GDAF

The main R&D activities of the group are related to radiofrequency (RF) and microwave technologies. Specifically, they focus on linear/non-linear modelling and characterization of microwave active devices and circuits, the design of hybrid and monolithic microwave integrated circuits, and the design of RF circuits for radio communications.

 

Research topics

  • Linear and nonlinear modelling, and experimental characterization of microwave semiconductor active devices and MIC circuits, both wafer and encapsulated.
  • Design of hybrid and monolithic MIC circuits for microwave applications.
  • Large-signal measurement (vectorial calibrated) in radio frequency and microwaves, with monotone and multi-tone excitation in different terminal impedance environments (active and passive load-pull).
  • Design of radio frequency circuits for radio communications: power amplifiers, filters, combiners, duplexers, etc.

 

Keywords

Semiconductors, microwaves, amplifiers, RF sub-systems, MIC design, nonlinear characterization, nonlinear modelling
 

Technological offer

  • Hybrid RF and microwave circuits design and prototypes fabrication. RF sub-systems design.
  • MMIC design for communications.
  • Linear and nonlinear vector calibrated characterization of microwave devices and circuits ( on die or packaged).
  • Nonlinear microwave transistor model development.
  • Consultants in RF and microwave communications sub-systems.

 

Related research areas

 

Members

 

Contact information

Mónica Fernández Barciela

+34 986 818 654
monica.barciela@uvigo.es

 

Research results

Conference Paper
Sajedin, M., Elfergani, I., Rodriguez, J., Abd-Alhameed, R., Fernandez-Barciela, M., Violas, M., Abdulkhaleq, A.
Energy Efficient and Wideband Class-J Doherty Power Amplifier
2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2020, : 9249642, 2020 | DOI

Article
Vilas, C., Antelo, L.T., Martin-Rodriguez, F., Morales, X., Perez-Martin, R.I., Alonso, A.A., Valeiras, J., Abad, E., Quinzan, M., Barral-Martinez, M.
Use of computer vision onboard fishing vessels to quantify catches: The iObserver
Marine Policy, 116: 103714, 2020 | DOI

Conference Paper
Rocio Moure, M., Casbon, M., Fernandez-Barciela, M., Tasker, P.J.
A Systematic Investigation of Behavioural Model Complexity Requirements
EuMIC 2018 - 2018 13th European Microwave Integrated Circuits Conference, : 77-808539950, 2018 | DOI

Article
Pedrosa-Rodriguez, L., Outerelo, D.A., Gomez-Alcala, R., de Vicente, F.I., Diaz-Otero, F.J.
Design, development and testing of a helical resonator for trapping Sr+ ions for frequency standards and sensing applications
Measurement: Journal of the International Measurement Confederation, 125: 156-162, 2018 | DOI

Conference Paper
Moure, M.R., Casbon, M., Ladero, N., Fernandez-Barciela, M., Tasker, P.J.
A Systematic Investigation of Admittance Domain Behavioral Model Complexity Requirements
2018 IEEE MTT-S Latin America Microwave Conference, LAMC 2018 - Proceedings, : 8699054, 2018 | DOI

Conference Paper
Moure, M.R., Casbon, M., Fernandez-Barciela, M., Tasker, P.J.
Direct extraction of an admittance domain behavioral model from large-signal load-pull measurements
IEEE MTT-S International Microwave Symposium Digest, : 1057-10608058775, 2017 | DOI

Conference Paper
Fernandez-Barciela, M., Moure, M.R., Casbon, M., Tasker, P.J., Pelaez-Perez, A.
Exploiting behavioral modelling formulations for nonlinear analytical circuit design and improved frequency scalability: Bandwidth extension through the admittance domain (Invited paper)
2017 IEEE 18th Wireless and Microwave Technology Conference, WAMICON 2017, : 7930279, 2017 | DOI

Conference Paper
Moure, M.R., Fernandez-Barciela, M., Casbon, M., Tasker, P.J.
Broadband non-linear FET behavioral model defined in the admittance domain
EuMIC 2016 - 11th European Microwave Integrated Circuits Conference, : 281-2847777545, 2016 | DOI

