Exploració per autor "Borja, C."

Ara es mostren els items 1-20 de 24

    • 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)
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      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. ...

    • 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)
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      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, ...

    • 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)
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      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 ...

    • 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)
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      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)
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      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)
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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 ...

    • Antenna microstrip triplebanda basada en el triangulo fractal de Sierpinski 

      Anguera Pros, Jaume; Martínez, Enrique; Puente Baliarda, Carles; Borja, C.; Soler, Jordi (UPV, 2005)
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    • Bowtie microstrip patch antenna based on the Sierpinski fractal 

      Anguera Pros, Jaume; Puente Baliarda, Carles; Borja, C.; Montero, R. (Institute of Electrical and Electronics Engineers (IEEE), 2011)
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      The unique geometrical properties of fractals have been proven to be useful to design advanced antennas. Enhanced performance in terms of size, gain or multiband behaviour is observed in fractal-shaped antennas. Here, a ...

    • Broadband triple-frequency microstrip patch radiator combining a dual-band modified Sierpinski fractal and monoband antenna 

      Anguera, Jaume; Martinez-Ortigosa, Eduard; Puente Baliarda, Carles; Borja, C.; Soler, Jordi (2006-11)
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      Abstract—A triple-frequency antenna combining a dual-band and a monoband antenna with broadside radiation patterns is presented. The dual-band antenna is inspired in the Sierpinski fractal. Such a dual-band antenna is ...

    • Dual frequency broad-band stacked microstrip antenna using a reactive loading and a fractal-shaped radiating edge 

      Anguera, Jaume; Puente Baliarda, Carles; Borja, C.; Soler, J. (2007-07-02)
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      A dual-band enhanced-bandwidth microstrip antenna is presented with a frequency separation of f2/f1=1.37. In order to achieve the dual-frequency operation, a rectangular patch antenna is reactively loaded with a stub ...

    • Dual frequency broadband microstrip antenna with a reactive loading and stacked elements 

      Anguera, Jaume; Puente Baliarda, Carles; Borja, C. (2009)
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      A dual-band enhanced-bandwidth microstrip antenna is presented with a frequency separation of f2=f1 = 1:33. In order to achieve the dual-frequency operation, a rectangular patch is loaded with a stub at one of its radiating ...

    • Fractal multiband patch antenna 

      Borja, C.; Puente Baliarda, Carles; Romeu Robert, Jordi; Anguera Pros, Jaume (European Space Agency (ESA), 2000)
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      The multiband behaviour of the Sierpinski patch antenna is described in this paper. Experimental results show that the self similarity properties of the fractal shape are translated into its electromagnetic behaviour.

    • Fractal-shaped antennas and their application to GSM 900/1800 

      Puente Baliarda, Carles; Anguera Pros, Jaume; Romeu Robert, Jordi; Borja, C.; Navarro, Mónica; Soler, Jordi (2001)
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    • How much can be reduced the internal FM antenna of mobiles phones? 

      Borja, C.; Anguera Pros, Jaume; Puente Baliarda, Carles; Vergés, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2010)
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      The paper introduces both a new internal FM antenna for mobile phones based on the fractal Hilbert curve, and a new evaluation criterion for quantifying the quality of the signal received by the FM antenna of mobile phones. ...

    • Impact of the antenna technology and the antenna parameters on the performance of MIMO systems 

      Borja, C.; Algans, Albert; Royo, Marc; Anguera Pros, Jaume; Puente Baliarda, Carles (Institute of Electrical and Electronics Engineers (IEEE), 2003)
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    • Iterative network models to predict the performance of Sierpinski fractal antennas and networks 

      Borja, C.; Puente Baliarda, Carles (Institute of Electrical and Electronics Engineers (IEEE), 1999)
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      Two simple, fast numerical models to predict the input parameters of antennas and networks whose topologies are that of the Sierpinski gasket and carpet fractal shape, are introduced. These models are based on the same ...

    • 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)
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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 ...

    • 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 ...

    • 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 ...