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Home > Keynote Speakers

One of the Thought-leaders and visionaries from each scientific commission will take the keynote speech during the special sessions.

Commission A: Electromagnetic Metrology, Electromagnetic Measurements, and Standards

Perry F. Wilson
NIST, USA


• Biography
Perry F. Wilson (S’78-M’82-SM’93-F’05) received his Ph.D. in Electrical Engineering from the University of Colorado in 1983. He currently leads the RF Fields Group in the RF Technology Division of the National Institute of Standards and Technology, in Boulder, Colorado. Dr. Wilson’s research has focused on the application of electromagnetic theory to problems in electromagnetic compatibility EMC) and RF field metrology. Dr. Wilson is a Fellow of the IEEE, a member of US IEC TC77B TAG, past Editor-in-Chief of the IEEE EMC Transactions, a recipient of a 2010 IEEE EMC Society Technical Achievement Award, a recipient of the 2002 IEEE EMC Transactions Best Paper Award, and a recipient of a 2007 US Department of Commerce Gold Medal.

• Abstract
Antenna and Field Probe Metrology: A NIST Perspective
Two core metrology activities in the RF Fields Group at the National Institute of Standards and Technology (NIST) in Boulder, Colorado are antenna parameters (pattern, gain, polarization) and electric field strength (V/m). This talk will cover recent NIST research and results in these two areas. First, NIST has brought on line a new antenna range with application from about 50 – 500 GHz based on a six-degree-of-freedom, articulated-arm industrial robot. Coupled with a dynamic laser tracker system and spatial geometry software, the range allows us to perform near-field scans and make antenna parameter measurements at mmw frequencies with high precision. Second, NIST is progressing with work to develop a quantum based field strength probe that allows us to directly measure field strength without the need for a calibrated probe or calibrated reference field. Based on the Rydberg state of alkali atoms (rubidium, cesium) the probe is projected to be small, non-metallic, self-calibrating, and wideband (1 GHz – 1 THz). Measurement results for both the antenna and field strength systems will be shown.

Commission B: Fields and Waves

Lotfollah Shafai
University of Manitoba, Canada


• Biography
Lotfollah Shafai B.Sc. from University of Tehran in 1963 and M.Sc. and Ph.D., from University of Toronto, in 1966 and 1969. In November 1969, he joined the Department of Electrical and Computer Engineering, University of Manitoba as a Lecturer, Assistant Professor 1970, Associate Professor 1973, Professor 1979, and Distinguished professor 2002, and Distinguished Professor Emeritus 2016. His assistance to industry was instrumental in establishing an Industrial Research Chair in Applied Electromagnetics at the University of Manitoba in 1989, which he held until July 1994. In 1986, he established the symposium on Antenna Technology and Applied Electromagnetics, ANTEM, at the University of Manitoba, which has grown to be the premier Canadian conference in Antenna technology and related topics.

He has been the recipient of numerous awards. In 1978, his contribution to the design of thefirst miniaturized satellite terminal for the Hermes satellite was selected as the Meritorious Industrial Design. In 1984, he received the Professional Engineers Merit Award and in 1985, "The Thinker" Award from Canadian Patents and Development Corporation. From the University of Manitoba, he received the "Research Awards" in 1983, 1987, and 1989, the Outreach Award in 1987 and the Sigma Xi Senior Scientist Award in 1989. In 1990 he received the Maxwell Premium Award from IEE (London) and in 1993 and 1994 the Distinguished Achievement Awards from Corporate Higher Education Forum. In 1998 he received the Winnipeg RH Institute Foundation Medal for Excellence in Research. In 1999 and 2000 he received the University of Manitoba Research Award. He is a life Fellow of IEEE and a life Fellow of The Royal Society of Canada. He was a recipient of the IEEE Third Millenium Medal in 2000 and in 2002 was elected a Fellow of The Canadian Academy of Engineering and Distinguished Professor at The University of Manitoba. In 2003 he received an IEEE Canada “Reginald A. Fessenden Medal” for “Outstanding Contributions to Telecommunications and Satellite Communications”, and a Natural Sciences and Engineering Research Council (NSERC) Synergy Award for “Development of Advanced Satellite and Wireless Antennas”. He held a Canada Research Chair in Applied Electromagnetics from 2001 to 2015, and was the International Chair of Commission B of the International Union of Radio Science (URSI) for 2005-2008. In 2009 he was elected a Fellow of the Engineering Institute of Canada, and was the recipient of IEEE Chen-To-Tai Distinguished Educator Award. In 2011 he received the Killam Prize in Engineering from The Canada Council, for his “outstanding Canadian career achievements in engineering, and his research on antennas”. In 2013 he received The “John Kraus antenna Award” from IEEE Antennas and Propagation Society “For contributions to the design and understanding of small high efficiency feeds and terminals, wideband planar antennas, low loss conductors, and virtual array antennas”. In 3014 he was the recipient of Edward E. Altshuler Best paper Prize from IEEE APS Magazine.