Article
Rodríguez-Testera, A., Pelaez-Perez, A., Fernandez-Barciela, M., Tasker, P.J.
Design of injection-locked oscillator circuits using an HBT X-parameters™-based model
IET Microwaves, Antennas and Propagation, 9(4): 380-388, 2015 | DOI

Article
Fernandez-Barciela, M., Pelaez-Perez, A.M., Woodington, S., Alonso, J.I., Tasker, P.J.
Stretching the design: Extending analytical circuit design from the linear to the nonlinear domain
IEEE Microwave Magazine, 15(6): 106-1206891480, 2014 | DOI

Conference Paper
Martín-Rodríguez, F.
Automatic optical reading of passport information
Proceedings - International Carnahan Conference on Security Technology, 2014-October(October): 6987041, 2014 | DOI

Conference Paper
Martín-Rodríguez, F.
New tools for gray level histogram analysis, applications in segmentation
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 7950 LNCS: 326-335, 2013 | DOI

Article
Rodriguez-Testera, A., Mojón, O., Boaventura, A.S., Fernandez-Barciela, M., Borges Carvalho, N., Vanden Bossche, M., Pailloncy, G.
Diode power detector X-parameters™ model extraction using LSNA-based measurement system
Electronics Letters, 49(3): 196-198, 2013 | DOI

Article
Fernández-Hermida, X., Durán-Neira, C., Lago-Reguera, M.D., Posse-García, I., Martín-Rodríguez, F.
Is the hidroboya™ a suitable system to read water parameters?
WIT Transactions on Ecology and the Environment, 169: 167-175, 2013 | DOI

Conference Paper
Pelaez-Perez, A.M., Woodington, S., Fernandez-Barciela, M., Tasker, P.J., Alonso, J.I.
Application of an NVNA-based system and load-independent X-parameters in analytical circuit design assisted by an experimental search algorithm
IEEE Transactions on Microwave Theory and Techniques, 61(1): 581-5866387635, 2013 | DOI

Conference Paper
Pelaez-Perez, A.M., Alonso, J.I., Fernandez-Barciela, M., Tasker, P.J.
Device modeling with small-signal X-parameters measured with a special PNA-X configuration for the study of non-linear interactions
European Microwave Week 2012: "Space for Microwaves", EuMW 2012, Conference Proceedings - 7th European Microwave Integrated Circuits Conference, EuMIC 2012, : 266-2696483787, 2012 | DOI

Conference Paper
Pelaez-Perez, A.M., Fernandez-Barciela, M., Tasker, P.J., Alonso, J.I.
Application of a NVNA-based system and load-independent X-parameters in analytical circuit design assisted by an experimental search algorithm
IEEE MTT-S International Microwave Symposium Digest, : 6258338, 2012 | DOI

Article
Pelaez-Perez, A.M., Woodington, S., Fernández-Barciela, M., Tasker, P.J., Alonso, J.I.
Large-signal oscillator design procedure utilizing analytical X-parameters closed-form expressions
IEEE Transactions on Microwave Theory and Techniques, 60(10): 3126-31366279476, 2012 | DOI

Article
Pelaez-Perez, A.M., Woodington, S., Alonso, J.I., Fernandez-Barciela, M., Tasker, P.J.
X-parameters®-based closed-form expressions for evaluating power-dependent fundamental negative and positive real impedance boundaries in oscillator design
IET Microwaves, Antennas and Propagation, 6(8): 835-840, 2012 | DOI

Conference Paper
Pelaez-Perez, A.M., Alonso, J.I., Fernandez-Barciela, M., Tasker, P.J.
Validation of load-independent X-parameters® formulation for use in analytical circuit design
IET Seminar Digest, 2011(6): 47-50, 2011 | DOI

Conference Paper
Martín-Rodriguez, F., Fernandez-Montenegro, J.M.
SWAD: Secure watermarking for authentication of scanned documents
2011 50th FITCE Congress - "ICT: Bridging an Ever Shifting Digital Divide", FITCE 2011, : 6133439, 2011 | DOI

Conference Paper
Pelaez-Perez, A.M., Alonso, J.I., Fernandez-Barciela, M., Rodriguez-Testera, A., Tasker, P.J., Woodington, S.
Experimental verification of analytical design equations based on X-parameters®for predicting role of series feedback
European Microwave Week 2011: "Wave to the Future", EuMW 2011, Conference Proceedings - 6th European Microwave Integrated Circuit Conference, EuMIC 2011, : 148-1516102869, 2011 | DOI

