Electromagnetics & Radiation

Tuesday, May 15th at 4:00 p.m., Prof. Andy Marvin, IEEE Life Fellow and Fellow of Royal Academy of Engineering, will be presenting “Shielded Enclosure Metrics”. Day & Time: Tuesday, May 15th, 2018 4:00 p.m. ‐ 5:00 p.m. Speaker: Prof. Andy Marvin IEEE Life Fellow, Fellow of Royal Academy of Engineering Professor Emeritus, Department of Electronic Engineering, University of York, York, UK. Location: Room BA2185, Bahen Center of Information Technology 40 St. George Street, Toronto, ON M5S 2E4 Contact: gelefth@ece.utoronto.ca Organizer: IEEE Toronto Electromagnetics & Radiation Chapter Abstract: The lecture describes the author’s research over the past decade investigating better ways of defining and assessing the shielding performance of equipment enclosures. The definition of enclosure Shielding Effectiveness and its limitations are reviewed. Then recent research on the use of surrogate contents to replicate real electronic enclosure contents is described leading to alternative definitions of enclosure shielding performance. Latterly, the work has concentrated on shielding of equipment enclosures in the microwave frequency range. Measurement techniques exploiting the reverberant nature of the enclosures are described. The work has contributed to the recently released IEEE Std 299.1 on the measurement of equipment enclosure shielding. The HUAWEI Corporation has sponsored the research since 2014. Biography: Andy Marvin is Professor Emeritus in the University of York’s Department of Electronic Engineering. He received his BEng, MEng and PhD degrees in Electrical and Electronic Engineering from the University of Sheffield between 1972 and 1979. From 1977 to 1979 he was with the British Aircraft Corporation at Filton, Bristol, UK working on antenna design and EMC. He was appointed to a Lectureship in Electronics at the University of York in the UK in 1979 and promoted to Professor of Applied Electromagnetics in 1995. He retired in December 2017 and was appointed as Professor Emeritus in February 2018. He was appointed as Technical Director of York EMC Services at its founding in 1995. He resigned his directorship when the company was acquired by Eurofins in June 2017. He is a Fellow of the Royal Academy of Engineering and an IEEE Life Fellow. He was Vice-Chairman of the IEEE Std-299 Working Group on Shielding Effectiveness Measurement, and is currently Vice-Chairman of the IEEE EMC Society Standards Advisory and Co-ordination Committee. From 1994 to 2015 he was an Associate Editor of IEEE Transactions on EMC. He was a member of the UK National Measurement System Advisory Panels on Innovation Research and Development and Materials and Modelling from 2008 to 2015. He has contributed lectures on Antennas and on Shielding to the IEEE EMCS Global University and Chaired its Faculty in 2010. His main research interests are EMC measurement and modelling techniques, EMC antennas and electromagnetic shielding measurement and modelling. To date, starting in 1976, he is author over 300 papers. In 1992, he and Dr Stuart Porter invented the Bilog EMC measurement antenna. He is a founder member of the International Steering Committee of EMC Europe conferences, Conference Chair of EMC Europe 2011 (York) and Chair of the EMC Europe International Steering Committee for 2015 – 2018. He was President of the York Society of Engineers (2014/16) and is Chief Flying Instructor at the York Gliding Centre.

