Exploració per autor "González Jiménez, José Luis"

Ara es mostren els items 9-28 de 45

    • Behavioural modelling of DLLs for fast simulation and optimisation of jitter and power consumption 

      Barajas Ojeda, Enrique; Mateo Peña, Diego; González Jiménez, José Luis (IEEE Computer Society Publications, 2010)
      Text en actes de congrés
      Accés obert
      This paper presents a behavioural model for fast DLL simulations. The behavioural model includes a modelling of the various noise sources in the DLL that produce output jitter. The model is used to obtain the dependence ...

    • Carbon nanotube FET process variability and noise model for radiofrequency investigations 

      Landauer, Gerhard Martin; González Jiménez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work focuses on process variability and noise in carbon nanotube field-effect transistors (CNFET) to obtain a compact model usable for radiofrequency (RF) design and simulations. CNFET figures of merit (FoM) are ...

    • CATRENE-PANAMA project review June 2010 

      González Jiménez, José Luis; Dufis, Cédric Yvan (2010-06-03)
      Report de recerca
      Accés restringit per acord de confidencialitat
      Informe de progrés del projecte Europeu CATRENE-PANAMA sobre les tasques desenvolupades per el grup de recerca HiPICS de la UPC

    • CATRENE-PANAMA project review November 2010 

      González Jiménez, José Luis; Dufis, Cédric Yvan (2010-11-23)
      Report de recerca
      Accés restringit per acord de confidencialitat
      Informe de progrés del projecte Europeu CATRENE-PANAMA sobre les tasques desenvolupades per el grup de recerca HiPICS de la UPC

    • CATRENE-PANAMA WP1: integrated PA Milestone M1.3 technology, approach & system choice for home networking 

      Dufis, Cédric Yvan; Mateo Peña, Diego; Bofill, Adrià; González Jiménez, José Luis (2009-10-30)
      Report de recerca
      Accés obert

    • Characterization of the substrate noise spectrum for mixed-signal ICs 

      Méndez Villegas, Miguel Ángel; Mateo Peña, Diego; Rubio Sola, Jose Antonio; González Jiménez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2005)
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      This paper presents a simplified analytical model of the substrate noise generated by digital circuitry that captures the most relevant frequency domain characteristics and relates them with parameters of the digital circuit ...

    • DC temperature measurements to characterize the central frequency and 3 dB bandwidth in mmW power amplifiers 

      Aragonès Cervera, Xavier; Mateo Peña, Diego; González Jiménez, José Luis; Vidal López, Eva María; Gómez Salinas, Didac; Martineau, B; Altet Sanahujes, Josep (2015-11)
      Article
      Accés obert
      This letter shows how a temperature sensor and a simple DC voltage multimeter can be used as instruments to determine the central frequency and 3 dB bandwidth of a 60 GHz linear power amplifier (PA). Compared to previous ...

    • Desenvolupament d'un sistema de comunicacions integrat per part d'estudiants de 2on cicle de l'ETSETB de la Universitat Politècnica de Catalunya 

      González Jiménez, José Luis; Mateo Peña, Diego; Aragonès Cervera, Xavier (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2005-02)
      Text en actes de congrés
      Accés obert
      El projecte ha consistit en el disseny i fabricació d’un circuit integrat que conté un receptor Bluetooth per a xarxes sense fils en una tecnologia CMOS de 0,35 m. Els objectius del projecte eren realitzar una experiència ...

    • Design of a 2.5-GHZ QVCO robust against high frequency substrate noise 

      Molina Garcia, Marc Manel; Gómez Salinas, Dídac; Aragonès Cervera, Xavier; Mateo Peña, Diego; González Jiménez, José Luis (2011-07)
      Article
      Accés restringit per política de l'editorial
      This work presents the design procedure followed to obtain a low-power voltage-controlled oscillator (VCO) robust against high-frequency substrate noise, using as a demonstrator a 2.5 GHz VCO with quadrature outputs (QVCO) ...

    • Design of a wideband class-A power amplifier for wireline communication 

      Dufis, Cédric Yvan; González Jiménez, José Luis (2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper introduce a design review of a wideband Power Amplifier with a 65nm CMOS technology. The Integrated Circuit has to work from 300MHz to 2:5GHz with external components adapted to a specific band. A 2.5D simulation ...

    • Design of injection locked frequency divider in 65nm CMOS technology for mmW applications 

      Brandano, Davide; González Jiménez, José Luis (2010)
      Text en actes de congrés
      Accés obert
      In this paper, an Injection Locking Frequency Divider (ILFD) in 65 nm RF CMOS Technology for applications in millimeter-wave (mm-W) band is presented. The proposed circuit achieves 12.69% of locking range without any ...

