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Filipe Miguel Esturrenho Barradas. Completed the Doutoramento in Programa Doutoral Em Engenharia Electrotécnica in 2017/01/31 by Universidade de Aveiro and Mestrado in Mestrado Integrado em Engenharia Electrónica e Telecomunicações in 2012/07/16 by Universidade de Aveiro. Is Researcher in Instituto de Telecomunicações. Published 9 articles in journals. Has received 7 awards and/or honors. In their professional activities interacted with 21 collaborator(s) co-authorship of scientific papers.
Identification

Personal identification

Full name
Filipe Miguel Esturrenho Barradas

Citation names

  • Barradas, Filipe

Author identifiers

Ciência ID
1A1B-D8B5-3724
ORCID iD
0000-0003-3002-9616

Knowledge fields

  • Engineering and Technology - Electrotechnical Engineering, Electronics and Informatics
  • Engineering and Technology - Electrotechnical Engineering, Electronics and Informatics

Languages

Language Speaking Reading Writing Listening Peer-review
English Advanced (C1) Advanced (C1) Advanced (C1) Advanced (C1)
Portuguese Advanced (C1) Advanced (C1) Advanced (C1) Advanced (C1)
French Beginner (A1) Beginner (A1) Beginner (A1) Beginner (A1)
Education
Degree Classification
2017/01/31
Concluded
 Programa Doutoral Em Engenharia Electrotécnica (Doutoramento)
Universidade de Aveiro, Portugal
"Modelação Comportamental e Pré-distorção Digital de Transmissores de Rádio-Frequência" (THESIS/DISSERTATION)
 Aprovado
2012/07/16
Concluded
 Mestrado Integrado em Engenharia Electrónica e Telecomunicações (Mestrado)
Universidade de Aveiro, Portugal
"Amplificadores Paramétricos de RF" (THESIS/DISSERTATION)
 18
Affiliation

Science

Category
Host institution 		Employer
2016/03/01 - Current Researcher (Research) Instituto de Telecomunicações, Portugal
Projects

Contract

Designation Funders
2020/09/01 - 2028/08/31 Joint Lab
Joint-Lab
Researcher
Instituto de Telecomunicações Campus Universitário de Santiago, Portugal
 Huawei Technologies Co Ltd Sweden
Ongoing
2020/09 - 2028/08 Joint Lab
Joint-Lab
 Huawei Technologies Co Ltd Sweden
2022/02 - 2023/07 PA Design for Multi-Input Transmitter for Wireless Radio
PA-MISO
Principal investigator
Instituto de Telecomunicações, Portugal
 Qorvo Inc
Ongoing
2022/01 - 2023/06 Digital Signal Generation for Multi-Input Transmitter for Wireless Radio
DSP-MISO
Principal investigator
Instituto de Telecomunicações Campus Universitário de Santiago, Portugal
 Xilinx Inc
Ongoing
2019 - 2021 OMIMO – Optimized MIMO transmitter for 5G
OMIMO
Researcher
Instituto de Telecomunicações Campus Universitário de Santiago, Portugal
 Fundação para a Ciência e a Tecnologia
Concluded
2016 - 2020 HLPA2MIMO – MIMO PA-antenna interaction
HLPA2MIMO
Researcher
Instituto de Telecomunicações, Portugal
 Ampleon
Concluded

Other

Designation Funders
2019 - 2021/12/31 GaNLin – GaN Linearity
GaNLin
Researcher
Instituto de Telecomunicações, Portugal
 Ampleon
Ongoing
2019 - 2020/08/31 Xiong Ji – Behavioral Models for RF Transistors
XiongJi
Researcher
Huawei Sweden Technologies AB R&D Institute
Ongoing
2016 - 2018 Rooster – MISO PA optimization
Rooster
Researcher
Instituto de Telecomunicações, Portugal
 Huawei Sweden Technologies AB R&D Institute
Concluded
2011 - 2015 DhPAM – Power Amplifier Modeling
DhPAM
PhD Student Fellow
Instituto de Telecomunicações, Portugal
 Huawei Sweden Technologies AB R&D Institute
Concluded
Outputs

