Now showing items 1-7 of 7

    • Multifrequency and multifunction metamaterial-loaded printed antennas 

      Herraiz Martínez, Francisco Javier; Segovia Vargas, Daniel; Ugarte Muñoz, Eduardo; García Muñoz, Luis Enrique; González Posadas, Vicente (InTech Europe (Rijeka, Croacia), 01/04/2010)
    • 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 ...
    • Patch antenna based on metamaterials for a RFID transponder 

      Ugarte Muñoz, Eduardo; Herraiz Martínez, Francisco Javier; González Posadas, Vicente; Segovia Vargas, Daniel (01/06/2008)
      In this paper a self-diplexed antenna is proposed for a RFID transponder application. The development cycle is divided into two stages: antenna design and filters design. The antenna is based on a square microstrip patch ...
    • 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 ...
    • Quad-frequency linearly-polarized and dual-frequency circularly-polarized microstrip patch antennas with CRLH loading 

      Segovia Vargas, Daniel; Herraiz Martínez, Francisco Javier; Ugarte Muñoz, Eduardo; García Muñoz, Luis Enrique; González Posadas, Vicente (01/01/2013)
      In this paper, a novel technique to develop multifrequency microstrip patch antennas with polarization diversity or circular polarization is presented. The proposed approach consists of exciting modes with orthogonal ...
    • Self-diplexed patch antennas based on metamaterials for active RFID systems 

      Herraiz Martínez, Francisco Javier; Ugarte Muñoz, Eduardo; González Posadas, Vicente; García Muñoz, Luis Enrique; Segovia Vargas, Daniel (01/05/2009)
      This paper presents a full duplex active RF identification system with arbitrary values for any of the two frequencies in the different radio links. First, the antennas proposed in this paper are based on linearly polarized ...