Academic position:
Full Professor
Joining date:
01-01-1999
Role in IT: Scientific Area Coordinator Scientific Area: Wireless Communications
Group: Radio Systems – Av
Degrees
- Agregação, Universidade de Aveiro, 01-01-2009 - PhD, Universidade de Aveiro, 01-01-2000 - Licenciatura, Universidade de Aveiro, 01-07-1995
Expertise Topics
- Software Defined Radio - Nonlinear Distortion - Indoor Location - Cognitive Radio Transceivers - Wireless Power Transmission
Affiliations
- URSI, Member, 01-10-2005
- MTT-11 Technical Committee Member, Member, 01-10-2005
- European Microwave Association, Member, 01-10-2004
- ARFTG, Member, 01-01-2000
- Universidade de Aveiro , Associate Professor com Agregação, 01-10-1997
- Ordem dos Engenheiros, Member, 01-08-1995
- IEEE, Senior Member, 01-09-1993
- Cruz, P.M.; Carvalho, N.B.C.; "Characterization of Software Defined and Cognitive Radio Front-Ends for Multi-mode Operation" - Chapter in Microwave and Millimeter Wave Circuits and Systems: Emerging Design, Technologies and Applications, A. Georgiadis, H. Rogier, L. Roselli and P. Arcioni, Wiley, Chichester, UK,
2012.
- g Bonifácio; André, P.S; Carvalho, N.B.C.; "RESONANT WIRELESS POWER TRANSMISSION" - Chapter in Advances in Energy Research – Volume 8, Morena V. Acosta, Nova Publisher, New york,
2011.
- Cruz, P.M.; Gomes, H.G.; Carvalho, N.B.C.; "Receiver Front-End Architectures - Analysis and Evaluation" - Chapter in Advanced Microwave and Millimeter Wave Technologies Semiconductor Devices Circuits and Systems, Moumita Mukherjee, In-Tech, Austria,
2010.
- Pedro, J. C.; Carvalho, N.B.C.; "Mixed Time and Frequency Domain Behavioral Modeling and Simulation" - Chapter in Fundamentals of Nonlinear Behavioral Modeling - Foundations and Applications, J. Wood and D. Root, Artech House, Norwood,
2005.
- Carvalho, N.B.C.; "Nonlinear Distortion Measurement Techniques" - Chapter in Characterization and Modelling Approaches for Advanced Linearisation Techniques, José Angel Garcia, Springer, India,
2005.
Papers in Journals [50]
- Liu, Z.; Violas, M.; Carvalho, N.B.C.; "Modeling and Simulation of a Reflective Semiconductor Optical Amplifier Modulator Using X-Parameters® ", IEEE Photonics Technology Letters, Vol. 25, No. 3, pp. 272 - 274, February, 2013.
| BibTex
- Liu, Z.; Violas, M.; Carvalho, N.B.C.; "Wideband Dynamic Behavioral Modeling of Reflective Semiconductor Optical Amplifiers Using a Tapped-Delay Multilayer Perceptron", Optics Express, Vol. 21, No. 3, pp. 3354 - 3362, February, 2013.
| BibTex
- Silva, N.V.S.; Oliveira, A.O.; Carvalho, N.B.C.; "Design and Optimization of Flexible and Coding Efficient All-Digital RF Transmitters", IEEE Trans. on Microwave Theory and Tech., Vol. 61, No. 1, pp. 625 - 632, January, 2013. Abstract
| BibTex
- Boaventura, A.; Carvalho, N.B.C.; "Extending Reading Range of Commercial RFID Readers", IEEE Trans. on Microwave Theory and Tech., Vol. 61, No. 1, pp. 48 - 57, January, 2013. Abstract
| BibTex
- Gonçalves, R.; Pinho, P.; Carvalho, N.B.C.; "Compact, Frequency Reconfigurable, Printed Monopole Antenna", Intrnl. Journal of Antennas and Propagation, Vol. 2012, No. 2012, pp. 1 - 6, November, 2012.
| BibTex
- Brás, L.; Carvalho, N.B.C.; Pinho, P.; L. K. Kulas; K. N. Nyka; "A Review of Antennas for Indoor Positioning Systems", Intrnl. Journal of Antennas and Propagation, Vol. 2012, No. 953269, pp. 1 - 14, October, 2012. Abstract
| BibTex
- M. Cascalheira; Pinho, P.; ; Carvalho, N.B.C.; "Indoor Guidance System for the Blind and the Visually Impaired", IET Microwaves Antennas & Propagation , Vol. 6, No. 10, pp. 1149 - 1157, July, 2012.
| BibTex
- Silva, N.V.S.; Oliveira, A.O.; U.G. Gustavsson; Carvalho, N.B.C.; "A Novel All-Digital Multichannel Multimode RF Transmitter Using Delta-Sigma Modulation", IEEE Microwave Wireless and Components Letters, Vol. 22, No. 3, pp. 156 - 158, March, 2012. Abstract
| BibTex
- Liu, Z.; Violas, M.; Carvalho, N.B.C.; "Analysis on Dynamic Characteristics of Reflective Semiconductor Optical Amplifier Based on a Memory Polynomial Model", Microwave and Optical Tech. Letters, Vol. 54, No. 3, pp. 805 - 808, March, 2012. Abstract
| BibTex
- Brás, L.; Carvalho, N.B.C.; Pinho, P.; "Pentagonal Patch-Excited Sectorized Antenna for Localization Systems", IEEE Trans. on Antennas and Propagation, Vol. 60, No. 3, pp. 1634 - 1638, March, 2012. Abstract
| BibTex
- Liu, Z.; Violas, M.; Carvalho, N.B.C.; "Digital Predistortion for RSOAs as External Modulators in Radio over Fiber Systems", Optics Express, Vol. 19, No. 18, pp. 17641 - 17646, August, 2011. Abstract
| BibTex
- Gomes, H.G.; Carvalho, N.B.C.; A. R. T. Testera; M. B. Barciela; K. R. Remley; "Diode Power Probe Measurements of Wireless Signals", IEEE Trans. on Microwave Theory and Tech., Vol. 59, No. 4, pp. 987 - 997, April, 2011.
