Ara es mostren els items 1-20 de 21

    • 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)
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      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)
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      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. ...
    • A thickness-shear MEMS resonator employing electromechanical transduction through a coplanar waveguide 

      Johnson, W.L.; Wallis, T.M.; Kabos, P.; Rocas Cantenys, Eduard; Collado Gómez, Juan Carlos; Liew, L.A.; Ha, J.Y.; Davydov, A.V.; Plankis, A.; Heyliger, P.R. (2012)
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      The design, modeling, fabrication, and characterization of a vibrationally trapped thickness-shear MEMS resonator is presented. This device is intended to avoid various limitations of flexural MEMS resonators, including ...
    • 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
      Accés restringit per política de l'editorial
      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 ...
    • 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
      Accés restringit per política de l'editorial
      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 ...
    • Exploiting dimensionality and defect mitigation to create tunable microwave dielectrics 

      Lee, Che-Hui; Orloff, Nathan D.; Birol, Turan; Rocas Cantenys, Eduard (2013-10)
      Article
      Accés restringit per política de l'editorial
      The miniaturization and integration of frequency-agile microwave circuits-relevant to electronically tunable filters, antennas, resonators and phase shifters-with microelectronics offers tantalizing device possibilities, ...
    • 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
      Accés obert
      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 ...
    • Lossy filter synthesis of L-band planar filters using novel software 

      Padilla Díaz, Alberto; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Rocas Cantenys, Eduard; Ernst, Cristoph; Rius Casals, Juan Manuel; Tamayo Palau, José María; O'Callaghan Castellà, Juan Manuel (2011)
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      Lossy synthesis techniques are used to synthesize high performance filters using resonators with a finite Q. With these techniques a transmission response of a lossless filter with lowest possible roll-off is obtained, ...
    • Nonlinear distributed model for bulk acoustic wave resonators 

      Collado Gómez, Juan Carlos; Rocas Cantenys, Eduard; Mateu Mateu, Jordi; Padilla Díaz, Alberto; O'Callaghan Castellà, Juan Manuel (2009-12)
      Article
      Accés obert
      This work expands the model proposed by Krimtholz, Leedom, and Matthaei (KLM) model to account for the nonlinear effects occurring in acoustic devices due to the nonlinear stiffened elasticity.We show that a nonlinear ...
    • Nonlinear mechanisms in passive microwave devices 

      Rocas Cantenys, Eduard (Universitat Politècnica de Catalunya, 2011-06-22)
      Tesi
      Accés obert
      The telecommunications industry follows a tendency towards smaller devices, higher power and higher frequency, which imply an increase on the complexity of the electronics involved. Moreover, there is a need for extended ...
    • 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
      Accés restringit per política de l'editorial
      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 ...
    • Passive intermodulation due to self-heating in printed transmission lines 

      Rocas Cantenys, Eduard; Collado Gómez, Juan Carlos; Orloff, Nathan; Mateu Mateu, Jordi; Padilla Díaz, Alberto; O'Callaghan Castellà, Juan Manuel; Booth, James C. (2011)
      Article
      Accés obert
    • 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)
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      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 ...
    • Sources of third–order intermodulation distortion in bulk acoustic wave devices: a phenomenological approach 

      Rocas Cantenys, Eduard; Collado Gómez, Juan Carlos (In-Teh (www.intechweb.org), 2011)
      Capítol de llibre
      Accés obert
      In this work, a model that uses several nonlinear parameters to predict harmonics and 3IMD distortion is presented. Its novelty lies in its ability to predict the nonlinear effects produced by self-heating in addition to ...
    • Superconducting Multiplexer Filter Bank for a Frequency-Selective Power Limiter 

      Padilla Díaz, Alberto; Mateu Mateu, Jordi; Orloff, Nathan D.; O'Callaghan Castellà, Juan Manuel; Collado Gómez, Juan Carlos; Booth, James C.; Rocas Cantenys, Eduard (2011-06)
      Article
      Accés obert
      This work proposes a superconducting multiplexer filter bank configuration to be used as a frequency-selective power limiter. The proposed configuration limits narrowband high-power signals within a single frequency band ...
    • Synthesis of 4th order lossy filters with uniform Q distribution 

      Mateu Mateu, Jordi; Padilla Díaz, Alberto; Collado Gómez, Juan Carlos; Martínez-Mendoza, Mónica; Rocas Cantenys, Eduard; Ernst, Cristoph; O'Callaghan Castellà, Juan Manuel (IEEE Microwave Theory and Techniques Society, 2010)
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    • Third order intermodulation distorsion in film bulk acoustic resonators at resonance and antiresonance 

      Rocas Cantenys, Eduard; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Campanella, Humberto; O'Callaghan Castellà, Juan Manuel (IEEE, 2008-06)
      Comunicació de congrés
      Accés obert
      This paper presents recent measurements and modeling of the third order intermodulation products of a Film Bulk Acoustic Resonator (FBAR), for a various values of frequency spacing between driving tones. The ...
    • Third-order intermodulation distorsion and harmonic genertion in mismatched weakly nonlinear transmission lines 

      Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Orloff, Nathan; Booth, James C.; Rocas Cantenys, Eduard; Padilla Díaz, Alberto; O'Callaghan Castellà, Juan Manuel (IEEE, 2009-01)
      Article
      Accés obert
      This paper describes a procedure to obtain analytical expressions for the spurious signals generated in nonlinear transmission lines with impedance mismatch when they are subject to small-signals. Using these expressions ...
    • Third-order intermodulation distortion due to self-heating in gold coplanar waveguides 

      Rocas Cantenys, Eduard; Collado Gómez, Juan Carlos; Orloff, Nathan; Booth, James C. (IEEE Microwave Theory and Techniques Society, 2010)
      Text en actes de congrés
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    • Three-port frequency-selective absorptive limiter 

      Hueltes Escobar, Alberto; Rocas Cantenys, Eduard; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Orloff, Nathan D.; Booth, James C.; García Pastor, David; Perea Robles, Rafael (2017-04-24)
      Article
      Accés obert
      This letter describes a novel three-port absorptive limiter for frequency-selective circuits based on a configuration similar to a conventional 90° hybrid coupler. This circuit uses the switching behavior of common diodes ...