Creating and sharing knowledge for telecommunications

IT Member Profile

... Joao Nuno Pimentel da Silva Matos

Senior Researcher

João Matos

Academic position: Associate Professor
Joining date: 01-01-1999
Roles in IT: Senior Researcher
Thematic Line: Wireless Technologies
Group: Radio Systems – 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

Alternative Personal Web Page

ORCID iD
https://www.orcid.org/0000-0001-7907-1028

Scientific Achievements

  • PhD, Universidade de Aveiro, 17-11-1995
  • MSc, Universidade de Coimbra, 01-01-1989
  • Licenciatura, Universidade de Aveiro, 01-01-1982
  • Universidade de Aveiro, 01-01-1983, Professor Associado
  • IEEE, , Member
  • Ordem dos Engenheiros, , Membro efectivo
  • RF/MW Electronic Circuits and Systems
  • Radar
  • Smart antennas
  • Wireless Power Transmission
30Supervision of MSc theses
As Supervisor
As Co-supervisor
2Books Chapters
  • T. Varum, J. N. Matos, P. Pinho, Detect and Pointing Algorithms Performance for a 2D Adaptive Antenna Array, Chapter in, Antenna Arrays and Beam-formation, Prof. Modar Shbat, Intech Open, Rijeka-Croatia, 2017
  • A. Boaventura, R. D. Fernandes, J. N. Matos, N.B.C. Carvalho, Unconventional RFID Systems, Chapter in, Green RFID Systems, Luca Roselli, Cambridge University Press, 2013
38Papers in Journals
Early Access
  • R. Arruela, T. Varum, J. N. Matos, A Varactor-Based Balanced Biphase Variable Attenuator With a Novel Single Control Voltage Biasing Technique, IEEE Transactions on Microwave Theory and Techniques, Vol., No., pp. 1 - 15, 2025,
    | Abstract     | BibTex
Published
  • F. A. Antunes, A. Ramos, T. Varum, J. N. Matos, Concept and Design of a Multi-Polarization Reconfigurable Microstrip Antenna with Symmetrical Biasing Control, Sensors, Vol. 24, No. 8, pp. 2408 - 2408, April, 2024,
    | Abstract     | BibTex
  • R. Arruela, T. Varum, J. N. Matos, Design of a Compact Ka-Band Reflection-Type Vector Modulator Phase Shifter, IEEE Microwave and Wireless Technology Letters, Vol. 34, No. 1, pp. 53 - 56, January, 2024,
    | Abstract     | BibTex
  • A. Ramos, T. Varum, J. N. Matos, A Review on Mutual Coupling Reduction Techniques in mmWaves Structures and Massive MIMO Arrays, IEEE Access, Vol. 11, No. 11, pp. 143143 - 143166, December, 2023,
    | Abstract     | BibTex
  • R. Arruela, T. Varum, J. N. Matos, A 3.6 GHz Polar Reflection-Type Vector Modulator Phase Shifter With Amplitude Control Capability, IEEE Access, Vol. 11, No. 1, pp. 10687 - 10695, January, 2023,
    | Abstract     | Full text (PDF 3 MBs) | BibTex
  • R. Correia, T. Varum, J. N. Matos, A. Oliveira, N.B.C. Carvalho, User Terminal Segments for Low-Earth Orbit Satellite Constellations: Commercial Systems and Innovative Research Ideas, IEEE Microwave Magazine, Vol. 23, No. 10, pp. 47 - 58, October, 2022 | BibTex
  • P. Bouça, RJCF Figueiredo, J. N. Matos, P. V. Vilarinho, N.B.C. Carvalho, Reconfigurable Three Functional Dimension Single and Dual-Band SDR Front-Ends Using Thin Film BST-Based Varactors, IEEE Access, Vol. 10, No., pp. 4125 - 4136, 2022,
    | Abstract     | Full text (PDF 1 MB) | BibTex
  • P. Bouça, RJCF Figueiredo, A. wlodarkiewicz, A. Tkach, J. N. Matos, P. V. Vilarinho, N.B.C. Carvalho, Design and Characterization of Novel Barium Strontium Titanate Thick Films for Sub-6 GHz RF Applications, IEEE Transactions on Microwave Theory and Techniques, Vol. 1, No. 1, pp. 1 - 1, November, 2021,
    | Abstract     | Full text (PDF 4 MBs) | BibTex
  • T. Varum, J.B.S.C. CAIADO, J. N. Matos, Compact Ultra-Wideband Series-Feed Microstrip Antenna Arrays for IoT Communications, Applied Sciences, Vol. 11, No. 14, pp. 6267 - 6267, July, 2021 | Full text (PDF 5 MBs) | BibTex
  • D. R. H. Helena, A. Ramos, T. Varum, J. N. Matos, The Use of 3D Printing Technology for Manufacturing Metal Antennas in the 5G/IoT Context, Sensors, Vol. 21, No. 10, pp. 3321 - 3321, May, 2021,
    | Abstract     | BibTex
  • U.G. Gustavsson, P. F. Frenger, C. Fager, T. Eriksson, H. Zirath, F. Dielacher, C. Studer, A. Pärssinen, R. Correia, J. N. Matos, D. Belo, N.B.C. Carvalho, Implementation Challenges and Opportunities in Beyond-5G and 6G Communication, IEEE Journal of Microwaves, Vol. 1, No. 1, pp. 86 - 100, January, 2021 | BibTex