| BibTex
- Cruz, P.M.; Carvalho, N.B.C.; "Wideband Behavioral Model for Nonlinear Operation of Bandpass Sampling Receivers", IEEE Trans. on Microwave Theory and Tech., Vol. 59, No. 4, pp. 1006 - 1015, April, 2011.
| BibTex
- Carvalho, N.B.C.; "MTT-S Workshop Series (IMWS) and MGA Committee News [Around the Globe]", IEEE Microwave Magazine, Vol. 11, No. 6, pp. 124 - 126, October, 2010.
| BibTex
- Silva, N.V.S.; Oliveira, A.O.; Carvalho, N.B.C.; "Towards a New Baseband Processing Architecture for Next Generation Software-Defined Radio", Electrónica e Telecomunicações, Vol. 5, No. 2, pp. 167 - 171, June, 2010.
| BibTex
- Carvalho, N.B.C.; "Power amplifier linearisation behaviour in the presence of dynamic effects", IET Microwaves Antennas & Propagation , Vol. 4, No. 1, pp. 113 - 120, January, 2010. Abstract | Full text (PDF 514KB) | BibTex
- R. S. Santos; Carvalho, N.B.C.; "Characterization of SNDR Degradation in Nonlinear Wireless Transmitters", Intrnl. Journal of RF and Microwave Computer-Aided Engineering, Vol. 19, No. 4, pp. 470 - 480, July, 2009. Abstract | Full text (PDF 520KB) | BibTex
- Gomes, H.G.; Carvalho, N.B.C.; "RFID for Location Proposes Based on the Intermodulation Distortion", Sensors & Transducers Magazine, Vol. 106, No. 7, pp. 85 - 96, July, 2009.
| BibTex
- Carvalho, N.B.C.; "Multisine signals for wireless system test and design", IEEE Microwave Magazine, Vol. 9, No. 3, pp. 122 - 138, June, 2008. Abstract
| BibTex
- Carvalho, N.B.C.; "Real World Applications - Local Positioning System Based on Artificial Neural Networks", Lectures Notes in Computer Science, Vol. 2007, No. 12, pp. 609 - 708, September, 2007.
| BibTex
- Carvalho, N.B.C.; "The MTT-II Web Page: A Multitude of Information Resources on Microwave Measurements ", IEEE Microwave Wireless and Components Letters, Vol. 8, No. 4, pp. 106 - 114, August, 2007.
| BibTex
- J. Martins; Carvalho, N.B.C.; Pedro, J. C.; "Intermodulation Distortion of Third-Order Nonlinear Systems With Memory Under Multisine Excitations", IEEE Trans. on Microwave Theory and Tech., Vol. 55, No. 6, pp. 1264 - 1271, June, 2007.
| BibTex
- J. Martins; Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "A Metric for the Quantification of Memory Effects in Wireless Power Amplifiers", IEEE Trans. on Microwave Theory and Tech., Vol. 54, No. 12, pp. 4432 - 4439, December, 2006.
| BibTex
- Carvalho, N.B.C.; "Mini-Special Issue on Measurements for Large-Signal Characterization and Modeling of Nonlinear Analog Devices, Circuits, and Systems", IEEE Trans. on Microwave Theory and Tech., Vol. 54, No. 8, pp. 3161 - 3161, August, 2006.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "Nonlinear RF circuits and systems simulation when driven by several modulated signals", IEEE Trans. on Microwave Theory and Tech., Vol. 54, No. 2, pp. 572 - 579, February, 2006.
| BibTex
- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "Modeling Nonlinear Memory Effects on the AM/AM, AM/PM and Two-Tone IMD in Microwave PA Circuits", Intrnl. Journal of RF and Microwave Computer-Aided Engineering, Vol. -, No. -, pp. - - -, January, 2006.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "Load-impedance selection for maximized large-signal IMD sweet-spot effects ", Intrnl. Journal of RF and Microwave Computer-Aided Engineering, Vol. 5, No. 15, pp. 434 - 440, September, 2005.
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- Carvalho, N.B.C.; Pedro, J. C.; "Nonlinear simulation of mixers for assessing system-level performance ", Intrnl. Journal of RF and Microwave Computer-Aided Engineering, Vol. 15, No. 4, pp. 350 - 361, July, 2005.
| BibTex
- Martins, J. P. M.; Carvalho, N.B.C.; "Multi-tone Phase and Amplitude Measurement for Nonlinear Device Characterization", IEEE Trans. on Microwave Theory and Tech., Vol. 53, No. 6, pp. 1982 - 1989, June, 2005.
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- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "A unified theory for nonlinear distortion characteristics in different amplifier technologies", Microwave Journal, Vol. , No. , pp. - , December, 2004.
| BibTex
- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "Nonlinear device model of microwave power GaN HEMTs for high-power amplifier design", IEEE Trans. on Microwave Theory and Tech., Vol. 52, No. 11, pp. 2585 - 2592, November, 2004.
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- Pedro, J. C.; Carvalho, N.B.C.; "An Integrated Overview of CAD/CAE Tools and Their Use on Wireless-Communication Circuit Design", Intrnl. Journal of RF and Microwave Computer-Aided Engineering, Vol. 14, No. 6, pp. 507 - 524, October, 2004.
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- Pedro, J. C.; Carvalho, N.B.C.; C. Fager; J. A. Garcia; "Linearity Versus Efficiency in Mobile Handset Power Amplifiers: A Battle Without a Loser", Microwave Engineering Europe, Vol. 0, No. 0, pp. 19 - 26, August, 2004.
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- Lavrador, P.M.L.; Carvalho, N.B.C.; Pedro, J. C.; "Evaluation of signal-to-noise and distortion ratio degradation in nonlinear systems", IEEE Trans. on Microwave Theory and Tech., Vol. 52, No. 3, pp. 813 - 822, March, 2004.
| BibTex
- C. Fager; Pedro, J. C.; Carvalho, N.B.C.; H. Zirath; Fortes, F.; Rosário, M. J.; "A Comprehensive Analysis of IMD Behavior in RF CMOS Power Amplifiers", IEEE Journal of Solid-State Circuits, Vol. 39, No. 1, pp. 24 - 34, January, 2004.
