Listar por autor "Rodríguez, J. A."

Mostrando ítems 1-6 de 6

    • Avoiding Interference in Planar Arrays through the Use of Artificial Neural Networks 

      Brégains, Julio; Dorado, Julián; Gestal, M.; Rodríguez, J. A.; Ares, F.; Pazos, A. (Institute of Electrical and Electronics Engineers, 2002-08)
      [Abstract] This article implements an artificial neural network to find, through computer simulation, the excitations of a square planar array. The array is composed of 52 uniformly spaced subarrays, and has a quasi- in ...

    • 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 ...

    • On the Multiplicity of Solutions of Taylor Linear Sources Generating Symmetrical Power Patterns with Filled Nulls 

      Brégains, Julio; Rodríguez, J. A.; Ares Pena, F. J.; Moreno Piquero, E. (Institute of Electrical and Electronics Engineers, 2004-12)
      [Abstract] As expressed in earlier works, if filled nulls are required in a power pattern generated by a Taylor line source, their corresponding roots must be complex. This leads to a multiplicity of solutions emerged from ...

    • Optimal Synthesis Of Circular Apertures Based On Ludwig Distributions 

      Brégains, Julio; Rodríguez, J. A.; Ares Pena, F. J.; Moreno Piquero, E. (Taylor & Francis, 2003-01)
      [Abstract] Ludwig distributions are a generalization of circular Taylor distributions that generate radiation patterns with wide-angle side lobe levels decaying faster than for Taylor patterns. In this paper we show that ...

    • Optimal Synthesis of Line Source Antennas Based On Rhodes Distributions 

      Brégains, Julio; Rodríguez, J. A.; Ares Pena, F. J.; Moreno Piquero, E. (Taylor & Francis, 2002)
      [Abstract] In this paper we show that by means of an appropriate optimization technique the zeros of Rhodes radiation patterns can be perturbed so as to improve or modify pattern and/or the aperture distribution characteristics ...

    • Very Fast Method to Synthesise Conformal Arrays 

      Fondevila, J.; Rodríguez, J. A.; Brégains, Julio; Moreno Piquero, E.; Ares Pena, F. J. (The Institution of Engineering and Technology, 2007-08-02)
      [Abstract] A very fast technique that allows the synthesising of arbitrary footprint patterns by using conformal arrays with many radiating elements is described. This method is based on a combination of Woodward-Lawson ...