  • A. Navarro, P. Mostardinha, T. Varum, J. N. Matos, S. Maslovski, Double-Dielectric Microstrip Ultrahigh-Frequency Antenna for Digital Terrestrial Television, Applied Sciences, Vol. 10, No. 23, pp. 8640 - 8640, December, 2020 | BibTex
  • A. Ramos, T. Varum, J. N. Matos, Compact N-Band Tree-Shaped Multiplexer-Based Antenna Structures for 5G/IoT Mobile Devices, Sensors, Vol. 20, No. 21, pp. 6366 - 6366, November, 2020,
    | Abstract     | BibTex
  • R. Arruela, D. MARINHO, T. Varum, J. N. Matos, Design and Characterization of an IQ Reflection-Type Vector Modulator for Ka-Band Using PIN Diodes, IEEE Access, Vol. 8, No., pp. 212855 - 212864, November, 2020,
    | Abstract     | Full text (PDF 2 MBs) | BibTex
  • D. MARINHO, R. Arruela, T. Varum, J. N. Matos, Software-Defined Radio Beamforming System for 5G/Radar Applications, Applied Sciences, Vol. 10, No. 20, pp. 7187 - 7187, October, 2020,
    | Abstract     | Full text (PDF 5 MBs) | BibTex
  • L. S. L. Leitão, M. S. Neves, F. Pinto, G. Maniezo, T. Ferreira, J. N. Matos, A. Rocha, 2019 IEEE AP-S Student Design Contest-Team KnowAntenna [Education Corner], IEEE Antennas and Propagation Magazine, Vol. 62, No. 5, pp. 120 - 125, October, 2020,
    | Abstract     | BibTex
  • B Lopes, T. Varum, J. N. Matos, Use of FrFT in an indoor scenario for chipless RFID tags ID recovery, IET Microwaves, Antennas and Propagation, Vol. 14, No. 12, pp. 1316 - 1322, September, 2020,
    | Abstract     | BibTex
  • D. R. H. Helena, A. Ramos, T. Varum, J. N. Matos, Antenna Design Using Modern Additive Manufacturing Technology: A Review, IEEE Access, Vol. 8, No. 8, pp. 1 - 20, September, 2020,
    | Abstract     | Full text (PDF 4 MBs) | BibTex
  • B Lopes, T. Ferreira, J. N. Matos, Design Guidelines for Gap Coupled Spiral Microstrip Resonators in Chipless RFID Tags, IEEE Journal of Radio Frequency Identification, Vol. 1, No. 1, pp. 1 - 1, July, 2020,
    | Abstract     | BibTex
  • L. Rodrigues, T. Varum, J. N. Matos, Reconfigurable Diplexer-Based Filtenna for Tx/Rx Operation in Mobile Satellite Terminals, Sensors, Vol. 20, No. 8, pp. 2333 - 2333, April, 2020 | BibTex
  • L. Rodrigues, T. Varum, J. N. Matos, The Application of Reconfigurable Filtennas in Mobile Satellite Terminals, IEEE Access, Vol. 1, No. 1, pp. 1 - 1, April, 2020 | BibTex
  • P. Bouça, J. N. Matos, S. Cunha, N.B.C. Carvalho, Low-Profile Aperture-Coupled Patch Antenna Array for CubeSat Applications, IEEE Access, Vol. 8, No. 19313781, pp. 20473 - 20479, January, 2020 | BibTex
  • A. Ramos, T. Varum, J. N. Matos, Compact Multilayer Yagi-Uda Based Antenna for IoT/5G Sensors, Sensors, Vol. 18, No. 9, pp. 2914 - 2914, September, 2018 | BibTex
  • D. Malafaia, T. Varum, D. Matos, J. N. Matos, J. Vieira, The concept of a fully electronic beamforming antenna array for modern radar systems, Microwave and Optical Tech. Letters, Vol. 60, No. 7, pp. 1696 - 1702, May, 2018 | BibTex
  • M. DUARTE, T. Varum, J. N. Matos, P. Pinho, In-house development of 17 GHz antennas: Potentials and difficulties, URSI Radio Science Bulletin, Vol. 2018, No. 364, pp. 45 - 54, March, 2018 | BibTex
  • T. Varum, J. N. Matos, P. Pinho, Non-Uniform Microstrip Antenna Array for DSRC in Single-Lane Structures, Sensors, Vol. 16, No. 12, pp. 2101 - 2101, December, 2016 | BibTex
  • T. Varum, J. N. Matos, P. Pinho, R. Abreu, Nonuniform Broadband Circularly Polarized Antenna Aray for Vehicular Communications, IEEE Transactions on Vehicular Technology, Vol. 65, No. 9, pp. 7219 - 7227, September, 2016,
    | Abstract     | BibTex
  • T. Varum, J. N. Matos, P. Pinho, R. Abreu, Printed nonuniform antenna array for WI-FI sectorized communications, Microwave and Optical Tech. Letters, Vol. 57, No. 9, pp. 2037 - 2041, September, 2015 | BibTex
  • R. D. Fernandes, J. N. Matos, N.B.C. Carvalho, Resonant Electrical Coupling: Circuit Model and First Experimental Results, IEEE Transactions on Microwave Theory and Techniques, Vol. 63, No. 9, pp. 2983 - 2990, September, 2015 | BibTex
  • T. Varum, J. N. Matos, P. Pinho, Detect and pointing algorithm's performance for a planar smart antenna array: a review, Applied Computational Electromagnetics Society Journal, Vol. 30, No. 8, pp. 824 - 837, August, 2015 | BibTex
