Exploració per tema "Microwave circuits"

Ara es mostren els items 41-52 de 52

    • On the wireless microwave sensing of bacterial membrane potential in microfluidic-actuated platforms 

      Jofre Cruanyes, Marc; Jofre Cruanyes, Lluís; Jofre Roca, Lluís (Multidisciplinary Digital Publishing Institute (MDPI), 2021-05-14)
      Article
      Accés obert
      The investigation of the electromagnetic properties of biological particles in microfluidic platforms may enable microwave wireless monitoring and interaction with the functional activity of microorganisms. Of high relevance ...

    • Passive devices in X-Band for space communications 

      Albajar Garduño, Marc (Universitat Politècnica de Catalunya, 2016-02-09)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat

    • RF to microwave interferometer for cell detection in a microfluidic channel 

      Jiménez de la Cruz, Daniel (Universitat Politècnica de Catalunya, 2015-07)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   Katholieke Universiteit te Leuven
      This thesis presents a two port connectorized RF to microwave interferometer for single cell detection and characterization in a microfluidic channel. To allow setting the operational frequency within a broad bandwidth ...

    • RF-MEMS switches for a full control of the propagating modes in uniplanar microwave circuits and their application to reconfigurable multimodal microwave filters 

      Contreras Lizarraga, Adrián Arturo; Casals Terré, Jasmina; Pradell i Cara, Lluís; Ribó i Pal, Miquel; Heredia Vega, Julio César; Giacomozzi, Flavio; Margesin, Benno (2017-03-29)
      Article
      Accés obert
      In this paper, new RF-MEMS switch configurations are proposed to enable control of the propagating (even and odd) modes in multimodal CPW transmission structures. Specifically, a switchable air bridge (a switchable ...

    • Simplified polarization diversity heterodyne receiver for 1.25Gb/s cost-effective udWDM-PON 

      Cano Valadéz, Iván Nicolás; Lerín de la Santísima Trinidad, Adolfo; Polo Querol, Víctor; Prat Gomà, Josep Joan (2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      We propose a heterodyne receiver with a single-photodiode per polarization for ONU receiver in low-cost udWDM-PON. This grants polarization diversity operation showing a penalty of 6dB in sensitivity compared to a balanced ...

    • Software development tool for the nonlinear analysis of BAW resonators and filters 

      Perea Robles, Rafael (Universitat Politècnica de Catalunya, 2017-07-17)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat

    • Study of intermodulation in RF MEMS variable capacitors 

      Girbau Sala, David; Otegi Urdanpilleta, Nerea; Pradell i Cara, Lluís; Lázaro Guillén, Antoni (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-03-31)
      Article
      Accés obert
      This paper provides a rigorous study of the causes and physical origins of intermodulation distortion (IMD) in RF microelectromechanical systems (MEMS) capacitors, its analytical dependence on the MEMS device design ...

    • Third order intermodulation and thermal effects in electro-acoustic devices for communications 

      García Pastor, David (Universitat Politècnica de Catalunya, 2017-01-24)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat

    • Third-Harmonic and intermodulation distortion in bulk acoustic-wave resonators 

      García Pastor, David; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Aigner, Robert (IEEE Microwave Theory and Techniques Society, 2019-12-17)
      Article
      Accés obert
      This article discusses on the measured third-order intermodulation (IMD3) products and third harmonics (H3) appearing in a set of six different solidly mounted resonators (SMR) and bulk acoustic-wave (BAW) resonators with ...

    • Tone injection-based cancellation technique for nonlinear distortion reduction of modulated signals in BAW resonators 

      González Rodríguez, Marta; Collado Gómez, Juan Carlos; González Arbesú, José María; Mateu Mateu, Jordi; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (2020-01-01)
      Article
      Accés obert
      A technique for the reduction of third-order intermodulation distortion (IMD3) occurring in bulk acoustic wave (BAW) filters and multiplexers is presented. The method consists of using the intrinsic second-order intermodulation ...

    • X-band UAV-SAR optimization and validation 

      Royo, Miquel (Universitat Politècnica de Catalunya, 2018-07)
      Treball Final de Grau
      Accés obert
      This project consists on the improvement of an already validated System, as it is the work of a finished PhD Thesis. Due to the wide range of that thesis, many sub blocs need to be revaluated and optimized. That is the ...

    • X-parameters measurement techniques of 3-port devices 

      Fernández Jardí, Oscar (Universitat Politècnica de Catalunya, 2020-07)
      Treball Final de Grau
      Accés obert
      Nowadays, X parameters have become a very useful tool to measure devices with nonlinear behaviour due to S parameters shortcomings. Agilent Technologies developed and introduced this new functionality both in the N5242A ...