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Workshop Program

Nov. 26 (Wed)

WE1A  Opening Ceremony

Nov. 26 (Wed)  10:00-10:10   Room 1+2 (Annex Hall F201+F202)
Welcome Message from the Steering Committee Chair
Kensuke Okubo (Okayama Prefectural Univ.)

WE1A  Keynote Address 1

Nov. 26 (Wed)  10:15-11:05   Room 1+2 (Annex Hall F201+F202)
Trends in Radio Frequency Policies in Japan
Hiroyuki Ogawa (Director of Radio Policy Division, Radio Department, Telecommunications Bureau, Ministry of Internal Affairs and Communications)
promote the introduction of new technologies and the development of new businesses through effective radio wave utilization.
Against the background of rapidly increasing demand for the use of radio waves, this lecture introduces the latest trends in radio frequency policies, including the rollout of new systems promoting the more efficient use of radio waves.


WE1A  Keynote Address 2

Nov. 26 (Wed)  11:10-12:00   Room 1+2 (Annex Hall F201+F202)
Toward the Future of Wireless Access in the IOWN Era
Yasushi Takatori (Access Network Service Systems Lab., NTT, Inc., Nanzan Univ.)
In future wireless access systems, wireless communication is expected to play a critical role not only in providing Internet connectivity for smartphones but also in accelerating digital transformation across diverse industries. In the IOWN (Innovative Optical and Wireless Network) era, direct connectivity between remote locations will become a reality, enabling new value creation through seamless interactions across physical spaces.
This talk will introduce new perspectives on the evolution of wireless access technologies in preparation for the fully realized IOWN era.

WE1B  Tutorial

Nov. 26 (Wed)  14:00-16:00   Room 1+2 (Annex Hall F201+F202)
Let's Re-Learn the Fundamentals of Mobile Communications !
Organizer / Chair :  Koji Yamanaka (Mitsubishi Electric Corp.)
In our country, the fifth-generation mobile communication (5G) services began in 2020, and research and development towards the anticipated launch of sixth generation (6G) services around 2030 is actively undertaken. Many engineers and microwave professionals are involved in research and development, or business development related to 5G or 6G, but how well do they truly understand mobile communications? While some may have solid understanding of their specific technical fields, many may not grasp its overall picture. At this pivotal moment, when further advancements in 5G and accelerated research and development towards 6G are expected, we are providing an opportunity to revisit the fundamentals of mobile communications.
We have invited Dr. Fujioka, who served as CTO at Ericsson Japan and is writing many articles, including "Mobile Technology Landscapes" series in Keitai Watch, to introduce the essential concepts that professionals in mobile communications should at least understand. By participating in this foundational course, we hope that attendees will reflect on what they do and do not understand, thereby enhancing their fundamental knowledge of mobile communications.

Keyword : Mobile Communications, Base Transceiver Station, 5G,6G,Core Network
1 Fundamentals for Mobile Communications
Masanobu Fujioka (XGMF)

WE3B  Workshop

Nov. 26 (Wed)  14:00-16:00   Room 3 (Annex Hall F203)
Advanced Device Technologies for Terahertz Communications
Organizer / Chair :  Akifumi Kasamatsu (NICT)
The utilization of frequencies in the terahertz band is expected to realize the high data-rate radio communications. Various R & D activities are being carried out, however, there are still many problems remaining in device technology. In particular, enhancement of communication distance, realization of the low noise signal sources and the power amplifiers for ultra-high frequencies, and reduction of power consumption are major topics to be solved.
In this session, we will introduce the state-of-the-art of device development activities by inviting speakers who are the top investigators in these fields.

Keyword : Terahertz, Phased Array, Integrated Optical Frequency Combs, Sub-Terahertz Power Amplifier
1 CMOS Design Techniques for Highly Integrated Phased Arrays in the 300-GHz Band
Minoru Fujishima (Hiroshima Univ.)
2 Exploring Terahertz Photonics Enabled by Integrated Optical Frequency Combs
Tomohiro Tetsumoto (NICT)
3 Compound Semiconductor-Based Electronic Devices for Sub-THz Power Amplifiers
Toshihiro Ohki (Fujitsu Ltd.)

