Now showing items 1-15 of 15

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      Analytical method to estimate the complex permittivity of oil samples  [Article]

      Su, Lijuan; Mata Contreras, Javier; Vélez, Paris; Fernández Prieto, Armando; Martín, Ferrán (MDPI, 2018)
      In this paper, an analytical method to estimate the complex dielectric constant of liquids is presented. The method is based on the measurement of the transmission coefficient in an embedded microstrip line loaded with ...
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      Balanced-To-Balanced Microstrip Diplexer Based on Magnetically Coupled Resonators  [Article]

      Fernández Prieto, Armando; Lujambio, Aintzane; Martel Villagrán, Jesús; Medina Mena, Francisco; Martín, Ferrán; Rodríguez Boix, Rafael (Institute of Electrical and Electronics Engineers, 2018)
      Two balanced-To-balanced planar diplexers based on magnetically coupled microstrip resonators are proposed in this paper. For the first prototype, each channel/differential-output is composed of a second order single-band ...
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      Classical Physics and the Bounds of Quantum Correlations  [Article]

      Velázquez Ahumada, María del Castillo; Baltanás, José P.; Frustaglia, D.; Fernández Prieto, Armando; Lujambio, Aintzane; Losada Torres, Vicente; Freire Rosales, Manuel José (American Physical Society, 2016-06-24)
      A unifying principle explaining the numerical bounds of quantum correlations remains elusive, despite the efforts devoted to identifying it. Here, we show that these bounds are indeed not exclusive to quantum theory: for ...
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      Compact Balanced Dual-Band Bandpass Filter Based on Modified Coupled-Embedded Resonators  [Article]

      Bagci, Fulya; Fernández Prieto, Armando; Lujambio, Aintzane; Martel Villagrán, Jesús; Bernal Méndez, Joaquín; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers, 2017)
      A new compact balanced dual-band bandpass filter based on coupled-embedded resonators with modified ground plane is presented in this work. Common-mode is rejected within the two differential passbands by symmetrically ...
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      Compact balanced FSIR bandpass filter modified for enhancing common-mode suppression  [Article]

      Fernández Prieto, Armando; Martel Villagrán, Jesús; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Rodríguez Boix, Rafael (Institute of Electrical and Electronics Engineers, 2015)
      A novel balanced bandpass filter (BPF) based on folded stepped impedance resonators (FSIR's) with modified ground plane is presented in this work. By symmetrically introducing a series-LC resonant structure below the FSIR's, ...
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      Compact balanced-to-balanced diplexer based on split-ring resonators balanced bandpass filters  [Article]

      Fernández Prieto, Armando; Lujambio, Aintzane; Martín, Ferran; Martel Villagrán, Jesús; Medina Mena, Francisco; Rodríguez Boix, Rafael (Institute of Electrical and Electronics Engineers, 2018)
      A compact balanced-to-balanced diplexer composed of two balanced bandpass filters is proposed in this letter. The balanced filters are implemented using compact edge-coupled square split-ring resonators. The design methodology ...
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      Differential Lines for Common-Mode Suppression Based in Hybrid Microstrip/CPW Technology  [Article]

      Martel Villagrán, Jesús; Fernández Prieto, Armando; Lujambio, Aintzane; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Rodríguez Boix, Rafael (Institute of Electrical and Electronics Engineers, 2017)
      A symmetrical pair of differential microstrip lines implemented in hybrid microstrip/coplanar waveguide (CPW) technology is proposed. Transmission-line models are used to analyze differential-and common-mode responses, ...
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      Dual-band differential filter using broad-band common-mode rejection artificial transmission line  [Article]

      Mesa Ledesma, Francisco Luis; Qian, Shilong; Hong, Jia-Sheng; Naqui, Jordi; Martín, Ferrán; Fernández Prieto, Armando; Medina Mena, Francisco; Martel Villagrán, Jesús (2013)
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      Effects of inter-resonator coupling in split ring resonator loaded metamaterial transmission lines  [Article]

      Naqui, Jordi; Fernández Prieto, Armando; Mesa Ledesma, Francisco Luis; Medina Mena, Francisco; Martín, F. (American Institute of Physics, 2014)
      This paper investigates the effects of inter-resonator coupling in metamaterial transmission lines loaded with split ring resonators (SRRs). The study is performed from Bloch mode theory applied to the multiport equivalent ...
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      Líneas de transmisión artificiales para señales diferenciales con rechazo de modo común  [Final Degree Work]

      Reina Campo, Pablo (2017)
      En el campo de las comunicaciones eléctricas, el uso del espectro de microondas se ha ido generalizando progresivamente, encontrándose en este rango de frecuencias muchas de las aplicaciones que dominan la tecnología en ...
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      Microstrip circuit analog of a complex diffraction phenomenon  [Article]

      Fernández Prieto, Armando; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis (American Institute of Physics, 2009)
      This letter presents a methodology to reproduce at microwave frequencies the physical behavior of certain diffraction structures that have been investigated in the optics community. The methodology will be exemplified with ...
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      Multilayered balanced dual-band bandpass filter based on magnetically coupled open-loop resonators with intrinsic common-mode rejection  [Article]

      Medrán del Río, José L.; Lujambio, Aintzane; Fernández Prieto, Armando; Martínez Ros, Alejandro Javier; Martel Villagrán, Jesús; Medina Mena, Francisco (Multidisciplinary Digital Publishing Institute (MDPI), 2020)
      A new dual-band balanced bandpass filter based on magnetically coupled open-loop resonators in multilayer technology is proposed in this paper. The lower differential passband, centered at the Global Positioning System ...
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      Simple and compact balanced bandpass filters based on magnetically coupled resonators  [Article]

      Fernández Prieto, Armando; Lujambio, Aintzane; Martel Villagrán, Jesús; Medina Mena, Francisco; Mesa Ledesma, Francisco Luis; Rodríguez Boix, Rafael (Institute of Electrical and Electronics Engineers, 2015)
      A simple strategy is proposed to design differential-mode bandpass filters with good common-mode (CM) rejection using simple resonators. Specifically, the CM rejection is enhanced by using conventional open-loop resonators ...
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      The Beauty of Symmetry: Common-mode rejection filters for high-speed interconnects and balanced microwave circuits  [Article]

      Martin, Ferran; Naqui, Jordi; Fernández Prieto, Armando; Vélez, Paris; Bonache, Jordi; Martel Villagrán, Jesús; Medina Mena, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2017-02)
      Common-mode rejection filters operating at microwave frequencies have been the subject of intensive research activity in the last decade. These filters are of interest for the suppression of common-mode noise in high-speed ...
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      Ultra-compact (80 mm 2) differential-mode ultra-wideband (UWB) bandpass filters with common-mode noise suppression  [Article]

      Vélez, Paris; Naqui, Jordi; Fernández Prieto, Armando; Bonache, Jordi; Mata Contreras, Javier; Martel Villagrán, Jesús; Medina Mena, Francisco; Martín, Ferran (Institute of Electrical and Electronics Engineers, 2015)
      This paper presents a novel approach for the implementation of balanced ultra-wideband (UWB) bandpass filters with common-mode noise suppression. To a first-order approximation, the differential-mode filter response is ...