Ara es mostren els items 1-20 de 83

  • Active zone self-similarity of fractal sierpinski antenna verified using infra-red thermograms 

    González, J.M.; Navarro Bernal, Manuel; Puente Baliarda, Carles; Romeu Robert, Jordi; Aguasca Solé, Alberto (Institution of Electrical Engineers, 1999-08)
    Article
    Accés obert
    The surface current distribution of a Sierpinski fractal antenna shows a self-similar behaviour determined by the self-similar properties of its geometry. The application of infra-red thermography to electromagnetic near ...
  • Advances in antenna technology for wireless handheld devices 

    Anguera Pros, Jaume; Andújar Linares, Aurora; Huynh, Minh-Chau; Orlenius, Charlie; Picher, Cristina; Puente Baliarda, Carles (2013)
    Article
    Accés obert
    The constant evolution of wireless handheld devices together with the apparition of multiple wireless communication systems fosters the antenna community to design new radiating and measurements systems capable of satisfying ...
  • Agrupación submuestreada operando en modo fractón utilizando antenas microstrip inspiradas en el fractal de Sierpinski 

    Anguera Pros, Jaume; Montesinos, Gemma; Puente Baliarda, Carles; Borja, C.; Soler, Jordi (Unión Científica Internacional de Radio (URSI), 2003)
    Text en actes de congrés
    Accés obert
    A high-directivity microstrip array using mul- tilevel elements based on a fractal geometry is theoretically compared with one using a circular patches. Within the same electrical area, the same directivity can be ...
  • A mechanism to electrically enlarge the ground plane of handset antennas: A bandwidth enhancement technique 

    Anguera, Jaume; Andújar Linares, Aurora; Puente Baliarda, Carles (2011-07)
    Article
    Accés restringit per política de l'editorial
    There is a need of developing new techniques for enhancing the bandwidth of handset antennas without increasing the antenna volume in order to incorporate more frequency bands into the cell phones. The technique to enhance ...
  • A microstrip array operating in a fracton mode [fractal geometry] 

    Anguera Pros, Jaume; Montesinos, Gemma; Puente Baliarda, Carles; Borja, C.; Soler, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2003)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    A high-directivity microstrip array using multilevel elements based on a fractal geometry is theoretically compared with one using a circular patches. Within the same electrical area, the same directivity can be obtained. ...
  • Análisis del comportamiento de antenas móviles multibanda en presencia del cuerpo humano 

    Risco, S.; Anguera Pros, Jaume; Andújar Linares, Aurora; Picher, Cristina; Puente Baliarda, Carles (Unión Científica Internacional de Radio (URSI), 2009)
    Text en actes de congrés
    Accés obert
    The great majority of wireless devices are used close to the human head. These changes the antenna performance compared to free space situation. The human head absorbs an amount of power from the antenna radiation. In ...
  • Análisis y diseño de monopolos acoplados para dispositivos móviles multibanda 

    Risco, Sergi; Anguera Pros, Jaume; Andújar, Aurora; Pérez, Antonio; Puente Baliarda, Carles (Unión Científica Internacional de Radio (URSI), 2008)
    Text en actes de congrés
    Accés obert
    A novel low profile planar antenna is proposed. The antenna presented is a coupled monopole antenna, comprising at least a driven element coupled with one or more parasitic elements. The design proposed is suitable to ...
  • Analysis of a multiband monopole handset antenna combined with a slotted ground plane 

    Picher, C.; Anguera Pros, Jaume; Bujalance, A.; Andújar Linares, Aurora; Puente Baliarda, Carles (2013-01-01)
    Article
    Accés restringit per política de l'editorial
    The ground plane of a handset device plays an important role in the radiation process. As a consequence, through a ground plane modification, it is possible to obtain a multiband performance while keeping small antenna ...
  • Analysis of a multiband monopole handset antenna combined with a slotted ground plane. 

