IEEE Toronto Section


Archive for the ‘Electromagnetics & Radiation’ Category

Opportunities, Challenges and Implementations of Silicon Integration and Packaging in mmWave Radar and Communication Applications

Friday, July 26th, 2019

Friday August 9th, 2019 at 10:00 a.m. Dr. Xiaoxiong Gu, Distinguished Lecturer of the IEEE EMC Society, will be presenting “Opportunities, Challenges and Implementations of Silicon Integration and Packaging in mmWave Radar and Communication Applications”.

Day & Time: Friday August 9th, 2019
10:00 a.m. ‐ 11:00 a.m.

Speaker: Dr. Xiaoxiong Gu (IBM)
Distinguished Lecturer of the IEEE EMC Society

Organizers: IEEE Toronto Electromagnetics & Radiation Chapter, IEEE EMC Society

Location: Room BA 1200
Bahen Centre for Information Technology
40 St George St, Toronto, ON M5S 2E4

Contact: Prof. Piero Triverio

Abstract: Co-design and integration of RFIC, package, and antennas are critical to enable multiple aspects of 5G communications (backhaul, last mile, mobile access) and are particularly challenging at mmWave frequencies. This talk will cover various important aspects of mmWave antenna module packaging and integration for base station, backhaul, and user equipment applications, respectively. We will first present a historical perspective on Si-based mmWave modules and approaches for antenna and IC integration including trade-offs. We will focus on the challenges, implementation, and characterization of a 28-GHz phased-array module with 64 dual polarized antennas for 5G base station applications. We will then introduce a software-defined phased array radio based on the 28-GHz hardware. The highly re-configurable phased array radio features beam shaping/steering control as well as data TX/RX function control from a single Python-based software interface. Second, we will present a W-band phased-array module with 64-element dual-polarization antennas for radar imaging and backhaul application. The module consists of a multilayer organic chip-carrier package and a 16-element phased-array TX IC or a 32-element RX IC chipset. Third, we will describe a compact, low-power, 60-GHz switched-beam transceiver module suitable for handset integration incorporating 4 antennas that supports both normal and end-fire directions for a wide link spatial coverage.

Biography: Xiaoxiong Gu received the Ph.D. in electrical engineering from the University of Washington, Seattle, USA, in 2006. He joined IBM Research as a Research Staff Member in January 2007. His research activities are focused on 5G radio access technologies, optoelectronic and mm-wave packaging, electrical designs, modeling and characterization of communication, imaging radar and computation systems. He has recently worked on antenna-in-package design and integration for mm-wave imaging and communication systems including Ka-band, V-band and W-band phased-array modules. He has also worked on 3D electrical packaging and signal/power integrity analysis for high-speed I/O subsystems including on-chip and off-chip interconnects. He has been involved in developing novel TSV and interposer technologies for heterogeneous system integration.

Dr. Gu has co-authored over 80 peer-reviewed publications and holds 9 issued patents. He was a co-recipient of IEEE ISSCC 2017 Lewis Winner Award for Outstanding Paper and IEEE JSSC 2017 Best Paper Award (the world’s first reported silicon-based 5G mmWave phased array antenna module operating at 28GHz). He was a co-recipient of the 2017 Pat Goldberg Memorial Award to the best paper in computer science, electrical engineering, and mathematics published by IBM Research. He received an IBM Outstanding Technical Achievement Award in 2016, four IBM Plateau Invention Awards in 2012 ~ 2016, the IEEE EMC Symposium Best Paper Award in 2013, two SRC Mahboob Khan Outstanding Industry Liaison Awards in 2012 and 2014, the Best Conference Paper Award at IEEE EPEPS in 2011, IEC DesignCon Paper Awards in 2008 and 2010, the Best Interactive Session Paper Award at IEEE DATE in 2008, and the Best Session Paper Award at IEEE ECTC in 2007. Dr. Gu is the co-chair of Professional Interest Community (PIC) on Computer System Designs at IBM. He is a Senior Member of IEEE and has been serving on different program committees for MTT-S, EPEPS, ECTC, EDAPS and DesignCon. Dr. Gu was the General Chair of IEEE EPEPS 2018 in San Jose, CA. He is also a Distinguished Lecturer for IEEE EMC Society in 2019-2020.

