Now showing items 1-8 of 8

  • Design and implementation of an Envelope tracking Power Amplifier using switched Amplifiers and slow Envelopes 

    Vizarreta Paz, Pedro Pablo (Universitat Politècnica de Catalunya, 2011-07-18)
    Master thesis
    Open Access
    English: This master thesis presents the design and implementation of an Envelope Tracking (ET) transmitter including an envelope amplifier based on switched power amplifiers and algorithms for slew-rate and bandwidth ...
  • Envelope tracking amplification with reduced slew-rate and bandwidth envelopes 

    Vizarreta Paz, Pedro Pablo; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Bertran Albertí, Eduardo; Berenguer Sau, Jordi; Gelonch Bosch, Antonio José; García, José Angel (Unión Científica Internacional de Radio, 2012)
    Conference report
    Restricted access - publisher's policy
    This paper presents an Envelope Tracking Pow- er Amplifier whose architecture includes a Hybrid Envelope Amplifier (HEA) and an algorithm to adapt the envelope’s characteristics to the HEA’s limitations. The HEA attempts ...
  • Hybrid envelope amplifier for envelope tracking power amplifier transmitters 

    Vizarreta Paz, Pedro Pablo; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2012)
    Conference report
    Restricted access - publisher's policy
    This paper presents an envelope tracking (ET) Power Amplifier (PA) whose architecture includes an efficient Envelope Amplifier (EA) and a bandwidth reduction algorithm suitable for real time applications. The EA consists ...
  • Implementación de un transmisor LINC en un procesador FPGA 

    Vizarreta Paz, Pedro Pablo; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Berenguer Sau, Jordi (2011)
    Conference report
    Open Access
  • Incremental behavioral modeling of envelope-dependent nonlinear distortion in dynamic supply power amplifiers 

    Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Vizarreta Paz, Pedro Pablo (Unión Científica Internacional de Radio, 2011)
    Conference report
    Open Access
    This paper presents behavioral modeling of an envelope tracking (ET) power amplifier (PA) excited by an slewrate limited envelope. In order to relax the slew-rate requirements of current efficient envelope amplifiers ...
  • Slew-rate and efficiency trade-off in slow envelope tracking power amplifiers 

    Vizarreta Paz, Pedro Pablo; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (2012-12-12)
    Article
    Restricted access - publisher's policy
    This paper presents a study on the trade-off between the envelope’s slew-rate and the drain efficiency when slower envelopes are considered to dynamically supply the power amplifier (PA). This paper discusses a method ...
  • Slew-rate and efficiency trade-off in slow envelope tracking power amplifiers 

    Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Vizarreta Paz, Pedro Pablo (2012)
    Conference report
    Restricted access - publisher's policy
    This paper presents a study on the trade-off between the envelope's slew-rate and the drain efficiency when slower envelopes are considered to dynamically supply the power amplifier (PA). This paper discusses a method to ...
  • Slew-rate limited envelopes for driving envelope tracking amplifiers 

    Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Vizarreta Paz, Pedro Pablo; Bertran Albertí, Eduardo (IEEE Microwave Theory and Techniques Society, 2011)
    Conference report
    Restricted access - publisher's policy
    This paper presents a practical application of a method for generating slew-rate limited envelopes in order to drive the dynamic supply of envelope tracking (ET) power amplifiers (PAs). The proposed method results useful ...