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- Pedro, J. C.; Carvalho, N.B.C.; "Designing Multisine Excitations for Nonlinear Model Testing", IEEE Trans. on Microwave Theory and Tech., Vol. 53, No. 1, pp. 45 - 54, January, 2004.
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- Carvalho, N.B.C.; "Medidor de Campo electromagnético selectivo na frequência para as bandas GSM900/GSM1800", Revista do Departamento de Electrónica e de Telecomunicações, Universidade de Aveiro, Vol. 1, No. 1, pp. 1 - 1, January, 2004.
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- Carvalho, N.B.C.; "Métodos de Entrada de Texto Especialmente Projectados para Comunicações Móveis", Revista do Departamento de Electrónica e de Telecomunicações, Universidade de Aveiro, Vol. 2, No. 1, pp. 1 - 1, January, 2003.
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- Carvalho, N.B.C.; Pedro, J. C.; "A Comprehensive Explanation of Distortion Side Band Asymmetries", IEEE Trans. on Microwave Theory and Tech., Vol. 50, No. 9, pp. 2090 - 2101, September, 2002.
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- Pedro, J. C.; Carvalho, N.B.C.; "Characterizing Nonlinear RF Circuits for Their In-Band Signal Distortion", IEEE Trans. on Instrumentation and Measurement, Vol. 51, No. 9, pp. 420 - 426, June, 2002.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "Compact Formulas to Relate ACPR and NPR to Two-Tone IMR and IP3", Microwave Journal, Vol. 42, No. 12, pp. 0 - 0, December, 1999.
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- Carvalho, N.B.C.; Pedro, J. C.; "Large and Small Signal IMD Behavior of Microwave Power Amplifiers", IEEE Trans. on Microwave Theory and Tech., Vol. 47, No. 12, pp. 2364 - 2374, December, 1999.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "Multi-tone Frequency Domain Simulation of Nonlinear Circuits in Large and Small Signal Regimes", IEEE Trans. on Microwave Theory and Tech., Vol. 46, No. 12, pp. 2016 - 2024, December, 1998.
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- Carvalho, N.B.C.; Pedro, J. C.; "Alternativa ao SPICE para Simulação do Estado Estacionário de Circuitos Não Lineares", Revista do Departamento de Electrónica e de Telecomunicações, Universidade de Aveiro, Vol. 1, No. 7, pp. 635 - 644, January, 1997.
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- Carvalho, N.B.C.; "Controlador de Memória Dinâmica para o mP68030", Revista do Departamento de Electrónica e de Telecomunicações, Universidade de Aveiro, Vol. 1, No. 5, pp. 0 - 0, January, 1996.
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- Carvalho, N.B.C.; Pedro, J. C.; "Estudo das Características de Distorção Não-Linear de Intermodulação de Desmoduladores de FM por PLL", Revista do Departamento de Electrónica e de Telecomunicações, Universidade de Aveiro, Vol. 1, No. 5, pp. 353 - 361, January, 1996.
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- Carvalho, N.B.C.; Pedro, J. C.; "Projecto de Redes de Adaptação para Amplificadores de Banda Larga", Revista do Departamento de Electrónica e de Telecomunicações, Universidade de Aveiro, Vol. 1, No. 4, pp. 343 - 348, September, 1995.
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Papers in Conference Proceedings [103]
- J. Tavares; Barroca, N.; Henrique M. Saraiva M. Saraiva; Borges, Luis M.; Velez, F. J.; C. Loss; R. Salvado; Pinho, P.; Gonçalves, R.; Carvalho, N.B.C.; "Spectrum Opportunities for Electromagnetic Energy Harvesting from 350 MHz to 3 GHz", Proc International Symp. on Medical Information and Communication Technology - ISMICT, Tokyo, Japan, Vol. -, pp. - - -, March, 2013.
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- Cruz, P.M.; Carvalho, N.B.C.; M.E. Valkama; "Evaluation of Second-Order Bandpass Sampling Receivers for Software Defined Radio", Proc European Microwave Integrated Circuits - EuMIC, Amsterdam, Netherlands, Vol. 1, pp. ?? - ??, October, 2012.
| BibTex
- Silva, N.V.S.; M. Ventura; Oliveira, A.O.; Carvalho, N.B.C.; "Evaluation of an FPGA-based Reconfigurable SoC for All-Digital Flexible RF Transmitters", Proc Euromicro Conf. on Digital System Design - Euromicro, Cesme, Turkey, Vol. , pp. 890 - 895, September, 2012.
| BibTex
- Silva, N.V.S.; Oliveira, A.O.; Carvalho, N.B.C.; "Evaluation of Pulse Modulators for All-Digital Agile Transmitters", Proc IEEE International Microwave Theory and Tech. Symp., Montreal, Canada, Vol. , pp. 1 - 3, June, 2012.
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- Silva, N.V.S.; Oliveira, A.O.; Carvalho, N.B.C.; "Prototyping a Fast Delta-Sigma Modulator Architecture Enabling FPGA-embedded Software-Defined Radio Transmitters", Proc Jornadas sobre Sistemas Reconfiguráveis - REC, Lisboa, Portugal, Vol. N/A, pp. 71 - 74, February, 2012.
| BibTex
- Silva, N.V.S.; Oliveira, A.O.; U.G. Gustavsson; Carvalho, N.B.C.; "A Dynamically Reconfigurable Architecture Enabling All-Digital Transmission for Cognitive Radios", Proc IEEE Radio and Wireless Symp. - RWS, Santa Clara, United States, Vol. , pp. 1 - 4, January, 2012.
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- Liu, Z.; Violas, M.; Carvalho, N.B.C.; "Transmission of Four Channels SCM Over Fiber and Nonlinear Compensation for RSOA External Modulators", Proc IEEE GLOBECOM Workshops: Distributed Antenna Systems for Broadband Mobile Communication, Houston, United States, Vol. -, pp. 1 - 5, December, 2011.