Differential Microstrip Antennas

Friday, August 17th, 2018

Thursday, August 23rd 2018, Prof. Yueping Zhang at Nanyang Technological University, Singapore, is presenting an Electromagnetics and Radiation IEEE Distinguished Lecture “Differential Microstrip Antennas”.

Day & Time: Thursday August 23rd, 2018
3:00 p.m. ‐ 4:00 p.m.

Speaker: Prof. Yueping Zhang at Nanyang Technological University, Singapore

Organizers: IEEE Toronto Electromagnetics & Radiation Chapter

Location: Bahen Center of Information Technology, Room BA1230
40 St George Street
Toronto, Ontario
Canada M5S 2E4

Contact: Costas Sarris

Abstract: The earliest antennas implemented by Hertz for the discovery of radio waves were dipole and loop. They are differential. It was Marconi who introduced the ground concept into antennas and realized single-ended monopole antennas for wireless transmission. Compared with differential antennas, single-ended antennas have smaller size and therefore single-ended antennas have dominated in antenna designs. Compared with single-ended circuits, differential circuits permit higher linearity and lower offset and make them immune to power supply variations, temperature changes, and substrate noise. As a result, differential circuits have dominated in integrated circuit designs. Differential circuits call for differential antennas. This is particularly essential in highly-integrated system-on-chip and system-in-package solutions where the system ground plane may be much smaller than one free-space wavelength. Differential antennas perfectly marry (match) with differential circuits. No lossy balanced/unbalanced conversion circuit is needed. As a result, the receiver noise performance and transmitter power efficiency are improved.

In this lecture, I present differential microstrip antennas with an emphasis on the comparison of them with single-ended counterparts. First, I extend the well-known cavity model for the single-ended microstrip antennas to analyze the input impedance and radiation characteristics of differential microstrip antennas. Then I examine the design formulas to determine the patch dimensions and the location of the feed point for single-ended microstrip antennas to design differential microstrip antennas. It is shown that the patch length can still be designed using the formulas for the required resonant frequency but the patch width calculated by the formula usually needs to be widen to ensure the excitation of the fundamental mode using the probe feeds. The condition that links the patch width, the locations of the probe feeds, and the excitation of the fundamental mode is the electrical separation, which is a new and unique concept specifically conceived for the design of differential microstrip antennas. Next, I turn to the miniaturization of differential microstrip antennas and discuss some latest achievements. Finally, I summarize the lecture and provide recommendations.

Biography: ZHANG Yueping is a full Professor of Electronic Engineering with the School of Electrical and Electronic Engineering at Nanyang Technological University, Singapore, a Distinguished Lecturer of the IEEE Antennas and Propagation Society (IEEE AP-S), and a Fellow of IEEE.

Prof. Zhang was a Member of the Field Award Committee of the IEEE AP-S (2015-2017), an Associate Editor of the IEEE Transactions on Antennas and Propagation (2010-2016), and the Chair of the IEEE Singapore MTT/AP joint Chapter (2012). Prof. Zhang was selected by the Recruitment Program of Global Experts of China as a Qianren Scholar at Shanghai Jiao Tong University (2012). He was awarded a William Mong Visiting Fellowship (2005) and appointed as a Visiting Professor (2014) by the University of Hong Kong.

