Joao Nuno Pimentel da Silva Matos

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

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

14-09-2023

FERROVIA 4.0 project contributing to Portuguese railway sector's technological headway

FERROVIA 4.0 project, led locally by Nuno Borges de Carvalho, was officially concluded on July 20th, marking a significant milestone in the railway sector's technological upgrading.

13-09-2022

PhD student Amélia Ramos wins the TICRA Foundation Grant

Amélia Ramos, a PhD student from IT and University of Aveiro, was distinguished with one of the eight TICRA Foundation Grants.

17-06-2022

ESA PHOM Project's Kick-Off

On the 24th of May, there was a kick-off meeting of the project PHOAM - Photonic Assisted Multibeam Phased Array Antenna.

Scientific Achievements

Degrees

PhD, Universidade de Aveiro, 17-11-1995
MSc, Universidade de Coimbra, 01-01-1989
Licenciatura, Universidade de Aveiro, 01-01-1982

Affiliations

Universidade de Aveiro, 01-01-1983, Professor Associado
IEEE, , Member
Ordem dos Engenheiros, , Membro efectivo

Expertise Topics

RF/MW Electronic Circuits and Systems
Radar
Smart antennas
Wireless Power Transmission

Academic Activities

11Lecture courses

Multiple Access Techniques, , Mest. Eng. Electrónica e Telecomunicações

Analysis of Circuits, , Lic. Eng. Electrónica e Telecomunicações

Introduction to the Information and Communications, , Various Courses

Radio Frequency Techniques , , Mestrado Electrónica e Telecomunicações
Tecnicas Laboratoriais em Electrotecnia, Universidade de Aveiro, MIEET
Sistemas Digitais, Universidade de Aveiro, MIEET
Análise de Circuitos, Universidade de Aveiro, Mestrado Integrado em Engenharia de Eletrónica e Telecomunicações

Laboratórios de Eletrónica, Universidade de Aveiro, MIEET

Programação I, Universidade de Aveiro, MIECT

Aplicacionais para Ciências e Engenharia, Universidade de Aveiro, Various

Electrotecnia Teórica, Universidade de Aveiro, MIEET

8Supervision of PhD theses

As Supervisor

Adaptative Antenna Array for LEO Constellations, PhD Student, Amélia da Silva Ramos, Expected conclusion 12-2024
Up-link Architectures for next Generation of LEO Satellite, PhD Student, Bernardo Bento Lopes, Expected conclusion 12-2024
Down-link Architectures for next Generation of LEO Satellite, PhD Student, Raul Miguel Marques Arruela, Expected conclusion 12-2024
Software Defined Radio Digital Beamforming Application to o 5G/Radar Systems, PhD Student, Diogo Botelho Ribeiro Marinho, Expected conclusion 08-2023
Nonuniform 2D Microstrip Antenna Arrays for Wireless Applications, PhD Student, ., Defended 12-2016

As Co-supervisor

Antennas for Satellite and UAVs Communications and Radar, PhD Student, Patricia Alexandra Pereira Bouça, Defended 10-2022
Passive Wireless Sensor Networks, PhD Student, Ricardo Fernandes, Defended 02-2016
Electrical Resonant Coupling, PhD Student, Ricardo Fernandes, Defended 02-2016

