（1）Title： Metasurface antennas and RIS in Space and 6G Scenarios
Prof.Stefano Maci, IEEE AP-S President 2023, IEEE Fellow,
University of Siena, Italy
Abstract:
Metasurfaces belong to the category of thin metamaterials and find applications across a wide frequency range, from microwaves to optical frequencies, for developing innovative electromagnetic engineering devices. These surfaces are created by densely arranging small elements on or etching them into a dielectric substrate in a locally periodic distribution. By adjusting the dimensions of these elements while maintaining sub-wavelength 2D periodicity, a pixelated visual appearance and an electromagnetic modulation of the equivalent local impedance boundary conditions (IBC) are achieved. The manipulation of IBC allows for localized modifications in the dispersion equation, influencing the local wavevector while maintaining a constant operating frequency. This capability enables the transformation of surface or guided waves into various wavefield configurations with specified properties. This presentation will focus on the control of surface waves (SWs), showcasing examples such as the design of high-gain, low cross-polarization antennas, multibeam antennas, and scanning beam flat lenses. Emphasis will be given to space applications. The discussion will also delve into the third generation of adaptive metasurfaces (MTSs), featuring dynamically reconfigurable boundary conditions. This advancement opens possibilities for exploring new perspectives in the development of next-generation wireless communication systems. The presentation will touch upon the concept of a Smart Radio Environment (SRE) as a new paradigm, analyzing the potential of utilizing Reconfigurable Intelligent Surfaces as an enabling technology for 6G networks.
Short Bios:
Stefano MACI is a Professor at the University of Siena (UNISI). Since 2000, he has been P.I. of 10 research projects funded by the European Union (EU) and by the European Space Agency (ESA). He is a Fellow of IEEE since 2004. In 2004 he founded the European School of Antennas (ESoA), a PhD school that presently comprises 35 courses on Antennas, Propagation, and Electromagnetic Theory, and 200 teachers, among them 20 IEEE Fellow. He has been advisor of 40 PhD students. He has been former member of IEEE Antennas and Propagation Society (AP-S) AdCom, the Chair of the Award Committee of the IEEE AP-S, member of the AP Executive Board of IET (UK), Distinguished Lecturer of IEEE and of EurAAP. He was recipient of several prizes and awards, among which the EurAAP Award 2014, the Chen-To Tai Distinguished Educator award 2016, of the Shelkunoff Transaction Prize in 2015, and of the URSI Dellinger Gold Medal in 2020. He is presently Director of ESoA. He has been TPC Chair of the METAMATERIAL 2020 and and General Chair of EuCAP 2023. He was the president of the IEEE Antennas and Propagation Society 2023. In the last ten years he has been invited 60 times as key-note speaker in international conferences. His research activity is documented in 200 papers published in international journals, (among which 100 on IEEE journals), 10 book chapters, and about 450 papers in proceedings of international conferences.
（2）Title： The Fascinating World of Lorenz–Mie Scattering
Prof.Ari Sihvola
President of URSI， Fellow of IEEE
Aalto University, Finland
Abstract:
Studies of the interaction of electromagnetic waves with scattering objects have been in the focus of physical scientists since the discovery of Maxwell’s equations in the latter part of the 19th century. The canonical solution of the scattering fields by a homogeneous sphere has been known based on the studies of Ludvig Valentin Lorenz and Gustav Mie. Despite such a long history, the richness of the phenomena hidden in the scattering problem keeps the electromagnetics, microwave, and optical communities interested in this field still today. In the talk, I will discuss the variety of known and unexpected results of the wave scattering by various objects, in particular when the response of the scattering particles is generalized into complex media and into objects characterized by non-traditional boundary conditions.
Short Bios:
Ari Sihvola received the degree of Doctor of Technology in 1987 from the Helsinki University of Technology (TKK), Finland (presently Aalto University). Besides working for TKK, Aalto, and the Academy of Finland, he was visiting engineer in the Research Laboratory of Electronics of the Massachusetts Institute of Technology, Cambridge, in 1985–1986. In 1990–1991, he worked as a visiting scientist at the Pennsylvania State University, State College. In 1996, he was visiting scientist at the Lund University, Sweden. He was visiting professor at the Electromagnetics and Acoustics Laboratory of the Swiss Federal Institute of Technology, Lausanne (academic year 2000–01), in the University of Paris 11, in Orsay (June 2008), and in the University of Rome La Sapienza (May–June 2015). His research interests include waves and fields in electromagnetics, modeling of complex media and metamaterials, remote sensing, education in physics and engineering, and history of electrical engineering. He is presently professor in the School of Electrical Engineering at the Aalto University. Ari Sihvola is President of the International Union of Radio Science (URSI) and Life Fellow of IEEE.