  • R. D. Fernandes, J. N. Matos, N.B.C. Carvalho, Low-power ultra-wide band pulse generator based on a PIN diode, IET Microwaves, Antennas and Propagation, Vol. 9, No. 11, pp. 1230 - 1232, August, 2015 | BibTex
  • T. Varum, J. N. Matos, P. Pinho, Direction of Arrival Estimaation Analysis Using a 2D Antenna Array, Procedia Technology, Vol. 17, No. 1, pp. 617 - 624, November, 2014 | BibTex
  • J. Dias, J. N. Matos, A. Oliveira, The Charge Collector System, Procedia Technology, Vol. 17, No. 1, pp. 130 - 137, November, 2014,
    | Abstract     | BibTex
  • T. Varum, J. N. Matos, P. Pinho, R. Abreu, A. Oliveira, J.A. Alves, Microstrip Antenna Array for Multiband Dedicated Short Range Communications, Microwave and Optical Tech. Letters, Vol. 53, No. 12, pp. 2794 - 2796, December, 2011,
    | Abstract     | BibTex
  • V.M. Monteiro, J. N. Matos, Simulador de Comunicação com Modulação Spread Spectrum, Electrónica e Telecomunicações, Vol. 2, No. 7, pp. 914 - 919, January, 2000 | BibTex
  • B. Wedding, K. Köfers, B. Franz, D. Mathoorasing, C. Kazmierski, P. Monteiro, J. N. Matos, Dispersion-supported transmission at 20 Gbit/s over 53 Km standard singlemode fibre, Measurement, Vol. 31, No. 7, pp. 566 - 567, March, 1995 | BibTex
  • P. Monteiro, J. N. Matos, A. Gameiro, R. F. Rocha, 20 Gbit/s DR Based Timing Recovery Circuit, Electronics Letters, Vol. 30, No. 10, pp. 799 - 800, May, 1994 | BibTex
  • P. Monteiro, J. N. Matos, A. Gameiro, R. F. Rocha, 10 Gbit/s Timing Recovery Circuit Using Dielectric Resonator and Active Bandpass Filters, Measurement, Vol. 28, No. 9, pp. 819 - 820, April, 1992 | BibTex
74Papers in Conferences
  • T. Varum, J. N. Matos, Frequency Tuning of a K-band Stacked Microstrip Patch for SATCOM Applications using a Slot, IEEE IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting IEEE APS, Ottawa, Canada, Vol., pp. -, July, 2025 | BibTex
  • A. Ramos, T. Varum, J. N. Matos, Measurement Setup of a Ka band Switchable Circularly Polarized Phased Array Module for LEO Satellite Communications Systems, IEEE ICEAA International Conference on Electromagnetics in Advanced Applications / IEEE APWC IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications ICEAA/IEEE APWC, Lisboa, Portugal, September, 2024 | BibTex
  • A. Ramos, T. Varum, J. N. Matos, Multilayer K-Band 4×4 Planar Array for Satellite Communications, IEEE ICEAA International Conference on Electromagnetics in Advanced Applications / IEEE APWC IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications ICEAA/IEEE APWC, Lisboa, Portugal, September, 2024 | BibTex
  • F. A. Antunes, A. Ramos, T. Varum, J. N. Matos, Phase Shifting Device with a Single Symmetric Control for Application in Reconfigurable Antennas, IEEE International Symp. on Antennas and Propagation - IEEE AP-S/USNC-URSI, Florence, Italy, July, 2024,
    | Abstract     | BibTex
  • T. Varum, R. Correia, A. Ramos, R. Arruela, B Lopes, J. N. Matos, STRx –Transmission and Reception System with Electronical Orientation for LEO SatCom Constellations, IEEE International Symp. on Antennas and Propagation - IEEE AP-S/USNC-URSI, Florence, Italy, July, 2024 | BibTex
  • A. Ramos, T. Varum, J. N. Matos, Mutual Coupling Reduction Techniques for mmWaves Antenna Arrays, IEEE International Symp. on Antennas and Propagation - IEEE AP-S/USNC-URSI, Florence, Italy, Vol., pp. -, July, 2024,
    | Abstract     | BibTex
  • B Lopes, R. Correia, J. N. Matos, Design of an Integrated K-Band SWL for Enhanced Bandwidth in Microstrip Circuits, IEEE International Symp. on Antennas and Propagation - IEEE AP-S/USNC-URSI, Florence, Italy, July, 2024,
    | Abstract     | BibTex
  • A. Ramos, T. Varum, J. N. Matos, A Simple Technique to Maximize Isolation in Compact mmWaves Antenna Arrays, European Conference on Antennas and Propagation - EuCap, Glasgow, United Kingdom, Vol., pp. -, March, 2024,
    | Abstract     | BibTex
  • B Lopes, R. Correia, J. N. Matos, Design and Optimization of a GaAs Millimeter-Wave On-Chip Patch Antenna, IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting IEEE AP-S/URSI, Portland, United States, July, 2023,
    | Abstract     | BibTex