Conference Paper
Fernández-Hermida, X., Durán-Neira, C., Lago-Reguera, M.D., Rodriguez-Alemparte, C., Martín-Rodríguez, F.
Hidroboya: An autonomous buoy for real time high quality sea and continental water data retrieval
OCEANS 2011 IEEE - Spain, : 6003577, 2011 | DOI

Conference Paper
Boaventura, A.S., Testera, A.R., Carvalho, N.B., Barciela, M.F.
Using X-parameters to model diode-based RF power probes
IEEE MTT-S International Microwave Symposium Digest, : 5972900, 2011 | DOI

Article
Gomes, H., Testera, A.R., Carvalho, N.B., Fernández-Barciela, M., Remley, K.A.
Diode power probe measurements of wireless signals
IEEE Transactions on Microwave Theory and Techniques, 59(4 PART 1): 987-9975696790, 2011 | DOI

Conference Paper
Peláez-Pérez, A.M., Rodríguez-Testera, A., Mojón, O., Fernández-Barciela, M., Tasker, P.J., Alonso, J.I.
Utilization and validation of HBT nonlinear frequency domain behavioral models in the design and simulation of oscillator circuits
European Microwave Week 2010, EuMW2010: Connecting the World, Conference Proceedings - European Microwave Conference, EuMC 2010, : 481-4845616685, 2010 | DOI

Conference Paper
Martin-Rodriguez, F., Garcia, G.B., Lires, M.A.
Technological archaeology: Technical description of the Gauss-Weber telegraph
2nd Region 8 IEEE Conference on the History of Telecommunications: A Century of Broadcasting, HISTELCON 2010 - Conference Proceedings, : 5735309, 2010 | DOI

Conference Paper
Gomes, H., Testera, A.R., Carvalho, N.B., Barciela, M.F., Remley, K.A.
The impact of long-term memory effects on diode power probes
IEEE MTT-S International Microwave Symposium Digest, : 596-5995514791, 2010 | DOI

Conference Paper
Vazquez-Fernandez, E., Dacal-Nieto, A., Martin, F., Torres-Guijarro, S.
Entropy of Gabor filtering for image quality assessment
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 6111 LNCS(PART 1): 52-61, 2010 | DOI

Article
Rodríguez-Testera, A., Mojón, O., Fernández-Barciela, M., Sánchez, E., Tasker, P.J.
Nonlinear HBT table-based model including low-frequency noise effects
Electronics Letters, 46(9): 635-636, 2010 | DOI

Conference Paper
Martín-Rodríguez, F., Vázquez-Fernández, E., Dacal-Nieto, Á., Formella, A., Álvarez-Valado, V., González-Jorge, H.
Digital instrumentation calibration using computer vision
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 6112 LNCS(PART 2): 335-344, 2010 | DOI

Conference Paper
Dacal-Nieto, A., Vázquez-Fernández, E., Formella, A., Martin, F., Torres-Guijarro, S., González-Jorge, H.
A genetic algorithm approach for feature selection in potatoes classification by computer vision
IECON Proceedings (Industrial Electronics Conference), : 1955-19605414871, 2009 | DOI

Conference Paper
Vazquez-Fernandez, E., Dacal-Nieto, A., Martin, F., Formella, A., Torres-Guijarro, S., Gonzalez-Jorge, H.
A computer vision system for visual grape grading in wine cellars
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 5815 LNCS: 335-344, 2009 | DOI

Article
Vázquez-Fernández, E., Dacal-Nieto, A., Gonzlez-Jorge, H., Martín, F., Formella, A., Alvarez-Valado, V.
A machine vision system for the calibration of digital thermometers
Measurement Science and Technology, 20(6): 65106, 2009 | DOI

Conference Paper
Williams, T., Mojón, O., Woodington, S., Lees, J., Barciela, M.F., Benedikt, J., Tasker, P.J.
A robust approach for comparison and validation of large signal measurement systems
IEEE MTT-S International Microwave Symposium Digest, : 257-2604633152, 2008 | DOI