• Abstract
Challenges of Antenna Miniaturization and performance enhancement
A number of new technologies have recently emerged that cover different areas in communications, autonomous navigation, remote sensing, medical imaging and health monitoring, that operate with wireless information exchanges among multiple devices. Since the dominant means of information exchange is electromagnetic waves, they need antennas to transmit and receive the waves and electronics to process them. However, antennas must interface two separate bounded and unbounded media, where waves have distinct sizes. Consequently, to interact efficiently with waves their dimensions have become wavelength dependent, limiting their size reductions. This is the major impediment for antenna miniaturization. On the other hand, advancement of traditional technologies and emergence of new ones require ongoing size reductions to incorporate more features and operate at lower cost. This size discrepancy, thus, has made antennas the “Achilles’ heel” of technology progress, and is not limited to any particular area. Any small reduction in the antenna size provides a major progress in related technologies. This presentation will highlight the penalties paid for antenna miniaturization using traditional design methods, and provide examples of new design techniques that can overcome them.

 

Commission C: Radio-communication Systems and Signal Processing

Hyun Kyu Chung
ETRI, Korea
• Biography
Dr. Hyun Kyu Chung is a vice president of ETRI(Electronics and Telecommunications Research Institute) and head of 5G Giga-communications Research Laboratory. In this role, he is responsible for mobile communication R&D and CPND(Contents, Platform, Network and Device) technologies for the Giga-Korea Project in ETRI. He received B.S. degree from Seoul National University in 1985 and his master degree on electrical engineering from KAIST in 1988. Then, he joined to KT(Korea Telecom) in 1988 as a researcher. After moving his career to SK Telecom in 1993, he had served as a researcher for deploying world-first CDMA commercial networks in Korea. Since then, he had served as head of SK Telecom U.S. R&D Center at Fairfield, New Jersey. In U.S. he pursued Ph.D. degree in electrical engineering in Polytechnic institute of NYU, Brooklyn, New York, where his research interest was wave propagation for mobile communications. After his doctoral degree in 2000, he joined to Lucent Technologies in New Jersey as a member of technical staff and then joined ETRI in 2001.

• Abstract
Measurement-Based Millimeter-Wave Wideband Channel Characteristics for 5G Communication Systems
In contrast to the frequency bands below 6 GHz, there have been numerous debates on the use of millimeter-wave (mmWave) frequencies for mobile cellular networks. The debates were primarily caused by misunderstandings about the mmWave propagation behavior regarding path loss and straight-line propagation properties. These myths were commonly accepted because of their apparent inherency to very high frequencies. In this keynote talk, we discuss these issues by investigating mmWave propagation characteristics and channel models with field measurement data especially targeting mobile cellular networks. The path loss characteristics will clarify the severity of mmWave propagation losses and provide information on the radius of cell coverage, amount of interference, calculation of link margin, etc. The multipath angular profiles tell us from where signals are arriving and provide information for the determination of beamwidth and beamforming. The multipath delay characteristics provide the frequency-selectivity information on system design such as symbol period and the cyclic prefix length in OFDM. In addition to these fundamental mmWave propagation properties, we discuss a 3GPP-like stochastic channel model and provide parameters appropriate to the mmWave bands. Finally, we discuss mmWave system impacts caused by the adoption of directional antenna beamforming: beam mis-alignment and selection of beamwidth. Our measurement data were collected in both an outdoor urban microcellular (UMi) and indoor hotspot (InH) environments with our custom-developed sounder operating at 28 and 38 GHz.

