• Concentric annular-ring microstrip antenna with circular polarization 

      Ramirez, M.; Parrón, Josep; González Arbesú, José María; Gemio, J. (2011)
      Article
      Accés restringit per política de l'editorial
      In this letter,we present a concentric annular-ring microstrip antenna that covers the bands of Galileo (E5a, E5b, E1, E2, L1), GPS (L1, L2, L5), and GLONASS (L1, L3). This microstrip antenna is fed by four apertures ...
    • Multiscale compressed block decomposition for fast direct solution of method of moments linear system 

      Heldring, Alexander; Rius Casals, Juan Manuel; Tamayo Palau, José María; Parrón, Josep; Úbeda Farré, Eduard (2011-02)
      Article
      Accés restringit per política de l'editorial
      The multiscale compressed block decomposition algorithm (MS-CBD) is presented for highly accelerated direct (non iterative) solution of electromagnetic scattering and radiation problems with the method of moments (MoM). ...