Abstract
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- Cruz, P.M.; Carvalho, N.B.C.; "Instrumentação Virtualizada para Tecnologias Rádio Emergentes", Proc URSI Seminar of the Portuguese Committee, Lisboa, Portugal, Vol. 1, pp. ?? - ??, November, 2011.
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- Cruz, P.M.; Carvalho, N.B.C.; M.E. Valkama; "On the Implementation of a Mixed Frequency-Time Simulator for Band-Pass Sampling Receivers", Proc CETC2011- Conf. on Electronics, Telecommunications and Computers , Lisboa, Portugal, Vol. 1, pp. ?? - ??, November, 2011.
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- ; Cruz, P.M.; Carvalho, N.B.C.; "Two-Tone Measurement Technique to apply on Mixed-Domain Instrumentation", Proc URSI Seminar of the Portuguese Committee, Lisboa, Portugal, Vol. 1, pp. ?? - ??, November, 2011.
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- Brás, L.; Carvalho, N.B.C.; Pinho, P.; "Improved Sectorised Antenna for Indoor Localization Systems", Proc European Microwave Week/European Microwave Conf., Manchester, United Kingdom, Vol. , pp. 1 - 4, October, 2011. Abstract | Full text (PDF 514KB) | BibTex
- Cruz, P.M.; Carvalho, N.B.C.; "Multi-Carrier Wideband Nonlinear Behavioral Modeling for Cognitive Radio Receivers", Proc European Microwave Week/European Microwave Conf., Manchester, United Kingdom, Vol. 1, pp. 414 - 417, October, 2011.
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- Abrudan, T.; L. M. Paula; Barros, J.; J. P. C. Silva Cunha; Carvalho, N.B.C.; "Indoor location estimation and tracking in wireless sensor networks using a dual frequency approach", Proc IEEE International Conf. on Indoor Positioning and Indoor Navigation - IPIN 2011, Guimarães, Portugal, Vol. -, pp. - - -, September, 2011.
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- Brás, L.; Carvalho, N.B.C.; Pinho, P.; "Location System applied in Management of Emergency Scenarios", Proc ETH Zurich 10 International Conf. on Indoor Positioning and Indoor Navigation - IPIN, Guimaraes, Portugal, Vol. , pp. 1 - 4, September, 2011.
Abstract
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- Jang, W.; Carvalho, N.B.C.; "Crest factor reduction through scaling and recovering by frame in OFDM communication systems", Proc URSI General Assembly, Istanbul, Turkey, Vol. 2011, pp. 1 - 4, August, 2011.
| BibTex
- Brás, L.; Carvalho, N.B.C.; Pinho, P.; "Patch-Excited Horn Antenna Array for Localization Systems", Proc IEEE AP-S/URSI International Symp., Spokane, United States, Vol. , pp. 1 - 4, July, 2011. Abstract | Full text (PDF 1015KB) | BibTex
- Brás, L.; Carvalho, N.B.C.; Pinho, P.; "Indoor/Outdoor Management System Compliant with Google Maps and Android® OS", Proc EUROCON and CONFTELE 2011, Lisboa, Portugal, Vol. , pp. 1 - 4, April, 2011.
Abstract
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- Silva, N.V.S.; Oliveira, A.O.; Carvalho, N.B.C.; "Validation of a Flexible FPGA-based LDPC Decoder Through Hardware-Software Co-simulation", Proc Jornadas sobre Sistemas Reconfiguráveis - REC, Porto, Portugal, Vol. N/A, pp. 39 - 42, February, 2011.
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- Cruz, P.M.; Carvalho, N.B.C.; "Enhanced Architecture to Increase the Dynamic Range of SDR Receivers", Proc IEEE Radio and Wireless Symp. - RWS, Phoenix, United States, Vol. 1, pp. 331 - 334, January, 2011.
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- Brás, L.; Carvalho, N.B.C.; Pinho, P.; "Low Power Localization Engine Based on Wireless Sensor Networks", Proc IBERSENSOR 2010 - 7th Ibero-American Congress on Sensors, Lisboa, Portugal, Vol. , pp. 1 - 5, October, 2010.
Abstract
| BibTex
- Brás, L.; Carvalho, N.B.C.; Pinho, P.; "Low Power Location Protocol based on ZigBee Wireless Sensor Networks", Proc ETH Zurich 10 International Conf. on Indoor Positioning and Indoor Navigation - IPIN, Zurich, Switzerland, Vol. , pp. 1 - 7, September, 2010. Abstract | Full text (PDF 1015KB) | BibTex
- HM Mostardinha; Cabral, P. M.; Carvalho, N.B.C.; "GaN RF Testbed for Space Applications", Proc ESA Microwave Technology and Techniques Workshop: Enabling Future Space Systems, Noordwijk, Netherlands, Vol. .., pp. .. - .., May, 2010.
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- Cruz, P.M.; Carvalho, N.B.C.; "Modeling Band-Pass Sampling Receivers Nonlinear Behavior in Different Nyquist Zones", Proc IEEE International Microwave Theory and Tech. Symp., Anaheim, United States, Vol. 1, pp. 1684 - 1687, May, 2010.
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- Gomes, H.G.; A. R. T. Testera; Carvalho, N.B.C.; M. B. Barciela; K. R. Remley; "The Impact of Long-term Memory Effects on Diode Power Probes", Proc IEEE International Symp. on Microwave Theory and Tech., Anaheim, United States, Vol. 1, pp. 596 - 599, May, 2010.
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- HM Mostardinha; Cabral, P. M.; Carvalho, N.B.C.; "GaN RF Oscillator used in Space Applications", Proc Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC, Goteborg, Sweden, Vol. .., pp. 50 - 53, April, 2010.
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- Cruz, P.M.; Carvalho, N.B.C.; "Architecture for Dynamic Range Extension of Analog-to-Digital Conversion", Proc IEEE MTT-S International Microwave Worshop Series (IMWS) on Art of Miniaturizing RF and Microwave Passive Components, Aveiro, Portugal, Vol. 1, pp. 1 - 4, February, 2010.