Commission D: Electronics and Photonics

Tadao Nagatsuma
Osaka University, Japan
• Biography
Tadao Nagatsuma received B.S., M.S., and Ph.D. degrees in electronic engineering from Kyushu University, Fukuoka, Japan, in 1981, 1983, and 1986, respectively. From 1986 to 2007, he was with Nippon Telegraph and Telephone Corporation (NTT), Atsugi, Kanagawa, Japan. Since 2007, he has been a Professor at Graduate School of Engineering Science, Osaka University, and a Director of the Science and Technology Entrepreneurship Laboratory at Osaka University. His research interests include millimeter-wave and terahertz photonics and their applications to wireless communications, sensing, and measurement. He is a Fellow of the IEEE, a Fellow of the Institute of Electronics, Information and Communication Engineers (IEICE), Japan, and a Fellow of the Electromagnetics Academy. He currently serves as an Associate Editor of the IEEE Photonics Technology Letters, and a Director of the IEICE.

• Abstract
Millimeter-wave and Terahertz Technologies Enabled by Photonics
This talk presents how effectively photonics technologies are implemented not only in generation, detection and transmission of continuous millimeter waves (MMW) and terahertz (THz) waves, but also in system applications such as communications, measurements, spectroscopy and imaging to efficiently enhance their performance. First, key device and component technologies are reviewed. Then, wireless communications applications are discussed aiming at a data rate of terabit/s. Next, frequency-domain THz spectroscopy systems are described, in particular focusing on the approach to increasing a measurement sensitivity, and a similar technique is successfully applied to visualization of MMW/THz electric-field radiation and propagation, which is useful for the characterization of devices and systems. Moreover, 2D/3D imaging applications are presented. Finally, in order to make MMW/THz systems more compact and cost-effective, recent challenges in photonic integration technologies are described, which include monolithically integrated photonic signal generators, and hybrid integration schemes using, for example, photonic crystal platforms.

Commission E: Electromagnetic Environment and Interference

D. V. Giri
Life Fellow of IEEE, Adjunct Professor, Dept. of ECE, University of New Mexico & International Chair, Commission E of URSI


• Biography
Dr. Giri has 40 years of work experience in the general field of electromagnetic theory and its applications in NEMP (Nuclear Electromagnetic Pulse), HPM (High-Power Microwaves), Lightning, and UWB (Ultra Wideband). A complete description of his academic training and work experience may be seen at his website:  www.dvgiri.com
He obtained the B.Sc., Mysore University, India, (1964), B.E., M.E., Indian Institute of Science, (1967) (1969), M.S., Ph.D., Harvard University, (1973) (1975), Certificate, Harvard Introduction to Business Program, (1981).
Since 1984, he is a self-employed consultant doing business as Pro-Tech, in Alamo, CA, performing R&D work for U.S. Government and Industry.  He is also an Adjunct Professor in the Dept. of ECE, University of New Mexico, Albuquerque, NM. Dr. Giri has taught graduate and undergraduate courses in the Dept. of EECS, University of California, Berkeley campus. From May 1978 to September 1984, he was a staff scientist at LuTech, Inc., in Berkeley, CA.  Prior to his association with LuTech, Inc., Dr. Giri was a Research Associate for the National Research Council at the Air Force Research Laboratory (AFRL), Kirtland AFB, New Mexico, where he conducted research in EMP and other aspects of electromagnetic theory.  Dr. Giri is a LIFE FELLOW of IEEE, a Charter Member of the Electromagnetics Society, and Member of Commission B, URSI and International Chairman of Commission E, URSI.  He has served on the editorial board of the Journal of Electromagnetics, published by the Electromagnetics Society.  He has also served as an Associate Editor for the IEEE Transactions on Electromagnetic Compatibility. He was elected to the grade of FELLOW by the awards committee of Summa Foundation in 1994 for his contributions to EMP simulator design and HPM antenna design.  He has coauthored a book titled High-Power Microwave Systems and Effects published by Taylor and Francis in 1994.  He is a co-recipient of the IEEE Antennas and Propagation Society’s 2006 John Kraus Antenna Award. His second book titled High-Power Electromagnetic Radiators: Nonlethal Weapons and Other Applications has been published by Harvard University Press in 2004. He has also published over 100 papers, reports etc. He is a recipient of 2006 John Kraus Antenna Award by IEEE Antennas and Propagation Society.

