IEEE Ottawa Section: MTT-S / AP-S Chapter presents:
Title: Characterization and Modeling of GaN HEMT Trapping Effects for Microwave Circuit Design
Date: September 2nd, 2020
Time: 11 AM (ET)
Register at: https://events.vtools.ieee.org/m/238482
This talk will review some recent advancements achieved on the characterization and modelling of the trapping effects felt in GaN HEMT transistors, and their impact on microwave circuit design. Because of their nowadays importance, a particular attention will be payed to applications on high power amplifiers for mobile wireless infrastructure and pulsed radar applications.
For that, the talk will start by recollecting the most common model formulations adopted for the various levels of RF engineering, from the device level (physics) to the transistor (circuit) and amplifier (system) level. Starting by the Shockley-Read-Hall capture and emission processes we will be able to understand one of the fundamental signatures of trapping effects, the significantly different charge and discharging time constants, and its impact on power amplifier nonlinear distortion behavior. Then, some widely adopted approaches of the channel current transients’ characterization are addressed and the talk concludes by presenting some illustrative cases of application to RF high power amplifiers.
Speaker: Jose C. Pedro
José C. Pedro received the Diploma, Ph.D., and Habilitation degrees in electronics and telecommunications engineering from the Universidade de Aveiro, Aveiro, Portugal, in 1985, 1993, and 2002, respectively.
He is currently a Full Professor with the Universidade de Aveiro and head of the Aveiro site of the Instituto de Telecomunicações. He has authored 2 books and authored or co-authored more than 200 papers in international journals and symposia. His current research interests include active device modelling and the analysis and design of various nonlinear microwave circuits.
Dr. Pedro was a recipient of various prizes including the 1993 Marconi Young Scientist Award, the 2000 Institution of Electrical Engineers Measurement Prize, the 2015 EuMC Best Paper Microwave Prize, and the Microwave Distinguished Educator Award. He has served the scientific community as a Reviewer and an Editor for several conferences and journals, namely, the IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, for which he was the Editor-in-Chief.
Event Contact Name Ragunath Anbarasu
Event Contact Email: https://wie.ieeeottawa.ca/contact-us/
IEEEXtreme is a worldwide Annual Hackathon, in which teams of IEEE student members participate against each other in a span of 24 hours to solve a set of programming problems. This year IEEEXtreme 14.0 is being held on October 24th. Ragunath Anbarasu, the web master and an active volunteer of IEEE WIE Ottawa has been selected as the Ambassador and Section Lead for the Ottawa region. In this session, he will walk through the IEEEXtreme competition and WIE HACK613, a mock hackathon IEEE WIE Ottawa is organizing as a practice for IEEEXtreme. Register Now! And learn more about the event!
Bio: Ragunath Anbarasu is currently doing his Masters in Electrical and Computer Engineering with Specialization in Data Science at Carleton University. He as been the Web Master of IEEE WIE Ottawa for almost a year and is extremely active in volunteering activities related to IEEE. He has been coordinating with the organizers in hosting this years IEEEXtreme Programming Competition in their respective student branches and supporting Non-IEEE Student Branch Members to get exposure to the Hackathon. He will be extending his help to students looking for support and guidance with information related to IEEEXtreme and connect them to a professional member.