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    • Passive devices for UWB systems 

      Mira, Fermín; Mollfulleda, Antonio; Miskovsky, Pavel; Mateu Mateu, Jordi; González Arbesú, José María (Sciyo.com, 2010-09)
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    • 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
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    • 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 ...

    • Performance Projection of Electro-Optical Modulators for Radio-Over-Fiber in 2 GHz Cryogenic Front-End Receivers 

      Menéndez Nadal, Óscar; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Santos Blanco, M. Concepción; O'Callaghan Castellà, Juan Manuel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-06-30)
      Article
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      We present the design of a Y-Ba-Cu-O on LiNbO/sub 3/ cryogenic electro-optical modulator for analog 2 GHz applications. A resonant configuration of coplanar electrodes is considered, showing improvements with respect to ...

    • 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 ...

    • Prediction of Nonlinear Distortion in HTS Filters for CDMA Communicaction Systems 

      Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Ferrús Ferré, Ramón Antonio; O'Callaghan Castellà, Juan Manuel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2003-06-30)
      Article
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      HTS materials are known to produce intermodulation and other nonlinear effects, and this may restrict their use in wireless communication systems. While significant efforts are being done to measure and characterize nonlinear ...

    • Pulse integration 

      Berenguer Sau, Jordi; Mateu Mateu, Jordi (Universitat Politècnica de Catalunya, 2016-10)
      Apunts
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    • Quasi-3D model for lateral resonances on homogeneous BAW resonators 

      Udaondo Guerrero, Carlos; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi (Multidisciplinary Digital Publishing Institute (MDPI), 2023)
      Article
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      Lateral modes are responsible for the in-band spurious resonances that appear on BAW resonators, degrading the in-band filter response. In this work, a fast computational method based on the transmission line matrix (TLM) ...

    • Radar antennas 

      Berenguer Sau, Jordi; Mateu Mateu, Jordi (Universitat Politècnica de Catalunya, 2016-10)
      Apunts
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    • Radar block diagram 

      Berenguer Sau, Jordi; Mateu Mateu, Jordi (Universitat Politècnica de Catalunya, 2016-10)
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    • Radar cross section 

      Berenguer Sau, Jordi; Mateu Mateu, Jordi (Universitat Politècnica de Catalunya, 2016-10)
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    • Radar equation 

      Berenguer Sau, Jordi; Mateu Mateu, Jordi (Universitat Politècnica de Catalunya, 2016-10)
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    • Reduced microwave losses YBa2Cu3O7-d thin films on electro-optic LiNbO3 crystals 

      Fàbrega Sanchez, Lourdes; Rubí, R.; Fontcuberta, J.; Sanchez, F.; Ferrater Lambarri, Carlos; Garcia-Cuenca, M. V.; Varela, M.; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Menéndez, O.; O'Callaghan Castellà, Juan Manuel (American Institute of Physics (AIP), 2002-11)
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    • Reduced microwave losses YBa[sub 2]Cu[sub 3]O[sub 7 - delta] thin films on electro-optic LiNbO[sub 3] crystals 

      Fàbrega i Soler, Lluís; Rubí, R.; Fontcuberta, Josep; Sánchez, F.; Ferrater Martorell, Cesar; García-Cuenca Varona, Victoria; Varela, M.; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Menéndez Nadal, Óscar; O'Callaghan Castellà, Juan Manuel (AMER INST PHYSICS, 2002-10-31)
      Article
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      We report on the growth of epitaxial YBa2Cu3O7 thin films on X-cut LiNbO3 single crystals. The use of double CeO2/YSZ buffer layers allows a single in-plane orientation of YBa2Cu3O7, and results in superior superconducting ...

    • 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 ...

    • Secondary Surveillance RADAR (SSR) 

      Berenguer Sau, Jordi; Mateu Mateu, Jordi (Universitat Politècnica de Catalunya, 2016-10)
      Apunts
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    • Signal detection with noise 

      Berenguer Sau, Jordi; Mateu Mateu, Jordi (Universitat Politècnica de Catalunya, 2016-10)
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    • Sub-nanosecond tuning of microwave resonators fabricated on ruddlesden–popper dielectric thin films 

      Hagerstrom, A. M.; Lu, Xifeng; Dawley, Natalie M.; Mateu Mateu, Jordi (Wiley, 2018-08-01)
      Article
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      Voltage-tunable dielectric materials are widely used for microwave-frequency signal processing. Among tunable dielectric thin films, (SrTiO3)nSrO Ruddlesden–Popper (RP) superlattices have exceptionally low loss at high ...

    • 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
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      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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