Exploració per autor "Aigner, Robert"

Ara es mostren els items 1-20 de 23

    • 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. ...

    • Acoustic wave filters for enhanced performance 

      Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Hueltes Escobar, Alberto; Perea Robles, Rafael; Aigner, Robert; Khlat, Nadim (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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      This paper presents a novel filter configuration based on acoustic wave resonators that allows to obtain filter responses unachievable with the well established ladder configuration, such as arbitrary position of transmission ...

    • Acoustic wave transversal filter for 5G N77 band 

      Mateu Mateu, Jordi; Yusuf, Yazid; Perea Robles, Rafael; Collado Gómez, Juan Carlos; Gimenez, Alfred; Martín Iglesias, Petronilo; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2021-10-01)
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      This work presents the complete synthesis procedure and circuit transformations needed to go from the characteristic polynomials to the transversal network formed by electroacoustic resonators. This filter topology allows ...

    • Analysis of border ring modes on SMR-BAW resonators 

      Udaondo Guerrero, Carlos; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2019)
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      An equivalent circuit model is proposed in order to model the Border Ring (BR) spurious modes on Type I Solidly Mounted Resonators (SMR) BAW resonators and the cancellation of the in-band lateral modes that the BR frame ...

    • Analytical modeling method of thermal spreading resistance in BAW filters 

      González Rodríguez, Marta; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; González Arbesú, José María; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2019)
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      As the power requirements in BAW filters steadily increase, thermal behaviour emerges as a key asset to ensure device performance and reliability. Under these conditions, self-heating mechanisms drive to possible situations ...

    • Application of the input-output equivalent sources method for the simulation of nonlinearities in TC-SAW resonators and filters 

      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), 2022)
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      A good understanding of the nonlinearity mechanism in SAW devices is a crucial aspect in the filter stage. Nonlinear intermodulation distortion (IMD) may lead to spurious signals falling into the receiver band and limiting ...

    • 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)
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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 ...

    • Fast procedure for the nonlinear analysis of BAW resonators 

      Perea Robles, Rafael; García Pastor, David; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2018)
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      This work presents the development of a Matlab software tool based on a non-iterative method for the nonlinear analysis of Bulk Acoustic Wave (BAW) resonators and filters. The procedure starts with the admittance matrix ...

    • Fast simulation method of distributed nonlinearities in surface acoustic wave resonators 

      González Rodríguez, Marta; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; González Arbesú, José María; Aigner, Robert; Huebner, Sebatian (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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      Understanding the mechanism of nonlinearity in SAW/BAW devices is growing up in importance because these, even being weak, can cause desensitization of the receivers and limiting their performance. Proper nonlinear distributed ...

    • 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)
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      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)
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      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. ...