  • A. Ramos, T. Varum, R. Correia, J. N. Matos, A Multilayer Circularly Polarized Ka-Band Phased Array Module using Sequential Rotation, IEEE International Symposium on Antennas and Propagation, Denver, United States, Vol., pp. -, July, 2022,
    | Abstract     | Full text (PDF 443 KBs) | BibTex
  • VC COELHO, G. V. R. X. Xavier, D.F.A. Albuquerque, A. Oliveira, J. N. Matos, N.B.C. Carvalho, Link budget analysis of an FMCW RADAR altimeter for a CubeSat, ESA Antenna Workshop on Antennas for Earth Observation, Science, Telecommunication and Navigation Space Missions, Conference online, May, 2022,
    | Abstract     | BibTex
  • VC COELHO, T. Varum, J. N. Matos, 3D-Printed wide beamwidth lens antennas for beamforming coverage improvement, European Conference on Antennas and Propagation - EuCap, Madrid, Spain, March, 2022 | BibTex
  • A. Ramos, T. Varum, J. N. Matos, A Wideband Stripline-to-Stripline Transition for K/Ka-Bands, IEEE AP-S/URSI International Symp., Singapore, Singapore, December, 2021,
    | Abstract     | BibTex
  • A. Ramos, T. Varum, J. N. Matos, Compact Circularly Polarized Aperture Fed Patch Antenna for LEO Satellite Constellations, IEEE AP-S/URSI International Symp., Singapore, Singapore, December, 2021,
    | Abstract     | BibTex
  • P. Bouça, RJCF Figueiredo, A. wlodarkiewicz, A. Tkach, J. N. Matos, P. V. Vilarinho, N.B.C. Carvalho, Barium Strontium Titanate Thick Films for Tunable Software-Defined Radio Front-Ends, IEEE International Microwave Symposium IMS, Atlanta, United States, June, 2021,
    | Abstract     | BibTex
  • J. N. Matos, T. Varum, R. Correia, SDA-Software Defined Antenna, Joint EuCNC & 6G Summit, Conference online, June, 2021 | BibTex
  • P. Bouça, RJCF Figueiredo, J. N. Matos, P. V. Vilarinho, N.B.C. Carvalho, Intermodulation Distortion Analysis of Microwave Tunable Filters Using Barium Strontium Titanate Capacitor and Varactor Diode, European Microwave Integrated Circuits - EuMIC, Utrecht, Netherlands, January, 2021 | BibTex
  • A. Ramos, D. R. H. Helena, T. Varum, J. N. Matos, 3D Printed Horn Antenna for Satellite Communication Systems, 14.º Congresso do Comité Português da URSI, Conference online, December, 2020,
    | Abstract     | BibTex
  • T. Varum, A. Ramos, J.B.S.C. CAIADO, J. N. Matos, Wideband Series-Fed Microstrip Antenna Array for 5G/IoT Systems, 12th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing- CSNDSP, Porto, Portugal, July, 2020 | BibTex
  • A. Ramos, T. Varum, J. N. Matos, Compact Dual-Band Printed Monopole for 5G/IoT, 12th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing CSNDSP, Porto, Portugal, July, 2020,
    | Abstract     | Full text (PDF 611 KBs) | BibTex
  • L. Rodrigues, T. Varum, J. N. Matos, Reconfigurable Filtenna for 5G/LEO Constellations Mobile Terminals, European Conference on Antennas and Propagation - EuCap, Copenhagen, Denmark, April, 2020 | BibTex
  • D. R. H. Helena, A. Ramos, T. Varum, J. N. Matos, Inexpensive 3D-Printed Radiating Horns for Customary Things in IoT Scenarios, European Conference on Antennas and Propagation - EuCap, Copenhagen, Denmark, April, 2020 | Full text (PDF 428 KBs) | BibTex
  • P.F. Fonseca, V. Tavares, J. N. Matos, M. Gericota, Recent activities by IEEE Education Society Portugal Chapter, EDUCON – IEEE Global Engineering Education Conference EDUCON, Porto, Portugal, April, 2020 | BibTex
  • J.B.S.C. CAIADO, T. Varum, J. N. Matos, Ultra-wideband log-periodic antenna array for LEO constellations terminals, Congresso do Comité Português da URSI, Lisboa, Portugal, December, 2019 | BibTex
  • J. H. M. Martins, T. Varum, J. N. Matos, Printed Vector Modulator for 5G Communications Systems, International Microwave and Optoelectronics Conf. - IMOC, Aveiro, Portugal, November, 2019 | Full text (PDF 628 KBs) | BibTex
  • L. Rodrigues, T. Varum, J. N. Matos, Concept of a Tri-band Frequency Reconfigurable Microstrip Patch Antenna, International Microwave and Optoelectronics Conf. - IMOC, Aveiro, Portugal, November, 2019 | BibTex
  • R. Arruela, D. MARINHO, T. Varum, J. N. Matos, A Ka-band Frontend for mmWave MIMO and Beamforming Applications, International Microwave and Optoelectronics Conf. - IMOC, Aveiro, Portugal, November, 2019 | Full text (PDF 641 KBs) | BibTex