He is a Co-Editor with Prof. Raj Mittra, and they have started an on-line Forum and Journal on Electromagnetics called FERMAT (www.e-fermat.org).

• Abstract
Pulsed Antennas for Applications in High-Power Electromagnetics (HPEM)
Natural lightning is the only nature-made example of an HPEM signal.  There are many man-made HPEM signals such as Nuclear Electromagnetic Pulse (NEMP), High-Power Microwaves (HPM) , Hyperband (short pulse)  systems etc. [D. V. Giri and F. M. Tesche, “Classification of Intentional Electromagnetic Environments (IEME),  IEEE Trans. EMC, Aug. 2004]. To study the effects of such HPEM signals on electronic systems – from a simple device to fully assembled systems such as an aircraft or a ship, we need pulse power technologies and complex EM facilities to propagate and radiate these signals. In this presentation, we discuss ways of generating high-power pulses and how such pulses can be applied to transmission lines and antennas to produce the proper transient EM environment for vulnerability tests. The transmission lines can be very large two-conductor facilities. Examples of radiating systems are: resistively loaded monopoles, helical antennas, transmission-line fed paraboloidal reflectors etc. The fundamental working principles of such facilities will be discussed with many illustrative examples.

Commission F: Wave Propagation and Remote Sensing

V. Chandrasekar
Colorado State University, USA
• Biography
Prof Chandra is currently a University Distinguished professor of Colorado State University. He has been actively involved with research and development of weather radar systems for over 35 years. He has played a key role in developing the CSU-CHILL National Radar Facility as one of the most advanced meteorological radar systems available for research and education. He serves as the Research Director of the NSF-ERC, Center for Collaborative Adaptive Sensing of the Atmosphere. He is an avid experimentalist conducting special experiments to collect in situ observations to verify the new techniques and technologies. He is a co-author of two text books and five general books, and 190 journal articles. He has served as academic advisor for over 60 graduate students, where half of them were PhD scholars. Dr. Chandrasekar has served as a member of the National Academy of Sciences Committee that wrote the books, "Weather Radar Technology beyond NEXRAD'' and “Flash Flood Forecasting in Complex Terrain. He served as the General Chair for the IEEE, IGARSS'06 Symposium and served as the Chief Editor of the Journal of Atmospheric and Oceanic technology. He has been a visiting professor of National Research Council of Italy; Distinguished Visiting Scientist at NASA (GSFC), and currently serves as the Distinguished Professor of University of Helisnki and Finnish Meteorological Institute, and an affiliate scientist of the NASA Jet propulsion Laboratory.

He has received numerous awards including, NOAA/ NWS Director’s Medal of Excellence the Abell Foundation Outstanding Researcher Award, NASA Technical Contribution Award, IEEE Education Award, University Outstanding Advisor Award, the Abell Foundational Award for International Contributions and the as well as The CSU Research Foundation Innovation Award. He is an Elected Fellow of the IEEE, American Meteorological Society and NOAA/ CIRA.