（3）Title: Challenges of 6G deployment in the mmwave and sub-THz bands
Prof.Sana Salous,Vice President of URSI
Durham University,UK
Abstract:
In the World Radio communication Conferences (WRC) 2015, WRC 2019 and the most recent WRC 2023 several frequency bands have been identified in the mm wave band and the sub-THz band. This led to several propagation studies in several international standardization bodies which include the International Telecommunications Union (ITU) Study Group 3 (SG3) and the European Telecommunications Standards Institute (ETSI). Several propagation deployment scenarios and use cases which include indoor, outdoor mobile and fixed links have been proposed. This led to the formation of the ETSI THz Group and Correspondence Groups in the ITU to develop suitable models to either upgrade current ITU recommendations or develop new recommendations for the sub-THz band for the identified use cases and the identified frequency bands. The talk will give an overview of the proposed use cases, identified frequency bands and the propagation models under development in both the ITU and ETSI and the challenges for the deployment of the higher frequency bands for 6G.
Short Bios:
Prof Sana Salous (SS) (FIET, FURSI) is the Director of the Centre for Communication Systems at Durham University since 2003. She is one of four members of the board of the International Union of Radio Science (URSI) and is a UK delegate to Study Group 3 of the ITU where she also chairs a correspondence group CG 3K-5 and a major contributor to CG 3K-6 responsible for the development of propagation models for different deployment scenarios. She was elected Vice Chair of the recently formed ETSI THz ISG group, editor in chief of Radio Science, and author of the book on Radio propagation and channel modelling. She contributed to several ITU recommendations with recent contributions being focused on propagation models for 5G/6G radio networks.
（4）Circularly Polarized Antennas for Drone, Airborne, HAPS, and Spaceborne Synthetic Aperture Radar: Remote Sensing Missions and Applications
Prof. Josaphat Tetuko Sri Sumantyo
Center for Environmental Remote Sensing, Chiba University, Japan
Department of Electrical Engineering, Universitas Sebelas Maret, Indonesia
Abstract：
Global warming and plate tectonic activities cause atmospheric and land surface disasters, i.e. typhoons, linear rainbands, heavy rain, earthquakes, volcanic eruptions, etc. Several remote sensors have been developed to monitor the Earth's surface dynamics using optical and microwave, especially the microwave remote sensor as synthetic aperture radar (SAR). SAR sensors can penetrate clouds and be available to operate day and night time, which is also called all-weather sensors. Global and local observation with various resolutions of SAR images is required for several observation modes and purposes for disaster mitigation, observation, and recovery. Therefore, our laboratory is developing the circularly polarized synthetic aperture (CP-SAR) for drones, aircraft, high altitude platform systems (HAPS), and microsatellites. The CP-SAR is operated in L, C, X, and K bands for various missions and applications. This talk will introduce the microstrip, horn, and parabolic CP antennas for SAR sensors in multi-platforms for various missions and applications, including the SAR image signal processing using AI for land management to realize disaster resilience in society. The development of these multi-platform sensors using CP antennas includes international research and education collaboration on microwave remote sensing since 2005. This international education includes a double degree program (DDP) in master's and doctoral courses to promote high skills and knowledge of microwave remote sensing for future Earth and planetary missions.
Short Bios：
Josaphat Tetuko Sri Sumantyo received the B.Eng and M.Eng from Kanazawa University, Japan in 1995 and 1997, respectively, and the Ph.D from Chiba University, Japan in 2002. He was a Researcher with the Agency for Assessment and Application of Technology (BPPT), Jakarta from 1990 to 1999; a Lecturer (Post Doctoral Fellowship Researcher) at the Center for Frontier Electronics and Photonics, Chiba University, Japan from 2002 to 2005; an Associate Professor at the Center for Environmental Remote Sensing, Chiba University from 2005 to 2013; a Full Professor at the same center from 2013 to now. His main research is the development of large-scale drone and high altitude platform systems (HAPS) for remote sensing; microwave sensors including synthetic aperture radar (SAR) for drones, aircraft, HAPS, and microsatellites; scattering microwave theory and its applications, especially InSAR and Polarimetric SAR; and circularly polarized antennas. He is the recipient of 31 awards, published 17 books, 155 journal papers, 539 conference papers, 377 invited talks, and 17 books. He was the General Chair of IEEE GRSS supported The 7th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR 2021) and the 8th APSAR 2023; a co-leader of the WG on Remote Sensing Instrumentation and Technologies for Unmanned Aerial Vehicles of IEEE GRSS IFT-TC, and an Associate Editor of IEEE Geoscience and Remote Sensing Letters (GRSL) since March 2021. Detail in https://www.jmrsl.jp
（5）Recent Developments in Wireless Energy Harvesting and Power Transfer
Prof Yi HUANG, IEEE Fellow
The University of Liverpool, UK
Abstract:
In this keynote presentation, Prof Huang will explore the fascinating realm of wireless energy harvesting (WEH) and wireless power transfer (WPT). WEH focuses on efficiently obtaining energy from the wireless environment, while WPT involves the wireless transmission of energy. The key device connecting these two technologies is the rectifying antenna, also known as the rectenna.
