ListarGrupo de Tecnoloxía Electrónica e Comunicacións (GTEC) por tema "Dipole antenna arrays"

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    • Beam Reconfiguration of Linear Arrays Using Parasitic Elements 

      Rodríguez, J. A.; Trastoy, A.; Brégains, Julio; Ares Pena, F. J.; Franceschetti, G. (The Institution of Engineering and Technology, 2006-02-13)
      [Abstrac] An innovative method for linear arrays beam reconfiguration is presented. This pattern reconfigurability is achieved by a mechanical displacement of a parasitic array located in front of an active one. Two worked ...

    • Design of Reconfigurable Array Antennas With Minimum Variation of Active Impedances 

      Mahanti, G. K.; Das, S.; Chakrabarty, A.; Brégains, Julio; Ares Pena, F. J. (Institute of Electrical and Electronics Engineers, 2006-12)
      [Abstract] In this letter, the authors propose an optimization method based on the genetic algorithm (GA) to reconfigure a linear array of vertical half-wavelength dipole antennas to generate two patterns with minimum ...

    • Matrix Pseudo-Inversion Technique for Diagnostics of Planar Arrays 

      Brégains, Julio; Ares Pena, F. J.; Moreno Piquero, E. (The Institution of Engineering and Technology, 2005-01-06)
      [Abstract] It is shown, by means of numerical simulation, that the Moore-Penrose pseudoinverse of a matrix taken from an overdetermined system can be applied to retrieve the excitation distribution of a planar array of ...

    • Variation in Bandwidths Among Solutions to Shaped Beam Synthesis Problems Concerning Linear Arrays of Parallel Dipoles 

      Brégains, Julio; Ares Pena, F. J. (Institute of Electrical and Electronics Engineers, 2005-01)
      The problem of synthesizing a linear array generating a shaped beam pattern with M filled s has 2M alternative solutions. In this study we examined their bandwidths as regards compliance with pattern quality or input ...