Search Results - "Matos, Joao Nuno"

Implementation Challenges and Opportunities in Beyond-5G and 6G Communication by Gustavsson, Ulf, Frenger, Pal, Fager, Christian, Eriksson, Thomas, Zirath, Herbert, Dielacher, Franz, Studer, Christoph, Parssinen, Aarno, Correia, Ricardo, Matos, Joao Nuno, Belo, Daniel, Carvalho, Nuno Borges

“…As 5G New Radio (NR) is being rolled out, research effort is being focused on the evolution of what is to come in the post-5G era. In order to meet the diverse…”
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A 3.6 GHz Polar Reflection-Type Vector Modulator Phase Shifter With Amplitude Control Capability by Arruela, Raul, Varum, Tiago, Matos, Joao Nuno

“…A new passive vector modulator phase shifter (VMPS) based on a polar architecture is presented in this paper, suitable to be used in advanced beamforming…”
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Antenna Design Using Modern Additive Manufacturing Technology: A Review by Helena, Diogo, Ramos, Amelia, Varum, Tiago, Matos, Joao Nuno

“…Three-dimensional (3D) printing technology is an area of research that has received great attention in the last decade and it is pointed out by many as the…”
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The Application of Reconfigurable Filtennas in Mobile Satellite Terminals by Rodrigues, Luis, Varum, Tiago, Matos, Joao Nuno

“…Reconfigurable antennas play an important role in wireless communication systems as the physical and electrical properties of their structures can be modified,…”
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Low-Profile Aperture-Coupled Patch Antenna Array for CubeSat Applications by Bouca, Patricia, Matos, Joao Nuno, Cunha, Sergio Reis, Carvalho, Nuno Borges

“…This paper presents the design, simulation, and measurement results of a dual aperture-coupled microstripline-fed antenna array with circular polarization at…”
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Resonant Electrical Coupling: Circuit Model and First Experimental Results by Dias Fernandes, Ricardo, Matos, Joao Nuno, Borges Carvalho, Nuno

“…In this paper, the feasibility of resonant electrical coupling as a wireless power transfer technique is studied. A detailed comparison between this technique…”
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Reconfigurable Three Functional Dimension Single and Dual-Band SDR Front-Ends Using Thin Film BST-Based Varactors by Bouca, Patricia, Figueiredo, Ricardo, Matos, Joao Nuno, Vilarinho, Paula M., Carvalho, Nuno Borges

“…This paper presents a performance evaluation of single and dual-band software-defined radio (SDR) front-ends using commercially available barium strontium…”
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Design and Characterization of an IQ Reflection-Type Vector Modulator for Ka-Band Using PIN Diodes by Arruela, Raul, Marinho, Diogo Marinho, Varum, Tiago, Matos, Joao Nuno

“…Vector modulators (VM) and phase shifters are essential components in phased array antennas with electronic beam steering. This work presents an IQ…”
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Assessing the performance of inkjet-printed coils on paper substrate for WPT by Miranda, Hugo, Machado, Helder, Ferreira, Ana, Joao Nuno Matos, Antao, Romulo, Escadas, Rui

“…In recent years, wireless power transmission (WPT) has received special attention as a very valuable and convenient technology to power a wide range of…”
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Design of a Compact Ka-Band Reflection-Type Vector Modulator Phase Shifter by Arruela, Raul, Varum, Tiago, Matos, Joao Nuno

“…This letter presents a new compact reflection-type vector modulator phase shifter (RTVMPS) for the Ka-band. Unlike conventional passive VMPSs, which use two…”
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Design and Characterization of Novel Barium Strontium Titanate Thick Films for Sub-6 GHz RF Applications by Bouca, Patricia, Figueiredo, Ricardo, Wlodarkiewicz, Anna, Tkach, Alexander, Matos, Joao Nuno, Vilarinho, Paula M., de Carvalho, Nuno Borges

“…In this article, a novel study of the design and characterization of barium strontium titanate (BST) thick films produced by electrophoretic deposition (EPD)…”
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Barium Strontium Titanate Thick Films for Tunable Software-Defined Radio Front-Ends by Bouca, Patricia, Figueiredo, Ricardo, Wlodarkiewicz, Anna, Tkach, Alexander, Matos, Joao Nuno, Vilarinho, Paula M., De Carvalho, Nuno Borges

“…In this paper, the samples preparation, experimental details, and characterization of the Electrophoretic Deposition (EPD) of a thick film Barium Strontium…”
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RF Phase Shifters Design Based on Barium Strontium Titanate Thick and Thin Films by Bouca, Patricia, Pinho, Rui, Wlodarkiewicz, Anna, Tkach, Alexander, Matos, Joao Nuno, Vilarinho, Paula M., de Carvalho, Nuno Borges

“…In this paper, microwave characterizations and phase-shifting applications of electrophoretically deposited thick films and sol-gel derived thin films of…”
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UWB Antenna for Medical Image by Cruz, Vitor, Matos, Joao Nuno, Pinho, Pedro, Pato, M. P. M.

“…Medical imaging based on different technologies is an essential tool in clinical practice, either to provide an accurate initial diagnosis or to monitoring…”
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Motivating first year students for an engineering degree by Fonseca, Pedro, Pedreiras, Paulo, Cabral, Pedro, Matos, Joao Nuno, Cunha, Bernardo, Silva, Filipe

“…When introducing the Bologna model, the University of Aveiro, in Portugal, added a new course to the Electronics and Telecommunications Engineering study plan,…”
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Evaluating WiMAX for vehicular communication applications by Costa, A., Pedreiras, P., Fonseca, J., Matos, J.N., Proenca, H., Gomes, A., Gomes, J.S.

“…Road accidents have a dramatic social and economic impact on the society, a situation that fostered the research of mechanisms for increasing road safety. Many…”
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Wireless power transmission based on resonant electrical coupling by Dias Fernandes, Ricardo, Matos, Joao Nuno, Carvalho, Nuno Borges

“…A novel technique for wirelessly transferring power over non-negligible distances is proposed and discussed in this document. In this technique the transfer of…”
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A Homodyne Low Cost Uplink Receiver for Digital Short Range Communication Systems by Abreu, R., Almeida, N., Matos, J.N., de Carvalho, N.B., Gomes, J.S.

“…In this paper we propose an architecture for a homodyne receiver for dedicated short range communications (DSRQ for road traffic and transport telematics…”
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Recent activities by IEEE Education Society Portugal Chapter by Fonseca, Pedro, Tavares, Vitor Grade, Matos, Joao Nuno, Gericota, Manuel

“…This paper reports on recent activities by the Portugal Chapter of IEEE Education Society. It begins with a reflection on the work of a Chapter and on several…”
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Constructive combination of resonant magnetic coupling and resonant electrical coupling by Dias Fernandes, Ricardo, Matos, Joao Nuno, Borges Carvalho, Nuno

“…In this paper the possibility of combining resonant magnetic coupling and resonant electrical coupling is proposed and discussed. Equivalent circuit models are…”
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