27Supervision of MSc theses

As Supervisor

Radar System Using Digital Beamforming Techniques for Target Detection, MSc Student, CÂNDIDO FRANCISCO ALBERTO LUÍS, Expected conclusion 12-2024
Analog Phase Shifters for Smart Antennas with SATCOM5G Applications, MSc Student, GONÇALO ANDRÉ DA COSTA MATOS, Expected conclusion 12-2024
Nonplanar Antenna Arrays for Space Applications, MSc Student, SORAIA CRISTINA PEREIRA SOUTO, Expected conclusion 12-2024
High-Frequency Polarization Reconfigurable Microstrip Patch Antenna, MSc Student, Filipa Domingues Antunes, Concluded 12-2023
Techniques for Evaluation and Minimization of Coupling in Antenna Array Systems, MSc Student, Alexandre Braga Barbosa, Concluded 12-2022
Wide Scanning Conformal Antenna Array for SATCOM/5G Applications, MSc Student, Ângela Rodrigues Jesus Fernandes, Concluded 12-2021
3D-Printed Antennas using Dielectric and Conductive Materials for Modern Systems, MSc Student, Vitor Manuel Sousa Coelho, Concluded 12-2021
Design of a Transmitter/Receiver Front-End Radio Architecture for Satellite Communications, MSc Student, André Costa de Sousa, Concluded 07-2021
Chipless RFID tags for Bar code Replacement, MSc Student, Bernardo Bento Lopes, Concluded 12-2019
3D-Printed radiating structures for mmWave applications, MSc Student, Diogo Rodrigues Helena, Concluded 12-2019
Wideband Antenna Arrays for mmWave applications, MSc Student, JOÃO BERNARDO SANTOS CAIADO, Concluded 12-2019
Design of a Transmitter/Receiver Front-End Radio Architecture for Satellite Communications, MSc Student, JOSE GUILHERME ANTUNES DA SILVA, Concluded 12-2019
Reconfigurable Printed Antennas for mmWave Applications, MSc Student, LUÍS CARLOS PIRES RODRIGUES, Concluded 12-2019
Vector Modulator for Beamforming control architectures in the Ka band, MSc Student, João Henriques Martins, Concluded 07-2019
Multilayer radiating structures for mmWave, MSc Student, Amélia da Silva Ramos, Concluded 12-2018
Dinamic WIRELESS POWER TRANSMISSION (dWPT), MSc Student, André Daniel Araújo Santos, Concluded 12-2018
UWB RADAR for Medical Imaging, MSc Student, Beatriz Carvalho de Melo Ferreira, Concluded 12-2018
Filtro de Cavidade para LTE, MSc Student, Diogo Botelho Ribeiro Marinho, Concluded 12-2018
RADAR Through Walls System, MSc Student, Edgar Alexandre Soares Gonçalves, Concluded 12-2018
Radar Beamforming Antenna, MSc Student, Pedro José da Silva Gonçalves, Concluded 12-2018
Acoustic Communications in Water Pipes, MSc Student, DANIEL DA SILVA ALMEIDA, Concluded 12-2017
Person detection system, MSc Student, Diogo da Silva Matos, Concluded 12-2017
17GHz ISM Antena, MSc Student, MICHAEL RODRIGUES DUARTE, Concluded 12-2017
Antena UWB para imagem médica, MSc Student, Vitor Cruz, Concluded 12-2017

As Co-supervisor

Agregados de Antenas para Redução de Interferências em Telecomunicações, MSc Student, Diogo Afonso Rodrigues Nunes, Concluded 12-2021
Redução de Interferências para DVB-T Usando um Agregado de Antenas, MSc Student, Diogo Henrique Alves Martins, Concluded 12-2021
An antenna for interference reduction in telecommunications, MSc Student, Pedro Alberto Jardim Mostardinha, Concluded 12-2018

2Supervision of Research grants

As Supervisor

BIIC/Nº916/2017- UID/EEA/50008/2013 - Wireless energy transfer based on the electric field, Research Grant, Bernardo Bento Lopes, Concluded 03-2019
BIIC/Nº917/2017- UID/EEA/50008/2013 - • Projeto e desenvolvimento de antenas em estruturas e materiais alternativos, Research Grant, Lucas Sabença Leitão, Concluded 12-2018

Publications

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

37Papers in Journals

Early Access

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. 2169-3536, pp. 4125 - 4136, January, 2022,
| Abstract | Full text (PDF 1 MB) | 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, 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 (Switzerland), 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 (Switzerland), 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 (Switzerland), 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: Journal of the International Measurement Confederation, 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, Measurement: Journal of the International Measurement Confederation, 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: Journal of the International Measurement Confederation, Vol. 28, No. 9, pp. 819 - 820, April, 1992 | BibTex

73Papers in Conferences

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, 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 Conf. on Antennas & 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, The 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 Conf. on Antennas & 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 Conf. on Antennas & 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 Conf. on Antennas & 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 Conf. on Antennas & 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

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 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

Other Scientific Achievements

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

Other Contributions

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);

IT Member Profile

João Matos

14-09-2023

FERROVIA 4.0 project contributing to Portuguese railway sector's technological headway

13-09-2022

PhD student Amélia Ramos wins the TICRA Foundation Grant

17-06-2022

ESA PHOM Project's Kick-Off

Scientific Achievements

As Supervisor

As Co-supervisor

As Supervisor

As Co-supervisor

As Supervisor

Currently running projects1

Closed Projects16