Conference papers in the area of speech signal processing

·       D. de la Montaña, Y. Campos-Roca, C. Pérez. Early detection of Parkinson’s disease by considering acoustic features of plosive consonants, Data Science, Statistics & Visualization Conference, Lisboa (Portugal), 2017.

·       C. Pérez, L. Naranjo, J. Martín, Y. Campos-Roca, A latent variable-based Bayesian regression to address recording replications in Parkinson’s disease, 22th European Signal Processing Conference (EUSIPCO), Lisboa (Portugal), 2014.

·       Y. Campos-Roca, I. Rodríguez, A. Kümmel, C. Avellí, An Interactive tool for MPEG-1 audio compression, EUSIPCO, 16th European Signal Processing Conference (EUSIPCO), Lausanne (Switzerland), 2008.

·       Y. Campos-Roca, E. Rodríguez, C. García, Estudio comparativo de los algoritmos PSOLA aplicados a la conversión texto-voz por concatenación de dífonos, IX Simposium Nacional de la Unión Científica Internacional de Radio (URSI), Las Palmas de Gran Canaria (Spain), 1994, pp. 351-355.

Conference papers in the area of RF, microwave and millimeter-wave devices and circuits

·       A. B. Amado-Rey, Y. Campos Roca, C. Friesicke, F. van Raay, H. Massler, A. Leuther, O. Ambacher, Analysis of 4-Way Divider MMICs in GaAs Technology for H-Band Applications, German Microwave Conference, Freiburg (Germany), 2018.

·       D. L. Benítez, V. F. Martín, Y. Campos-Roca, J. M. Taboada, Design of UWB Antennas for Communications in the VHF and UHF Frequency Bands, XXXII Simposium Nacional de la Unión Científica Internacional de Radio, Cartagena (Spain), 2017.

·       A. B. Amado-Rey, Y. Campos-Roca, C.Friesicke, A. Tessmann, H.Massler, S. Wagner, A. Leuther, M. Schlechtweg, O. Ambacher, A broadband 175–245 GHz balanced medium power amplifier using 50-nm mHEMT technology, Asia-Pacific Microwave Conference,  New Delhi (India), 2016.

·       A. B. Amado-Rey, Y. Campos-Roca, C.Friesicke, A. Tessmann, R. Lozar, S. Wagner, A. Leuther, M. Schlechtweg, O. Ambacher, A 280 GHz stacked-FET power amplifier cell using 50 nm metamorphic HEMT technology, 11th European Microwave Integrated Circuits Conference (EuMIC), London (UK), 2016.

·       A. B. Amado Rey, Y. Campos-Roca, S. Maroldt, A. Tessmann, A 200 GHz driver amplifier in metamorphic HEMT technology, Asia-Pacific Microwave Conference, Nanjing (China), 2015.

·       Y. Campos-Roca, A. Tessmann, H. Massler, M. Seelmann-Eggebert, A. Leuther, A G-Band Cascode MHEMT Medium Power Amplifier, 2013 International Conference on Infrared, Millimeter and Terahertz Waves, Mainz (Germany), 2013.

·       Y. Campos-Roca, H. Massler, A. Leuther, Scalable HEMT Small-Signal Model Extraction based on a Hybrid Multibias Approach, 2011 IEEE MTT-S International Microwave Workshop Series on Millimeter-Wave Integration Technologies (IMWS), Sitges (Spain), 2011.

·       C. Schwörer, Y. Campos-Roca, A. Leuther, A. Tessmann, M. Seelmann-Eggebert, H. Massler, M. Schlechtweg, G. Weimann, A 150 to 220 GHz balanced doubler MMIC using a 50 nm metamorphic HEMT technology, 13th GaAs Symposium, Paris (France), 2005.  

·       Y. Campos-Roca, L. Verweyen, M. Fernández-Barciela, M.C. Currás-Francos, E. Sánchez, A. Hülsman, M. Schlechtweg, Millimeter-wave Active MMIC Frequency Multipliers, European Microwave Conference, London (UK), 2001.

·       L. Verweyen, A. Tessmann, Y. Campos-Roca, M. Hassler, A. Bessemoulin, H. Tischer, T. Grave, V. Güngerich, LMDS up- an down-converter MMIC, IEEE MTT-S International Microwave Symposium, Boston (USA), 2000

·       M. Carmen Currás-Francos, P. J. Tasker, M. Fernández-Barciela, Y. Campos-Roca, E. Sánchez, Extraction of transistor large-signal models from vector nonlinear network analyzer, 55th ARFTG Conference, Boston (USA), 2000.

·       M. C. Currás-Francos, P. J. Tasker, M. Fernández-Barciela, Y. Campos-Roca, E. Sánchez, Accurate extraction of nonlinear transistor current state functions from large signal waveform measurements, European Microwave Conference, Munich (Germany), 1999.