Publications

Conference paper
  1. Santos, Gabriel; Gonçalves, Cristiano; Barros, Diogo; Purroy, Francesc; Nunes, Luis C.; Barradas, Filipe; Cabral, Pedro M.. "An Automatic Calibration Method for Vector Receiver Load Pull Systems". Paper presented in International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, Aveiro, 2023.
    10.1109/inmmic57329.2023.10321769
  2. Louro, João; Barradas, Filipe Miguel; Nunes, Luís Cótimos; Pedro, José Carlos. "Cardiff Behavioral Model from Passive Load-Pull while Enforcing S-Parameters". Paper presented in International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, Aveiro, 2023.
    10.1109/inmmic57329.2023.10321797
  3. Barradas, Filipe Miguel Esturrenho; Nunes, Luis Cótimos; Pedro, José Carlos. "Estimation and Sensitivity of Average Efficiency of RF PAs under Modulated Signal Stimulus". Paper presented in International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, Aveiro, 2023.
    10.1109/inmmic57329.2023.10321779
  4. Nunes, Luís Cótimos; Barradas, Filipe Miguel; Pedro, José Carlos. "Self-Conduction of the Auxiliar Amplifiers in Load-Modulation based PAs". 2023.
    10.1109/inmmic57329.2023.10321767
  5. Louro, João; Nunes, Luis; Barradas, Filipe; Pedro, José Carlos. "A Frequency-Domain Neural-Network Model for High-Power RF Transistors". Paper presented in International Conference on Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design, Funchal, 2023.
    10.1109/smacd58065.2023.10192169
  6. Asha Latha, Y. Mary; Nunes, Luís C.; Barradas, Filipe M.; Pedro, José C.. "The Role of Nonlinear Cout in Continuous Class F PAs". Paper presented in IEEE MTT-S International Microwave Symposium 2023, San Diego, 2023.
    10.1109/ims37964.2023.10188019
  7. Nunes, Luis C.; Gomes, Joao L.; Barradas, Filipe M.; Pedro, Jose C.. "A Simple Thermally Activated Trapping Model for AlGaN/GaN HEMTs". Paper presented in European Microwave Integrated Circuits Conference, Milan, 2022.
    10.23919/eumic54520.2022.9923433
  8. Gomes, Joao L.; Nunes, Luis C.; Barradas, Filipe M.; Pedro, Jose C.. "A Qualitative Explanation of the AlGaN/GaN HEMT Nonlinear Intrinsic Capacitances". Paper presented in International Workshop on Integrated Nonlinear Microwave and Millimetre-Wave Circuits, Cardiff, 2022.
    10.1109/inmmic54248.2022.9762169
  9. Goncalves, Cristiano F.; Barradas, Filipe M.; Nunes, Luis C.; Cabral, Pedro M.; Pedro, Jose C.. "Load Insensitive Doherty PA Using Load Dependent Supply Voltages". Paper presented in IEEE MTT-S International Microwave Symposium 2021, Atlanta, 2021.
    10.1109/ims19712.2021.9575009
  10. Tome, Pedro M.; Barradas, Filipe M.; Nunes, Luis C.; Gomes, Joao L.; Cunha, Telmo R.; Pedro, Jose C.. "A Transient Two-Tone RF Method for the Characterization of Electron Trapping Capture and Emission Dynamics in GaN HEMTs". Paper presented in IEEE MTT-S International Microwave Symposium 2020, Los Angeles, 2020.
    10.1109/ims30576.2020.9223802
  11. Goncalves, Cristiano F.; Barradas, Filipe M.; Nunes, Luis C.; Cabral, Pedro M.; Pedro, Jose C.. "Optimal Supply Voltage for PA Output Power Correction under Load Varying Scenarios". Paper presented in IEEE MTT-S International Microwave Symposium 2020, Los Angeles, 2020.
    10.1109/ims30576.2020.9223898
