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    • Multifrequency printed antennas loaded with metamaterial particles 

      Segovia Vargas, Daniel; Herraiz Martínez, Francisco Javier; Ugarte Muñoz, Eduardo; Montero de Paz, Javier; González Posadas, Vicente; García Muñoz, Luis Enrique (01/06/2009)
      This paper provides a review of printed antennas loaded with metamaterial particles. This novel technique allows developing printed antennas with interesting features such as multifrequency (simultaneous operation over two ...

    • Multifrequency self-diplexed single patch antennas loaded with split ring resonators 

      Montero de Paz, Javier; Ugarte Muñoz, Eduardo; Herraiz Martínez, Francisco Javier; González Posadas, Vicente; García Muñoz, Luis Enrique; Segovia Vargas, Daniel (01/03/2011)
      In this paper a novel approach to design multifrequency self-diplexed single patch antennas is proposed. This approach is based on a square microstrip patch antenna loaded with split ring resonators (SRRs). The working ...

    • Multifrequency single patch antennas loaded with split ring resonators 

      Montero de Paz, Javier; Ugarte Muñoz, Eduardo; Herraiz Martínez, Francisco Javier; Segovia Vargas, Daniel (Sin editorial (Barcelona, España), 12/04/2010)
      Multifrequency antennas with low frequency ratio between frequencies would be desirable for systems that work on different frequency bands which are very close. In this paper multifrequency single patch antennas loaded ...

    • Planar superstrate for dual-frequency RHCP-LHCP array 

      Ugarte Muñoz, Eduardo; Herraiz Martínez, Francisco Javier; Montero de Paz, Javier; García Muñoz, Luis Enrique; Segovia Vargas, Daniel (01/06/2011)
      Patch antennas are low profile, lightweight and most suitable for aerospace and mobile applications. In recent years Fabry-Pérot cavities and meta-surfaces have been used as superstrates to improve the radiation performance ...

    • Planar superstrate made with meta-material particles for dual-polarized dual-frequency antennas and circularly polarized antennas 

      Ugarte Muñoz, Eduardo; Herraiz Martínez, Francisco Javier; Montero de Paz, Javier; García Muñoz, Luis Enrique; Segovia Vargas, Daniel (Sin editorial (Toronto, Canadá), 11/07/2010)
      In recent years, two-dimensional arrangements of metamaterial particles have been used as superstrates to overcome the main disadvantages of planar antennas (mainly patch antennas or printed dipoles) such as, low directivities ...