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Sobre
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Sobre

Henrique M. Salgado graduou-se em Física Aplicada (Óptica e Eletrônica) na Universidade do Porto em 1985 e recebeu o grau de doutoramento em Engenharia Eletrónica e Sistemas Informáticos pela University of Wales em 1993. Ingressou no Departamento de Engenharia Elétrica e Informática da Universidade do Porto em 1999 como Professor Auxiliar Convidado e em 2003 tornou-se Professor Associado. Desde 1995 que dirige a área de Óptica e Eletrónica do INESC TEC, sendo responsável por vários projetos de investigação nacionais e internacionais (Europeus) e contratos com a indústria . De 1997 a 1999, foi Investigador Principal no Department of Electrical and Electronic Engineering of the University College London, Reino Unido e anteriormente Investigador Auxiliar na School of Electronic Engineering and Computer Systems, Bangor, Reino Unido. Ele é o autor e co-autor de enúmeras publicações internacionais no campo das comunicações de fibra óptica e microondas. Os seus atuais interesses de pesquisa incluem: tecnologia de rádio sobre fibra e fotónica de microondas, equalização digital em sistemas ópticos coerentes, redes totalmente ópticas, modelação de não-linearidades e projeto de antenas compactas multibanda. Ele é membro da Photonics Society e Communications Society do IEEE.

Tópicos
de interesse
Detalhes

Detalhes

021
Publicações

2019

Resonant tunneling diode photodetectors for optical communications

Autores
Watson, S; Zhang, WK; Tavares, J; Figueiredo, J; Cantu, H; Wang, J; Wasige, E; Salgado, H; Pessoa, L; Kelly, A;

Publicação
Microwave and Optical Technology Letters

Abstract
Optical modulation characteristics of resonant tunneling diode photodetectors (RTD-PD) are investigated. Intensity modulated light excites the RTD-PDs to conduct data experiments. Simple and complex data patterns are used with results showing data rates up to 80 and 200 Mbit/s, respectively. This is the first demonstration of complex modulation using resonant tunneling diodes. © 2019 The Authors. Microwave and Optical Technology Letters published by Wiley Periodicals, Inc.

2019

Optical direct intensity modulation of a 79GHz resonant tunneling diode-photodetector oscillator

Autores
Zhang, WK; Watson, S; Figueiredo, J; Wang, J; Cantu, HI; Tavares, J; Pessoa, L; Al Khalidi, A; Salgado, H; Wasige, E; Kelly, AE;

Publicação
Optics Express

Abstract

2019

Meander-Line Monopole Antenna With Compact Ground Plane for a Bluetooth System-in-Package

Autores
Santos, HM; Pinho, P; Silva, RP; Pinheiro, M; Salgado, HM;

Publicação
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS

Abstract
In this letter, a packaged compact meander-line monopole antenna for Bluetooth communications, manufactured in low-density fan-out technology, is presented. A combined size for the antenna and ground plane of 0.1 lambda(0) x 0.06 lambda(0) x 0.008 lambda(0) is obtained. Such small antennas are usually designed considering their connection to an evaluation board with a large ground plane, which improves their gain and bandwidth, but in this letter, the antenna is designed so it can work standalone without any further connection to printed circuit boards. The challenge of designing such a compact antenna is surpassed by performing a detailed modeling of the radiating meander-line element altogether with its finite ground plane, a tuning inductor, and an inductive coupling feed. The antenna model is developed in Ansys HFSS using the finite element method, which is later validated experimentally. Measurements of the return loss radiation pattern are carried out, and final results show a -6 dB bandwidth of approximately 110 MHz and a gain of -8.7 dBi, at 2.42 GHz.

2018

Experimental Evaluation of Resonant Tunnelling Diode Oscillators Employing Advanced Modulation Formats

Autores
Tavares, JS; Pessoa, LM; Salgado, HM;

Publicação
International Conference on Transparent Optical Networks

Abstract
The performance of Resonant Tunnelling Diode (RTD) oscillators with an optical window is evaluated experimentally, in the transmission of advanced modulation formats using electrical and optical modulation, for the first time. Additionally, the impact of phase noise in the transmission performance is also assessed. © 2018 IEEE.

2018

Elliptical Monopole Antenna on InP Substrate for Sub-THz RTD-based Oscillators

Autores
Santos, HM; Pessoa, LM; Salgado, HM; Pinho, P;

Publicação
2018 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING

Abstract
The high permittivity of InP substrates has been a limiting factor for the bandwidth and efficiency of antennas fabricated in this material. In this manuscript we propose an elliptical monopole, monolithically fabricated in InP, fed by a CPW line. The suggested topology was simulated using HFSS finite element method. Input reflection coefficient measurements were performed on the monopole to validate the proposed antenna. Simulated and measured -10 dB bandwidths of 27 and 24 GHz were obtained, respectively. The peak simulated efficiency and realized gain were 95.37% and 4.6 dBi.

Teses
supervisionadas

2017

Implementação em FPGA de um conversor HDMI para transmissão em série de alta velocidade

Autor
Ana Marisa Oliveira Barbosa

Instituição
UP-FEUP

2017

Projeto de tags RFID sem chip baseadas em codificação de impedância

Autor
Erick Delgado Lima

Instituição
UP-FEUP

2016

Underwater Wireless Power Transfer

Autor
Hugo Miguel Guedes Pereira dos Santos

Instituição
UP-FEUP

2016

Sistema de comunicações óticas sem fios para estação de acostagem submarina

Autor
José Pedro Ferreira Perdiz

Instituição
UP-FEUP

2016

Projeto de antenas para comunicações RF subaquáticas

Autor
Sofia Isabel Silva Inácio

Instituição
UP-FEUP