Events

Jul
9
Thu
Josephson Arbitrary Waveform Synthesizer as a Quantum Standard of Voltage and Current Harmonics
Jul 9 @ 18:30 – 19:30

Title: Josephson Arbitrary Waveform Synthesizer as a Quantum Standard of Voltage and Current Harmonics

Speaker: Dr. Dimitrios Georgakopoulos, Senior Research Scientist, National Measurement Institute, Sydney, Australia

Date/Time: Thursday, July 09, 2020, 6:30 pm – 7:30 p.m. EDT

Abstract: Josephson arbitrary waveform synthesizers (JAWS) are becoming a viable technology for national metrology institutes and industry to establish quantum standards of direct and alternating voltage. At the National Measurement Institute of Australia (NMIA) we have extended the application of the JAWS to provide a standard of both the magnitude and the phase of harmonics in a distorted waveform. Harmonic analysis is critical in a number of industrial applications such as electric power systems, power electronics, characterization of systems and materials and acoustics and vibration. At present, in the calibrations of power analyzers, the traceability of the magnitude of the harmonics is based on ac-dc transfer measurements. However, there is a gap in the traceability of the phase of the harmonics relative to the fundamental. The NMIA calibration system uses a JAWS chip from the National Institute of Standards and Technology (NIST), USA, a precision inductive voltage divider and a set of current shunts designed and manufactured by NMIA. For distorted waveforms with harmonic magnitudes from 5% to 40% of the fundamental, the calibration system can measure odd harmonics up to the 39th with magnitude uncertainties better than 0.001 % of the fundamental for voltage (from 0.01 V to 240 V) and current (from 0.005 A to 20 A) waveforms. The best phase uncertainties range from 0.001° to 0.010° (k = 2.0), depending on the harmonic number and harmonic magnitude. We anticipate that the ability of the JAWS to generate distorted waveforms with the lowest possible uncertainty in the magnitude, and phase spectra will make it a unique tool for low-frequency spectrum analysis.

Speaker’s Bio: Dimitrios Georgakopoulos (IEEE AM’11–M’12–SM’12) was born in Athens, Greece, in 1972. He received his B.Eng. degree in electrical engineering from the Technological Educational Institution of Piraeus, Egaleo, Greece, in 1996; his M.Sc. degree in electronic instrumentation systems from the University of Manchester, Manchester, UK, in 1999; and Ph.D. in electrical engineering and electronics from the University of Manchester Institute of Science and Technology, Manchester, UK, in 2002. From 2002 to 2007, he worked as a research scientist at the National Physical Laboratory, UK. In 2007, he joined the National Measurement Institute, Australia, as a research scientist, where he has been working on the development of quantum voltage standards and low frequency electromagnetic compatibility (EMC) standards. Dr Georgakopoulos is an Associate Editor of the IEEE Transactions on Instrumentation and Measurement, member of the IEEE IMS Measurements in Power Systems Committee (TC‑39), member of the NATA Accreditation Advisory Committee for Calibrations, and member of the American Association for the Advancement of Science (AAAS), USA.

Admission: Free, but registration is required at https://events.vtools.ieee.org/m/233847.For any additional information, please contact by e-mail: branislav@ieee.org or ajit.pardasani@ieee.org.

Sep
2
Wed
Characterization and Modeling of GaN HEMT Trapping Effects for Microwave Circuit Design
Sep 2 @ 11:00 – 12:00

 

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.

Sep
16
Wed
A Brief Introduction to IEEEXtreme and WIE HACK613
Sep 16 @ 17:00 – 18:00
A Brief Introduction to IEEEXtreme and WIE HACK613

Venue: Online

Registration: https://www.eventbrite.ca/e/a-brief-introduction-to-ieeextreme-and-wie-hack613-tickets-119203981317

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.

Dec
2
Wed
Enviropreneurship: Bridging the Gap between Innovation and Function
Dec 2 @ 13:00 – 14:00
Enviropreneurship: Bridging the Gap between Innovation and Function

About this Event

Environmental Entrepreneurship: Bridging Gap between Innovation and Function

Abstract:

Environmental challenges of the current century are systemic threats
to the fabric of our civilization. In this context, environmental
entrepreneurship has emerged as a key mitigation concept that combines
economic and environmental dimensions by leveraging state-of-the-art
technology innovations. Seeing entrepreneurship through the lens of
engineering innovation is crucial to produce actionable theory for
sustainable technology. But what are the environmental entrepreneurship
elements, challenges, and success factors? How can researchers,
technology innovators, and entrepreneurs connect to this emerging field?

