Now showing items 1-8 of 8

  • A contact-less small antenna characterization through impedance modulation 

    Monsalve Carcelen, Beatriz; Blanch Boris, Sebastián; Romeu Robert, Jordi; Jofre Roca, Lluís (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
    Conference report
    Open Access
    In smalls antennas S-parameters measurements are highly influenced by the measurement equipment as well as the environment. In order to avoid this inconvenience, a wireless and non-invasive characterization setup is required. ...
  • Analysis and reduction of the distortions induced by time-domain filtering techniques in network analyzers 

    Porrata-Dòria i Yagüe, Ramir de; Broquetas Ibars, Antoni; Martínez, Luís Fernando (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-08-31)
    Article
    Open Access
    The removal of isolation errors plays an essential role in the calibration process of radar scattering measurements. One of the most common techniques used for that purpose is time-domain filtering, also known as gating. ...
  • GRECO: graphical electromagnetic computing for RCS prediction in real time 

    Rius Casals, Juan Manuel; Ferrando Bataller, Miguel; Jofre Roca, Lluís (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1993-04-01)
    Article
    Open Access
    An innovative approach to computing the high-frequency radar cross sections (RCSs) of complex radar targets in real time, using a 3-D graphics workstation, is presented. The target (typically, an aircraft) is modeled with ...
  • High frequency radar cross section of complex objects in real time 

    Rius Casals, Juan Manuel; Vall-Llossera Ferran, Mercedes Magdalena (Institute of Electrical and Electronics Engineers (IEEE), 1991)
    Conference report
    Open Access
    It is shown that real-time RCS (radar cross section) computation is possible with a high-performance graphics workstation. Physical optics (PO) and physical theory of diffraction (PTD) approximation are computed using the ...
  • High-frequency RCS of complex radar targets in real time 

    Rius Casals, Juan Manuel; Ferrando Bataller, Miguel; Jofre Roca, Lluís (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1993-09-01)
    Article
    Open Access
    This paper presents a new and original approach for computing the high-frequency radar cross section (RCS) of complex radar targets in real time with a 3-D graphics workstation. The aircraft is modeled with I-DEAS solid ...
  • On the testing of the magnetic field integral equation with RWG basis functions in method of moments 

    Rius Casals, Juan Manuel; Úbeda Farré, Eduard; Parrón Granados, Josep (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-11-30)
    Article
    Open Access
    For electromagnetic analysis using method of moments (MoM), three-dimensional (3-D) arbitrary conducting surfaces are often discretized in Rao, Wilton and Glisson basis functions. The MoM Galerkin discretization of the ...
  • Real-time radar cross section of complex targets by physical optics graphical processing 

    Rius Casals, Juan Manuel; Ferrando Bataller, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 1990)
    Conference report
    Open Access
  • Spectral iterative algorithm for RCS computation in electrically large or intermediate perfectly conducting cavities 

    Rius Casals, Juan Manuel; Lozano Solsona, Angel; Cardama Aznar, Ángel; Jofre Roca, Lluís (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1994-06-01)
    Article
    Open Access
    A novel algorithm designed to compute efficiently and accurately the high-frequency electromagnetic scattering from open-ended waveguide cavities is presented. The cavity is converted into a stepped-waveguide model so that ...