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- Silva, N.V.S.; Oliveira, A.O.; Carvalho, N.B.C.; "Reconfigurable Architectures for Next Generation Software-Defined Radio", Proc Jornadas sobre Sistemas Reconfiguráveis - REC, Aveiro, Portugal, Vol. N/A, pp. 41 - 44, February, 2010.
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- Cruz, P.M.; Carvalho, N.B.C.; "PWM Bandwidth and Wireless System Peak-to-Minimum Power Ratio", Proc European Microwave Week/European Microwave Conf., Rome, Italy, Vol. 1, pp. 1736 - 1739, September, 2009.
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- Cruz, P.M.; Carvalho, N.B.C.; "Characterization of a SDR Front-End Receiver with Multisine Excitations", Proc Conf. on Telecommunications - ConfTele, Santa Maria da Feira, Portugal, Vol. 1, pp. -- - --, May, 2009.
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- G. Martins; Carvalho, N.B.C.; Cabral, P. M.; "Co-location of different technologies in the same site", Proc Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC, Malaga, Spain, Vol. .., pp. 177 - 180, November, 2008.
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- Gomes, H.G.; Carvalho, N.B.C.; "Interference cancellation: New configuration technique for cancellation of strong interferences from adjacent frequency bands", Proc International Workshop on Integrated Nonlinear Microwave and Millimeter-Wave Circuits - INMMIC, Malaga, Spain, Vol. 1, pp. 65 - 68, November, 2008.
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- Cruz, P.M.; Carvalho, N.B.C.; "Multi-Mode Receiver for Software Defined Radio", Proc URSI Seminar of the Portuguese Committee, Lisboa, Portugal, Vol. 1, pp. -- - --, November, 2008.
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- Cruz, P.M.; Carvalho, N.B.C.; "PAPR Evaluation in Multi-Mode SDR Transceivers", Proc European Microwave Week/European Microwave Conf., Amesterdam, Netherlands, Vol. 1, pp. 1354 - 1357, October, 2008.
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- Cruz, P.M.; Carvalho, N.B.C.; "Evaluation of Nonlinear Distortion in ADCs Using Multisines", Proc IEEE International Microwave Theory and Tech. Symp., Atlanta, United States, Vol. 1, pp. 1433 - 1436, June, 2008.
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- Cruz, P.M.; Carvalho, N.B.C.; K. R. Remley; K. Gard; "Mixed Analog-Digital Instrumentation for Software Defined Radio Characterization", Proc IEEE International Microwave Theory and Tech. Symp., Atlanta, United States, Vol. 1, pp. 253 - 256, June, 2008.
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- Gomes, H.G.; Carvalho, N.B.C.; "The use of intermodulation distortion for the design of passive RFID", Proc European Microwave Week/European Microwave Conf., Munique, Germany, Vol. 1, pp. 1656 - 1659, October, 2007.
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- Gomes, H.G.; Carvalho, N.B.C.; "RFID for Location Proposes: An approach using the Intermodulation Distortion", Proc URSI - International Union of Radio Science XXII Simposium Nacional de la Unión Científica Internacional de Radio, Malaga, Spain, Vol. 1, pp. -- - --, September, 2007.
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- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "GaN Model Robustness from an IMD point of view", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. .., pp. 177 - 180, May, 2007.
| BibTex
- Gomes, H.G.; Carvalho, N.B.C.; "RFID for Location Proposes", Proc Conf. on Telecommunications - ConfTele, Peniche, Portugal, Vol. 1, pp. -- - --, May, 2007.
| BibTex
- Gomes, H.G.; Carvalho, N.B.C.; "RFID for Location Proposes Based on the Intermodulation Distortion", Proc Mediterranean Microwave Symp. - MMS, Budapest, Hungary, Vol. 1, pp. -- - --, May, 2007.
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- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "Envelope Time Domain Characterization of Microwave Power Amplifiers", Proc Mediterranean Microwave Symp. - MMS, Genova, Italy, Vol. .., pp. 383 - 386, September, 2006.
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- Martins, J. P. M.; Carvalho, N.B.C.; "Multi-sine Response of Third Order Nonlinear Systems with Memory Based on Two-tone Measurements", Proc European Microwave Week/European Microwave Conf., Manchester, United Kingdom, Vol. 1, pp. 263 - 266, September, 2006.
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- Martins, J. P. M.; Carvalho, N.B.C.; Pedro, J. C.; "A Figure of Merit for the Evaluation of Long Term Memory Effects in RF Power Amplifiers", Proc IEEE International Symp. on Microwave Theory and Tech., San Francisco, United States, Vol. 1, pp. 1109 - 1112, June, 2006.
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- Pedro, J. C.; Lavrador, P.M.L.; Carvalho, N.B.C.; "A Formal Procedure for Microwave Power Amplifier Behavioral Modeling", Proc IEEE International Symp. on Microwave Theory and Tech., San Francisco, United States, Vol. 2, pp. 848 - 851, June, 2006.
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- Martins, J. P. M.; Carvalho, N.B.C.; Pedro, J. C.; "Nonlinear Microwave System Characterization Based on Higher Order Statistics", Proc ARFTG Conf., San Francisco, United States, Vol. 1, pp. ? - ?, June, 2006.
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- Carvalho, N.B.C.; Cabral, P. M.; Pedro, J. C.; "Modeling Strategies and Characterization Techniques for Microwave GaN Power Amplifiers", Proc ESA Microwave Technology and Techniques Workshop: Enabling Future Space Systems, Noordwijk, Netherlands, Vol. 0, pp. 0 - 0, May, 2006.
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- Lavrador, P.M.L.; Pedro, J. C.; Carvalho, N.B.C.; "A new method for the orthogonal extraction of the Volterra series coefficients", Proc Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC, Aveiro, Portugal, Vol. 1, pp. 138 - 141, January, 2006.
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- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "Bias Networks Impact on the Dynamic AM/AM Contours in Microwave Power Amplifiers", Proc Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC, Aveiro, Portugal, Vol. .., pp. .. - .., January, 2006.
