4th URSI Atlantic Radio Science Meeting


AT-RASC 2024 Programme

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AT-RASC 2024 General Lectures


GENERAL LECTURE 1 : A Journey through Past, Present, and Future Radio Astronomy Activities in Spain (Monday 20 May, 2024)

Speaker : Prof. Cristina Garcia-Miro (Yebes Observatory, IGN, Spain)

Cristina Gacia-Miro holds a degree in Astronomy from the Complutense University of Madrid (Spain) and an M.Sc. in Astrophysics from the University of Granada (Spain). Her first job was as spacecraft controller and telescope operator of the International Ultraviolet Explorer Space Telescope (IUE, ESA/NASA). For 17 years she was support radio astronomer at the NASA Deep Space Communications Center in Madrid, specialising in VLBI and single dish observations with large scientific facilities and supporting different NASA projects. From 2017 to 2021 she worked for the H2020 JUMPING JIVE EU project as SKA-VLBI scientist, first at the SKA headquarters at Jodrell Bank in the UK, and later at the Joint Institute for VLBI ERIC in the Netherlands. Three years ago, she joined the Yebes Observatory and the National Astronomical Observatory of Spain (IGN) as a VLBI support scientist, participating in international research projects. She has recently been appointed President of the Radio Astronomy Commission of URSI-Spain.



GENERAL LECTURE 2 : The quantum SI: a focus on electromagnetic units and standards (Tuesday 21 May, 2024)

Speaker : Dr. Luca Callegaro (Istituto Nazionale di Ricerca Metrologica, Torino, Italy)

Luca Callegaro was born in 1967. He received the M.Sc. degree in electronic engineering and the Ph.D. degree in physics from the Politecnico di Milano, Milan, Italy, in 1992 and 1996, respectively. He joined the Istituto Nazionale di Ricerca Metrologica (INRIM), Turin, Italy, in 1996, where he is currently the Head of the Quantum Electronics Group. He has authored more than 100 articles on international reviews and the book Electrical Impedance: Principles, Measurement and Applications. His research interest is focused on the metrology of electrical impedance and on quantum electrical metrology. He is responsible for the Italian National standards of electrical capacitance, inductance, ac resistance, and ac voltage ratio.

Dr. Callegaro is a member, and served four years as the Chair, of the Technical Committee for Electricity and Magnetism (TC-EM) of the European Association of National Metrology Institutes (EURAMET). He is the Italian delegate to the Consultative Committee for Electricity and Magnetism (CCEM) of the International Committee for Weights and Measures (CIPM).



GENERAL LECTURE 3 : ITU-R Study Groups Activities relating to the Efficient Use and Management of Radiofrequency Spectrum (Wednesday 22 May, 2024)

Speaker : Prof. Sergio Buonomo (ITU)

Sergio Buonomo is the Chief of the Study Group Department at the Radiocommunication Bureau (BR) of the International Telecommunication Union (ITU) and he is responsible for the organization and management of all ITU-R Study Groups In the past, he worked for about ten years as microwave engineer at European Space Agency in charge of antenna and propagation studies to support space projects. In 1998, he joined ITU where has covered several positions in different departments. As of 2007 he has been working as Counsellor of Study Group 3 on Propagation and, from 2010, as Counsellor of Study Group 5 on Terrestrial systems which includes fixed services, land mobile, wireless access, and IMT systems. Sergio Buonomo holds a PhD in electromagnetics engineering at the University of Naples, Italy and a PhD in Physics.



GENERAL LECTURE 4 : Echoes of Sound and Radio (Thursday 23 May, 2024)

Speaker : Prof. Sana Salous (Durham University, UK)

Professor Salous started her academic career as an Assistant Professor at Yarmouk University, Jordan. In 1989 she joined the Department of Electrical Engineering & Electronics at UMIST. In 2003 she joined Durham University where she currently holds the Chair in Communication Engineering and is the Director of the Centre for Communication Systems. Professor Salous radio propagation reseacrh covers HF for sky wave propagation for long range communication and UHF to the millimeter wave band for 5G mobile communications. In this area she introduced the digital frequency sweep technique for high bandwidth channel sounders for radio propagation studies. She is an active member of URSI, various COST actions and a member of the UK delegation to the International Union of Telecommunications


GENERAL LECTURE 5 : Make Optical Lattice Clocks Compact and Useful for Real-world Applications (Friday 24 May, 2024)


Speaker : Prof. Hidetoshi Katori (The University of Tokyo, Japan)


Dr. (Prof.) Hidetoshi Katori is a Professor at the Department of Applied Physics, Graduate School of Engineering, University of Tokyo, Japan. He is also the chief scientist at Quantum Metrology laboratory, Riken, leading the Space-Time Engineering research team at Riken, Japan.   He served as a Distinguished Professor at the University of Tubingen, Germany.

