Pedro Miguel Ribeiro Lavrador

Pedro Lavrador

Academic position:	Assistant Professor
Joining date:	01-10-2000
Roles in IT:	Researcher
Thematic Line:	Wireless Technologies
Group:	Wireless Circuits – Av

Email: Send Email
Address: IT – Aveiro
Instituto de Telecomunicações
Campus Universitário de Santiago
P-3810-193 AVEIRO - PORTUGAL
Tel: +351 234 377 900
Fax: +351 234 377 901

https://www.orcid.org/0000-0003-0937-7835

Scientific Achievements

Degrees

PhD, Universidade de Aveiro, 01-01-2007
Licenciatura, Universidade de Aveiro, 15-07-2001

Affiliations

IEEE, 01-10-2001,

Expertise Topics

Power Amplifier Behavioural Modeling
Predistortion and Linearization

Academic Activities

3Lecture courses

Arquitectura de Computadores II, Universidade de Aveiro, Mestr. Int. Engenharia Electrónica e de Computadores
Arquitectura de Computadores I, Universidade de Aveiro, Mest. Int. Eng. Electrónica e Telecomunicações
Introdução às Tecnologias da Informação e Comunica, Universidade de Aveiro, Licenciatura em Turismo

1Supervision of PhD theses

As Supervisor

Modelação Comportamental e Pre-Distorção Digital de Transmissores de RF, PhD Student, Filipe Miguel Esturrenho Barradas, Defended 01-2017

1Supervision of MSc theses

As Supervisor

Design and Implementation of a low cost RF laboratoty, MSc Student, Bruno Ricardo Lito Reis, Concluded 10-2017

Publications

8Papers in Journals

F. M. B. Barradas, L. C. Nunes, T.R. Cunha, P.M.L. Lavrador, P. M. Cabral, J. C. Pedro, Compensation of Long-Term Memory Effects on GaN HEMT-Based Power Amplifiers, IEEE Transactions on Microwave Theory and Techniques, Vol. 65, No. 9, pp. 3379 - 3388, March, 2017,
| Abstract | BibTex
JPFG Gonçalves, C. M. Martins, F. P. Guiomar, T.R. Cunha, J. C. Pedro, A. N. Pinto, P.M.L. Lavrador, Nonlinear compensation with DBP aided by memory polynomial, Optics Express, Vol. 24, No. 26, pp. 30309 - 30316, December, 2016,
| Abstract | BibTex
F. M. B. Barradas, L. C. Nunes, J. C. Pedro, T.R. Cunha, P.M.L. Lavrador, P. M. Cabral, Accurate Linearization with Low-Complexity Models Using Cascaded Digital Predistortion Systems, IEEE Microwave Magazine, Vol. 16, No. 1, pp. 94 - 103, February, 2015 | BibTex
F. M. B. Barradas, T.R. Cunha, P.M.L. Lavrador, J. C. Pedro, Polynomials and LUTs in PA behavioral modeling: a fair theoretical comparison, IEEE Transactions on Microwave Theory and Techniques, Vol. 62, No. 12, pp. 3274 - 3284, December, 2014 | BibTex
J. C. Pedro, P. M. Cabral, T.R. Cunha, P.M.L. Lavrador, A Multiple Time-Scale Power Amplifier Behavioral Model for Linearity and Efficiency Calculations, IEEE Transactions on Microwave Theory and Techniques, Vol. 61, No. 1, pp. 606 - 615, January, 2013,
| Abstract | Full text (PDF 2 MBs) | BibTex
P.M.L. Lavrador, T.R. Cunha, P. M. Cabral, J. C. Pedro, RF Power Amplification: Current Trends on the Linearity-Efficiency Compromise, IEEE Microwave Magazine, Vol. 11, No. 5, pp. 44 - 58, August, 2010 | BibTex
P. L. Gilabert Gilabert, P.M.L. Lavrador, J. C. Pedro, Improvements and Analysis of Nonlinear Parallel Behavioral Models, Intrnl. Journal of RF and Microwave Computer-Aided Engineering, Vol. 19, No. 5, pp. 615 - 626, September, 2009 | BibTex
P.M.L. Lavrador, N.B.C. Carvalho, J. C. Pedro, Evaluation of signal-to-noise and distortion ratio degradation in nonlinear systems, IEEE Transactions on Microwave Theory and Techniques, Vol. 52, No. 3, pp. 813 - 822, March, 2004 | BibTex

