Now showing items 1-20 of 29

  • A consistent methodology to characterize BAW resonators 

    Rocas Cantenys, Eduard; Collado Gómez, Juan Carlos; Aigner, Robert; Mateu Mateu, Jordi; Hueltes Escobar, Alberto; Booth, James C. (2012)
    Conference report
    Restricted access - publisher's policy
    We present a methodology to characterize BAW resonators both linearly and nonlinearly. The procedure uses physical modeling along with measurements that exploit different manifestations of the nonlinear phenomena to ...
  • A lateral modes model for BAW resonators 

    Collado Gómez, Juan Carlos; Rocas Cantenys, Eduard; Verdú, Jordi; Mateu Mateu, Jordi; Hueltes Escobar, Alberto; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    An equivalent circuit model to predict lateral modes occurring in real BAW resonators is proposed. The circuit model has been validated with FEM simulations of FBAR resonators and also with measurements of SMR resonators. ...
  • Analysis of PIFA antenna coupling in nearby traces and reduction with CSRRs in PCB at 2.45 GHz 

    Gil Galí, Ignacio; Fernández García, Raúl (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Open Access
    The electromagnetic coupling of a conventional planar inverted-F antenna (PIFA) antenna in the nearby layout traces is investigated in the 2.45 GHz industrial, scientific and medical radio band. The impact of a complementary ...
  • Atomic monolayer deposition on the surface of nanotube mechanical resonators 

    Tavernarakis, Alexandros; Chaste, Julien; Eichler, Alexander; Ceballo, Gustavo; Gordillo Bargueño, Maria Carmen; Boronat Medico, Jordi; Bachtold, Adrian (2014-05-14)
    Article
    Open Access
    We study monolayers of noble gas atoms (Xe, Kr, Ar, and Ne) deposited on individual ultraclean suspended nanotubes. For this, we record the resonance frequency of the mechanical motion of the nanotube, since it provides a ...
  • Design of tri-Notched UWB antenna based on elliptical and circular ring resonators 

    Ur, Saeed; Cao, Qunsheng; Li, You; Gil Galí, Ignacio; Yi, Wan (2018-12-18)
    Article
    Open Access
    This article presents the design of a compact coplanar waveguide (CPW) fed Monopole Antenna for ultra-wideband (UWB) applications. The semi-circular shaped radiator is fed with a 50-O line that resonates within the UWB ...
  • Enabling silicon-on-silicon photonics with pedestalled Mie resonators 

    Garin Escriva, Moises; Solà, Magdalena; Julian, Anatole Alexandre; Ortega Villasclaras, Pablo Rafael (2018-07-19)
    Article
    Open Access
    High-refractive-index Mie resonators are regarded as promising building blocks for low-loss all-dielectric nanophotonic applications. To avoid the otherwise excessive damping and loss of symmetry such devices typically ...
  • Estructures fractals de trèbol per ressonadors duals 

    Escoda Ramón, Jordi (Universitat Politècnica de Catalunya, 2008-01-31)
    Master thesis (pre-Bologna period)
    Open Access
    Aquest projecte tracta l’estudi d’estructures fractals de trèvol per la implementació i construcció de filtres amb ressonadors duals per aplicacions en les radiocomunicacions. Com anàlisi de l’estat de l’art, s’estudien ...
  • Estudio de un nuevo resonador ultra-compacto con compensación de variaciones en espesor del dieléctrico 

    Fieschi Peyre, Ivan (Universitat Politècnica de Catalunya, 2009-05-22)
    Master thesis (pre-Bologna period)
    Open Access
  • 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 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 ...
  • Mechanical tuning of substrate integrated waveguide filters 

    Mira, Fermin; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos (IEEE Microwave Theory and Techniques Society, 2015-12-01)
    Article
    Open Access
    This paper presents a novel approach for tuning substrate integrated waveguide resonators, realized by placing an additional metallized via-hole on the waveguide cavity. The approach presented here can be applied as a ...
  • Mechanical tuning of substrate integrated waveguide resonators 

