Now showing items 1-12 of 12

  • Accuracy considerations in microstrip surface impedance measurements 

    O'Callaghan Castellà, Juan Manuel; Sans, C.; Collado Gómez, Juan Carlos; Canet Grau, Eduard; Pous Andrés, Rafael; Fontcuberta, Josep (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-06-30)
    Article
    Open Access
    An approach is proposed for the design, measurement and data extraction of superconducting microstrip resonators used in determination of surface resistance and penetration depth. Major sources of error are analyzed and ...
  • Accuracy considerations in surface impedance measurements 

    O'Callaghan Castellà, Juan Manuel; Sans, C; Pous Andrés, Rafael; Collado Gómez, Juan Carlos; Canet, E (1997-06)
    Article
    Open Access
    An approach is proposied for the design, measurement and data extraction of superconducting microstrip resonators used in determination of surface resistance and penetration depth. Major sources of error are analyzed and ...
  • 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)
    Article
    Open Access
    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)
    Article
    Open Access
    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)
    Conference report
    Open Access
    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 ...
  • 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)
    Article
    Open Access
    — 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, J; Ji-Fuh, Liang; Guo-Chun, Liang (Institution of Electrical Engineers, 1997-06)
    Article
    Open Access
    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 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)
    Article
    Open Access
    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 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)
    Article
    Open Access
    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 ...
  • 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)
    Article
    Open Access
    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 ...
  • 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)
    Article
    Open Access
    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 ...
  • 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
    Open Access
    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 ...