Professor Katori is widely regarded as the inventor of “Neutral atom-based optical lattice clocks”. In early 2000s, his work related to “Ultrastable Optical Clock with Neutral Atoms in an Engineered Light Shift Trap”, and its demonstration in 2005 has provided the breakthrough for the start of work on optical lattice clocks and its various applications in timekeeping, geodesy, and fundamental physics. He demonstrated optical lattice clocks with Strontium(Sr), Ytterbium(Yb), Mercury (Hg) and Cadmium (Cd) neutral atoms. He measured the frequency ratios between Sr, Yb and Hg atoms, a prerequisite for the adoption of optical atomic clocks as the primary time standard and is a highly cited work. Neutral atom optical lattice clocks are one of the primary candidates for the re-definition of the SI second and already has been accepted as the secondary representation of the second.

Recently, Prof. Katori started experimenting on a compact transportable optical lattice clocks for field experiments. Dr. Katori demonstrated geodesy by using Einstein’s relativity idea that two clocks at different heights will be ticking at different rates. He did the famous Tokyo-Skytree experiment where he took one of his transportable clocks to one of the viewer's gallery and demonstrated height difference measurement at centimeter level accuracy.

Prof. Katori group is also involved in the research for Thorium based nuclear clock and has recently been successful in the measurement of energy of 229Th nuclear clock isomer. He proposed the idea for “Internet of clocks” for various geoscience-related measurements like earthquakes, which has opened up a new field of application for such clocks.

He led various prestigious projects like CREST (Japan science & technology), ERATO Katori innovative space-time project, the JST Mirai program etc. Prof. Katori has been a recipient of many prestigious awards. To name a few in this long list is Julius springer prize (2005), RABI award (2008), The Philipp Franz von Siebold prize (2011), Micius quantum prize (2020), Breakthrough prize in Fundamental Physics (2021),  the 20th IBM Japan science award (2006), The Asahi prize (2011), Medal with Purple ribbon (2014), The 54th Fujihara award (2013), The 14th Leo Esaki Prize (2017), The Honda prize (2022).




COMMISSION C ECR Tutorial : Deep Learning in Radiocommunication Systems and Networks (Wednesday 22 May, 2024, 16:00-17:00)

Speaker : Krzysztof K. Cwalina (Gdansk University of Technology, Poland)


COMMISSION E ECR Tutorial : Spectrum management as an enabler of sustainable innovation: from radio science to radiocommunication services  (Wednesday 22 May, 2024, 17:00-18:00)

Speaker : Flavio Jorge (International Union of Radio Science, Lisbon, Portugal)


COMMISSION D ECR Tutorial : Energy-Autonomous Wireless Sensors for IoT Applications  (Wednesday 22 May, 2024, 16:00-17:00)

Speakers :
Valentina Palazzi (University of Perugia, Perugia, Italy)
Paolini Giacomo (University of Bologna, Bologna, Italy)



Workshop : Radio Science and Engineering in Disaster Risk-Assessment, Management and Alleviation (DRAMA), Thursday 23 May, 9:00 - 11:20 am

Organisers : Giuliano Manara, Madhu Chandra, Claudio Cesaroni, Yasuhide Hobara and Tullio Tanzi


Ionogram Interpretation and Scaling Tutorial Day (Sunday 19 May) (fully booked)

Convenors : Ivan Galkin and Michael Pezzopane

The tutorial will be led bybe led by Tobias G. W. Verhulst and Claudio Cesaroni


URSI Radio Science School for Young Scientists, Sunday 19 May (10:40 -18:00)

School Organiser: Prof. Nuno Borges Carvalho, University of Aveiro, Portugal

Course Topic: Wireless Power Transmission for A Sustainable Society

Relevant Commissions: A, B, C, D, E, F, G, H, K


Energy is at the center of all our activities, especially now, that electricity become a need for basic human survival. Nevertheless, the resources are limited and on certain occasions, we need to rely on the opportunity to have specific energy availability and energy on demand, so that sensors, emergency communications, and electrical operated devices, in general, continue to operate even if the energy grid is not there. All electrical mobile solutions depend heavily on batteries including electric cars, with the burden chemical batteries bring to environmental pollution.

