Exploració per autor "Aigner, Robert"

Ara es mostren els items 11-23 de 23

    • Method to measure reflection coefficient under CW high-power signals in SAW resonators 

      González Rodríguez, Marta; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; González Arbesú, José María; Huebner, Sebatian; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2021)
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      Improving power handling and lifetime are key assets to ensure device performance and reliability. SAW resonators composed by very thin cross-section inter-digital transducer (IDT) structures make difficult to control the ...

    • 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, 2018-04)
      Article
      Accés obert
      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 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)
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      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 performance on acoustic transversal filters 

      Perea Robles, Rafael; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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      The recently proposed transversal topology for creating acoustic filters allows to achieve arbitrary filter responses, in terms of position of transmission zeros and bandwidth, among others. This new topology might indeed ...

    • Out of band improved performance into a measured 5G N77 band transversal filter 

      Udaondo Guerrero, Carlos; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Perea Robles, Rafael; Yusud, Yazid; Giménez Bonastre, Alfred Raul; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2021)
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      Transversal networks for electroacoustic filters had been proposed and manufactured recently. One of the main problems that arose in the first prototype were the spurious modes due to the mirror stack of the Solidly Mounted ...

    • 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 ...

    • Practical issues on the implementation of acoustic transversal filters 

      Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2019)
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      This paper evaluates important aspect of acoustic filters based on a transversal configuration in order to foreseen the potential and limitations of this new configuration. These aspects are: effects of the losses of the ...

    • Role of SiO2 layers in third-order nonlinear effects of temperature compensated BAW resonators 

      García Pastor, David; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2019)
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      This work applies a comprehensive nonlinear characterization process of two Temperature Compensated Bulk Acoustic Wave (TC-BAW) resonators. In both resonators, the SiO 2 layers have a remarkable impact on the generation ...

    • Synthesis of acoustic wave filters for enhanced response 

      Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Hueltes, Alberto; Aigner, Robert; Khlat, Nadim (2018)
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      Acoustic filters are, without any doubt, the key technology for the development of highly miniature high performance RF/Microwave filters. Such a technological and engineering effort has been one of the driving forces for ...

    • The Input-output equivalent sources method for fast simulations of distributed nonlinearities in bulk acoustic wave resonators and filters 

      Collado Gómez, Juan Carlos; González Rodríguez, Marta; Mateu Mateu, Jordi; Perea Robles, Rafael; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Article
      Accés obert
      This work presents a new method to analyze weak distributed nonlinear effects, with focus on the generation of harmonics (H) and intermodulation products (IMD) in bulk acoustic wave resonators and filters composed of them. ...

    • 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 ...

    • Unified model for Bulk Acoustic Wave resonators’ nonlinear effects 

      Rocas Cantenys, Eduard; Collado Gómez, Juan Carlos; Booth, James C.; Iborra, Enrique; Aigner, Robert (2009)
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    • Wideband transversal acoustic wave filters. Application to connected cars 

      Perea Robles, Rafael; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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      This paper presents the synthesis and circuit transformations of acoustic wave filters based on a transversal arrangement of the individual resonators. This configuration allows for the synthesis of any filter response ...