Exploració per tema "Q-factor"

Ara es mostren els items 1-10 de 10

    • A simple algorithm to distribute optimally a number of external base stations in a microcellular environment 

      Agustí Comes, Ramon; Monfort, Xavier Querol; Pérez Romero, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 1998)
      Text en actes de congrés
      Accés obert
      A simple algorithm is proposed for the optimal distribution of a number of base stations in a microcellular environment. Criteria are defined in order to decide the combinations of antennas that should be tested, and a ...

    • Characterization of dynamics and power handling of RF MEMS using vector measurement techniques 

      Girbau Sala, David; Lázaro Guillén, Antoni; Pradell i Cara, Lluís (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2004-11-30)
      Article
      Accés obert
      This paper proposes a new method to measure dynamics and power handling of RF microelectromechanical systems (MEMS) devices based on a mobile membrane. The method uses in-phase/quadrature demodulation of an RF signal ...

    • Correction to "Nonlinear Analysis of Disk Resonators: Application to Material Characterization and Filter Design 

      Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; O'Callaghan Castellà, Juan Manuel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-12-31)
      Article
      Accés obert
      A procedure for the numerical prediction of the microwave nonlinear behavior (intermodulation products, degradation of quality factors, etc.) of TM010 disk resonators has been developed. The procedure is based on relating ...

    • Digitally programmable MOS resistive circuit 

      Alarcón Cot, Eduardo José; Martínez García, Herminio; Vidal López, Eva María; Poveda López, Alberto (Institution of Electrical Engineers, 2002-01)
      Article
      Accés restringit per política de l'editorial
      A mixed-signal cell is presented which operates as a digitally-controlled differential resistor and is suited to programmable continuous-time MOSFET-C filter applications. The cell is based on a digitally-controlled extension ...

    • Enhanced geometries of macroporous silicon photonic crystals for optical gas sensing applications 

      Cardador Maza, David; Vega d'Aurelio, Davide; Segura García, Daniel; Todorov Trifonov, Trifon; Rodriguez, Albert (2017-07-01)
      Article
      Accés obert
      A macroporous silicon photonic crystal is designed and optimized theoretically for its use in gas sensing applications and IR optical filters. Light impinges perpendicularly onto the sample surface (vertical propagation) ...

    • 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
      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)
      Article
      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 ...

    • Phase locked second harmonic etalon localization 

      Roppo, Vito; D'Aguanno, G.; Cojocaru, Crina; Raineri, F.; Trull Silvestre, José Francisco; Vilaseca Alavedra, Ramon; Raj, R; Scalora, M. (2009)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      During the last decades a phase locking phenomenon has been observed for second harmonic (SH) generation but only recently it was recognized as such in systematic studies. The general solution of the SHG from a linear/nonlinear ...

    • Suppression of undesired attractors in a self-oscillating H-bridge parallel resonant converters under zero current switching control 

      El Aroudi, Abdelali; Benadero García-Morato, Luis; Ponce, Enrique; Olalla Martinez, Carlos; Torres Peral, Francisco; Martínez Salamero, Luis (2018-11-08)
      Article
      Accés obert
      Resonant converters under zero current switching control strategy can exhibit coexistence of attractors, making it difficult the startup of the system from zero initial conditions. In this paper, the problem of multiple ...

    • Transmission and thermal emission in the NO2 and CO absorption lines using macroporous silicon photonic crystals with 700 Nm pitch 

      Cardador Maza, David; Segura García, Daniel; Vega Bru, Didac; Rodríguez Martínez, Ángel (Scitepress, 2017)
      Comunicació de congrés
      Accés obert