    Picher, Cristina; Anguera Pros, Jaume; Bujalance Jurado, Adrián; Andújar Linares, Aurora; Puente Baliarda, Carles (2013-01-01)
    Article
    Accés restringit per política de l'editorial
    The ground plane of a handset device plays an importants role in radiations process. As a consequence, thorugh a ground plane modification, it is possible to obtain a multiband performance while keeping small antenna dimensions.
  • Analysis of fractal-shaped antennas using the multiperiodic travelling wave Vee model 

    Puente Baliarda, Carles; Soler, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    A novel analytical model to predict the radiation performance of the Sierpinski fractal multiband antenna is presented. The theoretical development allows one to accurately predict the antenna response to flare angle ...
  • Analysis of the human body on the radiation of FM handset antenna 

    Vergés, J.; Anguera, Jaume; Puente Baliarda, Carles; Aguilar, David (2009)
    Article
    Accés restringit per política de l'editorial
    A simple human body phantom model is proposed and used to demonstrate that the radiation efficiency of an internal handset antenna operating at the FM band can be improved for a particular holding position up to 10 dB. ...
  • Analysis of the specific absorption rate in handset antennas with slotted ground planes 

    Picher, Cristina; Anguera Pros, Jaume; Puente Baliarda, Carles; Kahng, Sungtek; Andújar Linares, Aurora (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Text en actes de congrés
    Accés obert
    The study of the interaction between human head and handset antennas should be taken into account since all the mobile phones have to guarantee a biological compatibility. This research analyzes several antennas with ...
  • An iterative model for fractal antennas: application to the Sierpinski gasket antenna 

    Puente Baliarda, Carles; Borja Borau, M.Carmen; Navarro Rodero, Mònica; Romeu Robert, Jordi (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2000-05-31)
    Article
    Accés obert
    A simple model that explains the behavior of the Sierpinski fractal antenna is presented. This model shows that the multiband behavior of the Sierpinski fractal antenna is a consequence of its fractal nature. The model is ...
  • An optimum method to design probe-fed single-layer single-path wideband microstrip antenna 

    Anguera Pros, Jaume; Puente Baliarda, Carles; Romeu Robert, Jordi; Borja, C.; Font, Gisela (European Space Agency (ESA), 2000)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    A simple electrical network for a Single Layer Microstrip Patch Antenna (SLMPA) and the feeding structure (coaxial probe and compensating capacitor) is proposed to predict the input impedance. The mathematical analysis ...
  • Antena microstrip dual en frecuencia basada en el triángulo fractal de Sierpinski 

    Anguera Pros, Jaume; Martinez, Enrique; Puente Baliarda, Carles; Borja, C.; Soler, Jordi (Unión Científica Internacional de Radio (URSI), 2004)
    Text en actes de congrés
    Accés obert
    A dual-frequency antenna based on the Sierpinski fractal with two parasitic patches to enhance the impedance bandwidth is presented. An electrical circuit model formed by RLC resonators is proposed to learn about the ...
  • Antenas fractales microstrip impresas en esponjas metalizables 

    Anguera Pros, Jaume; Daniel, Jean Pierre; Borja, C.; Mumbru, Josep; Puente Baliarda, Carles; Picher, Cristina; Leduc, Tiphanie; Van Roy, Peter (Unión Científica Internacional de Radio (URSI), 2009)
    Text en actes de congrés
    Accés obert
    Radiating elements are usually made of metallic materials which increase the antenna complexity and weight. In order to solve this drawback, an antenna manufacture process using metallized foams is presented. A microstrip ...
  • Antenna microstrip miniatura y de alta directividad basada en el fractal de Sierpinski 

    Puente Baliarda, Carles; Borja Borau, M. Carmen; Anguera Pros, Jaume (Unión Científica Internacional de Radio (URSI), 2011)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    he unique geometrical properties of fractals have been proven to be useful to design advanced antennas. Enhanced performance in terms of size, gain or multifre- quency behaviour is observed in fractal-shaped antennas. Here, ...
  • Antenna microstrip triplebanda basada en el triangulo fractal de Sierpinski 

    Anguera Pros, Jaume; Martínez, Enrique; Puente Baliarda, Carles; Borja, C.; Soler, Jordi (UPV, 2005)
    Text en actes de congrés
    Accés obert
  • A procedure to design wide-band electromagnetically-coupled stacked microstrip antennas based on a simple network model 

    Anguera Pros, Jaume; Puente Baliarda, Carles; Borja, C. (Institute of Electrical and Electronics Engineers (IEEE), 1999)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    It is well known that microstrip patch antennas have a poor bandwidth due to the small spacing between the patch and the ground plane. A stacked patch configuration has been demonstrated experimentally as a feasible solution, ...
  • A systematic method to design broadband matching networks 

    Andújar Linares, Aurora; Anguera Pros, Jaume; Puente Baliarda, Carles (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    Text en actes de congrés
    Accés obert
    The narrow bandwidth (BW) associated to small antennas featured by a high quality factor (Q) can be enhanced by the addition of a matching network. However, the impedance matching is a difficult and time-consuming process ...