  • D. MARINHO, R. Arruela, T. Varum, J. N. Matos, Application of Digital Beamforming to Software Defined Radio 5G/Radar Systems, International Microwave and Optoelectronics Conf. - IMOC, Aveiro, Portugal, November, 2019 | Full text (PDF 1 MB) | BibTex
  • A. Ramos, T. Varum, J. N. Matos, Design of a 28/38 GHz Compact Dual-Band Printed Monopole for 5G/IoT Sensors, Microwave and Optoelectronics Conference (IMOC) SBMO/IEEE MTT-S International IMOC, Aveiro, Portugal, November, 2019,
    | Abstract     | BibTex
  • D. R. H. Helena, A. Ramos, T. Varum, J. N. Matos, Evaluation of Different Materials to Design 3D Printed Horn Antennas for Ku-Band, Microwave and Optoelectronics Conference (IMOC) SBMO/IEEE MTT-S International IMOC, Aveiro, Portugal, November, 2019,
    | Abstract     | BibTex
  • B Lopes, J. N. Matos, Modelling of the Multi-Resonant Circuit Frequency Behaviour in Chipless RFID tags, IEEE RFID-TA IEEE International Conference on RFID Technology and Applications IEEE RFID-TA, Pisa, Italy, September, 2019,
    | Abstract     | BibTex
  • T. Varum, J. N. Matos, Compact Slot Antenna Array for 5G Communications, IEEE AP-S/URSI International Symp., Atlanta, United States, July, 2019 | BibTex
  • A. Ramos, T. Varum, J. N. Matos, Integrated Multilayer Yagi Antenna for 5G, IEEE AP-S/URSI International Symp., Atlanta, United States, July, 2019 | BibTex
  • B Lopes, J. N. Matos, A Novel Procedure for Chipless RFID Tags Design, IEEE International Young Engineers Forum on Electrical and Computer Engineering YEF-ECE, Costa da Caparica, Portugal, May, 2019,
    | Abstract     | BibTex
  • T. Varum, L. S. L. Leitão, J. N. Matos, Dual Band Printed Monopole Antenna for Wi-Fi Communications Systems, European Conference on Antennas and Propagation - EuCap, Krakow, Poland, April, 2019 | BibTex
  • T. Varum, A. Ramos, J. N. Matos, Planar Microstrip Series-fed Array for 5G Applications with Beamforming Capabilities, IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies IMWS-5G, Dublin, Ireland, August, 2018 | BibTex
  • T. Varum, J. N. Matos, Substrate Integrated Waveguide Antenna Array for Modern Beamforming Radars, IEEE AP-S/URSI International Symp., Boston, United States, July, 2018 | BibTex
  • T. Varum, M. DUARTE, J. N. Matos, P. Pinho, Microstrip Antenna for IoT/WLAN Applications in Smart Homes at 17GHz, European Conference on Antennas and Propagation - EuCap, London, United Kingdom, April, 2018 | BibTex
  • M. DUARTE, T. Varum, J. N. Matos, P. Pinho, In house development of 17GHz antennas: potentialities and difficulties, Congresso do Comité Português da URSI, Lisboa, Portugal, November, 2017 | BibTex
  • P.F. Fonseca, P. Pedreiras, P. M. Cabral, B.C. Cunha, J. N. Matos, FS Silva, Motivating First Year Students for an Engineering Degree, CISPEE - International Conference of the Portuguese Society for Education in Engineering CISPEE, Bragança, Portugal, October, 2016 | BibTex
  • T. Varum, J. N. Matos, P. Pinho, Non-uniform microstrip antenna array for tolling using a single access lane, IEEE AP-S/URSI International Symp., Fajardo, Puerto Rico, Vol. 1, pp. 1 - 2, July, 2016 | BibTex
  • T. Varum, J. N. Matos, P. Pinho, Microstrip antenna array for a new tolling approach in highways access, Conf. on Telecommunications - ConfTele, Aveiro, Portugal, Vol. 1, pp. 1 - 4, September, 2015,
    | Abstract     | BibTex
  • J. Silva, J. N. Matos, Design of a Power Amplifier for IEEE802.11p applications, IEEE International Conference on Computer as Tool EUROCON 2015, Salamanca, Spain, Vol. 1, pp. 1 - 4, September, 2015,
    | Abstract     | BibTex
  • T. Varum, J. N. Matos, P. Pinho, V. C. Duarte, Circularly polarized microstrip antenna array for the Ka-band, IEEE AP-S/URSI International Symp., Vancouver, Canada, Vol. 1, pp. 1864 - 1865, July, 2015 | BibTex
  • R. D. Fernandes, J. N. Matos, N.B.C. Carvalho, Constructive combination of resonant magnetic coupling and resonant electrical coupling, IEEE Wireless Power Transfer Conf. - WPTC, Boulder, CO, United States, Vol. 0, pp. 1 - 3, May, 2015 | BibTex
  • T. Varum, J. N. Matos, P. Pinho, R. Abreu, Non-uniform printed antenna array for wireless communications in sports arenas, European Conference on Antennas and Propagation - EuCap, Lisbon, Portugal, Vol. 1, pp. 1 - 4, April, 2015 | BibTex