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- Martins, J. P. M.; Carvalho, N.B.C.; Pedro, J. C.; "Practical Higher Order Statistics Signal Characterization", Proc Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC, Aveiro, Portugal, Vol. 1, pp. ? - ?, January, 2006.
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- Lavrador, P.M.L.; Pedro, J. C.; Carvalho, N.B.C.; "A new Volterra series based orthogonal behavioral model for power amplifiers", Proc Asia Pacific Microwave Conf. - APMC, Suzhou, China, Vol. 1, pp. - - -, December, 2005.
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- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "Dynamic AM-AM and AM-PM Behavior in Microwave PA Circuits", Proc Asia Pacific Microwave Conf. - APMC, Suzhou, China, Vol. 4, pp. 2386 - 2389, December, 2005.
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- Martins, J. P. M.; Carvalho, N.B.C.; Pedro, J. C.; "Practical Multitone Amplitude and Phase Characterization", Proc Asia Pacific Microwave Conf. - APMC, suzhou, China, Vol. 5, pp. 3055 - 3058, December, 2005.
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- Lavrador, P.M.L.; Pedro, J. C.; Carvalho, N.B.C.; "A New Nonlinear Behavioral Model Extracted Orthogonally", Proc Conf. on Design of Circuits and Integrated Systems, Lisbon, Portugal, Vol. -, pp. - - -, November, 2005.
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- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "Extraction Procedure and Validation of a Large-Signal Model for GaN HEMTs", Proc Conf. on Design of Circuits and Integrated Systems, Lisboa, Portugal, Vol. -, pp. - - -, November, 2005.
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- Carvalho, N.B.C.; Pedro, J. C.; "Laboratory generation of multi-sines with pre-described statistics", Proc European Microwave Conf. - EMC, Paris, France, Vol. 2, pp. - - -, October, 2005.
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- Pedro, J. C.; Carvalho, N.B.C.; "Inferring Nonlinear Distortion Performance of Power Amplifiers Subject to Telecommunications Signals from Two-Tone Measurements", Proc IEEE International Microwave Theory and Tech. Symp., Long Beach, United States, Vol. CDROM, pp. 817 - 820, June, 2005.
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- Carvalho, N.B.C.; Pedro, J. C.; "Simulation of Nonlinear RF Circuits Driven By Multi-carrier Modulated Signals", Proc IEEE International Symp. on Microwave Theory and Tech., Long Beach, United States, Vol. , pp. 1 - 2, June, 2005.
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- Lavrador, P.M.L.; Pedro, J. C.; Carvalho, N.B.C.; "A New Nonlinear Quasi-Orthogonal Model Extracted in the Frequency Domain", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. -, pp. - - -, April, 2005.
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- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "Novel Explanation for Low Frequency High Linearity Characteristics on BJTs", Proc Conf. on Telecommunications - ConfTele, Tomar, Portugal, Vol. -, pp. - - -, April, 2005.
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- Martins, J. P. M.; Carvalho, N.B.C.; Pedro, J. C.; "Automatic Phase and Amplitude Characterization", Proc Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC, Rome, Italy, Vol. 1, pp. ? - ?, December, 2004.
| BibTex
- Pedro, J. C.; Carvalho, N.B.C.; J. A. Garcia; "Designing Highly-Linear Microwave Power Amplifiers Based on Large-Signal IMD Sweet-Spots", Proc Asia Pacific Microwave Conf. - APMC, Delhi, India, Vol. CDROM, pp. - , December, 2004.
| BibTex
- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "Higly Linear GaN class AB power amplifier design", Proc Asia Pacific Microwave Conf. - APMC, New Delhi, India, Vol. , pp. - , December, 2004.
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- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "Modeling AM/AM and AM/PM conversions in microwave power amplifier circuits", Proc Integrated Non-linear Microwave and Millimetre-wave Circuits Conf. - INMMIC, Rome, Italy, Vol. , pp. 139 - 142, November, 2004.
| BibTex
- Martins, J. P. M.; Carvalho, N.B.C.; "A New Approach to Mixer’s Linearization", Proc European Microwave Conf. - EMC, Amesterdam, Netherlands, Vol. 2, pp. 1061 - 1064, October, 2004.
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- Pedro, J. C.; Carvalho, N.B.C.; "Behavioural Modelling and Simulation of Microwave/Wireless Circuits and Sub-Systems", Proc International Workshop on Electronics and System Analysis - IWESA, Bilbao, Spain, Vol. 1, pp. 11 - 14, October, 2004.
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- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "Nonlinear model with AM/AM, AM/PM and IMD prediction capabilities for GaN HEMTs", Proc International Workshop on Electronics and System Analysis - IWESA, Bilbao, Spain, Vol. , pp. - , October, 2004.
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- Martins, J. P. M.; Carvalho, N.B.C.; "Spectral Filtering Setup for Uncorrelated IMD Multi-tone Phase and Amplitude Measurement", Proc European Microwave Conf. - EMC, Amsterdam, Netherlands, Vol. 1, pp. 201 - 204, October, 2004.
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- Pedro, J. C.; Carvalho, N.B.C.; "Designing Band-Pass Multisine Excitations for Microwave Behavioral Model Identification", Proc IEEE International Microwave Theory and Tech. Symp., Fort Worth, United States, Vol. 0, pp. 791 - 794, June, 2004.
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- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "New Nonlinear Device Model for Microwave Power GaN HEMTs", Proc IEEE International Symp. on Microwave Theory and Tech., Fort Worth, United States, Vol. 1, pp. 51 - 54, June, 2004.
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- Carvalho, N.B.C.; Pedro, J. C.; "Nonlinear Simulation of Mixers for Assessing System-Level Performance", Proc IEEE International Microwave Theory and Tech. Symp., Forth Worth, United States, Vol. 1, pp. 1 - 1, June, 2004.