Prof. Zhang has published numerous papers, including two invited papers in the Proceedings of the IEEE and one invited paper in the IEEE Transactions on Antennas and Propagation. He holds 7 US patents. He received the Best Paper Award from the 2nd IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing, July 18–20, 2000, Bournemouth, U.K., the Best Paper Prize from the 3rd IEEE International Workshop on Antenna Technology, March 21–23, 2007, Cambridge, U.K., and the Best Paper Award from the 10th IEEE Global Symposium on Millimeter-Waves, May 24–26, 2017, Hong Kong, China. He received the prestigious IEEE AP-S Sergei A. Schelkunoff Prize Paper Award in 2012.

Prof. Zhang has made pioneering and significant contributions to the development of the antenna-in-package (AiP) technology that has been widely adopted by chipmakers for millimeter-wave applications. His current research interests include the development of antenna-on-chip (AoC) technology and characterization of chip-scale propagation channels at terahertz for wireless chip area network (WCAN).

EMC and Frequency Selective Surfaces for 5G Communications

Wednesday, July 11th, 2018

Tuesday, July 17th at 3:00 p.m., Professor Erping Li, Zhejiang University, China, will be presenting “EMC and Frequency Selective Surfaces for 5G Communications”.

Day & Time: Tuesday, July 17, 2018
3:00 p.m. ‐ 4:00 p.m.

Speaker: Professor Erping Li, Zhejiang University, China

Location: 40 St George Street
Toronto, Ontario
Canada M5S 2E4
Building: Bahen Centre for Information Technology
Room Number: BA1240

Contact: Costas Sarris

Organizer: IEEE Toronto Electromagnetics & Radiation Chapter

Abstract: The spectrum in the range of 28 GHz is sued for adoption of 5G wireless communication. The novel wideband frequency selective surfaces (FSSs) are explored for the extensive applications in 5G communication such as antenna reflectors, radomes to system level electromagnetic structures. This presentation will touch on a novel broadband bandpass frequency selective surface (FSS) designed for fifth generation (5G) communication. The new structure design employs the vertical vias in the two-dimensional (2-D) periodic arrays, which demonstrates that such a single 2.5-dimensional (2.5-D) periodic layer of via_based structure produces a highly stable angular response up to 75 degrees for both the TE and TM incident angles. The proposed FSS is a good candidate for 5G communication applications.

Biography: Erping Li holds the appointment of Changjiang-Qianren Distinguished Professor in Zhejiang University, China, Dean for Zhejiang University-UIUC Institute. Prior that he worked for Singapore A*STAR Institute of High Performance Computing as a Principal Scientist, Director of Photonic Department, Associate Professor at National University of Singapore and adjunct Professor at Singapore Nanyang Technological University. Dr Li’s research interests include advanced computational electromagnetics, electromagnetics in micro-nanoelectronics, electromagnetics in 5G communication, nano-plasmonics for microwave and mmwave. He authored or co-authored over 400 papers published in the referred international journals and conferences, authored two books published at John-Wiley Press(2012) and Cambridge University Press(2014). Dr Li is a Fellow of IEEE, and a Fellow of MITElectromagnetics Academy, USA. He received numerous international awards including the IEEE EMC Richard Stoddard Award in 2015, IEEE EMC Technical Achievement Award, and Changjiang Chair Professorship Award from the Ministry of Education in China. He has served as General Chair and Technical Program Chair for more than 10 prestigious international conferences and delivered over 80 invited talks and plenary speeches at various international conferences and forums.

RF in Medicine: Current Status and Challenges of Antennas and Wireless Power

Saturday, May 5th, 2018

Thursday, May 31st at 4:00 p.m., Dr Yongxin Guo, National University of Singapore, Singapore, will be presenting a distinguished lecture: “RF in Medicine: Current Status and Challenges of Antennas and Wireless Power”.

Day & Time: Thursday, May 31, 2018
4:00 p.m. ‐ 5:00 p.m.