  • CAC Cruz, A. Oliveira, J. Ferreira, J. N. Matos, Implementing Deterministic Vehicular Communications: Rationale and Challenges, IEEE Vehicular Networking Conf. - VNC, Paderborn, Germany, Vol. 1, pp. 1 - 4, December, 2014 | BibTex
  • R. F. Fernandes, J. N. Matos, P. Pinho, T. Varum, Wi-Fi intruder detection: An experimental approach, International Conf. on Emerging Security Information, Systems and Technologies - SECURWARE, Lisbon, Portugal, Vol. 1, pp. 101 - 105, November, 2014,
    | Abstract     | BibTex
  • R. D. Fernandes, J. N. Matos, N.B.C. Carvalho, Wireless power transmission based on resonant electrical coupling, European Microwave Week/European Microwave Conf., Rome, Italy, Vol. -, pp. - - -, October, 2014,
    | Abstract     | BibTex
  • R. F. Fernandes, J. N. Matos, P. Pinho, T. Varum, Wi-Fi Intruder Detection, IEEE Conf. on Wireless Sensors - ICWiSe, Kuala Lumpur, Malaysia, Vol. 1, pp. 96 - 99, October, 2014 | BibTex
  • T. Varum, J. N. Matos, P. Pinho, R. Abreu, Non-uniform microstrip antenna array for Rx DSRC communications, IEEE International Symp. on Antennas and Propagation - IEEE AP-S/USNC-URSI, Memphis, United States, Vol. 1, pp. 1071 - 1072, July, 2014 | BibTex
  • T. Varum, J. N. Matos, P. Pinho, R. Abreu, The impact of different power dividers used in a non-uniform planar antenna array, IEEE International Symp. on Antennas and Propagation - IEEE AP-S/USNC-URSI, Memphis, United States, Vol. 1, pp. 1690 - 1691, July, 2014 | BibTex
  • R. D. Fernandes, J. N. Matos, N.B.C. Carvalho, Behavior of resonant electrical coupling in terms of range and relative orientation, IEEE Wireless Power Transfer Conf. - WPTC, Jeju City, Korea, South, Vol. 1, pp. 118 - 121, May, 2014,
    | Abstract     | BibTex
  • P.F. Fonseca, J. N. Matos, N.B.C. Carvalho, P. Pedreiras, Uma experiência na motivação de alunos do 1.º ano de Engenharia., Congresso Luso Moçambicano de Engenharia - CLME, Inhambane, Mozambique, Vol. 1, pp. . - ., April, 2014,
    | Abstract     | BibTex
  • J. Dias, J. N. Matos, A. Oliveira, THE CHARGE COLLECTOR SYSTEM - A New NFC and Smartphone-based Toll Collection System, Conf. on Electronics, Telecommunications and Computers - CETC, Lisbon, Portugal, Vol. 1, pp. 1 - 1, December, 2013,
    | Abstract     | BibTex
  • J. Dias, A. Oliveira, J. N. Matos, The Charge Collector System (C2S) – A New NFC and Smartphone-based Toll Collection System, IARIA International Conf. on Advances in Vehicular Systems, Technologies and Applications - VEHICULAR, Nice, France, Vol. 1, pp. 1 - 2, July, 2013,
    | Abstract     | BibTex
  • N. Almeida, J. N. Matos, A. Oliveira, J.A. Alves, A Hardware-Software Platform for Digital Pre-distortion Development and Validation, IEEE Eurocon, Zagreb, Croatia, Vol. 1, pp. 1 - 1, July, 2013,
    | Abstract     | BibTex
  • T. Varum, J. N. Matos, P. Pinho, A. Oliveira, Printed Antenna for DSRC Systems with Omnidirectional Circular Polarization, IEEE Conf. on Intelligent Transportation Systems, Anchorage, United States, Vol. 1, pp. 1 - 4, September, 2012,
    | Abstract     | BibTex
  • T. Varum, J. N. Matos, P. Pinho, Omnidirectional Circularly Polarized Antenna for DSRC Systems, IEEE AP-S/URSI International Symp., Chicago, United States, Vol. 1, pp. 1 - 2, July, 2012,
    | Abstract     | BibTex
  • R. D. Fernandes, A. Boaventura, N.B.C. Carvalho, J. N. Matos, Increasing the range of wireless passive sensor nodes using multisines, IEEE International Conf. on RFID-Technology and Applications, Barcelona, Spain, Vol. 1, pp. 549 - 553, September, 2011,
    | Abstract     | BibTex
  • T. Varum, J. N. Matos, P. Pinho, Printed antenna for On-Board Unit of a DSRC System, IEEE AP-S/URSI International Symp., Spokane, United States, Vol., pp. 457 - 460, July, 2011,
    | Abstract     | BibTex
  • T. Varum, J. N. Matos, P. Pinho, R. Abreu, Microstrip antenna for vehicular communications with improved axial ratio band, Conf. on Telecommunications - ConfTele, Lisbon, Portugal, Vol., pp. 1 - 4, April, 2011,
    | Abstract     | BibTex
  • R. D. Fernandes, N.B.C. Carvalho, J. N. Matos, Design of a battery-free wireless sensor node, Conf. on Telecommunications - ConfTele, Lisboa, Portugal, Vol. 1, pp. 1 - 4, April, 2011,
    | Abstract     | BibTex