  12. Nunes, L.C.; Barradas, F.M.; Barros, D.R.; Cabral, P.M.; Pedro, J.C.; Barradas, Filipe. "Current Mode Outphasing Power Amplifier". 2019.
    10.1109/mwsym.2019.8701026
  13. Tome, P.M.; Barradas, F.M.; Cunha, T.R.; Pedro, J.C.. "Compensation of the Pulse-to-Pulse Instability of GaN HEMT-Based Power Amplifiers". 2019.
  14. Barradas, Filipe; Barradas, F.M.; Cunha, T.R.; Cabral, P.M.; Pedro, J.C.. "Magnetless RF Isolator Design Using Grounded Transistors". 2018.
    10.1109/mwsym.2018.8439394
  15. Filipe M. Barradas; Telmo R. Cunha; Pedro M. Cabral; Jose C. Pedro; Barradas, F.M.; Cunha, T.R.; Cabral, P.M.; Pedro, J.C.. "Modeling PA linearity and efficiency in MIMO transmitters". 2017.
    10.1109/mwsym.2017.8059058
  16. Filipe M. Barradas; Telmo R. Cunha; Jose C. Pedro; Barradas, F.M.; Cunha, T.R.; Pedro, J.C.. "Setup and calibration procedure for LPE PA characterization with synchronous input-output excitations". 2017.
    10.1109/arftg.2017.8000836
  17. Filipe M. Barradas; Telmo R. Cunha; Jose C. Pedro; Barradas, F.M.; Cunha, T.R.; Pedro, J.C.. "Digital predistortion of RF PAs for MIMO transmitters based on the equivalent load". 2017.
    10.1109/inmmic.2017.7927295
  18. Barradas, F.M.; Lavrador, P.M.; Cunha, T.R.; Pedro, J.C.; Filipe M. Barradas; Pedro M. Lavrador; Telmo R. Cunha; Jose C. Pedro. "Using statistical information for fast static DPD of RF PAs". 2017.
    10.1109/PAWR.2017.7875560
  19. Cunha, T.R.; Barradas, F.M.; Pedro, J.C.; Telmo R. Cunha; Filipe M. Barradas; Jose C. Pedro. "The two-tone model for power amplifier modeling". 2016.
    10.1109/EuMC.2016.7824536
  20. Filipe M. E. Barradas; Pedro M. Lavrador; Telmo R. Cunha; Jose C. Pedro; Barradas, F.M.E.; Lavrador, P.M.; Cunha, T.R.; Pedro, J.C.. "RF PA modeling with one chirp measurement". 2015.
    10.1109/eumc.2015.7345984
  21. Telmo R. Cunha; Filipe M. Barradas; Jose C. Pedro; Cunha, T.R.; Barradas, F.M.; Pedro, J.C.. "DPD tuning with frequency selective distortion minimization". 2015.
    10.1109/mwsym.2015.7166816
  22. Filipe M. Barradas; Telmo R. Cunha; Pedro M. Lavrador; Jose C. Pedro. "Higher locality non-linear basis functions of Volterra series based models to improve extraction conditioning". 2014.
    10.1109/mwsym.2014.6848447
  23. Filipe M. Barradas; Telmo R. Cunha; Pedro M. Lavrador; Jose C. Pedro. "Using spline basis functions in Volterra series based models". 2014.
    10.1109/inmmic.2014.6815079
  24. Barradas, F.M.; Cunha, T.R.; Lavrador, P.M.; Pedro, J.C.. "Using spline basis functions in Volterra series based models". 2014.
    10.1109/INMMIC.2014.6815079
  25. Barradas, F.M.; Cunha, T.R.; Lavrador, P.M.; Pedro, J.C.. "Higher locality non-linear basis functions of Volterra series based models to improve extraction conditioning". 2014.
    10.1109/MWSYM.2014.6848447
Journal article
  1. João Louro; Luís C. Nunes; Filipe M. Barradas; Telmo R. Cunha; Pedro M. Cabral; José C. Pedro. "A Hammerstein-Like Broadband ANN-Based Transistor Behavioral Model". IEEE Transactions on Microwave Theory and Techniques (2024): https://doi.org/10.1109/TMTT.2023.3330403.
    10.1109/TMTT.2023.3330403
