• Control automático de nivel (ALC) de un SSPA en banda Ka 

    Corbella Sanahuja, Ignasi; Purroy Martín, Francesc (1991)
    Text en actes de congrés
    Accés obert
    This communication describes the design of an Automatic Level Control (ALC) for the transmiter of a CODE (Co-operative Olympus Data Experiment) earth station. The goal of the ALC system is to keep constant the transmited ...
  • New Theoretical Analysis of the LRRM Calibration Technique for Vector Network Analyzers 

    Purroy Martín, Francesc; Pradell i Cara, Lluís (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-10-31)
    Accés obert
    In this paper, a new theoretical analysis of the four-standards line-reflect-reflect-match (LRRM) vector network-analyzer (VNA) calibration technique is presented. As a result, it is shown that the reference-impedance (to ...