Speaker: Dr Yongxin Guo
National University of Singapore, Singapore

Location: Room Number: BA 1180
Bahen Centre for Information Technology
40 St George St, Toronto, ON M5S 2E4

Contact: George V. Eleftheriades

Organizer: IEEE Toronto Electromagnetics & Radiation Chapter

Abstract: Wireless power and data telemetry technologies for biomedical and healthcare applications have received a lot of attention recently. Numerous applications in medical diagnostics and therapeutics ranging from cardiac pacemakers to emerging devices in visual prosthesis, brain computer interfaces and body area networks have spurred electronic engineers to propose new wireless medical devices. In the meantime, the ageing population poses many challenges to healthcare systems, especially on chronic illness management. In this talk, I would mainly cover our recent research progress on wearable/implantable antennas and wireless power for biomedical applications. A few related ongoing biomedical projects for on-body and in-body applications will be addressed. In addition, I would also briefly introduce my other related research activities.

Biography: Yong-Xin Guo received his Ph.D. degree from City University of Hong Kong in 2001. From September 2001 to January 2009, he was with the Institute for Infocomm Research, Singapore, as a Research Scientist. He joined the Department of Electrical and Computer Engineering, National University of Singapore (NUS), as an Assistant Professor in February 2009 and was promoted to a tenured Associate Professor in Jan 2013. He has authored or co-authored 206 international journal papers and ~200 international conference papers. Thus far, his publications have been cited more than 6200 times and the H-index is 44 (source: Google Scholar). He holds 8 granted/filed Patents in U.S. or China. His current research interests include antennas for wireless communications and biomedical applications, wireless power for biomedical and IoTs, and MMIC modelling and design. He has graduated 12 PhD students at NUS.

Dr Guo was the General Chair/Co-Chair for AWPT 2017, ACES-China 2017, IEEE IMWS-AMP 2015 and IEEE IMWS-Bio 2013. He served as a Technical Program Committee (TPC) Co-Chair for IEEE IMWS-AMP 2017 and RFIT2009. He is serving as Associate Editors for IEEE Journal of Electromagnetics, RF and Microwave in Medicine and Biology, IEEE Antennas and Wireless Propagation Letters, and Electronics Letters. He was a recipient of the Young Investigator Award 2009, National University of Singapore. He received 2013 Raj Mittra Travel Grant Senior Researcher Award. He is an IEEE Fellow.

Shielded Enclosure Metrics

Monday, April 9th, 2018

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


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.

An Introduction to Free-Field Measurements of Wireless Devices in Reverberation Chambers

Friday, August 25th, 2017

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.

Innovative Radio Systems and Antennas for Space Telecommunication Applications

Friday, February 3rd, 2017

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.

Advanced Antenna Systems for 21st Century Satellite Communication Payloads

Sunday, July 10th, 2016

September 12, 2016 at 4:00 p.m. Dr. Sudhakar Rao, IEEE Fellow and Technical Fellow of Northrop Grumman, will be presenting “Advanced Antenna Systems for 21st Century Satellite Communication Payloads”.

Speaker: Dr. Sudhakar Rao
IEEE Fellow
Technical Fellow, Engineering & Global Products Division
Northrop Grumman Aerospace Systems

Day & Time: Monday, September 12, 2016
4:00 p.m. – 5:00 p.m.

Location: Room BA 1220
40 St. George Street, Toronto, M5S 2E4

Abstract: 21st century has so far seen several new satellite services such as local-channel broadcast for direct broadcast satellite service (DBS), high capacity K/Ka-band personal communication satellite (PCS) service, hosted payloads, mobile satellite services using very large deployable reflectors, high power hybrid satellites etc. All these satellite services are driven by the operators need to reduce the cost of satellite and pack more capability into the satellite. Antenna sub-system design, mechanical packaging on the spacecraft, and RF performance become very critical for these satellites. This talk will cover recent developments in the areas of antenna systems for FSS, BSS, PCS, & MSS satellite communications. System requirements that drive the antenna designs will be presented initially with brief introduction to satellite communications. Reflector and array antenna designs will be covered in this talk.