If we can deliver energy using electromagnetic waves the same breakthrough we had seen in the last century with wireless communications, will be a reality also with wireless energy. Delivering energy where we need it and when we need it, including the removal of batteries from electrical devices, and relocating the energy from the sun to earth using space-based solar power, with a 24/24h energy availability, will make a change in how we see energy problems.

In this talk, we will discuss the electricity generation problem and how to cope with the huge demand for electrical-based technologies. We will address new paradigms for electromagnetic energy transmission, and alternatives to make energy available when needed and where needed. With these solutions, Net Zero energy alternatives will be available everywhere and can be a step forward in human development.


Sunday, May 19, 10:40-18:00

10:40 – 12:40 – Wireless Power Transmitter and Receiver Efficiency Optimization

During this talk, we will delve into the intricate realm of Wireless Power Transfer (WPT) transmitters and receivers, with a particular focus on addressing the challenge of efficiency. Efficiency stands as a pivotal concern in WPT systems, influencing their practical applicability across various domains. Our discussion will encompass an exploration of current efficiency limitations. Moreover, we will deliberate on innovative strategies and emerging technologies aimed at enhancing the efficiency of WPT systems. By collectively examining these issues and brainstorming potential solutions, we aim to foster a comprehensive understanding and pave the way for advancements in the field of wireless power transfer.

Prof. Nuno Borges Carvalho
Chair of Portugal URSI Commission A
Instituto de Telecomunicações - Universidade de Aveiro, Portugal

12:40-13:40 – Lunch Break

13:40 – 15:40 - High Efficiency Rectenna Theory and Technology for Far Field Wireless Power

For practical wireless power transfer (WPT) system, we need high efficiency rectenna, rectifying antenna. For wide beam WPT or an energy harvesting, we need the high efficiency rectenna in low input microwave power. On contrary, in narrow beam WPT, we need high power rectenna or rectenna array technology to receive focusd microwave power. The rectenna has interesting characteristics when we design it as combination of the antenna and the rectifying circuit with a diode. In this talk, I explain the basic theory of the rectenna and its novel technology for the practical far field WPT.

Prof. Naoki Shinohara
Professor, Kyoto University, Japan

15:40-16:00 – Break

16:00 – 18:00 - Harmonic Backscattering: a path towards energy-autonomous clutter-insensitive wireless sensing

This session will provide an overview of the current status of backscatter radios that rely on harmonic generation. We will start describing the basics of harmonic generation. Examples of simple zero-biased frequency doublers will be provided. Then, we will discuss approaches to achieve compact harmonic antenna systems. Solutions involving green materials such as cardboard will be provided. Finally, we will describe state-of-the-art sensing solutions based on harmonic transponders, including temperature sensors, rotational speed sensors, vibration sensors. We will highlight the pros and cons of each approach and we will sketch possible evolution scenarios.

Prof. Valentina Palazi
Perugia University, Perugia, Italy


Nuno Borges Carvalho was born in Luanda, Angola, in 1972. He received the Diploma and Ph.D. degrees in electronics and telecommunications engineering from the University of Aveiro, Aveiro, Portugal, in 1995 and 2000, respectively. He is currently a Full Professor and a Senior Research Scientist with the Institute of Telecommunications, University of Aveiro. He has coauthored Intermodulation in Microwave and Wireless Circuits (Artech House, 2003), Microwave and Wireless Measurement Techniques (Cambridge University Press, 2013), and White Space Communication Technologies (Cambridge University Press, 2014). He has been a reviewer and the author of over 200 papers in magazines and conferences. He is the Editor-in-Chief of the Wireless Power Transfer journal (Cambridge), an Associate Editor of IEEE Microwave Magazine, and an former Associate Editor of IEEE Transactions on Microwave Theory and Techniques and IET Microwaves Antennas and Propagation journal. He is the co-inventor of six patents. His main research interests include software-defined radio front-ends, wireless power transmission, nonlinear distortion analysis in microwave/wireless circuits and systems, and the measurement of nonlinear phenomena. He has recently been involved in the design of dedicated radios and systems for newly emerging wireless technologies. He is a member of the IEEE MTT ADCOM, the past Chair of the IEEE Portuguese Section, MTT-20 and MTT-11, and also belong to the technical committees, MTT-24, and MTT-26. He is also the Vice-Chair of the URSI Commission A (Metrology Group). He was a recipient of the 1995 University of Aveiro and the Portuguese Engineering Association Prize for the best 1995 student from the University of Aveiro, the 1998 Student Paper Competition (Third Place) of the IEEE Microwave Theory and Techniques Society (IEEE MTT-S) International Microwave Symposium (IMS), and the 2000 IEE Measurement Prize. He is a Distinguished Microwave Lecturer for the IEEE Microwave Theory and Techniques Society.