• Abstract
Global Measurement of rainfall and precipitation Microphysics
Global observation of rainfall has been a long standing goal of the remote sensing community ever since meteorological Satellites were launched. This quest reached a new level of advancement with the launch of the Tropical Rainfall Measuring Mission (TRMM) which was a joint mission between NASA and JAXA. Hailed as one of the most successful missions, the satellite lasted for an unprecedented 17 years and collected valuable data over tropical rainfall. The key instruments that were on the TRMM satellite used for rainfall measurements were the precipitation radar and the microwave radiometer. The TRMM program was the first demonstration of precipitation radar from space. Building on the success of the TRMM mission the Global precipitation mission was launched that is again a global cooperation of space agencies with NASA and JAXA jointly building and launching the dual-frequency precipitation radar. The authors of this paper have been fortunate to have been part of both programs and have developed algorithms for not only rainfall estimation, but also microphysical characterization of rainfall on a global scale with cross validation with ground observations. This paper will describe rainfall comparisons, microphysical characterizations of global precipitation primarily from the current GPM satellite.

 

Commission G: Ionospheric Radio and Propagation

Craig J. Heinselman
EISCAT Scientific Association, Sweden
• Biography
Dr. Heinselman obtained a B.S. degree from Harvey Mudd College in 1979 and M.S. and Ph.D. degrees from Stanford University in 1996 and 1999, respectively. He has worked in the field of incoherent scatter radar for three and a half decades and has been the principal investigator of the Sondrestrom Facility in Kangerlussuaq, Greenland and the Advanced Modular Incoherent Scatter Radars (AMISRs) near Fairbanks, Alaska and Resolute Bay, Canada. He is presently the Director of the EISCAT Scientific Association with facilities in northern Norway, Sweden, Finland and on Svalbard. He has held this post since 2013. He has been a member of the IEEE since 1979 and the American Geophysical Union since 1988. His research interests include high-latitude ionospheric physics, ionosphere/neutral atmosphere physical and chemical interactions, incoherent scatter radar techniques, and phased-array radar technologies.

• Abstract
Presentation Title: Incoherent Scatter Radars: Present and Future
The incoherent scatter radar (ISR) technique is one of the most powerful ways of probing the ionospheric plasma. Due in large part to a robust theoretical foundation, ISRs can measure the most important parameters of that plasma, including electron density, electron and ion temperatures, and ion drift velocity as well as, under certain conditions, ion composition and ion-neutral collision frequency. It can do this as functions of altitude, horizontal coverage, and time largely regardless of atmospheric conditions and continuously for years at a time (system and budget permitting). A number of other key parameters describing the state of the system can also be derived from these basic measurements.

The presently operating ISR systems sport a range of capabilities and a number of key locations around the planet. Various tradeoffs were made in the system architectures at each location, largely driven by the technologies available when they were established but also in response to the ionospheric conditions of those locations. As a result, there exists a fairly wide variety of system designs supporting this kind of research. In recent years, several of the newer systems have exploited advances in both RF and digital technology to enable rapidly steerable phased-array configurations. These advances have opened measurement possibilities that didn’t exist in earlier systems.

Progress is also being made in designing the next generation of ISR systems, using more fully digital techniques with very large numbers of individual antennas. A prime example of this is the EISCAT_3D system which is now primed for implementation in the northern European auroral zone. This multi-static system of phased array antennas will open new measurement possibilities in one of the most dynamic regions of the ionosphere.

Commission H: Waves in Plasmas

Robert L. Lysak
University of Minnesota, USA
• Biography
Professor Robert L. Lysak received his Ph.D. from the University of California, Berkeley, in 1980 under the supervision of Professors Forrest Mozer and Mary K. Hudson. He has been a member of the faculty in the School of Physics and Astronomy at the University of Minnesota since 1982 and has been a full professor since 1991. He has over 30 years of experience in developing space plasma physics theory and investigating wave phenomena in the magnetosphere and auroral particle acceleration by means of numerical simulation. He has studied wave dispersion relations and linear instabilities of relevance to the auroral zone and the resulting wave-particle interactions. His main focus is on the propagation of ULF waves through the magnetosphere, their coupling to the ionosphere, and their relation to auroral particle acceleration. He has over 100 publications in refereed journals. He recently served as the Senior Editor for the Journal of Geophyscal Research: Space Physics from 2010-2013. He is a Fellow of the American Geophysical Union and the American Physical Society, and was awarded the Hannes Alfvén Medal of the European Geosciences Union in 2015.

