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Ara es mostren els items 64-82 de 82

    • 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)
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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 ...

    • Reuse of the mobile communication antenna for FM reception 

      Picher, C.; Andújar Linares, Aurora; Anguera Pros, Jaume; Borja, C.; Puente Baliarda, Carles; Kahng, Sungtek (2011)
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      A conventional monopole antenna (λ/4) operating a t FM frequencies is too long for being integrated in a mobile phone. In order to avoid big external antennas or u sing the wire of the headsets, a new solution is ...

    • Self-similar current distribution on fractal Sierpinski antenna verified with infrared thermograms 

      González Arbesú, José María; Puente Baliarda, Carles; Romeu Robert, Jordi; Aguasca Solé, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 1999)
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      Experimental verification of the fractal Sierpinski antenna surface current distribution is presented. Measured data from an infrared camera agree with numerical data showing a self-similar behavior in the current density ...

    • Sistema lidar coherente para la monitorización de la velocidad de blancos sólidos 

      Rodríguez Gómez, Alejandro Antonio; Comerón Tejero, Adolfo; Mesalles, E; Aguasca Solé, Alberto; Puente Baliarda, Carles; Rocadenbosch Burillo, Francisco (Unión Científica Internacional de Radio, 1997)
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      Coherent Laser Radar (Lidar) Velocimeters (CLRV) can provide many advantages to solid target velocity monitoring, as compared to microwave-based systems. Narrower bandwidth, lower transmitted power and higher Doppler ...

    • Sistema lidar coherente para monitorización de velocidades de blancos sólidos 

      Rodríguez Gómez, Alejandro Antonio; Comerón Tejero, Adolfo; Aguasca Solé, Alberto; Puente Baliarda, Carles; Rocadenbosch Burillo, Francisco (1997)
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    • Sistema lidar elástico incoherente para sondeo de la atmósfera 

      Rocadenbosch Burillo, Francisco; Puente Baliarda, Carles; Comerón Tejero, Adolfo; Lansac, A; Fábregas, X; Rodríguez Gómez, Alejandro Antonio (Unión Científica Internacional de Radio, 1997)
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      The main features of the incoherent elastic lidar operating at the premises of the Department of Signal Theory and Communications' Electroinagnetic and Photonics Engineering Group, in the Campus fiord of the Polytechnic ...

    • Sistema lidar incoherente para la monitorización de velocidades de blancos sólidos 

      Rodríguez Gómez, Alejandro Antonio; Comerón Tejero, Adolfo; Andrés Alcalde, María Dolores; Tercero Vargas, Verónica; Puente Baliarda, Carles; Rocadenbosch Burillo, Francisco (Unión Científica Internacional de Radio, 1997)
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      Incoherent Lidar (Laser Radar) Systems based on diode laserscan provide many advantages to solid target distance and velocity monitoring, as compared to microwave-based systems. Narrower beamwidth, lower transmitted power ...

    • Small but long koch fractal monopole 

      Puente Baliarda, Carles; Romeu Robert, Jordi; Pous Andrés, Rafael; Ramis, J; Hijazo, A (Institution of Electrical Engineers, 1998-01)
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      A small but long wire fractal antenna based on the Koch curve is presented. Experimental and numerical results show that the antenna improves the features of a common linear monopole. The radiation resistance is increased ...

    • Small handset antenna for FM reception 

      Aguilar, David; Anguera, Jaume; Puente Baliarda, Carles; Ribó, Miquel (2008-10)
      Article
      Accés restringit per política de l'editorial
      A passive internal handset antenna for FM reception is presented using electromagnetic simulations as well as laboratory experiments. Received signal for the antennas have been demodulated and the quality of the audio ...

    • The Hilbert monopole revisited 

      Sanz, Ivan; Anguera Pros, Jaume; Andújar Linares, Aurora; Puente Baliarda, Carles; Borja, C. (Institute of Electrical and Electronics Engineers (IEEE), 2010)
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      A comparison between the resonant performance of the third iteration Hilbert monopole and a spiral shaped one of the same size and resonant frequency is presented. Quality factor, bandwidth, efficiency and radiation patterns ...

    • The Koch monopole: a small fractal antenna 

      Puente Baliarda, Carles; Romeu Robert, Jordi; Cardama Aznar, Ángel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2000-11)
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      Fractal objects have some unique geometrical properties. One of them is the possibility to enclose in a finite area an infinitely long curve. The resulting curve is highly convoluted being nowhere differentiable. One such ...

    • The Sierpinski fractal bowtie patch: a multifracton-mode antenna 

      Montesinos, Gemma; Anguera Pros, Jaume; Puente Baliarda, Carles; Borja, C. (Institute of Electrical and Electronics Engineers (IEEE), 2002)
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      Miniature behaviour of microstrip antennas with Sierpinski bowtie geometry is investigated and the existence of fracton modes is studied. A fracton mode is a mode found at a higher frequency than the one obtained for the ...

    • Theoretical and practical experiments for a single antenna gain testing method. Application to wireless devices 

      Anguera, Jaume; Sanz, Alfonso; Ko, Young Ji; Borja, C.; Puente Baliarda, Carles; Soler, Jordi (2007-08)
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      A compact antenna gain measurement system suitable for wireless devices is presented. The method needs the antenna under test, a planar electric conductor, and a vector analyzer. It is possible to obtain the total gain ...

    • Variations on the fractal Sierpinski antenna flare angle 

      Puente Baliarda, Carles; Navarro Bernal, Manuel; Romeu Robert, Jordi; Pous Andrés, Rafael (Institute of Electrical and Electronics Engineers (IEEE), 1998)
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      A further investigation on the fractal multiband Sierpinski antenna is introduced. It is shown that a variation on the antenna's flare angle is translated into a shift of the operating bands, as well as into a change in ...