  • N. Almeida, J. N. Matos, J.A. Alves, A Front-End to Vehicular Communications, IEEE Region 8 EUROCON 2011 International Conf. on Computer as a Tool joint with the Conf. on Telecommunications, Lisboa, Portugal, Vol. 1, pp. 1 - 1, April, 2011,
    | Abstract     | BibTex
  • J. N. Matos, A. Oliveira, T. Meireles, N. F. Ferreira, P.M. Mar, D. C. Carona, A. Serrador Serrador, Emergent Vehicular Communications: Applications, Standards and Implementation, URSI Seminar of the Portuguese Committee, Lisboa, Portugal, Vol. 1, pp. 1 - 1, September, 2010,
    | Abstract     | BibTex
  • T. Varum, J. N. Matos, P. Pinho, Antena para comunicações DSRC, URSI Seminar of the Portuguese Committee, Lisbon, Portugal, Vol., pp. 1 - 4, September, 2010,
    | Abstract     | BibTex
  • D. C. Carona, A. Serrador Serrador, P.M. Mar, R. Abreu, N. F. Ferreira, T. Meireles, J. N. Matos, J.A. Alves, A 802.11p prototype implementation, IEEE Intelligent Vehicles Symp. - IV, San Diego, United States, Vol. 1, pp. 1116 - 1121, June, 2010,
    | Abstract     | Full text (PDF 816 KBs) | BibTex
  • P.M. Mar, R. Abreu, J. N. Matos, The IEEE 802.11p Physical Layer implemented in a FPGA for the DSRC 5.9GHz Project, Jornadas sobre Sistemas Reconfiguráveis - REC, Aveiro, Portugal, Vol. 1, pp. 1 - 1, February, 2010,
    | Abstract     | Full text (PDF 57 KBs) | BibTex
  • D. C. Carona, R. Prata, A. Serrador Serrador, R. Abreu, J. N. Matos, Development of a Communication System Following 802.11p and WAVE, World Congress for ITS Systems and Services, Stockholm, Sweden, Vol. 1, pp. 1 - 1, September, 2009 | BibTex
  • N. F. Ferreira, T. Meireles, Jo. A. Fonseca Fonseca, J. N. Matos, J. Gomes, WAVE Based Architecture for Safety Services Deployment in Vehicular Networks, International Conf. on Fieldbuses, Ansan, Korea, South, Vol. 1, pp. 1 - 1, May, 2009 | BibTex
  • J. N. Matos, R. Abreu, J. Gomes, Low-Cost, Compatible Dedicated Short Range Communications Chain for Road, Conf. on Telecommunications - ConfTele, Feira, Portugal, Vol. 1, pp. 1 - 1, May, 2009,
    | Abstract     | Full text (PDF 326 KBs) | BibTex
  • D. Morais, L. Domingos, R. Abreu, J. N. Matos, J. Gomes, A Possible MAC Layer Implementation for Dedicated Short Range Communications, Conf. on Telecommunications - ConfTele, Feira, Portugal, Vol. 1, pp. 1 - 1, May, 2009,
    | Abstract     | Full text (PDF 345 KBs) | BibTex
  • V.M. Monteiro, J. N. Matos, A. Gameiro, UTRA TDD Synchronization Unit, Conf. on Telecommunications - ConfTele, Figueira da Foz, Portugal, Vol. III, pp. 257 - 260, April, 2001 | BibTex
  • V.M. Monteiro, J. N. Matos, Spread Spectrum Modulation Communication Simulator, URSI General Assembly, Zaragoza, Spain, Vol. XV, pp. 359 - 360, September, 2000 | BibTex

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 Projects16

Acronym Name Funding Agency Start date Ending date
BEACON ScalaBle & Low-Power Microwave Photonics for FlexiblE, TerAbit Telecom Payloads & High-speed Coherent Inter-satellite LiNks EU/FP7 01-02-2014 01-02-2017
FERROVIA 4.0 SI I&DT Empresarial (Programas Mobilizadores) Nr. 046111 - FERROVIA 4.0 P2020 01-07-2020 30-06-2023
GAMACHIP SI I&DT Copromoção Nr. 033688 - GAMACHIP Plataforma SDR integrada e multifuncional para comunicações espaciais P2020 01-06-2018 30-11-2020
Headway DSRC 5,9GHz BIT/BRISA 01-01-2010 01-12-2010
HEADWAY DSRC 5,9GHz BRISA 01-01-2009 01-12-2009
HEADWAY DSRC 5,9GHz BIT/BRISA 01-01-2011 01-12-2012
ICSI Intelligent Cooperative Sensing for Improved traffic efficiency EC/FP7 01-11-2012 01-12-2015
INFANTE SI I&DT Copromoção Nr. 024534 - INFANTE Satélite para aplicações marítimas e comunicações a partir de constelações P2020 01-11-2017 31-10-2021
LOPES Person Location ADI, TELESAL 01-03-2007 01-07-2008
PHOAM Photonic Assisted Multibeam Phased Array Antenna ESA 01-04-2022 30-06-2024
RETIOT Utilização de Tecnologias de Reflectometría no melhoramento do futuro Internet das Coisas e Sistemas Ciber-Físicos P2020 09-01-2017 30-06-2021
RFID - Sticker Tags Sistemas RFID - Sticker Tags 01-01-2013 01-12-2013
RFoF DSRC Fiber Optic connection to the antenna DSRC 01-01-2014 01-12-2014
SPIDER Sensor Platform & network for Indoor Deployment and Exterior-based Radiofrequency awareness EU/H2020 01-11-2016 01-11-2017
