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Ara es mostren els items 50-69 de 82

    • Metallized foams for fractal-shaped microstip antennas 

      Anguera, Jaume; Daniel, Jean Pierre; Borja, C.; Mumbru, Josep; Puente Baliarda, Carles; Leduc, T.; Laeveren, Nancy; Van Roy, P (2008-12)
      Article
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      An antenna manufacturing process using metallized foams is presented. A microstrip-patch antenna, inspired by the Koch island geometry, embedded in a rectangular cavity is built and tested. All the metallic parts of the ...

    • Microstrip fractal-shaped antennas: a review 

      Anguera Pros, Jaume; Borja, C.; Puente Baliarda, Carles (Institute of Electrical and Electronics Engineers (IEEE), 2007)
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      A review of electromagnetic features of microstrip antennas using fractal geometries is presented divided in four main areas: multi-frequency antennas, combination of multi- frequency with broadband techniques, high-directivity ...

    • Miniature monopole antenna based on the fractal Hilbert curve 

      Anguera Pros, Jaume; Puente Baliarda, Carles; Soler, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2002)
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      A novel miniature antenna based on the fractal Hilbert geometry is presented. As the fractal iteration increases, the antenna becomes electrically smaller at a higher rate than any other fractal geometry presented up to ...

    • Miniature Wideband stacked microstrip patch antenna based on the sierpinski fractal geometry 

      Romeu Robert, Jordi; Anguera Pros, Jaume; Puente Baliarda, Carles; Borja Borau, Carmen (Institute of Electrical and Electronics Engineers (IEEE), 2000)
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      The main interest in the design of a miniature microstrip patch antenna (MPA) is its small size in conjunction with the well-known advantages of a MPA (cost, profile, weight). However there is a big constraint on the ...

    • 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)
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      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 ...

    • Mod-P Sierpinski fractal multiband antenna 

      Soler, Jordi; Romeu Robert, Jordi; Puente Baliarda, Carles (Institute of Electronics, Information and Communications Engineers (IEICE), 2013)
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      Multiband antennas have an important role in the incoming telecommunication systems. A new set of multiband antennas based on fractal geometry, referred as mod-p Sierpinski gaskets is presented. These novel designs ...

    • Modelo sencillo para el estudio de los parámetros de entrada de una antena fractal de Sierpinski 

      Borja Borau, Carmen; Puente Baliarda, Carles; Medina Sierra, Agustín; Romeu Robert, Jordi; Pous Andrés, Rafael (1997)
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    • Modificación de la antena de Sierpinski para el ajuste de las bandas operativas 

      Navarro Bernal, Manuel; Puente Baliarda, Carles; Bartolomé, R; Romeu Robert, Jordi; Pous Andrés, Rafael (1997)
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    • Multi-band handset antenna combining a PIFA, solts, and ground plane modes 

      Cabedo, Arnau; Anguera, Jaume; Picher, C.; Ribó, Miquel; Puente Baliarda, Carles (2009)
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      A multiband handset antenna combining a PIFA and multiple slots on a ground plane is presented. It is shown by means of simulations that the slots on the ground plane have a double function: to tune the ground plane resonance ...

    • Multiband handset antenna behaviour by combining pifa and a slot radiators 

      Anguera Pros, Jaume; Sanz, Ivan; Mumbrú, Josep; Puente Baliarda, Carles (Institute of Electrical and Electronics Engineers (IEEE), 2007)
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      A technique for the handset antenna field combining a PIFA and a slot in presented. The antenna concept features a small footprint and multi-band operation which is required for the new generation of thin profile handset phones.

    • Multiband handset antenna with a parallel excitation of PIFA and slot radiators 

      Anguera, Jaume; Sanz, Ivan; Mumbru, Josep; Puente Baliarda, Carles (2010-02)
      Article
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      A handset antenna technique combining a parallel excitation of a PIFA and a slot is presented. The number of frequency bands is given by the sum of bands given per each radiator which can be controlled independently. ...

    • 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)
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      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 ...

    • Multiband properties of a fractal tree antenna generated by electrochemical deposition 

      Puente Baliarda, Carles; Claret Bonet, Josep; Romeu Robert, Jordi; López-Salvans, M Q; Pous Andrés, Rafael (Institution of Electrical Engineers, 1996-12)
      Article
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      Experimental results on a fractal tree-like antenna are reported. The fractal structure is generated by electrochemical deposition. The antenna presents a multiband behaviour with a denser band distribution than the ...

    • Multiple parasitic microstrip antenna for multifrequency behaviour 

      Anguera Pros, Jaume; Font, Gisela; Puente Baliarda, Carles; Borja, C.; Soler, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2003)
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      A multifrequency microstrip patch antenna comprising a driven patch and a plurality of parasitic elements placed underneath a driven patch is proposed. The antenna features a multifrequency behavior (5 operating band) with ...

    • Obtención de imágenes ISAR de blancos móviles 

      Puente Baliarda, Carles; Broquetas Ibars, Antoni; Jofre Roca, Lluís (1992)
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      A new method for motion compensation has been developed for radar imaging of moving targets (ISAR). Phase shifts (due to target motion) among adjacent pulses from a STEPPED FREQUENCY signal, are removed with a parabolic ...

    • On the behavior of the Sierpinski multiband fractal antenna 

      Puente Baliarda, Carles; Romeu Robert, Jordi; Pous Andrés, Rafael; Cardama Aznar, Ángel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-04-30)
      Article
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      The multiband behavior of the fractal Sierpinski antenna is described. Due to its mainly triangular shape, the antenna is compared to the well-known single-band bow-tie antenna. Both experimental and numerical results show ...

    • On the radiation psttern of the L-shaped wire antenna 

      Andújar, A.; Anguera, Jaume; Puente Baliarda, Carles; Pérez, A. (2009)
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    • Perturbation of the sierpinski antenna to allocate the operating bands 

      Puente Baliarda, Carles; Romeu Robert, Jordi; Bartolomé, R; Pous Andrés, Rafael (Institution of Electrical Engineers, 1996-11)
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      A scheme for modifying the spacing between the bands of the Sierpinski antenna is introduced. Experimental results of two novel designs of fractal antennas suggest that the fractal structure can be perturbed to enable the ...

    • Premio EITP'98 para las Antenas Fractales 

      Prieto, Carlos; Puente Baliarda, Carles; Romeu Robert, Jordi; Cardama Aznar, Ángel (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 1999)
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    • Propiedades de barrido de haz en agrupaciones de antenas utilizando elementos inspirados en el fractal de Sierpinski 

      Anguera Pros, Jaume; Prieto, Sergio; Puente Baliarda, Carles; Borja, C.; Soler, Jordi (Unión Científica Internacional de Radio (URSI), 2004)
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      A microstrip array using high-directivity Sierpinski fractal-inspired elements (under-sampled array) needs less elements than an array using elements operating at the fundamental mode (conventional array). Within the same ...