Program Overview

At a Glance

Keynote Session 1 [⬆]

Speaker: Prof. Naoki Shinohara, Ph.D.
Title: Future Perspective of the Radiative Wireless Power Transfer and Collaboration between Japan and Philippines

Abstract: 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.

Keynote Session 2 [⬆]

Speaker: TBD
Title: TBD

Abstract: TBD

Tutorial Session [⬆]

Speaker: Prof. Emeritus Takashi Ohira, Ph.D.
Title: Interactive Chalkboard Lesson on Resonance and Group Theory

Oral Session 1 [⬆]

September 10, 1:00 pm to 2:40 pm

• (1:00 pm – 1:20 pm) Retrodirective System based on the Analog Frequency Pilot Signal
  Authors: Bo YANG (Xidian University, China), Hengming HSU, Keiichiri KASHIMURA, Naoki SHINOHARA
  
• (1:20 pm – 1:40 pm) Experimental Feasibility Study of 920-MHz Low-Power Radiative WPT for Smart Pallets in Truck-Based Logistics
  Authors: Naoki HASEGAWA (SoftBank, Japan), Yuki TANAKA, Takashi HIRAKAWA, Yuta NAKAMOTO, Norioki WATANABE, Hiroshi MURASATO
  
• (1:40 pm – 2:00 pm) Development of a Tracking Device for 920 MHz Band Low-Power Radiative WPT
  Authors: Yuki TANAKA (Panasonic Holdings Corporation, Japan), Hikaru HAMASE, Takuma IKEDA, Naoki HASEGAWA
  
• (2:00 pm – 2:20 pm) Experimental Testbeds for Beam-Convergence Verification in Both-Sides Retrodirective Wireless Power Transfer
  Authors: Takayuki MATSUMURO (Advanced Telecommunications Research Institute International, Japan), Satoru SHIMUZU, Susumu ANO, Koki HAMAJIMA, Akio WAKEJIMA, Takaki ISHIKAWA
  
• (2:20 pm – 2:40 pm) The POWER BEAM Project: Developing Space-Based Solar Power Capability in the Philippines
  Authors: Charleston Dale AMBATALI (University of the Philippines, Philippines), Allan Jr. MESA

Poster Session 1 [⬆]

September 10, 3:00 pm to 4:30 pm

• Data Communication Through the Multi-Coil Magnetic Resonance WPT Hardware
  • Rommel MASILUNGAN, University of the Philippines Diliman, Philippines
    Co-Author/s: Charleston Dale AMBATALI
• Design of a DC-DC Converter Operating Over a Wide Rectenna Output Power Range and Load Range
  • Tomoki YOSHIDA, Research Institute for Sustainable Humanosphere, Kyoto University, Japan
    Co-Author/s: Naoki SHINOHARA, Tomohiko MITANI, Jianwei JING, Ryota KURI, Takayuki OKADA
• Development of a WPT-Powered Assistive Wearable with ML-Based Gesture Communication through IoT
  • Jan Camille ARAO-ARAO, University of San Carlos, Philippines
    Co-Author/s: Roland DETICIO, Ellen Agnes ZAFRA, Alberto BAÑACIA
• A Fundamental Study on the Characteristics of the Receiver Coil under Road Surface Water in Dynamic Wireless Power Transfer
  • Yuto KAWAMURA, Imura Laboratory, Tokyo University of Science, Japan
    Co-Author/s: Takehiro IMURA
• Design and Development of a Wireless Power Transfer-Assisted IoT Flood Monitoring System for Disaster-Resilient Communication
  • Jan Kyle DATAN, University of San Carlos, Philippines
    Co-Author/s: Ric Allen LASPIÑAS, Alberto BAÑACIA
• Preliminary Evaluation of Dynamic Wireless Power Transfer Using a Prototype Self-Resonant Multilayer Edgewise Receiver Coil
  • Hayato NISHIHATA, Imura Laboratory, Tokyo University of Science, Japan
    Co-Author/s: Co-Author/s: Takehiro IMURA, Koji SHIGEUCHI
• Analysis of meander line defect ground structure and extended fence strips as decoupling network elements for planar MIMO-WPT arrays
  • Allan MESA Jr., University of the Philippines Diliman, Philippines
    Co-Author/s: Charleston Dale AMBATALI
• Proposal of Stainless Steel Reinforced Concrete Pavement for Improving Coil Characteristics in Dynamic Wireless Power Transfer
  • Ryuma ONISHI, Imura Laboratory, Tokyo University of Science, Japan
    Co-Author/s: Takehiro IMURA, Dai CHIMURA, Megumu KUNIGO, Tetsunori TANIGUCHI
• Machine Learning-Based Optimization of Wireless Power Transfer Efficiency
  • Andrei COSTANILLA, University of San Carlos, Philippines
    Co-Author/s: Erl Aldre GEQUILLO, Agnes Ellen ZAFRA, Alberto BAÑACIA
• Evaluation of Performance Variability in Surface-Mounted Coils for Dynamic Wireless Power Transfer
  • Daiki SASAKI, Imura Laboratory, Tokyo University of Science, Japan
    Co-Author/s: Naoya SASA, Takehiro IMURA
• Development of a Waveguide Slot Array Antenna with Uniform near-Field Distribution for Microwave Heating and WPT Applications
  • Akira KITASHIRO, Research Institute for Sustainable Humanosphere, Kyoto University, Japan
    Co-Author/s: Tomohiko MITANI, Naoki SHINOHARA, Bo YANG
• Design and Development of  a High-Efficiency Resonant Wireless Power Transfer System for UAV Ground Charging
  • Ely John AMISTA, University of San Carlos, Philippines
    Co-Author/s: Shane Kelmer PLANIA, Alberto BAÑACIA
• Far-Field RF Wireless Power Transfer for Low-Power Elevator Devices
  • Kacey ALMIRANTE, University of San Carlos, Philippines
    Co-Author/s: Giles Vincent BROÑOLA, Alberto BAÑACIA