    Mira, Fermín; Mateu, Joan; Collado Gómez, Juan Carlos (2012)
    Article
    Restricted access - publisher's policy
    This letter presents a novel approach for providing substrate-integrated waveguide tunable resonators by means of placing an additional metalized via-hole on the waveguide cavity. The via-hole contains an open-loop slot ...
  • Multimode ultra-wideband filters by using a grounded open ring resonator 

    Moradi, Bahareh; Martínez-Iranzo, Úrsula; García García, Joan (2016)
    Article
    Open Access
    This paper reports a novel multimode resonator (MMR) ultra-wide band-pass (UWB) filter design using a grounded open ring resonator. The utilization of 30 μm gaps between input ports and the central resonator achieve high ...
  • Nonlinear effects of electrode and bragg reflector materials in BAW resonators 

    García Pastor, David; González Rodríguez, Marta; Hueltes Escobar, Alberto; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; González Arbesú, José María; Kreuzer, Susanne; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Conference lecture
    Restricted access - publisher's policy
    This work presents a broadband characterization and modeling of the second harmonic nonlinear response in Bulk acoustic wave (BAW) resonators. The proposed circuit model is based on the constitutive equations describing ...
  • Nonlinear effects of SiO2 layers in bulk acoustic wave resonators 

    Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; García Pastor, David; Perea Robles, Rafael; Hueltes Escobar, Alberto; Kreuzer, Susanne; Aigner, Robert (IEEE Microwave Theory and Techniques Society, 2017-12-29)
    Article
    Open Access
    This paper presents the development of a comprehensive distributed circuit model to account for the existing nonlinear effects in bulk acoustic wave (BAW) resonators. The comprehensiveness of the model and its distributed ...
  • Nonlinear performance of BAW filters including BST capacitors 

    Rocas Cantenys, Eduard; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Hueltes Escobar, Alberto; Verdú Tirado, Jorge Andrés; Billard, Christophe; David, Jean Baptiste; Reinhardt, Alexandre (2014-04-01)
    Article
    Restricted access - publisher's policy
    This paper evaluates the nonlinear effects occurring in a bulk acoustic wave (BAW) filter which includes barium strontium titanate (BST) capacitors to cancel the electrostatic capacitance of the BAW resonators. To do that ...
  • On tunable switch-mode reactive networks: a gyrator-based resonator emulation 

    Saad, M.A.; Egidos, Nuria; Bou Balust, Elisenda; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    This paper introduces the concept of switch-mode tunable emulated reactive networks. The idea of implementing reactive networks based on the theory of gyrators is proposed and characterized in an application-driven ...
  • Optical and Electrical characterization of Carbon Nanotube based high-Q mechanical resonators 

    Palou Garcia, Xavier (Universitat Politècnica de Catalunya, 2014-06-10)
    Master thesis
    Open Access
    [ANGLÈS] Carbon Nanotubes have been one of the most intensively studied materials in the last two decades. Because of their combination of outstanding properties (mechanical, thermal, electrical, optical, etc.) the community ...
  • Outline process from the synthesis towards the nonlinear modeling of Bulk Acoustic Wave filters 

    Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Hueltes Escobar, Alberto; Perea Robles, Rafael; García Pastor, David; González Rodríguez, Marta; González Arbesú, José María (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    This work presents the nonlinear modeling of a real acoustic wave filter set at the cellular commercial receiver band B40. The paper outlines the synthesis procedure of the acoustic filter and presents the filter performance ...
  • Performance of BAW resonators at cryogenic temperatures 

    Rocas Cantenys, Eduard; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Hueltes Escobar, Alberto; Verdú Tirado, Jordi; Booth, James C.; Aigner, Robert (2013)
    Conference report
    Restricted access - publisher's policy
    In this work we go beyond the usual temperature range for commercial applications and explore the functioning of Bulk Acoustic Wave (BAW) resonators down to cryogenic temperatures, to get the whole picture at understanding ...