SST 2020 Space Surveillance and Tracking 2020 EU/H2020, Ministério da Defesa 26-05-2020 30-06-2023
STRx SI I&DT Copromoção Nr. 033623 - STRx - Sistema de transmissão e receção de sinal de orientação eletrónica para a próxima geração de constelações de satélites P2020 01-05-2019 31-12-2022
9Awards
  • M. S. Neves, A. Ramos, F. A. Antunes, J. Maltez Maltez, V. Fernandes Fernandes, J. N. Matos, Third Place Award for Student Design Contest at the 2021 IEEE AP-S USNC-URSI, Design of an Array for DOA Detection and Visualization, granting the third place in the Student Design Contest at the 2021 IEEE AP-S USNC-URSI, Singapore, 2021., 31-12-2021
  • A. Ramos, D. R. H. Helena, T. Varum, J. N. Matos, 3D Printed Horn Antenna for Satellite Communication Systems, Third Place Award for Best Student Paper Award from 14th Congress of the Portuguese Committee of URSI with the paper "3D Printed Horn Antenna for Satellite Communication Systems"., 01-12-2020
  • A. Ramos, T. Varum, J. N. Matos, Smart Antennas for the Future Low-Earth Orbit Satellite Constellations, Best Pitch Electrical Engineering in Research Day of University of Aveiro in June 24-26, 2020, 01-06-2020
  • J.B.S.C. CAIADO, T. Varum, J. N. Matos, Ultra-wideband Log-periodic Antenna Array for LEO Constellations Terminals, 3rd Place for Best Student Paper Award from 13th Congress of the Portuguese Committee of URSI with the paper "Ultra-wideband Log-periodic Antenna Array for LEO Constellations Terminals", 17-12-2019, 01-12-2019
  • J. N. Matos, A. Rocha, L. S. L. Leitão, M. S. Neves, T. Ferreira, IEEE Antennas and Propagation Society 2019 Contest Student 2nd Place Award, Goal: Propose a setup that characterizes/demonstrates the properties of an antenna system and provide educational material to explain these properties. Specifications The setup must be able to measure/demonstrate some properties of an antenna system. These properties include (but are not limited to) impedance, efficiency, frequency of operation, bandwidth, gain, polarization, beam width, RCS, MIMO performance… The results must be displayed in real time. The setup and procedure must be easy to understand for non-specialists. The setup must be easy to reproduce in a classroom. The setup must be designed using the non-dedicated/non-specialized equipment. The teams are encouraged to use devices as mobile phones, small drones, or any commercially available device that is NOT specifically intended for antenna/RF testing. The teams have to explain the theory behind their demonstration setup in a simple way (so that it can be understood by non-engineers.) Step-by-step instructions to allow reproducing the system for anyone who wants to use it for teaching purposes have to be provided. Merit will be assigned to designs based on the following criteria, equally weighted: - Creativity and justification of the design; - Capability of the system to show the properties of the system under test; - Use of non-standard equipment and DIY strategies; - Quality of the experimental model and results; - Educational value and clarity of the DIY/demonstration instructions. Existing licensed software at the university (e.g., electromagnetic simulation software) or free software may be used. Any other commercial software used for the project should be included in the budget. The total production cost for the entire system must be less than US$1,500., 01-07-2019
  • R. D. Fernandes, J. N. Matos, N.B.C. Carvalho, Wireless energy harvesting design competition at the International Microwave Symposium, Second place, 01-05-2015
  • R. D. Fernandes, J. N. Matos, N.B.C. Carvalho, Research day 2014 at the University of Aveiro (poster session), Best poster award, 01-06-2014
  • R. D. Fernandes, J. N. Matos, N.B.C. Carvalho, Wireless Power Transfer Conference 2014, Best paper award, 01-05-2014
  • R. D. Fernandes, N.B.C. Carvalho, J. N. Matos, Fraunhofer Portugal Challenge 2011, Winner of the MSc category, 01-10-2011
1Conference Committees
  • IEEE International Microwave Workshop Series on ''RF Front-ends for Software Defined and Cognitive Radio Solutions'' - IMWS, Organizing Committee, 2011
1Refereeing Journals
  • IEEE Transactions on Education
    2012, 1 review(s);

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