Poster Session 2 [⬆]

September 11, 1:00 pm to 2:30 pm

• Improving Microwave Wall Transmission Efficiency through Integrated Spatial Transmission and Resonant Coupling for Wireless Power Transfer
  • Yano YUKI, Research Institute for Sustainable Humanosphere, Kyoto University, Japan
    Co-Author/s: Naoki SHINOHARA, Tomohiko MITANI
• Power Harmonics Mitigation in LED Lighting Systems: An RC Filter and Node-RED Approach
  • Paul John INFANTE, University of San Carlos, Philippines
    Co-Author/s: Edward QUERIKIOL, Jeomar COSMO, Roy PELIAS
• A 24GHz band GaAs 2-watt rectenna
  • Asahi SAITO, Kanagawa Institute of Technology, Japan
    Co-Author/s: Nobuyori YAEO, Ryosuke SATO, Keisuke NOGUCHI, Naoki SAKAI, Kenji ITOH
• IoT-Enabled Wireless Power Monitoring and Control System
  • Kate Hyacinth FOS, University of San Carlos, Philippines
    Co-Author/s: Kacy Margareth FOS, Chaka FUSILERO, Alberto BAÑACIA
• 24 GHz band 2-watt polarization-multiplexed rectenna
  • Keiji NISHIKAWA, Kanagawa Institute of Technology, Japan
    Co-Author/s: Ryosuke SATO, Naoki SAKAI, Kenji ITOH
• H_2 and H_infinity Control Design for the Both-Sides Retrodirective Wireless Power Transfer System
  • Joselito RAMENTO Jr., University of the Philippines Diliman, Philippines
    Co-Author/s: Charleston Dale AMBATALI
• Study of a Cubic Receiving Antenna for Indoor Wireless Power Transfer
  • Ryota KUJI, Research Institute for Sustainable Humanosphere, Kyoto University, Japan
    Co-Author/s: Naoki SHINOHARA, Tomoki YOSHIDA, Tomohiko MITANI
• Numerical Analysis of Wireless Power Transfer Based on an Extended AC Resistance Model of Litz Wire Coil
  • Yutaro WATANABE, Dept. of Electrical and Electronic Engineering, Tokai University, Japan
    Co-Author/s: Mamiko INAMORI, Ruey Seong CHONG
• Analytical Design of RF–DC Converter with Transmission-Line Resonator Based on Diode Large-Signal Parameters
  • Masaya ISHIBASHI, Saga University, Japan
    Co-Author/s: Eisuke NISHIYAMA, Teruo FUJIWARA, Atushi KISHIMOTO, Ichihiko TOYODA
• Efficiency Improvement of Wireless Power Transfer Using Coil Geometry Optimization
  • Franz Mari ARIZALA, University of San Carlos, Philippines
    Co-Author/s: Franzelle ARJON, Alberto BAÑACIA
• Simulation Study on Interference of Power Transmission Microwaves to a Communication Antenna for a Satellite Experiment
  • Shun YOSHINARI, Research Institute for Sustainable Humanosphere, Kyoto University, Japan
    Co-Author/s: Tomohiko MITANI, Naoki SHINOHARA
• Design of a Low-Cost Inductive Wireless Charging System for Mobile Devices
  • James Jay ALINSONORIN, University of San Carlos, Philippines
    Co-Author/s: Clim BELARDO, Lucky STOJAKOBIK, Chaka FUSILERO, Alberto BAÑACIA
• Transient Analysis of the Minimum-Arrival-Time Path in Underwater–Air Wireless Transmission
  • Hayato SHIRAISHI, Hiroshima Institute of Technology, Japan
    Co-Author/s: Tamami MARUYAMA, Manabu OMIYA, Noriharu SUEMATSU
• Design and Optimization of a Resonant Inductive Wireless Power Transfer System
  • Richmond CENIZA, University of San Carlos, Philippines
    Co-Author/s: Alberto BAÑACIA

Oral Session 2 [⬆]

September 11, 2:30 pm to 3:50 pm

• (2:30 pm – 2:50 pm) A study of multi-band matching circuit design using multiple open stubs for rectenna
  Authors: Yasunori SUZUKI (Okayama Prefectural University, Japan), Kiyotaka KOMOKU, Jun FURUTA, Nobuyuki ITOH
  
• (2:50 pm – 3:10 pm) Development of a 5.7GHz Microwave Wireless Power Transfer System for Unmanned Aerial Vehicles Using a Magnetron
  Authors: Yukihiro HOMMA (Mitsubishi Electric Corporation, Japan), Kei OHARA, Hiroyuki MIZUTANI, Tetsuya KATASE, Tomohiko MITANI, Naoki SHINOHARA
  
• (3:10 pm – 3:30 pm) A Study on Wireless Power Transfer Using an Artificial Dielectric Lens in a Lossy Dielectric Medium
  Authors: Tamami MARUYAMA (Hiroshima Institute of Technology, Japan), Haruki ABE, Hayato SHIRAISHI, Ikuo AWAI
  
• (3:30 pm – 3:50 pm) Integrated 5G Communication and Wireless Power Transfer Using an Open-Source gNB
  Authors: Yuta NAKAMOTO (SoftBank Corp., Japan), Naoki HASEGAWA, Takashi HIRAKAWA, Yuki TAKAGI