  2. Filipe M. Barradas; Luís C. Nunes; João Louro; Diogo R. Barros; Pedro M. Cabral; José C. Pedro. "The Effect of IMD Drain Impedances in RF PA Concurrent Dual-Band Operation". IEEE Transactions on Microwave Theory and Techniques (2023): https://doi.org/10.1109/TMTT.2023.3240030.
    10.1109/TMTT.2023.3240030
  3. João L. Gomes; Filipe M. Barradas; Luís C. Nunes; José C. Pedro. "On the Energy Nonconservation in the FET’s Equivalent Circuit Capacitance Model". IEEE Transactions on Electron Devices (2023): https://doi.org/10.1109/TED.2023.3296712.
    10.1109/TED.2023.3296712
  4. Joao L. Gomes; Luis C. Nunes; Filipe M. Barradas; Adam Cooman; Aryan E. F. de Jong; Rob M. Heeres; Jose C. Pedro. "The Impact of Long-Term Memory Effects on the Linearizability of GaN HEMT-Based Power Amplifiers". IEEE Transactions on Microwave Theory and Techniques 70 2 (2022): 1377-1390. https://doi.org/10.1109/TMTT.2021.3132930.
    10.1109/TMTT.2021.3132930
  5. Cristiano F. Goncalves; Filipe M. Barradas; Luis C. Nunes; Pedro M. Cabral; Jose Carlos Pedro. "Quasi-Load Insensitive Doherty PA Using Supply Voltage and Input Excitation Adaptation". IEEE Transactions on Microwave Theory and Techniques (2022): 1-1. https://doi.org/10.1109/TMTT.2021.3112168.
    10.1109/TMTT.2021.3112168
  6. Joao Louro; Catarina Belchior; Diogo R. Barros; Filipe M. Barradas; Luis C. Nunes; Pedro M. Cabral; Jose C. Pedro. "New Transistor Behavioral Model Formulation Suitable for Doherty PA Design". IEEE Transactions on Microwave Theory and Techniques 69 4 (2021): 2138-2147. https://doi.org/10.1109/TMTT.2021.3054645.
    10.1109/TMTT.2021.3054645
  7. Cristiano F. Goncalves; Filipe M. Barradas; Luis C. Nunes; Pedro M. Cabral; Jose Carlos Pedro. "Dynamic Supply Voltage Control for PA Output Power Correction Under Variable Loading Scenarios". IEEE Transactions on Microwave Theory and Techniques 69 1 (2021): 745-755. https://doi.org/10.1109/TMTT.2020.3037963.
    10.1109/TMTT.2020.3037963
  8. Pedro M. Tome; Filipe M. Barradas; Luis C. Nunes; Joao L. Gomes; Telmo R. Cunha; Jose C. Pedro. "Characterization, Modeling, and Compensation of the Dynamic Self-Biasing Behavior of GaN HEMT-Based Power Amplifiers". IEEE Transactions on Microwave Theory and Techniques 69 1 (2021): 529-540. https://doi.org/10.1109/TMTT.2020.3006290.
    10.1109/TMTT.2020.3006290
  9. Cristiano F. Goncalves; Filipe M. Barradas; Luis C. Nunes; Pedro M. Cabral; Jose Carlos Pedro. "A Compact Impedance Measurement Solution for Systems Operating in Load Varying Scenarios". IEEE Access 9 (2021): 38757-38766. https://doi.org/10.1109/ACCESS.2021.3063915.
    10.1109/ACCESS.2021.3063915
  10. Pedro M. Tome; Filipe M. Barradas; Telmo R. Cunha; Jose C. Pedro. "A Multiple-Time-Scale Analog Circuit for the Compensation of Long-Term Memory Effects in GaN HEMT-Based Power Amplifiers". IEEE Transactions on Microwave Theory and Techniques 68 9 (2020): 3709-3723. https://doi.org/10.1109/TMTT.2020.3007713.
    10.1109/TMTT.2020.3007713
  11. Filipe M. Barradas; Pedro M. Tome; Telmo R. Cunha; Jose C. Pedro. "Compensation of Power Amplifier Long-Term Memory Behavior for Pulsed Radar Applications". IEEE Transactions on Microwave Theory and Techniques 67 12 (2019): 5249-5256. https://doi.org/10.1109/TMTT.2019.2940185.
    10.1109/TMTT.2019.2940185
