Michael of National Taiwan University

Metamaterials (MTMs) are synthetic electromagnetic materials possessing unique properties not found in natural materials. Their introduction has spurred the creation of innovative circuits with enhanced components. One notable metamaterial-based design is the composite right/left-handed transmission line (CRLH-TL) leaky-wave antennas (LWAs). These antennas offer continuous frequency-dependent beam scanning from backfire to endfire with a true broadside beam. They also ensure excellent impedance matching throughout their operational range, using a straightforward feeding mechanism. The CRLH LWAs’ ability to map frequency to space means unknown target locations can simply be pinpointed by analyzing the spectral components of the returning wave. This paves the way for real-time detection, with data acquisition speeds mainly determined by the signal source’s frequency sweep rate. The sensor’s field-of-view is also expanded thanks to the wide scanning angle of CRLH LWAs. Such features enable applications like swift 2-D beamforming, expansive real-time remote sensing, vital sign monitoring, motion detection, and microwave imaging. Additionally, applying spatiotemporal modulation to CRLH LWAs can generate harmonic waves and enhance physical layer security, promoting safer wireless communication.

Biography:

Dr. Chung-Tse Michael Wu’s research interests span applied electromagnetics, antennas, passive and active microwave and millimeter-wave components, MMIC, RF systems, and metamaterials. He earned his B.S. degree from National Taiwan University (NTU) in 2006, followed by his M.S. and Ph.D. degrees from the Department of Electrical Engineering at the University of California, Los Angeles (UCLA) in 2009 and 2014, respectively. From 2014 to 2017, he was an Assistant Professor in the ECE department at Wayne State University (WSU) in Detroit, Michigan. In 2017, he joined Rutgers University as an Assistant Professor and was promoted to tenured Associate Professor in 2022. Since 2024, he has been an Associate Professor with NTU.

Dr. Wu is a member of the Technical Committee for IEEE MTT-28 and MTT-4. He has received several prestigious awards, including the National Science Foundation (NSF) Faculty Early Career Development (CAREER) Award, the WSU College of Engineering Faculty Research Excellence Award in 2016, the Defense Advanced Research Projects Agency (DARPA) Young Faculty Award (YFA) in 2019, and the DARPA Director’s Fellowship Award in 2021. In 2022, he was also honored with the Board of Trustees Research Fellowship for Scholarly Excellence at Rutgers University. He is the Vice Chair for the joint AP/ED/MTT chapter of the IEEE Princeton Central Jersey Section. Currently, he serves as an Associate Editor for IEEE Microwave and Wireless Components Letters, the IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology, and IEEE Access.

Naoki

A Radiative Wireless Power Transfer (RWPT) is expanding not only in R&D in academia, but also in business and industry. On June 23, 2026, updated RWPT radio regulation at 920MHz was published in Japan. Addition to the indoor RWPT system, we can now use outdoor RWPT at 920MHz in Japan. For further RWPT business, beam forming technology is considered as one of key technologies to suppress the unexpected interference, and to keep safety of the radio wave exposure. In the near future, we can fly battery-less drones and transmit wireless power from space to ground with advanced beam forming technologies. In academia, there are a lot of excellent R&D results. However, we need low cost and simple beam forming antenna for industry. We, Kyoto University and ATR, started new R&D with the University of the Philippines Diliman, through the SATREPS program supported by JST and JICA in Japan in 2026. Aim of the SATREPS is to develop the both-side retrodirective beam forming antenna for demonstration of the narrow beam WPT in the Philippines. In this talk, the current status and future perspective of the R&D and business of the RWPT, as well as the ongoing SATREPS project between Japan and Philippines will be introduced.

Biography:

 Naoki Shinohara received the B.E. degree in electronic engineering, the M.E. and Ph.D (Eng.) degrees in electrical engineering from Kyoto University, Japan, in 1991, 1993 and 1996, respectively. He was a research associate in Kyoto University from 1996. From 2010, he has been a professor in Kyoto University. He has been engaged in research on Solar Power Station/Satellite and Microwave Power Transmission system. He is a Fellow of IEEE and URSI, IEEE MTT-S elected AdCom voting member (2022-2027), IEEE MTT-S Technical Committee 25 (Wireless Power Transfer and Conversion) former chair and member, IEEE MTT-S Standard Committee chair, IEEE MTT-S Broaden Participation Committee (BPC) member, IEEE MTT-S MGA (Member Geographic Activities) Region 10 regional coordinator, IEEE WPT Initiative member, IEEE Wireless Power Transfer Conference & Expo founder and Steering committee member, URSI commission D (Electronics and Photonics) former chair, the first chair and technical committee member on IEICE Wireless Power Transfer in Japan, Japan Society of Electromagnetic Wave Energy Applications former president and adviser, Space Solar Power Systems Society president, and was IEEE MTT-S Distinguish Microwave Lecturer (2016-18). He was the recipient of the 2025 IEEE Microwave Magazine Best Paper Award, the 2023 IEEE Journal of Microwaves Best Paper Award, the 2022 Award of Minister of Education, Culture, Sports, Science and Technology in Japan, and the 2023 IEICE Achievement Award in Japan, etc. His supervised students were the recipient of 100 awards from 2011 to 2025. He has been author of over 150 reviewed journal papers, over 130 keynotes and invited speakers in international conferences, and over 120 the other invited speakers including 55 DMLs. He has collaborated with totally over 150 companies for the WPT and microwave applications in 30 years. He is the co-inventor of 35 patents and 20 submitting patents. He has worked to harmonize academia and industry of the WPT. He organizes Wireless Power Transfer Consortium for Practical Applications (WiPoT), and Wireless Power Management Consortium (WPMc) in Japan as a chair from 2013 with over 40 companies to establish the WPT market and to encourage the WPT business. His books are “Wireless Power Transfer via Radiowaves” (ISTE Ltd. and John Wiley & Sons, Inc., 2014), “Recent Wireless Power Transfer Technologies Via Radio Waves (ed.)”, (River Publishers, 2018), “Far-Field Wireless Power Transfer and Energy Harvesting”, (Artech House, 2022), “Theory and Technology of Wireless Power Transfer: Inductive, Radio, Optical, and Supersonic Power Transfer” (CRC Press, 2024), and “Wireless Power Transfer: Theory, Technology, and Applications (2nd Edition) (ed.)” (IET, 2018 and 2014), and some English, Japanese, and Chinese translated text books of WPT.
Toward Battery-Less Intell