·       M. Fernández-Barciela, P. J. Tasker, M. Carmen Currás-Francos, Y. Campos-Roca, E. Sánchez, Look-up-table models, RF Technology Seminar on Non-linear Device Characterization and Modeling for Highly Linear Communications Circuit Applications, (electronic communication), 1999.

·       M. Carmen Currás-Francos, P. J. Tasker, M. Fernández-Barciela, Y. Campos-Roca, E. Sánchez, Measurement and Characterization of a Class B amplifier, RF Technology Seminar on Non-linear Device Characterization and Modeling for Highly Linear Communications Circuit Applications(electronic communication), 1999.

·       M. Carmen Currás-Francos, Paul J. Tasker, M. Fernández-Barciela, Y. Campos-Roca, E. Sánchez, I-Q extractionRF Technology Seminar on Non-linear Device Characterization and Modeling for Highly Linear Communications Circuit Applications (electronic communication), 1999.

·       M. Carmen Currás-Francos, E. Sánchez, P.  J. Tasker, M. Fernández-Barciela, Y. Campos-Roca, Microwave semiconductor devices and circuits characterization, Conferencia de Dispositivos Electrónicos, Madrid (Spain), 1999.

·       E. Sánchez, M. Fernández, Y. Campos, C. Currás, Semiconductor devices and circuits for microwaves. An overview, Conferencia de Dispositivos Electrónicos, Madrid (Spain), 1999.

·       Y. Campos-Roca, W. Marsetz, M. Fernández-Barciela, L. Verweyen, M. Neumann, M. Demmler, H. Massler, W. H. Haydl, M.C. Currás-Francos, E. Sánchez, A. Hülsman, M. Schlechtweg, 38/76 GHz GaAs PHEMT frequency doublers in CPW technology, European Microwave Conference, Amsterdam (The Netherlands), 1998, pp. 202-205.

·       Y. Campos-Roca, L. Verweyen, M. Neumann, R. Osorio, A. Hülsmann, C. Currás-Francos, E. Sánchez, M. Fernández-Barciela, M. Schlechtweg, V-band PHEMT frequency doublers in CPW technology, International IEEE MTT/AP Workshop on MMIC Design, Packaging and System Applications, Freiburg (Germany), 1998, pp. 56-57.

·       L. Verweyen, Y. Campos-Roca, A. Tessmann, S. Kudszus, M. Neumann, H. Massler, GaAs PHEMT MMICs for 77 GHz automotive applications, International IEEE MTT/AP Workshop on MMIC Design, Packaging and System Applications, Freiburg (Germany), 1998, pp. 67-68.

·       M. C. Currás-Francos, P. J. Tasker, M. Fernández-Barciela, S. S. O´Keefe, Y. Campos-Roca, E. Sánchez, G. D. Edwards, W. A. Phillips, Experimental demonstration and CAD investigation of class B HFET transistor operation at microwave frequencies, European Microwave Conference, Amsterdam (The Netherlands), 1998, pp. 265-270.

·       M. Carmen Currás-Francos, P. J. Tasker, M. Fernández-Barciela, S. S. O´Keefe, E. Sánchez, Y. Campos-Roca, G. D. Edwards, W. Andrew Phillips, Accurate HEMT model extraction and validation in class A and B bias points using a full two-port large signal on-wafer measurement system, URSI International Symposium on Signals, Systems and Electronics, Pisa (Italy), 1998.

·       M. Fernández-Barciela, P. J. Tasker, Y. Campos-Roca, M. Demmler, E. Sánchez, M. C. Currás-Francos, Experimental research in table-based FET models, IEEE International Workshop on Experimentally Based FET Device Modelling & Related Nonlinear Circuit Design, Kassel (Germany), 1997.

·       M. Fernández-Barciela, P. J. Tasker, M. Demmler, Y. Campos-Roca, H. Massler, E. Sánchez, M. C. Currás-Francos, Michael Schlechtweg, Simplified nonquasi-static FET modelling approach experimentally validated up to 118.5 GHz, IEEE MTT-S International Microwave Symposium, Denver (USA), 1997.

·       M. Fernández-Barciela, E. Sánchez, P. J. Tasker, M. Demmler, Y. Campos, M. C. Currás, Modelo no lineal de FET basado en tablas, Conferencia de Dispositivos Electrónicos, Barcelona (Spain), 1997.

·       M. Fernández-Barciela, E. Sánchez, P. J. Tasker, M. Demmler, M. C. Currás, Y. Campos, Caracterización experimental de FETs de microondas, Conferencia de Dispositivos Electrónicos, Barcelona (Spain), 1997.