  12. Cristiano Gonçalves; Filipe Barradas; cabral pm; Jose Carlos Pedro. "Switch-Based Variable Length Stubs Network for PA Load Sensitivity Reduction". IEEE Access 7 - (2019): 152576-152584. http://www.it.pt/Publications/PaperJournal/29646.
    10.1109/ACCESS.2019.2948277
  13. Christian Fager; Thomas Eriksson; Filipe Barradas; Katharina Hausmair; Telmo Cunha; Jose Carlos Pedro. "Linearity and Efficiency in 5G Transmitters: New Techniques for Analyzing Efficiency, Linearity, and Linearization in a 5G Active Antenna Transmitter Context". IEEE Microwave Magazine 20 5 (2019): 35-49. http://www.it.pt/Publications/PaperJournal/28307.
    10.1109/MMM.2019.2898020
  14. Pedro M. Tome; Filipe M. Barradas; Telmo R. Cunha; Jose Carlos Pedro. "Hybrid Analog/Digital Linearization of GaN HEMT-Based Power Amplifiers". IEEE Transactions on Microwave Theory and Techniques 67 1 (2019): 288-294. https://doi.org/10.1109/TMTT.2018.2880911.
    10.1109/TMTT.2018.2880911
  15. Sara Teodoro; Adao Silva; Rui Dinis; Filipe M. Barradas; Pedro M. Cabral; Atilio Gameiro. "Theoretical Analysis of Nonlinear Amplification Effects in Massive MIMO Systems". IEEE Access 7 (2019): 172277-172289. https://doi.org/10.1109/ACCESS.2019.2956596.
    10.1109/ACCESS.2019.2956596
  16. Filipe M. Barradas; Pedro M. Tome; Jose M. Gomes; Telmo R. Cunha; Pedro M. Cabral; Jose C. Pedro. "Power, Linearity, and Efficiency Prediction for MIMO Arrays With Antenna Coupling". IEEE Transactions on Microwave Theory and Techniques 65 12 (2017): 5284-5297. https://doi.org/10.1109/TMTT.2017.2766067.
    10.1109/TMTT.2017.2766067
  17. Filipe M. Barradas; Luis C. Nunes; Telmo R. Cunha; Pedro M. Lavrador; Pedro M. Cabral; Jose C. Pedro. "Compensation of Long-Term Memory Effects on GaN HEMT-Based Power Amplifiers". IEEE Transactions on Microwave Theory and Techniques 65 9 (2017): 3379-3388. https://doi.org/10.1109%2Ftmtt.2017.2671368.
    10.1109/tmtt.2017.2671368
  18. Daniel C. Dinis; Rui F. Cordeiro; Filipe M. Barradas; Arnaldo S. R. Oliveira; Jose Vieira. "Agile Single- and Dual-Band All-Digital Transmitter Based on a Precompensated Tunable Delta–Sigma Modulator". IEEE Transactions on Microwave Theory and Techniques (2016): 1-11. http://dx.doi.org/10.1109/TMTT.2016.2622696.
    10.1109/TMTT.2016.2622696
  19. Filipe M. Barradas; Luis C. Nunes; Jose C. Pedro; Telmo R. Cunha; Pedro M. Lavrador; Pedro M. Cabral. "Accurate Linearization with Low-Complexity Models Using Cascaded Digital Predistortion Systems". IEEE Microwave Magazine 16 1 (2015): 94-103. https://doi.org/10.1109%2Fmmm.2014.2367864.
    10.1109/mmm.2014.2367864
  20. Barradas, F.M.; Nunes, L.C.; Pedro, J.C.; Cunha, T.R.; Lavrador, P.M.; Cabral, P.M.. "Accurate linearization with low-complexity models using cascaded digital predistortion systems". IEEE Microwave Magazine 16 1 (2015): 94-103. http://www.scopus.com/inward/record.url?eid=2-s2.0-84921342748&partnerID=MN8TOARS.
    10.1109/MMM.2014.2367864
  21. Barradas, F.M.; Cunha, T.R.; Lavrador, P.M.; Pedro, J.C.; Filipe M. Barradas; Telmo R. Cunha; Pedro M. Lavrador; Jose C. Pedro. "Polynomials and LUTs in pa behavioral modeling: A fair theoretical comparison". IEEE Transactions on Microwave Theory and Techniques 62 12 (2014): 3274-3285. http://www.scopus.com/inward/record.url?eid=2-s2.0-84915828153&partnerID=MN8TOARS.
    10.1109/TMTT.2014.2365188
Activities