22Papers in Conferences

F. M. B. Barradas, P.M.L. Lavrador, T.R. Cunha, J. C. Pedro, Using statistical information for fast static DPD of RF PAs, IEEE Topical Conf. on RF Power Amplifiers for Radio and Wireless Applications - PAWR, Phoenix, United States, Vol. 1, pp. 1 - 3, January, 2017,
| Abstract | BibTex
F. M. B. Barradas, P.M.L. Lavrador, T.R. Cunha, J. C. Pedro, Characterizing direct and cross memory in RF nonlinear systems using simple two tone measurements, European Microwave Week/European Microwave Conf., London, United Kingdom, Vol. 1, pp. 1 - 3, October, 2016,
| Abstract | BibTex
JPFG Gonçalves, P.M.L. Lavrador, F. P. Guiomar, A. N. Pinto, T.R. Cunha, J. C. Pedro, Nonlinear Behavioral Modeling Equalization Techniques for Optical Transmission Systems, Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 1 - 3, September, 2015,
| Abstract | BibTex
F. M. B. Barradas, P.M.L. Lavrador, T.R. Cunha, J. C. Pedro, Reducing model extraction complexity using cascaded predistortion, Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 1 - 3, September, 2015,
| Abstract | BibTex
F. M. B. Barradas, P.M.L. Lavrador, T.R. Cunha, J. C. Pedro, RF PA modeling with one chirp measurement, European Microwave Week/European Microwave Conf., Paris, France, Vol. 1, pp. 1 - 4, September, 2015,
| Abstract | BibTex
F. M. B. Barradas, T.R. Cunha, P.M.L. Lavrador, J. C. Pedro, Higher locality non-linear basis functions of Volterra series based models to improve extraction conditioning, IEEE International Microwave Theory and Tech. Symp., Tampa FL, United States, Vol. 1, pp. 1 - 4, June, 2014 | BibTex
F. M. B. Barradas, T.R. Cunha, P.M.L. Lavrador, J. C. Pedro, Using spline basis functions in Volterra series based models, International Workshop on Integrated Nonlinear Microwave and Millimeter-Wave Circuits - INMMIC, Leuven, Belgium, Vol. 1, pp. 1 - 3, April, 2014 | BibTex
J. C. Pedro, L. C. Nunes, P.M.L. Lavrador, A New Large-Signal Intermodulation and Spurious Analysis Tool, IEEE International Microwave Theory and Tech. Symp., Seattle, United States, Vol. 1, pp. 1 - 1, June, 2013 | BibTex
J. C. Pedro, P. M. Cabral, T.R. Cunha, P.M.L. Lavrador, A New Power Amplifier Behavioral Model for Simultaneous Linearity and Efficiency Calculations, IEEE International Microwave Theory and Tech. Symp., Quebec, Canada, Vol. 1, pp. 00 - 00, June, 2012,
| Abstract | Full text (PDF 793 KBs) | BibTex
T.R. Cunha, P.M.L. Lavrador, E. Gonçalves Lima, J. C. Pedro, Rational function-based model with memory for power amplifier behavioral modeling, Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC, Wien, Austria, Vol. 1, pp. 1 - 4, April, 2011 | BibTex
P.M.L. Lavrador, J. C. Pedro, A Volterra Series Model for the System Level Simulation of a Wide Range of Wireless RF Blocks, Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC, Goteborg, Sweden, April, 2010,
| Abstract | BibTex
P.M.L. Lavrador, J. C. Pedro, Validation of a Behavioral Model based on Volterra Series with coefficients determined orthogonally, Conf. on Telecommunications - ConfTele, Feira, Portugal, Vol. -, pp. -- - --, May, 2009,
| Abstract | BibTex
C. Fager, P.M.L. Lavrador, A. Zhu, J. C. Pedro, System Level Modelling of RF Power Amplifiers Based on Large-Signal Measurements, European Microwave Conf. - EMC, Munich, Germany, Vol. 1, pp. 131 - 134, October, 2007 | BibTex
J. C. Pedro, P.M.L. Lavrador, J. C. Pedro, A Frequency Domain Extraction Procedure of Low-Pass Equivalent Behavioural Models of Microwave PAs, European Microwave Conf. - EMC, Manchester, United Kingdom, Vol. 1, pp. 253 - 256, September, 2006 | BibTex
J. C. Pedro, P.M.L. Lavrador, N.B.C. Carvalho, A Formal Procedure for Microwave Power Amplifier Behavioral Modeling, IEEE International Symp. on Microwave Theory and Tech., San Francisco, United States, Vol. 2, pp. 848 - 851, June, 2006 | BibTex
P.M.L. Lavrador, J. C. Pedro, N.B.C. Carvalho, A new method for the orthogonal extraction of the Volterra series coefficients, Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC, Aveiro, Portugal, Vol. 1, pp. 138 - 141, January, 2006 | BibTex
P.M.L. Lavrador, J. C. Pedro, N.B.C. Carvalho, A new Volterra series based orthogonal behavioral model for power amplifiers, Asia Pacific Microwave Conf. - APMC, Suzhou, China, Vol. 1, pp. - - -, December, 2005 | BibTex
P.M.L. Lavrador, J. C. Pedro, N.B.C. Carvalho, A New Nonlinear Behavioral Model Extracted Orthogonally, Conf. on Design of Circuits and Integrated Systems, Lisbon, Portugal, Vol. -, pp. - - -, November, 2005 | BibTex
P.M.L. Lavrador, J. C. Pedro, N.B.C. Carvalho, A New Nonlinear Quasi-Orthogonal Model Extracted in the Frequency Domain, Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. -, pp. - - -, April, 2005 | BibTex
J. C. Pedro, N.B.C. Carvalho, P.M.L. Lavrador, Modeling Nonlinear Behavior of Band-Pass Memoryless and Dynamic Systems, IEEE International Symp. on Microwave Theory and Tech., Philadelphia, United States, Vol. CD-ROM, pp. ---- - ----, June, 2003 | BibTex
P.M.L. Lavrador, N.B.C. Carvalho, J. C. Pedro, Noise and distortion figure - an extension of noise figure definition for nonlinear devices, IEEE International Microwave Theory and Tech. Symp., Philadelphia, United States, Vol. 3, pp. 2137 - 2140, June, 2003 | BibTex
P.M.L. Lavrador, J. C. Pedro, N.B.C. Carvalho, Underlying Linear System Identification of Memoryless and Dynamic Nonlinear Systems, Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. -, pp. - - -, June, 2003 | BibTex