Advanced antenna system designs for contoured beams, multiple beams, and reconfigurable beams will be presented. Contoured beam antennas using dual-gridded reflectors, shaped single reflectors, and shaped Gregorian reflectors will discussed. Multiple beam antenna (MBA) concepts and their advantages compared to conventional contoured beams will be introduced.

Various designs of the MBA for DBS, PCS, and MSS services will be discussed along with practical examples. Recent advances in feed technology and reflector technology will be addressed and few examples. Advances in multi-band antennas covering multiple bands will be presented. Topics such as antenna designs for high capacity satellites, large deployable mesh reflector designs, low PIM designs, and power handling issues will be included. Advanced high power test methods for the satellite payloads will be addressed. Brief introductions to TT&C antennas, passive inter modulation products (PIM) and multipaction for satellite payloads will be given. Future trends in the satellite antennas will be discussed. At the end of this talk, engineers will be exposed to typical requirements, designs, hardware, software, and test methods for various satellite antennas.

Biography: Sudhakar K. Rao received B.Tech, M.Tech, and Ph.D degrees in electronics & communications engineering from REC Warangal, IIT Kharagpur, and IIT Madras in 1974, 1976, and 1979 respectively. During the period 1976-1977 he worked as a Technical officer at ECIL Hyderabad and then as a Senior Scientist at the Electronics and Radar development Establishment, Bangalore on phased array antennas for airborne applications during 1980-1981. He worked as a post-doctoral fellow at University of Trondheim, Norway and then as a research associate at University of Manitoba during 1981-1983. During1983-1996, he worked at Spar Aerospace Limited (now MDA), Montreal, Canada, as a Staff Scientist and developed advanced antennas for several satellite communications. From 1996-2003 he worked as Chief Scientist/Technical Fellow at Hughes/Boeing Satellite Systems and developed multiple beam antennas and reconfigurable beam payloads for commercial and military applications. During the period 2003-2010, he worked as a Corporate Senior Fellow at Lockheed Martin Space Systems and developed antenna payloads for fixed satellite, broadcast satellite, and personal communication satellite services. He invented novel high power TVAC test methods for satellite payloads using “pick-up horn absorber loads” that have about 8 times cost and schedule savings which has become a standard method at Lockheed Martin and used successfully on more than 10 satellite payloads. He is currently a Technical Fellow at Northrop Grumman Aerospace Systems, Redondo Beach, CA working on advanced antenna systems for space & aircraft applications.

Dr. Rao developed antenna payloads for more than 70 satellites including first mobile satellite M-Sat, first Direct Broadcast Satellite with local channels (DirecTV-4S), and first multiple beam antenna at Ka-band for personal communications satellites. His work on development of radiation templates for complex radiation patterns of satellite antennas for interference analysis was adopted and recommended by the International Telecommunication Union (ITU)/CCIR in 1992 as the world-wide standard for satellite manufacturers and operators. He authored over 170 technical papers and has 44 U.S patents. He authored and co-edited three text book volumes on “Handbook of Reflector Antennas and Feed Systems” that are published in June 2013 by the Artech House.

Dr. Rao became an IEEE Fellow in 2006 and a Fellow of IETE in 2009. He received several awards and recognitions that include 2002 Boeing’s Special Invention Award for series of patents on satellite antenna payloads, 2003 Boeings’ technical achievement award, Lockheed Martin’s Inventor of Technology award in 2005 & 2007, IEEE Benjamin Franklin Key Award in 2006, Delaware Valley Engineer of the Year in 2008, and Asian American Engineer of the year award in 2008. He received IEEE Judith Resnik Technical Field Award in 2009 for pioneering work in aerospace engineering. He is the recipient of the IETE’s 2015 Prof. S.N. Mitra Memorial award. He received best reviewer recognition by the IEEE Transactions on Antennas & Propagation Journal for the years 2014 and 2015. Dr. Rao is appointed as the Distinguished Lecturer by the IEEE APS for a three year period (2014-2016). He was the Chair for the IEEE APS “Industry Initiatives Committee” during 2010-2015, Associate Editor for the IEEE Antennas & Propagation Magazine’s “Antenna Applications Corner”, Associate Editor for the IEEE Transactions on Antennas & Propagation, Special Session Organizer/Chair for the last six IEEE APS/URSI Symposia, Technical Program Committee member for IEEE APS/URSI Symposia from last 10 years, and reviewer for the IEEE AP Transactions, WPL, IEE etc. Dr. Rao mentored more than 50 engineers in his career who are now in key technical and management positions throughout the aerospace industry.