This seminar introduces environmental entrepreneurship as the process
of discovering, evaluating, and exploiting market forces that allow to
have effective and fast business cases in environmentally-relevant
markets. The seminar will also discuss views on bridging academic
innovation and technology productization to deliver pragmatic solutions
to environmental challenges of the planet.

Speaker Biography

Dr. Mostafa Farrokhabadi is the Senior Director of Technology at
BluWave-ai, an internationally award-winning startup offering
data-driven control and optimization solutions for smart grids. He has
10 years of experience in designing mission-critical grid solutions for
industry and academia, including technical leadership of a $6M
international consortium in Electric Grid Modernization, and Smart Grid
projects with Hatch and Canadian Solar. Mostafa has authored/co-authored
several high-impact technical papers and patents on intelligent control
and optimization of renewable-penetrated grids. Mostafa obtained his
Ph.D. in Electrical and Computer Engineering from the University of
Waterloo. He has also studied and performed research in Sweden at KTH
and Germany at KIT. Mostafa has received multiple business, research,
and teaching awards, including the prestigious University of Waterloo
Doctoral Thesis Completion Award and Ottawa’s Forty Under 40. Currently,
he serves as an Associate Editor of the IEEE Transactions on Smart Grid
and IEEE DataPort, and Secretary of IEEE Ottawa Section.

Dec
17
Thu
IEEE Canada Technology Leadership Webinar
Dec 17 @ 14:00 – 15:00

 

IEEE Canada Technology Leadership Monthly Webinar

Speaker: Alan R. Emery, Founder, The Stable Climate Group

Topic: Net Zero 2050? Canada’s Options in a Human-Caused Hot World

Registration Link: https://events.vtools.ieee.org/m/249205

Flyer/PDF: The-2020-IEEE-Canada-Technology-Leadership-Webinar-Series-VII

Summary

The sources of human-caused global warming will be presented briefly followed by overwhelming evidence that global warming is real and dangerous.  The speaker will position Canada in a global hot world context. Next, a synopsis of the scale required to get to net zero 2050 and the psychology of global fossil fuel “addiction” will be discussed.   A broad series of what could be excellent options for an innovative future Canada to lead the world by example with a focus on engineering opportunities combined with social and economic requirements will be outlined. Finally, the more probable trajectory for Canada and the world given the current Canadian and world governance in a predatory capitalistic world will be presented.  Even in this dangerous future probability, Canada has many favourable options, if it plans carefully.

Biography

Alan received his BSc. from the University of Toronto; MSc. from McGill University; and PhD from Cornell University and University of Miami.  His scientific specialty is ecology and evolution with a focus on marine sciences. He pioneered in direct observation
underwater at night on coral reefs and in fresh water. He was among the first to dive under the ice in the Arctic. He has led expeditions to the Arctic, Atlantic, Pacific and Indian Oceans. He was a research scientist with the Fisheries Research Board of Canada, the Ministry of Natural Resources in Ontario, professor at the University of Toronto, Curator and Sciences Coordinator at the Royal Ontario Museum, President of the Canadian Museum of Nature, and has been the governor, president, or director of many scientific organizations. When his brother fell terminally ill, Alan brought his engineering company back to a profitable position to be sold by his brother’s family.

He has published nearly 100 scientific, technical, and popular articles and books spanning subjects from marine biology to the management of academic organizations. He has appeared on hundreds of radio and television interviews and has been the subject of, technical advisor for, or written over 150 television shows for CTV, Discovery, and the CBC.

As part of his work with indigenous people, he prepared policy papers for Canada, the World Bank and the UN. In addition, he has worked as a consultant with the Canadian Nuclear Waste Management Organization almost since its inception.

Recently, Alan has moved his primary attention from global biodiversity loss to the solution of human-caused global warming. In 2015, he initiated and is now leading an international group of scientists and engineers to help solve the global warming problems: The Stable Climate Group.

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