WE4B  Workshop

Nov. 26 (Wed)  14:00-16:00   Room 4 (Annex Hall F204)
Frontiers of RF-Beam Wireless Power Transfer System (Institutionalization, Productization and R&D)
Organizers :  Hiroshi Katsunaga (Marubun Corp.)
Chair :  Yoshiyuki Fujino (Toyo Univ.)
Three years have passed since the 2022 revision of the ministerial ordinance facilitated the practical application of microwave-based wireless power transfer systems (RF-Beam WPT). Amidst growing anticipation for this technology as a method for powering Internet of Things (IoT) devices, the commercialization and market deployment of RF-Beam WPT are progressing. Consequently, research and development (R&D) efforts are being actively pursued across various sectors aiming for the further advancement of this technology.
This session will provide an overview of the latest trends in forthcoming regulatory developments and business expansion strategies. It will highlight the leading edge of corporate initiatives focused on product development and societal implementation considering these factors.

Keyword : Microwave, WPT, Wireless Power Transfer, Wireless Power Transmission, RF WPT, RF WPT, RF-Beam WPT, Institutionalization, IoT, Drone, SSPS, Space Solar Power System
1 Institutionalization of the Beam-WPT System in Japan and Research and Development for Institutionalization
Noboru Sekino (DKK Co., Ltd.)
2 Driving Global Adoption of the 920MHz WPT System
Jun Tsumochi (Aeterlink Corp.), Yuki Tanaka (Panasonic Holdings Corp.)
3 Advanced use of Off-Grid IoT by Wireless Power Transmission
Minoru Furukawa (Space Power Technologies Inc.)
4 Infinite Possibilities of Radiative Wireless Power Transfer — From Drone to Solar Power Satellite —
Naoki Shinohara (Kyoto Univ.)

WE5B  Workshop

Nov. 26 (Wed)  14:00-16:00   Room 5 (Annex Hall F205)
How Can AI Be Utilized to EMC Design and Countermeasures? — Possibilities in Noise Prediction and Design Support —
Organizer / Chair :  Sho Muroga (Tohoku Univ.)
The adoption of AI technologies is rapidly progressing in the field of electromagnetic compatibility (EMC). Applications are extending across the entire design and evaluation process, including noise source identification, estimation of magnetic near-field distributions, accurate prediction of propagation paths, and optimization of countermeasure components such as absorbers and shielding structures.
This session organizes the application of machine learning technologies in EMC design from two perspectives: noise prediction and design optimization. It introduces the latest case studies on EMC design and evaluation support using machine learning and optimization algorithms. From both academic and industrial viewpoints, the session explores the potential and challenges of AI in driving innovation in EMC design and countermeasure technologies.

Keyword : Electromagnetic Compatibility (EMC), Artificial Intelligence / Machine Learning, Noise Source Estimation, Radiated Emission Prediction, Shield Design, Material Design
1 Estimation of Noise Sources on Printed Circuit Boards using Machine Learning of Magnetic Near-Field Information
Motoshi Tanaka , Hidefumi Kamozawa (Akita Univ.)
2 Machine Learning-Based Prediction of Radiated Emissions in Automotive Electronics
Hiroshi Suenaga (Panasonic Industry Co., Ltd.)
3 AI-Aided Shield Design — Optimal Design of FSS using Topology Optimization with NGnet —
Yoshiki Kayano (The Univ. of Electro-Communications)
4 Exploring the Potential of AI for Material Design Support of Electromagnetic Absorbers
Sho Muroga (Tohoku Univ.)

WE6B  Workshop

Nov. 26 (Wed)  14:00-16:00   Room 6 (Annex Hall F206)
Organizers :  Takuji Arima (Tokyo Univ. of Agriculture and Tech.)
Chair :   ()

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