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- Duarte, A. M. O. D.; P. B. Pereira ; F. Oliveira; Carvalho, N.B.C.; S. Petiz; "Enquadramento e impacto dos sistemas de informação no Programa Aveiro Norte", Proc Encontro Lusófono de Ciências da Comunicação, Covilhã, Portugal, Vol. , pp. - , April, 2004.
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- Pedro, J. C.; Carvalho, N.B.C.; "Statistics of Microwave Signals and Their Impact on the Response of Nonlinear Dynamic Systems", Proc ARFTG Conf., Boulder, United States, Vol. 62nd ARFTG Conference Dig., pp. 143 - 153, December, 2003.
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- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "An Integrated View of Nonlinear Distortion Phenomena in Various Power Amplifier Technologies", Proc European Microwave Conf. - EMC, Munique, Germany, Vol. -, pp. 69 - 73, October, 2003.
| BibTex
- Cabral, P. M.; Pedro, J. C.; Carvalho, N.B.C.; "A Repeater Prototype for the UMTS Network Radio Sub-System", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. -, pp. 277 - 280, June, 2003.
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- Pedro, J. C.; Carvalho, N.B.C.; "Mixed Time and Frequency Domain Behavioral Modeling and Simulation", Proc Workshop on Fundamentals of Nonlinear Behavioral Modeling, Philadelphia, United States, Vol. 1, pp. 1 - 1, June, 2003.
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- Pedro, J. C.; Carvalho, N.B.C.; Lavrador, P.M.L.; "Modeling Nonlinear Behavior of Band-Pass Memoryless and Dynamic Systems", Proc IEEE International Symp. on Microwave Theory and Tech., Philadelphia, United States, Vol. CD-ROM, pp. ---- - ----, June, 2003.
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- Lavrador, P.M.L.; Carvalho, N.B.C.; Pedro, J. C.; "Noise and distortion figure - an extension of noise figure definition for nonlinear devices", Proc IEEE International Microwave Theory and Tech. Symp., Philadelphia, United States, Vol. 3, pp. 2137 - 2140, June, 2003.
| BibTex
- Martins, J. P. M.; Carvalho, N.B.C.; Pedro, J. C.; "Post-Distortion Linearising Technique Applied to Mixers", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 111 - 114, June, 2003.
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- Lavrador, P.M.L.; Pedro, J. C.; Carvalho, N.B.C.; "Underlying Linear System Identification of Memoryless and Dynamic Nonlinear Systems", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. -, pp. - - -, June, 2003.
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- Carvalho, N.B.C.; "Optimum Load Selection for Maximized Large Signal IMD Sweet Spots", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 527 - 530, April, 2003.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "Intermodulation Distortion in LDMOS Transistor Amplifiers", Proc IEEE International Symp. on Microwave Theory and Tech., Seattle, United States, Vol. 1, pp. 1 - 1, June, 2002.
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- Pedro, J. C.; Carvalho, N.B.C.; "Simulation of RF Circuits Driven by Modulated Signals Without Bandwidth Constraints", Proc IEEE International Symp. on Microwave Theory and Tech., Seattle, United States, Vol. 3, pp. 2173 - 2176, June, 2002.
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- Carvalho, N.B.C.; Pedro, J. C.; "A Novel Measurement Standard for Nonlinear In-Band Distortion Characterization", Proc ARFTG Conf., Phoenix, United States, Vol. 1, pp. 1 - 1, May, 2001.
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- Carvalho, N.B.C.; Pedro, J. C.; "Novel Artificial Frequency Mapping Techniques for Multi-tone Simulation of Mixers", Proc IEEE International Symp. on Microwave Theory and Tech., Phoenix, United States, Vol. 1, pp. 1 - 1, May, 2001.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "A Si LDMOS-Based UHF Power Amplifier", Proc Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. 1, pp. 1 - 1, April, 2001.
| BibTex
- Carvalho, N.B.C.; "Intermodulation Interference in the GSM/UMTS Bands", Proc Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. 1, pp. 1 - 1, April, 2001.
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- Carvalho, N.B.C.; Pedro, J. C.; "Multitone Simulation of Mixers", Proc Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. 1, pp. 1 - 1, April, 2001.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "Two-Tone IMD Assymetry in Microwave Power Amplifiers", Proc IEEE International Symp. on Microwave Theory and Tech., Boston, United States, Vol. 1, pp. 1 - 1, June, 2000.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "State-of-the-Art Simulation of Microwave Amplifier's Nonlinear Distortion", Proc ARFTG Conf., Malaga, Spain, Vol. 1, pp. 1 - 1, December, 1999.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "Large Signal IMD Sweet Spots in Microwave Power Amplifiers", Proc IEEE International Microwave Theory and Tech. Symp., Anaheim, United States, Vol. 1, pp. 517 - 520, June, 1999.
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- Carvalho, N.B.C.; Pedro, J. C.; "Multi-Tone Intermodulation Distortion Performance of 3rd Order Microwave Circuits", Proc IEEE International Symp. on Microwave Theory and Tech., Anaheim, United States, Vol. 1, pp. 763 - 766, June, 1999.
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- Carvalho, N.B.C.; Pedro, J. C.; "A New Active Device Model Approximation Suitable for a Nonlinear Frequency Domain Simulator", Proc Conf. on Telecommunications - ConfTele, Sesimbra, Portugal, Vol. 1, pp. 187 - 190, April, 1999.
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- Carvalho, N.B.C.; Pedro, J. C.; "Gain Compression or Expansion, Distortion and Other Large Signal Power Amplifier Related Phenomena", Proc Conf. on Telecommunications - ConfTele, Sesimbra, Portugal, Vol. 1, pp. 515 - 518, April, 1999.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "Non-Linear Circuit Simulation of Complex Spectra in the Frequency Domain", Proc IEEE International Conf. on Electronics, Circuits and Systems, Lisboa, Portugal, Vol. 1, pp. 129 - 132, September, 1998.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "A Fast Spectral Balance Method for Non-linear Circuit Simulation in the Frequency Domain", Proc USNC/URSI National Radio Science Meeting, Bilbao, Spain, Vol. 1, pp. 587 - 590, June, 1998.