Imaging Tissue and Treating Cancer with Microwaves

Friday, January 8th, 2016

Thursday January 28, 2016 at 3:00 p.m. Professor Susan Hagness, University of Wisconsin-Madison, will be presenting “Imaging Tissue and Treating Cancer with Microwaves”.

Speaker: Professor Susan Hagness
University of Wisconsin-Madison

Day & Time: Thursday, January 28, 2016
3:00 p.m.

Location: Sandford Fleming Building, 10 King’s College Rd
Room SF1105

Organizer: IEEE Toronto Electromagnetics and Radiation Chapter

Contact: Costas D. Sarris

Abstract: The endogenous (and possibly exogenously influenced) dielectric properties of tissue at microwave frequencies vary across different tissue types and physiological states. These properties may be exploited to differentiate tissues via low-power microwave imaging and to selectively heat diseased tissue at higher power levels. This presentation will highlight recent theoretical and experimental advances in low-cost microwave theranostics – that is, diagnostic and therapeutic microwave-based technologies – with an emphasis on breast imaging and targeted cancer treatment. On the diagnostic side, 3-D quantitative microwave imaging technology has the potential to address several important clinical needs in breast imaging, including evaluating breast density as part of a patient’s individualized risk assessment, screening women who are at higher risk for cancer, and monitoring changes in breast tissue in response to prevention and treatment protocols. On the therapeutic side, minimally invasive microwave ablation using miniaturized antennas as interstitial heating probes is emerging as a less invasive alternative to surgical resection and more effective and versatile alternative to conventional thermoablative techniques for the treatment of primary tumors.

Biography: Susan C. Hagness received the B.S. degree with highest honors and the Ph.D. degree in electrical engineering from Northwestern University in 1993 and 1998, respectively. Since 1998, she has been with the Department of Electrical and Computer Engineering at the University of Wisconsin-Madison, where she currently holds the title of Philip D. Reed Professor and serves as the Associate Dean for Research and Graduate Affairs in the College of Engineering. She is also a Faculty Affiliate of the Department of Biomedical Engineering and a member of the UW Carbone Comprehensive Cancer Center. Dr. Hagness was the recipient of the Presidential Early Career Award for Scientists and Engineers (PECASE) presented by the U.S. White House in 2000. In 2002, she was named one of the 100 top young innovators in science and engineering in the world by the MIT Technology Review magazine. She is also the recipient of the UW-Madison Emil Steiger Distinguished Teaching Award (2003), the IEEE Engineering in Medicine and Biology Society Early Career Achievement Award (2004), the URSI Isaac Koga Gold Medal (2005), the IEEE Transactions on Biomedical Engineering Outstanding Paper Award (2007), the IEEE Education Society Mac E. Van Valkenburg Early Career Teaching Award (2007), the UW System Alliant Energy Underkofler Excellence in Teaching Award (2009), the Physics in Medicine and Biology Citations Prize (2011), the UW-Madison Kellett Mid- Career Award (2011), and the UW-Madison College of Engineering Benjamin Smith Reynolds Award for Excellence in Teaching Engineers (2014). She was elected Fellow of the IEEE in 2009. She has held numerous leadership positions within the IEEE Antennas and Propagation Society (AP-S) and the United States National Committee (USNC) of the International Union of Radio Science (URSI). She was the Technical Program Chair of the 2012 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting in Chicago, IL, and most recently completed a term as Chair of the IEEE AP-S Fellows Evaluation Committee.