Naoki Shinohara received the B.E. degree in electronic engineering and the M.E. and Ph.D. (Eng.) degrees in electrical engineering from Kyoto University, Kyoto, Japan, in 1991, 1993, and 1996, respectively.,He has been a Research Associate with the Radio Atmospheric Science Center, Kyoto University, since 1996, where he has been an Associate Professor since 2001. He has been an Associate Professor with the Research Institute for Sustainable Humanosphere, Kyoto University, by recognizing the Radio Science Center for Space and Atmosphere, since 2004. Since 2010, he has been a Professor with the Research Institute for Sustainable Humanosphere, Kyoto University. He has been engaged in research on solar power stations/satellite and microwave power transmission systems.,Dr. Shinohara is currently a Lecturer of the IEEE Distinguish Microwave, a Vice Chair of the IEEE MTT-S Technical Committee 26 (Wireless Power Transfer and Conversion), a TPC Member of the IEEE MTT-S Kansai Chapter, an Advisory Committee Member of the IEEE Wireless Power Transfer Conference, an Executive Editor of the International Journal of Wireless Power Transfer (Cambridge Press), the Radio Science for URSI Japanese Committee Member, the Past Technical Committee Chair of the Institute of Electronics, Information and Communication Engineers (IEICE) Wireless Power Transfer, the Vice Chair of the Japan Society of Electromagnetic Wave Energy Applications, the Chair of the Wireless Power Transfer Consortium for Practical Applications (WiPoT), and the Chair of the Wireless Power Management Consortium (WPMc).


Valentina Palazzi received the M.S. degree in electrical engineering and the Ph.D. degree in industrial and information engineering from the University of Perugia, Italy, in 2014 and 2018, respectively.,In 2015, she was a Visiting Ph.D. Student with the Tyndall National Institute, Cork, Ireland; in 2016, she did a short-term scientific mission with the Centre Tecnològic de Telecomunicacions de Catalunya, Barcelona, Spain, sponsored by the cost action IC1301 “WiPE”; from December 2016 to April 2017, she was a student intern with the Agile Technologies for High- Performance Electromagnetic Novel Applications Research Group, School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA. Since 2019, she has been a Researcher with the High Frequency Electronics Laboratory, Department of Engineering, University of Perugia, Italy. She has co-authored more than 50 articles, and holds three patents. Her current research interests include wireless sensors, radar front ends, wireless power transfer technologies, beamfomring networks, additive manufacturing processes, and conformal electronics.,Dr. Palazzi is an elected member of the IEEE Microwave Theory and Technique Society (MTT-S) Administrative Committee. She is the past chair (term 2022-2023) of the IEEE MTT-S Technical Committee- 26 “RFID, Wireless Sensor and IoT”, and Early Career Representative of the URSI Commission D “Electronics and Photonics” of the International Union of Radio Science (URSI). She was a recipient of the First Place Award of the Student Design Competition on Wireless Energy Harvesting held at the 2016 IEEE MTT-S “International Microwave Symposium” (IMS), of the IEEE MTT-S Graduate Fellowship in 2017, of the 2017 MTT-S Prize - Italy Chapter Central and Southern Italy, of the URSI Young Scientist Best Paper Award confered at the 2019 URSI Italian National Meeting, of the Second Place at the 3 Minute Thesis Competition held at IMS 2021, and of the GAAS Young Scientist Recognition (URSI Commission D) confered at GASS 2021.