• Abstract
Presentation Title: Magnetosphere-Ionosphere Coupling by ULF Waves
ULF waves play a critical role in the coupling of magnetospheric dynamics to the ionosphere. Shear mode Alfven waves carry field-aligned current, and as kinetic Alfven waves, can develop a parallel electric field to accelerate auroral particles. In the inhomogeneous magnetosphere, shear Alfven waves are coupled to compressional fast mode waves that can be driven by magnetospheric compressions as well as plasma instabilities such as the Kelvin-Helmholtz instability. The global response of these waves has been studied by means of a three-dimensional numerical simulation of the coupled wave modes in dipolar geometry. The coupling to the ionosphere is modeled by a fully resolved conductivity profile, which allows for a direct computation of the ground signatures of these waves.

Commission J: Radio Astronomy

Yoshinori Uzawa
National Institute of Information and Communications Technology (NICT), Japan

• Biography
Yoshinori Uzawa is a Director of the Collaborative Research Laboratory of Terahertz Technology, Terahertz Technology Research Center, National Institute of Information and Communications Technology (NICT) from 2014, after completing the development of the Atacama Large Millimeter/submillimeter Array (ALMA) band 4 & 10 receivers as an Associate Professor of the National Astronomical Observatory of Japan (NAOJ) from 2005. Before this job, he was with the Communications Research Laboratory (present NICT), where he worked on the development of quasi-optical submillimeter-wave receivers with NbN SIS junctions, after earning a master's degree in applied electronics from the Tokyo Institute of Technology (TIT) in 1991. He received his Ph.D degree in applied electronics from TIT in 2000, and is the recipient of several awards and honors. His research interests include the superconducting electronics and terahertz technologies. He is a Visiting Professor of NAOJ from 2015.

• Abstract
Development of highly sensitive superconducting receivers for ALMA band 10 and future prospects
The Atacama Large Millimeter/submillimeter Array (ALMA) is the largest ground-based radio telescope and has been constructed in the Atacama Desert in Chile at an altitude of about 5,000 m, as an international collaboration project involving East Asia, Europe, and North America in cooperation with Chile. This paper briefly introduces the telescope, and describes the development of the ALMA Band 10 (0.79-0.95 THz) receiver, which covers the highest frequency band in ALMA and is recognized as the most difficult in terms of superconducting technology. The development started in 2005, and the manufacturing/testing of all the receivers to be installed in a total of 66 Cassegrain reflector antennas that compose ALMA was completed in 2013. One of the key developments to meet the stringent ALMA requirements was Band 10 superconductor-insulator-superconductor (SIS) mixers with high quality superconducting NbTiN films. Successful additional results related to the Band 10 receivers and future prospects are also presented.

 

Commission K: Electromagnetics in Biology and Medicine

Yun-Sil Lee
Ewha Womans University, Korea
• Biography
Dr. Yun-Sil Lee is an professor of Graduate School of Pharmaceutical Sciences at Ewha Womans University. She received her B.S., M.S. and Ph.D. in College of Pharmacy from Ewha Womans University. She went on to do postdoctoral work in NCI, USA before 18 years working at Korea Institute of Radiological and Medical Sciences as a Principal Scientist, where she had a lot of works about radiation damage modulators and biological effects on EMF. Her research group focuses on development of radiation protectors or sensitizers targeted for heat shock factor 1 (HSF1) or heat shock protein 27 (HSP27) using natural products. She is also working about basic radiation damage response in relationship with cancer development. Another her interest is the biological effects of EMF including ELF and RF fields. Recent working fields for EMF are the effects on RF on development of Alzheimer disease.

• Abstract
The present study investigated the effects of RF-EMF in various animal models including lymphoma development, teratogenicity, reproductive functions, immune and endocrine system, and Alzheimer disease after exposure of CDMA (849 MHz) or WCDMA (1.95 GHz) with total SAR dose of 4.0 W/kg, which is a relatively high SAR level compared to the exposure levels for the human system recommended by ICNIRP.