The Wonderful World of Nonlinearity: Modeling and Characterization of RF and Microwave Circuits

Wednesday, January 6th, 2016

Monday January 18, 2016 at 5:00 p.m. Jose C. Pedro, Professor at the University of Aveiro, will be presenting a Distinguished Microwave Lecture, on “The Wonderful World of Nonlinearity: Modeling and Characterization of RF and Microwave Circuits”.

Speaker: Jose C. Pedro
University of Aveiro

Day & Time: Monday, January 18, 2016
5:00 p.m. – 6:00 p.m.

Location: Room GB405, Galbraith Building
35 St. George Street, Toronto, M5S 1A4

Organizer: IEEE Toronto Electromagnetics and Radiation Chapter

Contact: George V. Eleftheriades

Abstract: Despite the many studies that have been undertaken to understand the wonderful world of nonlinearity, most undergraduate electrical engineering programs are still confined to linear analysis and design tools. As a result, the vast majority of microwave designers still cannot profit from the significant technological advancements that have been made in nonlinear circuit simulation, active device modeling and new instrumentation for performance verification. So, they tend to conduct their designs relying on experience, empirical concepts, and many trial and error iterations in the lab.
This talk will reveal the ubiquitous presence of nonlinearity in all RF and microwave circuits and the recent efforts made to understand, model, predict, and measure its diverse manifestations. We aim to bring microwave engineers’ attention to newly available techniques, and attract researchers to pursue further studies on this scientifically exciting topic.
Starting with some elementary properties of nonlinear circuits (like nonlinear signal distortion, harmonic generation, frequency conversion and spectral regrowth), we will show that nonlinearity is present in all wireless circuits, either to perform a desired signal operation or as unintentional distortion. In this way, we will show how oscillators, modulators or mixers could not exist without nonlinearity, while power-amplifier designers struggle to get rid of its distortion effects.
After this theoretical overview, we will introduce some recent advancements in nonlinear microwave circuit analysis tools and illustrate different types of models that are currently being used to represent and predict device, circuit, and system performance. Finally, we will focus the talk on the key metrics that are used to characterize nonlinear behavior, as well as newly developed lab instruments and their ability to assess device performance.

Biography: José C. Pedro received the diploma, doctoral and habilitation degrees in electronics and telecommunications engineering, from University of Aveiro, Portugal, in 1985, 1993 and 2002, respectively.
From 1985 to 1993 he was an Assistant Lecturer at University of Aveiro, and a Professor since 1993. Currently he is a Full Professor at the same University, and a Senior Research Scientist at the Institute of Telecommunications.
His main scientific interests include active device modeling and the analysis and design of various nonlinear microwave circuits, in particular, the design of highly linear multi-carrier power amplifiers and mixers. He is the leading author of Intermodulation Distortion in Microwave and Wireless Circuits (Artech House, 2003), has authored or co-authored more than 200 papers in international journals and symposia, and served the IEEE in the Portuguese MTT/AP/ED Joint Chapter, the MTT-11 Technical Committee and as a reviewer and Associate Editor for the MTT Transactions and reviewer for the MTT-IMS and the EuMC.
Prof. Pedro has served his university department as the Coordinator of the Scientific Council and as the Department Head.
Prof. Pedro received the Marconi Young Scientist Award in 1993 and the 2000 Institution of Electrical Engineers (IEE) Measurement Prize. In 2007 he was elected Fellow of the IEEE for his contributions to the nonlinear distortion analysis of microwave devices and circuits. Currently, he is an IEEE MTT-S Distinguished Microwave Lecturer.