    • Diseño de circuitos y sistemas integrados 

      Rubio Sola, Jose Antonio; Altet Sanahujes, Josep; Aragonès Cervera, Xavier; González Jiménez, José Luis; Mateo Peña, Diego; Moll Echeto, Francisco de Borja (Edicions UPC, 2000)
      Llibre
      Accés restringit a la comunitat UPC
      La tecnología de circuitos integrados, basada principalmente en la miniaturización de los circuitos -con el incremento de prestaciones y la fuerte reducción de costos consiguientes– ha evolucionado intensamente en los ...

    • Diseño de circuitos y sistemas integrados 

      Rubio Sola, Jose Antonio; Altet Sanahujes, Josep; Aragonès Cervera, Xavier; González Jiménez, José Luis; Mateo Peña, Diego; Moll Echeto, Francisco de Borja (Edicions UPC, 2003)
      Llibre
      Accés restringit als usuaris de la UB, UAB, UPC, UPF, UdG, UdL, URV, UOC, BC, UVic, UJI, URL, UIC
      La tecnología de circuitos integrados, basada principalmente en la miniaturización de los circuitos ha evolucionado intensamente en los últimos tiempos. El objetivo de esta obra es dar a conocer esta evolución reciente y ...

    • DLL's behavioral modeling for power consumption and jitter fast optimization 

      Barajas Ojeda, Enrique; Mateo Peña, Diego; González Jiménez, José Luis (2010)
      Text en actes de congrés
      Accés obert
      This paper analyzes the sources of jitter in a DLL and presents a behavioral model for fast DLL optimization. An algorithm to simulate the DLL in open loop is demonstrated. This procedure, together with the behavioral ...

    • Effect of high frequency substrate noise on LC-VCOs 

      Molina Garcia, Marc Manel; Aragonès Cervera, Xavier; Mateo Peña, Diego; González Jiménez, José Luis (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
      Text en actes de congrés
      Accés obert
      This paper presents an experimental analysis of the performance degradation of an LC-Voltage Controlled Oscillator (LC-VCO) produced by high frequency noise present in the substrate. The spurs observed are shown to be ...

    • Electro-thermal characterization of a differential temperature sensor and the thermal coupling in a 65nm CMOS IC 

      Altet Sanahujes, Josep; González Jiménez, José Luis; Gómez Salinas, Dídac; Perpiñà, Xavier; Grauby, Stephane; Dufis, Cédric Yvan; Vellvehi, Miquel; Mateo Peña, Diego; Dilhaire, Stefan; Jordà, Xavier (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper explains the design decisions and the different measurements we have done in order to characterize the thermal coupling and the ch aracteristics of temperature sensors embedded in a integrated circuit ...

    • Electro-thermal coupling analysis methodology for RF circuits 

      Gómez Salinas, Didac; Dufis, Cédric Yvan; Altet Sanahujes, Josep; Mateo Peña, Diego; González Jiménez, José Luis (2012-09)
      Article
      Accés restringit per política de l'editorial
      In this paper an electro-thermal co-simulation methodology suitable for RF circuits is presented. It circumvents traditional transient simulation drawbacks that arise when signals or magnitudes whose frequencies are separated ...

    • Frequency characterization of a 2.4 GHz CMOS LNA by Thermal Measurements 

      Mateo Peña, Diego; Altet Sanahujes, Josep; Aldrete Vidrio, Héctor; González Jiménez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2006)
      Text en actes de congrés
      Accés obert
      This paper presents a technique to obtain electrical characteristics of analog and RF circuits, based on measuring temperature at the silicon surface close to the circuit under test. Experimental results validate the ...

    • Improved current-source sizing for high-speed high-accuracy current steering d/a converters 

      Miquel, Albiol; González Jiménez, José Luis; Alarcón Cot, Eduardo José (IEEE, 2003)
      Text en actes de congrés
      Accés obert
      This paper describes a design methodology for the basic current source cell circuit of high-speed high-accuracy current steering DIA conveners taking into account mismatching in all the transistors of the cell. Previous ...

    • Inductor shielding strategies to protect mmW LC-VCOs from high frequency substrate noise 

      Molina García, Marc; Aragonès Cervera, Xavier; Mateo Peña, Diego; González Jiménez, José Luis (2013-05-01)
      Article
      Accés restringit per política de l'editorial
      This paper analyzes the impact of high-frequency substrate noise on two 60 GHz LC-VCOs that implement different strategies for inductor shielding, namely floating and grounded shields. An analytical model, which has ...