Linearity and efficiency in 5G transmitters: New techniques for analyzing efficiency, linearity, and linearization in a 5G active antenna transmitter context C Fager, T Eriksson, F Barradas, K Hausmair, T Cunha, JC Pedro IEEE Microwave Magazine 20 (5), 35-49, 2019 | 152 | 2019 |
Power, linearity, and efficiency prediction for MIMO arrays with antenna coupling FM Barradas, PM Tome, JM Gomes, TR Cunha, PM Cabral, JC Pedro IEEE Transactions on Microwave Theory and Techniques 65 (12), 5284-5297, 2017 | 66 | 2017 |
Compensation of long-term memory effects on GaN HEMT-based power amplifiers FM Barradas, LC Nunes, TR Cunha, PM Lavrador, PM Cabral, JC Pedro IEEE Transactions on Microwave Theory and Techniques 65 (9), 3379-3388, 2017 | 57 | 2017 |
Hybrid analog/digital linearization of GaN HEMT-based power amplifiers PM Tomé, FM Barradas, TR Cunha, JC Pedro IEEE Transactions on microwave theory and techniques 67 (1), 288-294, 2018 | 33 | 2018 |
Theoretical analysis of nonlinear amplification effects in massive MIMO systems S Teodoro, A Silva, R Dinis, FM Barradas, PM Cabral, A Gameiro IEEE Access 7, 172277-172289, 2019 | 30 | 2019 |
Polynomials and LUTs in PA behavioral modeling: A fair theoretical comparison FM Barradas, TR Cunha, PM Lavrador, JC Pedro IEEE Transactions on microwave theory and techniques 62 (12), 3274-3285, 2014 | 29 | 2014 |
Agile single-and dual-band all-digital transmitter based on a precompensated tunable delta–sigma modulator DC Dinis, RF Cordeiro, FM Barradas, ASR Oliveira, J Vieira IEEE Transactions on Microwave Theory and Techniques 64 (12), 4720-4730, 2016 | 22 | 2016 |
Switch-based variable length stubs network for PA load sensitivity reduction CF Goncalves, FM Barradas, PM Cabral, JC Pedro IEEE Access 7, 152576-152584, 2019 | 19 | 2019 |
Dynamic supply voltage control for PA output power correction under variable loading scenarios CF Gonçalves, FM Barradas, LC Nunes, PM Cabral, JC Pedro IEEE Transactions on Microwave Theory and Techniques 69 (1), 745-755, 2020 | 18 | 2020 |
Quasi-load insensitive Doherty PA using supply voltage and input excitation adaptation CF Gonçalves, FM Barradas, LC Nunes, PM Cabral, JC Pedro IEEE Transactions on Microwave Theory and Techniques 70 (1), 779-789, 2021 | 16 | 2021 |
Digital predistortion of RF PAs for MIMO transmitters based on the equivalent load FM Barradas, TR Cunha, JC Pedro 2017 Integrated Nonlinear Microwave and Millimetre-wave Circuits Workshop …, 2017 | 16 | 2017 |
The impact of long-term memory effects on the linearizability of GaN HEMT-based power amplifiers JL Gomes, LC Nunes, FM Barradas, A Cooman, AEF de Jong, RM Heeres, ... IEEE Transactions on Microwave Theory and Techniques 70 (2), 1377-1390, 2021 | 15 | 2021 |
New transistor behavioral model formulation suitable for Doherty PA design J Louro, C Belchior, DR Barros, FM Barradas, LC Nunes, PM Cabral, ... IEEE Transactions on Microwave Theory and Techniques 69 (4), 2138-2147, 2021 | 15 | 2021 |
Characterization, modeling, and compensation of the dynamic self-biasing behavior of GaN HEMT-based power amplifiers PM Tomé, FM Barradas, LC Nunes, JL Gomes, TR Cunha, JC Pedro IEEE Transactions on Microwave Theory and Techniques 69 (1), 529-540, 2020 | 14 | 2020 |
Accurate linearization with low-complexity models using cascaded digital predistortion systems FM Barradas, LC Nunes, JC Pedro, TR Cunha, PM Lavrador, PM Cabral IEEE microwave magazine 16 (1), 94-103, 2015 | 13 | 2015 |
A review of memory effects in AlGaN/GaN HEMT based RF PAs J Pedro, P Tomé, T Cunha, F Barradas, L Nunes, P Cabral, J Gomes 2021 IEEE MTT-S International Wireless Symposium (IWS), 1-3, 2021 | 12 | 2021 |
Current mode outphasing power amplifier LC Nunes, FM Barradas, DR Barros, PM Cabral, JC Pedro 2019 IEEE MTT-S International Microwave Symposium (IMS), 1160-1163, 2019 | 11 | 2019 |
A compact impedance measurement solution for systems operating in load varying scenarios CF Gonçalves, FM Barradas, LC Nunes, PM Cabral, JC Pedro IEEE Access 9, 38757-38766, 2021 | 7 | 2021 |
A multiple-time-scale analog circuit for the compensation of long-term memory effects in GaN HEMT-based power amplifiers PM Tomé, FM Barradas, TR Cunha, JC Pedro IEEE Transactions on Microwave Theory and Techniques 68 (9), 3709-3723, 2020 | 7 | 2020 |
Compensation of the pulse-to-pulse instability of GaN HEMT-based power amplifiers PM Tome, FM Barradas, TR Cunha, JC Pedro 2019 IEEE MTT-S International Microwave Symposium (IMS), 408-411, 2019 | 6 | 2019 |