Exploració per autor "Pous Andrés, Rafael"

Ara es mostren els items 5-24 de 28

    • Design and fabrication of coplanar YBCO structures on lithium niobate substrates 

      Rozan, Edouard; Collado Gómez, Juan Carlos; García, A.; O'Callaghan Castellà, Juan Manuel; Pous Andrés, Rafael; Fàbrega i Soler, Lluís; Rius Casals, Juan Manuel; Rubí, R.; Fontcuberta, Josep; Harackiewicz, F. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1999-06-30)
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      YBa2Cu3O7-δ (YBCO) with low RF losses has been successfully deposited onto lithium niobate (LNO) to improve the performance of electrooptic Mach-Zender modulators. Epitaxial, c-axis oriented superconducting YBCO thin films ...

    • Design and fabrication of coplanar YBCO structures on lithium niobate substrates 

      Rozan, Edouard; Collado Gómez, Juan Carlos; Garcia, Alfredo; O'Callaghan Castellà, Juan Manuel; Pous Andrés, Rafael; Fàbrega Sanchez, Lourdes; Rius Casals, Juan Manuel; Rubí, R.; Fontcuberta, J.; Harackiewicz, F. (1999-06)
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      YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// (YBCO) with low RF losses has been successfully deposited onto lithium niobate (LNO) to improve the performance of electrooptic Mach-Zender modulators. Epitaxial, c-axis oriented ...

    • Diseño asistido por ordenador de arrays de antenas microstrip en bandas X y K 

      Pous Andrés, Rafael; Ferrando Bataller, Miquel (Universidad Politécnica de Madrid (UPM), 1988)
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      In this paper, a CAD/CAM program for design and manufacturing of microstrip antenna array is presented. From basic antenna specifications, the program calculates all parameters and dimensions, and draws a mask, ready for ...

    • Efecto de la variación angular en el vértice de alimentación de la antena fractal de Sierpinski 

      Puente Baliarda, Carles; Navarro Bernal, Manuel; Romeu Robert, Jordi; Pous Andrés, Rafael (1997)
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    • Fractal design of multiband and low side-lobe arrays 

      Puente Baliarda, Carles; Pous Andrés, Rafael (1996-05)
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      Most array factor design techniques are highly dependent on the operating wavelength. In this paper, a novel technique based on fractal structures is described for multiband operation. The analysis is focused in two different ...

    • Fractal multiband antenna based on the sierpinski gasket 

      Puente Baliarda, Carles; Romeu Robert, Jordi; Pous Andrés, Rafael; García, X; Benítez, F (Institution of Electrical Engineers, 1996-01)
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      Experimental and computed results show a multiband behaviour over five bands for the new fractal Sierpinski antenna. Such a behaviour is based on the self-similarity properties of the antenna's fractal shape, which might ...

    • Full wave analysis of the image hybrid dielectric/hts resonator 

      Sans, C; O'Callaghan Castellà, Juan Manuel; Sancho, D; Pous Andrés, Rafael; Fontcuberta, J; Ji-Fuh, Liang; Guo-Chun, Liang (1997-12)
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      — An analysis of the image hybrid dielectric/hightemperature superconductor (HTS) resonator is carried out. A full-wave radial mode-matching method is used to obtain the electromagnetic fields inside the resonator for ...

    • Full wave analysis of the image hybrid dielectric/HTS resonator 

      Sans, C.; O'Callaghan Castellà, Juan Manuel; Sancho, D.; Pous Andrés, Rafael; Fontcuberta, Josep; Liang, Ji-fhu; Liang, Guo-chun (IEEE, 1997-12-31)
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      Accés obert
      An analysis of the image hybrid dielectric / high-temperature superconductor (HTS) resonator is carried out. A full-wave radial mode-matching method is used to obtain the electromagnetic fields inside the resonator for ...

    • Full wave analysis of the image hybrid dielectric/HTS resonator 

      Sans, C; O'Callaghan Castellà, Juan Manuel; Sancho, D; Pous Andrés, Rafael; Fontcuberta, J; Ji-Fuh, Liang; Guo-Chun, Liang (Institution of Electrical Engineers, 1997-06)
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      Accés obert
      An analysis of the image hybrid dielectric/HTS resonator is carried out. A full-wave radial mode-matching method is used to obtain the electromagnetic fields inside the resonator for single TE01 and dual HE11 modes. The ...

    • Full wave modelling of hts dual mode patch filters and staggered coupled-line filters 

      Flores, A; Collado, C; Sans, C; O'Callaghan Castellà, Juan Manuel; Pous Andrés, Rafael; Fontcuberta, J (1997-06)
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      In order to obtain high-power hzuidlirig, dual-nlode patch HTS filters have been analyzed through Green’s function rad desegmentation techniques. A precise circuit model has been obtained and applied to the filter design ...

    • Full wave modelling of hts dual mode patch filters and staggered coupled-line filters 

      Flores Jiménez, Alejandro; Collado Gómez, Juan Carlos; Sans, C.; O'Callaghan Castellà, Juan Manuel; Pous Andrés, Rafael; Fontcuberta, Josep (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-06-30)
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      In order to obtain high-power handling, dual-mode patch HTS filters have been analyzed through Green's function and desegmentation techniques. A precise circuit model has been obtained and applied to the filter design ...

    • Further insight into the measured equation of invariance EM theory 

      Mei, K.K.; Pous Andrés, Rafael; Prouty, M.D.; Liu, Y.W. (. IEEE AP-S SYMPOSIUM DIGEST, 1990)
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      The measured equation of invariance (MEI) is a concept in field computation which leads to the generation of local linear equations in lieu of absorption conditions to terminate finite difference or finite element equations. ...

    • Integral formulation of the measured equation of invariance: a novel sparse matrix boundary element method 

      Rius Casals, Juan Manuel; Pous Andrés, Rafael; Cardama Aznar, Ángel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1996-05-01)
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      A novel integral formulation of the measured equation of invariance method is derived from the reciprocity theorem and implemented for perfectly conducting (PEC) 2-D scattering problems. This formulation uses the electric ...

    • Measured equation of invariance: a new concept in field computations 

      Mei, K.K.; Pous Andrés, Rafael; Chen, Z.; Liu, Y.W.; Prouty, M.D. (1994-10)
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      Numerical computations of frequency domain field problems or elliptical partial differential equations may be based on differential equations or integral equations. The new concept of field computation presented in this ...

    • 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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    • 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)
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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 ...

    • 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 ...

    • 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 ...

    • 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 ...