Projects

Currently running projects1

Acronym	Name	Funding Agency	Start date	Ending date
ORCIP	Optical Radio Convergence Infrastructure for Communications and Power Delivering	PO Centro	01-05-2017	30-04-2029

Closed Projects9

Acronym	Name	Funding Agency	Start date	Ending date
DIPPAL	Digital Predistortion for Power Amplifier Linearization	IT/LA	01-01-2009	01-12-2010
Lin5GPA	Power Amplifier Linearization for 5G	FCT/PTDC	01-05-2016	01-04-2018
NGTVD	NGTvD - Next generation Digital Tv over Fiber	QREN, Televés	01-03-2010	01-12-2011
nodeSipher	Nonlinear modeling of silicon photonics electro-optic modulators	IT/LA	01-01-2017	01-12-2018
OALMT	Optimização de Amplificadores Linearizados em Presença de Sinais Reais Multi-Tom	CRUP	01-01-2003	31-12-2004
PANORAMA	PANORAMA - Plataforma Rádio	PT Inovação	01-01-2009	01-06-2011
SOPAS	Self-Oscillating Radio Frequency Power Amplifiers	FCT/PTDC	01-02-2011	01-05-2013
TARGET	Top Amplifier Research Group in an European Team	EU	01-01-2004	31-12-2006
VADONetC	Simplified Volterra analysis for dynamical optical networks compensation	IT/LA	01-06-2014	01-05-2016

Other Scientific Achievements

1Awards

J. C. Pedro, T.R. Cunha, P. M. Cabral, P.M.L. Lavrador, Annual Collaboration Team Award, O Projecto de Investigação com a empresa Huawei Technologies Sweden, AB., foi agraciado com o Prémio “Annual Collaboration Team Award” atribuído pela multinacional chinesa Huawei Technologies, Co. Ltd., 01-12-2015

1Short Courses and Seminars

F. M. B. Barradas, T.R. Cunha, P. M. Tomé, P.M.L. Lavrador, P. M. Cabral, L. C. Nunes, J. C. Pedro, Prediction and Compensation of PA Linearity and Efficiency in MIMO scenarios, Spain, Madrid, 09-2018

Other Contributions

1Refereeing Journals

IEEE Transactions on Microwave Theory and Techniques
2013, 1 review(s); 2009, 1 review(s);

3Refereeing Conferences

IEEE International Microwave Workshop Series on ''RF Front-ends for Software Defined and Cognitive Radio Solutions'' - IMWS
2010, 1 review(s);
Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC
2008, 1 review(s);
2011, 1 review(s);

IT Member Profile

Pedro Lavrador

Scientific Achievements

As Supervisor

As Supervisor

Currently running projects1

Closed Projects9