have extensively evaluated the key performance parameters of our device in terms of quality factor (Q) variations under ...
    • Textile antenna sensor in SIW technology for liquid characterization 

      El Gharbi, Mariam; Bozzi, M.; Fernández García, Raúl; Gil Galí, Ignacio (Multidisciplinary Digital Publishing Institute (MDPI), 2023-09-12)
      Article
      Accés obert
      This study showcases the creation of an innovative textile antenna sensor that utilizes a resonant cavity for the purpose of liquid characterization. The cavity is based on circular substrate integrated waveguide (SIW) ...
    • The Koch monopole: a small fractal antenna 

      Puente Baliarda, Carles; Romeu Robert, Jordi; Cardama Aznar, Ángel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2000-11)
      Article
      Accés obert
      Fractal objects have some unique geometrical properties. One of them is the possibility to enclose in a finite area an infinitely long curve. The resulting curve is highly convoluted being nowhere differentiable. One such ...