Conference Paper
Testera, A.R., Mojón, O., Barciela, M.F., Sánchez, E.
Robust packaged diode modelling with a table- based approach
2008 European Microwave Integrated Circuit Conference, EuMIC 2008, : 131-1344772246, 2008 | DOI

Conference Paper
Martin, F., Pousada, J.M.
Automatic reading of manuscript forms
Proceedings of the 5th IASTED International Conference on Signal Processing, Pattern Recognition, and Applications, SPPRA 2008, : 110-115, 2008 | DOI

Conference Paper
Vázquez-Fernández, E., González-Jorge, H., Dacal-Nieto, A., Martín, F., Formella, A.
Human feature perception as a complementary method for digit recognition
Proceedings of the 8th IASTED International Conference on Visualization, Imaging, and Image Processing, VIIP 2008, : 251-256, 2008 | DOI

Conference Paper
Martín, F., Vázquez-Fernández, E., Formella, A., González-Jorge, H., Dacal-Nieto, A.
Automatic reading of digital instrumentation
IEEE International Symposium on Industrial Electronics, : 913-9184677066, 2008 | DOI

Article
Rodríguez-Testera, A., Fernández-Barciela, M., Fernández-Manín, G., Mojón, O., Sánchez, E., Tasker, P.J.
Fully functional nonlinear table-based HBT model with explicit thermal feedback
IEEE Microwave and Wireless Components Letters, 17(8): 601-603, 2007 | DOI

Conference Paper
Nuñez-Fernández, B., Fernández-Barciela, M., Fernández-Manín, G., Mojón, O., Sánchez, E., Tasker, P.J.
Nonlinear table-based static HBT model including thermal effects
2006 International Workshop on Integrated Nonlinear Microwave and Millimeter-Wave Circuits, INMMIC 2006 - Proceedings, : 6-84062245, 2006 | DOI

Conference Paper
Angelov, I., Samelis, A., Fernandez-Barciela, M., Mojon, T.
Modeling of multi-finger SiGe HBTs and the error metrics of the large signal model performances
2006 International Workshop on Integrated Nonlinear Microwave and Millimeter-Wave Circuits, INMMIC 2006 - Proceedings, : 72-754062263, 2006 | DOI

Conference Paper
Martín-Guerrero, T.M., Baños-Polglase, J.D., Camacho-Peñalosa, C., Fernández-Barciela, M., Morgan, D.G., Tasker, P.J.
Frequency domain-based approach for nonlinear quasi-static FET model extraction from large-signal waveform measurements
Proceedings of the 1st European Microwave Integrated Circuits Conference, EuMIC 2006, : 441-4444057671, 2006 | DOI

Conference Paper
Pirazzini, M., Fernández, G., Alabadelah, A., Vannini, G., Barciela, M., Sánchez, E., Schreurs, D.
A preliminary study of different metrics for the validation of device and behavioral models
65th ARFTG Microwave Measurements Conference Digest 2005, : 71-781500571, 2005 | DOI

Conference Paper
Martín, F., Villaverde, M.P.
Automatic reading of Spanish identity cards
Proceedings of the Fourth IASTED International Conference on Visualization, Imaging, and Image Processing, : 211-216 452-054, 2004 | DOI

Conference Paper
Martín, F., Borges, D.
Automatic car plate recognition using a partial segmentation algorithm
Proceedings of the IASTED International Conference on Signal Processing, Pattern Reconition, and Applications, : 246-249, 2003 | DOI

Article
González-Castaño, F.J., Vales-Alonso, J., Pousada-Carballo, J.M., De Vicente, F.I., Fernández-Iglesias, M.J.
Real-time interception systems for the GSM protocol
IEEE Transactions on Vehicular Technology, 51(5): 904-914, 2002 | DOI

Conference Paper
Tasker, P.J., Fernández-Barciela, M.
HBT small signal T and p model extraction using a simple, robust and fully analytical procedure
IEEE MTT-S International Microwave Symposium Digest, 3: 2129-2132, 2002 | DOI

Conference Paper
Campos-Roca, Y., Verweyen, L., Fernandez-Barciela, M., Curras-Francos, M.C., Sanchez, E., Hulsmann, A., Schlechtweg, M.
Millimeter-wave active MMIC frequency multipliers
2001 31st European Microwave Conference, EuMC 2001, : 4140070, 2001 | DOI