Wednesday September 27, 2017 at 4:00 p.m. Dr. Kate A. Remley, leader of the Metrology for Wireless Systems Group at NIST, will be presenting “An Introduction to Free-Field Measurements of Wireless Devices in Reverberation Chambers”. Day & Time: Wednesday September 27, 2017 4:00 p.m. – 5:00 p.m. Speaker: Dr. Kate A. Remley Metrology for Wireless Systems Group at NIST Location: University College 15 King’s College Circle Toronto, Ontario Room: 179 Contact: George V. Eleftheriades Organizers: EM & Radiation Chapter, IEEE Toronto Abstract: When the antenna is integrated into the body of a wireless device, as it is for cell phones and many other portable devices, performance testing is typically done under free-field conditions. In this overview presentation, we will discuss free-field characterization of some key wireless-device parameters by use of reverberation chambers. We will discuss recent research and some of the issues related to the use of these chambers for testing devices that transmit modulated signals. Biography: Kate A. Remley (S’92-M’99-SM’06-F’13) was born in Ann Arbor, MI. She received the Ph.D. degree in Electrical and Computer Engineering from Oregon State University, Corvallis, in 1999. From 1983 to 1992, she was a Broadcast Engineer in Eugene, OR, serving as Chief Engineer of an AM/FM broadcast station from 1989-1991. In 1999, she joined the RF Technology Division of the National Institute of Standards and Technology (NIST), Boulder, CO, as an Electronics Engineer. She is currently the leader of the Metrology for Wireless Systems Group at NIST, where her research activities include development of calibrated measurements for microwave and millimeter-wave wireless systems, characterizing the link between nonlinear circuits and system performance, and developing standardized test methods for RF equipment used by the public-safety community. Dr. Remley was the recipient of the Department of Commerce Bronze and Silver Medals, an ARFTG Best Paper Award, and is a member of the Oregon State University Academy of Distinguished Engineers. She was the Chair of the MTT-11 Technical Committee on Microwave Measurements from 2008 – 2010 and the Editor-in-Chief of IEEE Microwave Magazine from 2009 – 2011, and is the Chair of the MTT Fellow Nominating Committee.

Wednesday February 8, 2017 at 4:00 p.m. Dr. Hervé Legay, Thales Alenia Space, will be presenting “Innovative Radio Systems and Antennas for Space Telecommunication Applications”. Speaker: Dr. Hervé Legay Thales Alenia Space, France Day & Time: Wednesday, February 8th, 2017 4:00 pm Location: BA 1230, Bahen Centre for Information Technology 40 St. George Street, Toronto, ON M5S 2E4 Contact: Sean V. Hum Organizer: IEEE Toronto Electromagnetics & Radiation Chapter Abstract: We stand at the dawn of a new era for the space telecommunication ecosystem, marked by a consistent exponential growth in throughput as well as the irruption of new systems based on constellation of satellites. For these challenges, new models for disruptive innovation are imagined for the future generation of payloads: • Developing new antennas and RF subsystems concepts inspired by optics, or based on metamaterials (composite media with an internal periodic structure that provides specific characteristics such as filtering, phase-shifting, absorbing, etc.) • Integrating of smart and agile RF systems with signal processing capability that exploit mechanically actuated RF components, smart RF surfaces as well as innovative deployment schemes. • Introducing into space cost efficient manufacturing techniques, based on additive and subtractive processes, metallised plastics, thin organic large area electronics, etc. Recent achievements in these innovative concepts developed at Thales Alenia Space will be presented, identifying their perspectives and their limitations. Biography: Hervé Legay was born in 1965. He received the electrical engineering and Ph.D. degrees from the National Institute of Applied Sciences (INSA), Rennes, France, in 1988 and 1991, respectively. For two years, he was a Postdoctoral Fellow with the University of Manitoba, Winnipeg, MB, Canada, where he developed innovating planar antennas. He joined Alcatel Space, Toulouse, France, in 1994, which is now Thales Alenia Space. He initially conducted studies in the areas of telecommunication satellite antennas and antenna processing. He designed the architecture and the antijamming process of the Syracuse 3 active antenna. He is the author of 27 patents. He is currently responsible for the R&T studies on space antennas, director of the joint laboratory MERLIN involving Thales Alenia Space and IETR (Institut d’electronique et de Télécommunication de Rennes). He coordinates the collaborations with academic and research partners. He was appointed Antenna Expert in Thales. Dr. Legay is a co-prize-winner of the 2007 Schelkunoff prize paper award. He received the Gold Thales Awards in 2008, a reward for the best innovations in the group Thales.