Dr. Sam Lemey, Ghent University.
Research Disciplines : Electromagnetism and antenna technology High frequency circuits
Abstract: The Internet of Things (IoT) and Industry 4.0 will bring a massive change to the way we live and work in the near future. Fueled by the adaption of novel key-enabling technologies, common objects, tools, machinery, and even garments, will be augmented with sensing, processing, and wireless communication/localization capabilities. The pervasive integration of such a smart common objects into the internet will improve our awareness of our surroundings and physical conditions, thereby helping us to make better decisions. However, the far-reaching integration scenarios, the ever-increasing demand for higher data rates and the harsh and hostile IoT/Industry 4.0 environment make antenna design for IoT-applications substantially more challenging.
In this seminar, I will discuss a new class of high-performance low-cost antenna systems for the 5G wireless communication protocol and the Internet of Things. In particular, the substrate integrated waveguide technology is adopted to implement cavity-backed slot antenna topologies in conventional and unconventional substrate materials. Owing to their extreme antenna-platform isolation, very stable antenna characteristics are obtained in challenging deployment conditions and with active transceiver and energy harvesting electronics directly integrated on the antenna platform. In addition, it will be shown that broadband operation can be obtained by diverse bandwidth enhancement techniques, whereas miniaturization can be obtained by relying on mode symmetries. Their potential will be demonstrated by presenting several broadband designs for smart floors, on-body applications and centimeter-precision localization applications. The seminar will be concluded by discussing the co-design procedure of a passive remote antenna unit for RoF communication and the realization of a compact, wideband and cost-effective mmWave antenna.
Short bio: Sam Lemey [S’14–M’16] (Sam.Lemey@ugent.be) received the M.Sc. degree in electronic engineering from Howest, University College West Flanders, Kortrijk, Belgium, in 2012 and the Ph.D. degree in electrical engineering from Ghent University, Ghent, Belgium, in 2016. He is currently working as a Post-Doctoral researcher at the Electromagnetics Group in the Department of Information Technology (INTEC) at Ghent University. His research focuses on robust antenna systems for wearable applications, energy-harvesting techniques for wireless nodes, active antenna design for the Internet of Things and 5G applications, IR-UWB antenna systems for centimeter-precision localization, novel techniques to implement substrate integrated waveguide structures in innovative materials, and full-wave/circuit co-optimization frameworks to realize active antenna systems.