Exploració per autor "Picher, Cristina"

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    • 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 ...

    • 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 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
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      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 ...

    • 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
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      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 ...

    • 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
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      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 ...

    • Compact multiband antenna system for smartphone platforms 

      Anguera Pros, Jaume; Picher, Cristina; Andújar Linares, Aurora; Puente Baliarda, Carles; Kahng, Sungtek (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Smartphone are gainin interest due to its multifunctional capabilities. In order to facilitate the integration of an antenna system, a compact radiating system comprising non-resonant cubic elements radiating to provide ...

    • Concentrated ground plane booster antenna technology for multiband operation in handset devices 

      Picher, Cristina; Anguera Pros, Jaume; Andújar Linares, Aurora; Puente Baliarda, Carles; Bujalance Jurado, Adrián (2014-12-01)
      Article
      Accés obert
      The current demand in the handset antenna field requires multiband antennas due to the existence of multiple communication standards and the emergence of new ones. At the same time, antennas with reduced dimensions are ...

    • Conformación del diagrama de radiación de un monopolo en L 

      Andújar Linares, Aurora; Anguera Pros, Jaume; Puente Baliarda, Carles; Picher, Cristina (Unión Científica Internacional de Radio (URSI), 2009)
      Text en actes de congrés
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      The typical radiation pattern of an L-monopole antenna can be easily modified by changing the geometrical characteristics of the structure. To shape a specific radiation pattern through a basic structure becomes an interesting ...

    • Diseño de una antena multibanda con ranuras en el plano de masa: una técnica para facilitar la integración de la línea de alimentación 

      Picher, Cristina; Anguera Pros, Jaume; Andújar Linares, Aurora; Puente Baliarda, Carles; Risco, Sergi; Kahng, Sungtek (Unión Científica Internacional de Radio (URSI), 2009)
      Text en actes de congrés
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      The integration of transmission lines is a difficult task due to the presence of slots. In order to facilitate the integration of the feeding transmission line which connects the antenna with the RF-module, this research ...

    • Influence of handset components into the behavior of a handset antenna in a slotted ground plane 

      Bujalance Jurado, Adrián; Picher, Cristina; Anguera Pros, Jaume; Andújar Linares, Aurora; Puente Baliarda, Carles (2013-08)
      Article
      Accés restringit per política de l'editorial
      The influence of handset components needs to be analyced in order to optimize the integration of the antenna into a handset device.

    • Mitigation of the finger loading effect in handset antennas 

      Anguera Pros, Jaume; Andujar, Aurora; Camps, Albert; Puente Baliarda, Carles; Picher, Cristina (Institute of Electrical and Electronics Engineers (IEEE), 2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The effect of the human body over the radiation of handset antennas is a critical issue that have to be considered to ensure a good handset antenna performance. Among the human body effect, the finger is of particular ...

    • Multiband handset antennas by means of groundplane modification 

      Anguera Pros, Jaume; Cabedo, Arnau; Picher, Cristina; Sanz, Ivan; Ribó, Miquel; Puente Baliarda, Carles (Institute of Electrical and Electronics Engineers (IEEE), 2007)
      Text en actes de congrés
      Accés obert
      A technique consisting in designing the groundplane of a handset antenna is presented. The technique is applied to PIFA antennas to show how the bandwidth can be enhanced. Particularly, a dual-band PIFA operating at GSM900 ...