Oral presentation

Presentation title Event name
Host (Event location)
2021/01/19 GaN Long-Term Memory Compensation Understanding the Device Physics to Achieve Better System Performance IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications
IEEE (Atlanta, United States)
2018 Prediction and Compensation of PA Linearity and Efficiency in MIMO scenarios European Microwave Conference (EuMC2018)
EuMA (Madrid, Spain)
2018 Long-Term Memory Effects in GaN Devices: From Modeling to Compensation European Microwave Conference (EuMC2018)
EuMA (Madrid, Spain)
2017 NVNA Measurements for 5G Active Antenna Array Behavioral Modeling IEEE MTT-S International Microwave Symposium 2017 (IMS2017)
IEEE (Honululu, United States)
2017 MIMO Transmitter Modeling for Simultaneous Linearity and Efficiency Optimization IEEE MTT-S International Microwave Symposium 2017 (IMS2017)
IEEE (Honululu, United States)
2016 Wideband power amplifier linearization: from active device distortion to DPD compensation IEEE Radio Wireless Week
IEEE (Austin, United States)

Supervision

Thesis Title
Role 		Degree Subject (Type)
Institution / Organization
2022 - Current System-Level Modeling for Wireless Transmitter Simulation
Co-supervisor
 Engenharia Eletrotécnica (PhD)
Universidade de Aveiro, Portugal
2020 - 2021 Bancada de Linearização para Amplificadores de Potência destinados a Sistemas 5G
Co-supervisor
 Engenharia Electrónica e de Telecomunicações (Master)
Universidade de Aveiro, Portugal
2017 - 2020 Characterization, Modeling and Compensation of Long-term Memory Effects in GaN HEMT-based Radiofrequency Power Amplifiers
Co-supervisor
 MAP-TELE (PhD)
Universidade do Minho, Portugal

Universidade de Aveiro, Portugal

Universidade do Porto, Portugal

Conference scientific committee

Conference name Conference host
2023/09/01 - Current IEEE Topical Conference on RF/microwave Power Amplifiers for Radio and Wireless Applications 2024
2022/09/01 - Current IEEE Topical Conference on RF/microwave Power Amplifiers for Radio and Wireless Applications 2023
2021/09/01 - Current IEEE Topical Conference on RF/microwave Power Amplifiers for Radio and Wireless Applications 2022
2020/09/01 - Current IEEE Topical Conference on RF/microwave Power Amplifiers for Radio and Wireless Applications 2021
2019/09/01 - Current IEEE Topical Conference on RF/microwave Power Amplifiers for Radio and Wireless Applications 2020

Course / Discipline taught

Academic session Degree Subject (Type) Institution / Organization
2019 - Current 2h of Laboratory work. Introdução à Análise e Processamento de Sinal (Licenciatura) Universidade de Aveiro, Portugal
2018 - Current 4h of Laboratory classes divided in 2h for 2 groups. Sistemas Multimédia (Mestrado) Universidade de Aveiro, Portugal
2018 - Current 4h of laboratory classes divided in 2h for 2 groups Programação em Matlab (Licenciatura) Universidade de Aveiro, Portugal
Distinctions

Award

2024 2024 IEEE Microwave Prize Award of the IEEE Microwave Theory and Technology Society
IEEE, United States
2022 Huawei Corporate-Level Excellent Technical Cooperation Project 2022
Huawei Technologies Co Ltd Nanjing, China
2022 2022 EuMIC Prize
2016 Best Collaboration Award with Huawei Wireless
Huawei Technologies Co Ltd Nanjing, China

Other distinction

2015 Power Amplifier Linearization Through Digital Pre-Distortion Student Design Competition, Second Place
IEEE Microwave Theory and Techniques Society, United States
2014 Power Amplifier Linearization Through Digital Pre-Distortion Student Design Competition, First Place
IEEE Microwave Theory and Techniques Society, United States
2012 Prémios de Excelência 2010/2011
2011 Prémios de Excelência 2009/2010
2010 Prémios de Excelência 2008/2009
2009 Bolsa de Mérito
Universidade de Aveiro, Portugal
2007 Bolsas de Estudo Melhores Caloiros da Universidade de Aveiro
Universidade de Aveiro, Portugal