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- Carvalho, N.B.C.; Pedro, J. C.; "Simulation of Multi-Tone IMD Distortion and Spectral Regrowth Using Spectral Balance", Proc IEEE International Symp. on Microwave Theory and Tech., Baltimore, United States, Vol. 1, pp. 729 - 732, June, 1998.
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- Carvalho, N.B.C.; Pedro, J. C.; "Contribución de la No Linealidad Ids(Vgs,Vds) a la Distorsión de Intermodulación en Transistores MESFETs y HEMTs", Proc USNC/URSI National Radio Science Meeting, Bilbao, Spain, Vol. 1, pp. 15 - 18, September, 1997.
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- Carvalho, N.B.C.; Pedro, J. C.; "Simulating Strong Nonlinear Microwave Circuits Driven By a Large Number of Input Tones", Proc European Microwave Conf. - EMC, Jerusalem, Israel, Vol. 27, pp. 820 - 825, September, 1997.
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- Carvalho, N.B.C.; Pedro, J. C.; "Simulação da Resposta Estacionária de Circuitos Não-Lineares de Rádio-Frequência - Estado da Arte 1996 -", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 127 - 130, April, 1997.
| BibTex
- Carvalho, N.B.C.; Pedro, J. C.; "Simulação de Circuitos Não-Lineares para Aplicação em Comunicações Móveis", Proc Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 123 - 126, April, 1997.
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- Carvalho, N.B.C.; Pedro, J. C.; "Prediction of PLL Frequency Discriminator Non-Linear Distortion Using the Volterra Series Approach", Proc IEEE International Symp. on Circuits and Systems - ISCAS, Atlanta, United States, Vol. 1, pp. 229 - 232, May, 1996.
| BibTex
Theses
- N.B.C. Carvalho; "Optimização da Distorção Não-linear de Intermodulação em Amplificadores de Sinais Multi-Portadora", Universidade de Aveiro, January, 1970 .
Other Scientific Achievements
Patents
- Carvalho, N.B.C.; MRui Santos;
"MÉTODO PARA LOCALIZAR PESSOAS OU OBJECTOS USANDO UMA REDE SEM FIOS", 103 590 , October, 2008.
- Carvalho, N.B.C.;
"SISTEMA INTEGRADO DE MONITORIZAÇÃO E COMUNICAÇÃO MULTI-CANAL PARA GESTÃO DE EQUIPAS DE PROTECÇÃO CIVIL", 103616, December, 2008.
- Silva, N.V.S.; Oliveira, A.O.; Carvalho, N.B.C.;
"MTT Software Defined Radio and Digital Signal Processing", Second place at the IMS2012 Software Defined Radio and Digital Signal Processing Student Design Competition, 01-06-2012.
- Cruz, P.M.; Carvalho, N.B.C.; M.E. Valkama;
"Best Student Presentation Award COST Action IC0803", Work: “Evaluation of Second-Order Bandpass Sampling Receivers for Software Defined Radio”
Location: 8th MC Meeting and Workshop of COST IC0803, Belfast, United Kingdom, 01-05-2012.
- Cruz, P.M.; Carvalho, N.B.C.;
"3rd place GAAS Association Student Fellowship for EuMIC 2009", Third place in Gallium Arsenide Application Symposium Association Student Fellowship 2009 given at European Microwave Integrated Circuits Conference (EuMIC) in Rome, Italy, 01-09-2009.
- Carvalho, N.B.C.; Pedro, J. C.;
"MTT Student Paper Contest (3rd Place)", Third place at the Student Paper Contest in the IEEE Microwave Theory and Techniques Symposium, Baltimore, USA, 20-06-1998.
- Carvalho, N.B.C.;
"Prémio Engº Ferreira Pinto Basto", Best student in Electronics and Telecommunications Engineer in the year 1994-1995 at Aveiro University, this prize was granted by ALCATEL Portugal., 07-10-1996.
- Carvalho, N.B.C.;
"Best student in Electronics and Telecommunications Engineer at UA", Best student in Engineer in the year 1995 at Aveiro University, this prize was granted by Portuguese Engineers Association, 15-06-1996.
- J. Tavares; Barroca, N.; Gonçalves, R.; Henrique M. Saraiva M. Saraiva; Borges, Luis M.; Velez, F. J.; C. Loss; R. Salvado; Pinho, P.; Carvalho, N.B.C.; "Seminars", Spectrum Opportunities for Electromagnetic Energy Harvesting from 350 MHz to 3 GHz", 16º Seminário RTCM - Rede Temática de Comunicações Móveis, 01-02-2013.
- Carvalho, N.B.C.; "Seminars", Como Funcionam os Telemóveis", Semana Aberta na UA, 01-11-2002.
- Carvalho, N.B.C.; "Seminars", The Effects of Nonlinear Distortion in Radio Systems", As Telecomunicações para a Presente Década, 01-04-2001.
- Carvalho, N.B.C.; Pedro, J. C.; "Invited Talks", Multi-tone Figures of Merit, Version 1, Software Package", , 01-01-2000.
Other Contributions
Conference Committees
- IEEE International Symp. on Microwave Theory and Tech., Technical Programme Committee, Nuno Miguel Gonçalves Borges de Carvalho , 2011.
- European Microwave Week/European Microwave Conf., Sessions Chairman , Nuno Miguel Gonçalves Borges de Carvalho , 2011.
- INMMIC, Organizing Committee, Nuno Miguel Gonçalves Borges de Carvalho , 2006.
Editorial Committees
- Integrated Nonlinear Microwave and Millimitre-wave Circuits
, INMMIC, Nuno Miguel Gonçalves Borges de Carvalho , Conference Vice-Chair, 28-01-2006 to 31-01-2006.
- Guest Editor Transactions on Microwave Theory and Techniques
, IEEE, Nuno Miguel Gonçalves Borges de Carvalho , Guest Editor, 01-09-2005 to 01-09-2006.
- Transactions on Microwave Theory and Techniques Reviewer Board
, IEEE, Nuno Miguel Gonçalves Borges de Carvalho , Member of the Editorial Board, 01-01-2001 to 31-12-2010.
