Now showing items 1-3 of 3

    • Compact, wideband impedance tuner using a three-line-microstrip structure 

      Heredia Vega, Julio César; Ribó Pal, Miquel; Pradell i Cara, Lluís (Institution of Electrical Engineers, 2018-05-03)
      Article
      Open Access
      A novel three-line-microstrip compact impedance tuner is presented. It is based on a multimodal structure wherein six variable capacitances, implemented with two parallel-connected varactors each, create multiple interactions ...
    • Miniature switchable millimeter-wave BiCMOS low-noise amplifier at 120/140 GHz using an HBT switch 

      Heredia, F.-Javier (Francisco Javier); Ribó Pal, Miquel; Pradell i Cara, Lluís; Wipf, Selin Tolunay; Göritz, Alexander; Wietstruck, Matthias; Wipf, Christian; Kaynak, Mehmet (2019-10-01)
      Article
      Open Access
      A 120–140 GHz frequency-switchable, very compact low-noise amplifier (LNA) fabricated in a 0.13 µm SiGe:C BiCMOS technology is proposed. A single radio-frequency (RF) switch composed of three parallel hetero junction bipolar ...
    • RF-MEMS switches designed for high-performance uniplanar microwave and mm-wave circuits 

      Pradell i Cara, Lluís; Girbau Sala, David; Ribó Pal, Miquel; Casals Terré, Jasmina; Lázaro Guillén, Antonio; Contreras Lizárraga, Adrián; Llamas Morote, Marco Antonio; Heredia Vega, Julio César; Giacomozzi, Flavio; Margesin, Benno (IntechOpen, 2018-07-18)
      Part of book or chapter of book
      Open Access
      Radio frequency microelectromechanical system (RF-MEMS) switches have demonstrated superior electrical performance (lower loss and higher isolation) compared to semiconductor-based devices to implement reconigurable microwave ...