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Ángel Mediavilla Sánchez
Researcher at University of Cantabria
Publications - 96
Citations - 375
Ángel Mediavilla Sánchez is an academic researcher from University of Cantabria. The author has contributed to research in topics: Antenna (radio) & Intermodulation. The author has an hindex of 9, co-authored 96 publications receiving 345 citations.
Papers
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Journal ArticleDOI
Empirical modeling of low-frequency dispersive effects due to traps and thermal phenomena in III-V FET's
Fabio Filicori,Giorgio Vannini,Alberto Santarelli,Ángel Mediavilla Sánchez,Antonio Tazón,Y. Newport +5 more
TL;DR: In this article, an empirical modeling approach is presented to accurately predict deviations between static and dynamic drain current characteristics caused by dispersive effects in III-V devices operating at microwave frequencies.
Journal ArticleDOI
Resistive FET mixer conversion loss and IMD optimization by selective drain bias
José Ángel García García,Jose C. Pedro,M.L. de la Fuente,N.B. de Carvalho,Ángel Mediavilla Sánchez,Araceli Puente +5 more
TL;DR: In this paper, a dedicated nonlinear MESFET model was used to accurately represent the device's drain-source current nonlinearity, and an analytical expression was proposed, based on the Shockley approach, with good derivative reproduction.
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Characterizing the gate-to-source nonlinear capacitor role on GaAs FET IMD performance
José Ángel García García,Ángel Mediavilla Sánchez,Jose C. Pedro,N.B. de Carvalho,Araceli Puente,J.L. Garcia +5 more
TL;DR: In this article, the gate-to-source nonlinear capacitor contribution on small-signal intermodulation distortion (IMD) as well as other nonlinear related phenomena such as the onset of phase distortion and gain compression in GaAs FET devices are discussed.
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A fast calibration-independent method for complex permittivity determination at microwave frequencies
TL;DR: In this paper, a transmission/reflection microwave method based on uncalibrated S -parameter measurements for complex permittivity determination of dielectric materials is presented.
Journal ArticleDOI
Smoothing the canonical piecewise-linear model: an efficient and derivable large-signal model for MESFET/HEMT transistors
Marcelino Lázaro,Ignacio Santamaria,C. Pantaleon,Ángel Mediavilla Sánchez,Antonio Tazón Puente,T. Fernandez +5 more
TL;DR: The SPWL model is an extension of the well-known canonical piecewise-linear model proposed by Chua, which substitutes the abrupt absolute value function for a smoothing function (the logarithm of hyperbolic cosine), thus providing the model with several interesting properties.