While WEH aims to harvest energy across a broad range of frequencies, WPT is designed for efficient energy transfer within specific frequency bands. This talk will begin with an overview of rectenna systems developed thus far, highlighting the challenges in maximizing power conversion efficiency — the crucial performance metric for rectennas. Most current research in this field is focused on RF and microwave frequencies which is also the most important part of this talk. Prof Huang will report the latest developments in this area.
In addition, he will present some research conducted at the University of Liverpool, showcasing innovative work in WEH and WPT, and delve into diverse areas of exploration, including the integration of communication and wireless power transfer, which holds promising prospects for the future.
WEH and WPT technologies have the potential to revolutionize our energy landscape. By improving rectenna systems and venturing into higher frequencies, we can unlock new possibilities for wireless energy generation. The talk will be completed by going through some applications for consumer electronics, medical, electrical vehicles and IoT.
Short Bios：
Prof Yi Huang received DPhil in Communications from the University of Oxford, UK in 1994. He has been conducting research in the areas of wireless communications, applied electromagnetics, radar, and antennas since 1987. His experience includes 3 years spent with NRIET (China) as a Radar Engineer and various periods with the Universities of Birmingham, Oxford, and Essex in the UK as a member of research staff. He worked as a Research Fellow at British Telecom Labs in 1994 and then joined the Department of Electrical Engineering& Electronics, the University of Liverpool, UK as a Faculty in 1995, where he is now a full Professor in Wireless Engineering, the Head of High Frequency Engineering Group.
Dr Huang has published over 500 refereed papers in leading international journals and conference proceedings and authored books on Antennas: from Theory to Practice (John Wiley, 2008, and 2021) and Reverberation Chambers (Wiley 2016, and 2019). He has received over 10 awards (e.g. the IET Premium Award 2022 for Best Paper, EuCAP2023 Best Antenna Paper, the IET Innovation Award 2018, and BAE Systems Chairman's Award 2017) and many research grants from research councils, government agencies, charities, the EU, and industry, acted as a consultant to various companies, and served on many national and international technical committees (such as the IET, EPSRC, European ACE, COST-IC0603, and COST-IC1102, and EurAAP) and been an Editor, Associate Editor or Guest Editor of four of international journals (including IEEE AWPL 2016-2022). He has been a keynote/invited speaker and organiser of many international conferences and workshops (e.g. EuCAP2018/2024, IEEE iWAT, WiCom, and LAPC). He was the Editor-in-Chief of Wireless Engineering and Technology and IEEE AWPL, is now an Associate Editor of IEEE Trans on Antennas and Propagation, a College member of EPSRC, the UK/Ireland Delegate to EurAAP (2016-2020, 2022-date), a member IEEE APS New Technology Directions Committee, a Distinguished Lecturer of IEEE APS, and a Fellow of IEEE. More information can be found from:
https://www.liverpool.ac.uk/people/yi-huang
（6）Exploring Structural Integration, Physical Agility, Multifunctional Operation, and Performance Enhancement through Mode-Diversity and Mode-Selectivity
Prof.Ke Wu，IEEE Fellow
Former President of IEEE Microwave Theory and Techniques Society (2016)
Chair of Industrial Research in Future Wireless Technologies
Poly-Grames Research Center, Department of Electrical Engineering
Ecole Polytechnique ，University of Montreal，Canada
Abstract:
This presentation will address and review the fundamental physical and engineering issues of integrated guided-wave structures in connection with the state-of-the-art planar transmission line synthesis and development. In particular, the technique of mode diversity within the same substrate development platform will be explained and discussed with a number of examples. In addition, an emerging concept of mode selectivity will be exposed and detailed with its physical mechanism for low-loss and low-dispersion super-wideband and ultra-fast signal transmissions over the DC-THz spectrum. Theoretical and experimental results will be presented in an effort to explore structural integration, multifunctional operation, physical agility, and performance enhancement of integrated transmission lines through two approaches, namely mode-diversity and mode-selectivity.
