Recent Submissions

  • Analytical energy model for the dynamic behavior of RF MEMS switches under increased actuation voltage 

    Casals Terré, Jasmina; Llamas, Marco Antonio; Girbau Sala, David; Pradell i Cara, Lluís; Lázaro Guillén, Antonio; Giacomozzi, Flavio; Colpo, Sabrina (2014-12-01)
    Article
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    In this paper, the dynamic behavior of electrostatically actuated radio frequency-microelectromechanical system (RF-MEMS) switches is analyzed using energy considerations. An analytical model for bridge-type RF-MEMS switches ...
  • Faraday rotation retrieval using SMOS radiometric data 

    Corbella Sanahuja, Ignasi; Wu, Lin; Torres Canals, Francesc; Duffo Ubeda, Núria; Martín Neira, Manuel (2015-03-01)
    Article
    Open Access
    Faraday rotation is dynamically computed from L-band radiometric data acquired by the Soil Moisture and Ocean Salinity satellite. Improved full polarimetric image reconstruction and smart spatiotemporal filtering are used ...
  • Absorptive limiter for frequency-selective circuits 

    Collado Gómez, Juan Carlos; Hueltes Escobar, Alberto; Rocas Cantenys, Eduard; Mateu Mateu, Jordi; Booth, James C.; O'Callaghan Castellà, Juan Manuel; Verdú Tirado, Jorge Andrés (2014-06-01)
    Article
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    This letter describes a novel absorptive limiter for frequency-selective circuits. The proposed circuit allows the design of absorptive limiters based on a bi-state phase shifter, which is appropriate for integration into ...
  • 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
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    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 ...
  • Filtenna integration achieving ideal chebyshev return losses 

    Hueltes Escobar, Alberto; Verdú Tirado, Jorge Andrés; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Rocas Cantenys, Eduard; Valenzuela González, José Luis (2014-04-01)
    Article
    Open Access
    This paper demonstrates that it is possible to find an ideal filter response (Chebyshev, Butterworth,..) considering the antenna as the last resonator of a filter under certain circumstances related with the antenna ...
  • CPW balun for printed balanced antennas 

    Sanchez, Albert Miquel; Ribó, Miquel; Pradell i Cara, Lluís; Anguera Pros, Jaume; Andujar, Aurora (Institution of Electrical Engineers, 2014-05-22)
    Article
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    In coplanar waveguide (CPW) circuits, printed balanced antennas must be excited through baluns. These baluns often feature coplanar-to-slotline transitions that must be tuned and matched by electromagnetic optimisation, ...
  • Microwave spectrometry for the evaluation of the structural integrity of metallic stents 

    Arauz-Garofalo, Gianluca; López-Domínguez, Víctor; Hernández, Joan Manel; Rodríguez-Leor, Oriol; Bayés-Genís, Antoni; O'Callaghan Castellà, Juan Manuel; García-Santiago, Antoni; Tejada Palacios, Javier (2014-04-01)
    Article
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    PURPOSE: To assess the feasibility of a method based on microwave spectrometry to detect structural distortions of metallic stents in open air conditions and envisage the prospects of this approach toward possible medical ...
  • Towards a SMOS operational mission: SMOSOps-Hexagonal 

    Zurita Campos, Alberto Manuel; Corbella Sanahuja, Ignasi; Martín Neira, Manuel; Plaza, Miguel Angel; Torres Torres, Francisco; Benito, Francisco Javier (Institute of Electrical and Electronics Engineers (IEEE), 2013-06-03)
    Article
    Restricted access - publisher's policy
    The Microwave Imaging Radiometer with Aperture Synthesis (MIRAS) on-board the Soil Moisture and Ocean Salinity (SMOS) mission is providing useful data since November 2009, and proving the potential of 2D interferometry ...
  • Bandwidth-length trade-off figures of merit for electro-optic traveling wave modulators 

    Ibarra Fusté, Jose Antonio; Santos Blanco, M. Concepción (2013-05)
    Article
    Open Access
    Closed-form expressions explicitly relating modulation bandwidth and active length in electro-optic traveling wave modulators are presented which fully account for skin-effect electrode loss and optical-electrical wave ...
  • Electro-thermo-mechanical model for bulk acoustic wave resonators 

    Rocas Cantenys, Eduard; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Orloff, Nathan D.; Booth, James C.; Aigner, Robert (2013-11)
    Article
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    We present the electro-thermo-mechanical constitutive relations, expanded up to the third order, for a BAW resonator. The relations obtained are implemented into a circuit model, which is validated with extensive linear ...

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