RF & Microwave Research Group

• R. Jauregui, J. Portilla, J.A. Reynoso-Hernandez, F.I. Hirata-Flores  A simple and reliable technique to characterize amplitude to phase modulation distortion for high-frequency amplifiers and nonlinear devices Review of Scientific Instruments,  2013;  84, no. 8,  084708 - 084708-4
• N. Otegi, A. Anakabe, J. Pelaz, J.M. Collantes, G. Soubercaze-Pun  Experimental Characterization of Stability Margins in Microwave Amplifiers IEEE Trans. Microwave Theory & Tech.,  2012;  60, no. 12,  4145 - 4156
• K. Narendra, E. Limiti, C. Paoloni, J.M. Collantes, R. Jansen, S. Yarman  Vectorially Combined Distributed Power Amplifier for Software-Defined Radio Applications IEEE Trans. Microwave Theory & Tech.,  2012;  60, no. 10,  3189 - 3200
• N. Ayllon, J.M. Collantes, A. Anakabe, I. Lizarraga, G. Soubercaze-Pun, S. Forestier  Systematic Approach to the Stabilization of Multitransistor Circuits IEEE Trans. Microwave Theory & Tech.,  2011;  59, no. 8,  2073 - 2082
• N. Garmendia, J. Portilla  Effect of the Input and Output Impedance on Amplifier Large-Signal Noise Performances IEEE Trans. Microwave Theory & Tech.,  2011;  59, no. 6,  1571 - 1578
• F.J. Casas, J.P. Pascual, M.L. de la Fuente, E. Artal, J. Portilla  Frequency-Domain Identification and Model-Order Selection for Efficiently Simulating Microwave Radiometers Computing in Science & Engineering,  2011;  14, no. 3,  68 - 77
• K. Narendra, E. Limiti, C. Paoloni, J.M. Collantes, R.H. Jansen, B.S. Yarman  Vectorially Combined Distributed Power Amplifier with Load Pull Impedance Determination Electronics Letters,  2010;  46 no. 16,  1137 - 1138
• F.J. Casas, J.P. Pascual, L. de la Fuente, E. Artal, J. Portilla  Simple Nonlinearity Evaluation and Modeling of Low-Noise Amplifiers with Application to Radio Astronomy Receivers Review of Scientific Instruments,  2010;  81, no. 7,  74704-1 - 74704-6
• N. Garmendia, J. Portilla  Investigations of AM, PM Noise, and Noise Figure in an SiGe-HBT Amplifier Operating in Linear and Nonlinear Regimes IEEE Trans. Microwave Theory & Tech.,  2010;  58, no. 4,  807 - 813
• F. Ramirez, A. Suarez, I. Lizarraga, J.M. Collantes  Stability Analysis of Nonlinear Circuits Driven With Modulated Signals IEEE Trans. Microwave Theory & Tech.,  2010;  58 no. 4,  929 - 940
• K. Narendra, J.M. Collantes, C. Paoloni, E. Limiti  Parametric Oscillations in Distributed Power Amplifiers Electronics Letters,  2009;  45, no. 25,  1325 - 1326
• A. Mallet, A. Anakabe, J. Sombrin, R. Rodriguez  Multiport-Amplifier-Based Architecture Versus Classical Architecture for Space Telecommunication Payloads IEEE Trans. Microwave Theory & Tech.,  2006;  54 no. 12,  4353 - 4361
• D. Girbau, N. Otegi, L. Pradell, A. Lazaro  Study of Intermodulation in RF MEMS Variable Capacitors IEEE Trans. Microwave Theory & Tech.,  2006;  54 no. 3,  1120 - 1130
• N. Otegi, J.M. Collantes, M. Sayed  Calibrated Noise Figure Measurements in Vector Network Analyser Electronics Letters,  2005;  41 no. 18,  999 - 1000
• F.J. Casas, J. Portilla, R. Quere, A. Mallet, J.F. Villemazet  Model-Order Reduction of Linear and Weakly Nonlinear Time-Varying RF and Microwave Circuits IEEE Trans. Microwave Theory & Tech.,  2004;  52 no. 9,  2262 - 2273
• J. Jugo, A. Anakabe, J.M. Collantes  Control Design in the Harmonic Domain for Microwave and RF Circuits IEE Proceedings on Control Theory and Applications,  2003;  150 no. 2,  127 - 131
• J.M. Collantes, R.D. Pollard, M. Sayed  Effects of DUT Mismatch on the Noise Figure Characterization: A Comparative Analysis of Two Y-Factor Techniques IEEE Transactions on Instrumentation and Measurement,  2002;  51, no. 6,  1150 - 1156
• A. Suarez, S. Sancho, S. Ver Hoeye, J. Portilla  Analytical Comparison Between Time- and Frequency-Domain Techniques for Phase-Noise Analysis IEEE Trans. Microwave Theory & Tech.,  2002;  50 no. 10,  2353 - 2361
• A. Anakabe, J.P. Pascual, J. Portilla, J. Jugo, J.M. Collantes  Harmonic-Balance Analysis of Digital Frequency Dividers 12, no. 8,  2002;  287
• J.M. Collantes, P. Bouysse, J. Portilla, R. Quere  A Dynamical Load-Cycle Charge Model for RF Power FETs IEEE Microwave and Wireless Components Letters,  2001;  11 no. 7,  296 - 298