Short Bios:
Dr. Ke Wu is Industrial Research Chair in Future Wireless Technologies and Professor of Electrical Engineering with Polytechnique Montréal (University of Montreal), where he is also Director of Poly-Grames Research Center. He was the Canada Research Chair in RF and millimeter-wave engineering, NSERC-Huawei Endowed Chair, and the Founding Director of the Center for Radiofrequency Electronics Research of Quebec. He has authored/co-authored over 1500 referred technical papers, and many books/book chapters and filed more than 90 patents. Dr. Wu was the organizer of numerous conferences and events including the General Chair of the 2012 IEEE MTT-S International Microwave Symposium (IMS – the largest IEEE annual conference). He was the 2016 President of the IEEE Microwave Theory and Technology Society (MTT-S). He also served as the two-terms inaugural representative of North America in the General Assembly of the European Microwave Association (EuMA). He was the recipient of many awards and prizes including the 2019 IEEE MTT-S Microwave Prize, the 2021 EIC Julian C. Smith Medal, 2022 IEEE MTT-S Outstanding Educator Award, and 2022 IEEE AP-S John Kraus Antenna Award. He was an IEEE MTT-S Distinguished Microwave Lecturer. Dr. Ke Wu is a Fellow of the IEEE, the Canadian Academy of Engineering, and the Academy of Science of the Royal Society of Canada, and the German National Academy of Science and Engineering (acatech).
（7）
Prof. Wonbin Hong, IEEE Fellow,
Pohang University of Science and Technology, Republic of Korea
Abstract:
Classical Information Theory has been extremely effective despite the inherent mismatch in the physical layer.
However, we now live in an era where any form of Electromagnetic skins (EMSs) can be employed to manipulate the wireless channel matrix. Either Line-of-sight or non-Line-of-sight (nLOS) channels can be achieved through the use of reconfigurable intelligent surfaces, passive reflectarrays, and frequency-selective surfaces. These EM skins can be realized to enable holographic characteristics on demand.
In this talk, we explore how beam manipulating surfaces, embedded among our environment is fundamentally altering the classical information theory. Detailed examples of beam manipulating surfaces are integrated with cognitive radios, which exploit field diagnosis and deep learning for acquiring channel state information.
Short Bios:
Wonbin Hong is currently a Distinguished Professor at Pohang University of Science and Technology (POSTECH), Republic of Korea (ROK). He has authored over 250 publications, 3 books and is the inventor of more than 350 patents. He was previously with Samsung Electronics where he invented the world’s first mmWave 5G mobile antenna and Antenna-on-Display.
Prof. Hong is the recipient of over 40 government, IEEE, Industry Awards. He is an elected Young member of Korean Academy of Science and Technology, the highest academic institute in ROK. Prof. Hong is a Fellow of the IEEE.
(8)Title：Recent Progress in the Finite Element Spectral Integral (FESI) Method
Prof. Qing Huo Liu1,2
Huimin Kang2, Zefei Sun2, Siwei Wan3, Chunhui Zhu2, Mingwei Zhuang2
1Eastern Institute of Technology, Ningbo, China
2Institute of Electromagnetics and Acoustics, Xiamen University, Xiamen, China
3Department of Electrical and Computer Engineering, Duke University, USA
Abstract:
We will present our recent progress in developing the finite element spectral integral (FESI) method for computational electromagnetics. FESI is a hybrid method where the surface integral equations are solved by using the spectral integral method, while the partial differential equations are solved by the finite element method. Our recent works have extended this FESI method to allow multiple regions of inhomogeneous targets without the need to discretize the vast background volumes between different regions. This is potentially very useful for array antennas and scattering from separated clusters of objects, among many other applications. We will demonstrate its advantages over traditional methods in several realistic examples.
Short Bios:
Qing Huo Liu received his B.S. and M.S. degrees in physics from Xiamen University, China, and Ph.D. degree in electrical and computer engineering from the University of Illinois at Urbana-Champaign, USA. His research interests include computational electromagnetics and acoustics, inverse problems, and their applications. He has published over 700 refereed journal papers in these areas. He was a Research Scientist and Program Leader with Schlumberger-Doll Research before moving to academia. From 1999 to 2022 he was with Duke University as a tenured Professor of Electrical and Computer Engineering. Since 2022 he has been a Chair Professor and Dean of Electronic Science and Technology, Eastern Institute of Technology, Ningbo, China.
Professor Liu is a Fellow of the IEEE, Fellow of Optica, Fellow of the Acoustical Society of America, and Fellow of Electromagnetics Academy. From 2015-2018 he served as the founding Editor-in-Chief of the IEEE Journal on Multiscale and Multiphysics Computational Techniques. He received the 1996 Presidential Early Career Award for Scientists and Engineers (PECASE) from the White House, USA. He is also the recipient of the 2017 Technical Achievement Award and 2018 Computational Electromagnetics Award from the Applied Computational Electromagnetics Society, and the 2018 Harrington-Mittra Award in Computational Electromagnetics from IEEE Antennas and Propagation Society.