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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP, WPT (Joint) |
2024-01-17 14:25 |
Niigata | Tokimate, Niigata University (Primary: On-site, Secondary: Online) |
2.45 GHz High-Efficiency Power Amplifier for Integration and Cooperation of Telecommunication and Wireless Power Transfer Yuki Takagi, Yuta Nakamoto, Takashi Hirakawa, Yoshichika Ohta, Naoki Hasegawa (SB)  WPT2023-30 |
In this paper, we present a transmitter configuration of wireless devices that is optimized for both information transmi... [more] | WPT2023-30 pp.1-5 |
| WPT | 2023-06-30 13:40 |
Tokyo | (Primary: On-site, Secondary: Online) |
[Invited Talk]
Study on Integration and Cooperation of Telecommunication and Wireless Power Transfer Yuta Nakamoto, Naoki Hasegawa, Takashi Hirakawa, Yoshichika Ohta (SoftBank Corp.) WPT2023-10 |
The IoT business has been developing rapidly in recent years, and IoT devices are expected to become more widespread in ... [more] | WPT2023-10 p.2 |
| WPT | 2023-03-16 15:15 |
Kyoto | Kyoto-Univ. (Uji campus) (Primary: On-site, Secondary: Online) |
Experimental Evaluation on Phase Error Correction Method of Phased Array Antenna for Power Transmission Yoko Segami, Toshio Ishizaki (Ryukoku Univ.), Takayuki Matsumuro (ATR), Naoki Hasegawa, Yuta Nakamoto, Takashi Hirakawa (Softbank) WPT2022-38 |
The purpose of this research is to develop a phase error correction method to realize a phased array antenna for power t... [more] | WPT2022-38 pp.41-46 |
| WPT (2nd) |
2022-12-05 - 2022-12-06 |
Kyoto | Uji Obaku Plaza Kihada Hall, Uji Campus, Kyoto University (Primary: On-site, Secondary: Online) |
Study on Phase Error Correction Method of Phased Array Antenna for Power Transmission Yoko Segami, Toshio Ishizaki (Ryukoku Univ.), Takayuki Matsumuro (ATR), Naoki Hasegawa, Yuta Nakamoto, Takashi Hirakawa (SB) |
The purpose of this study is to investigate a calibration method that can easily perform beamforming for large-scale arr... [more] | |
| WPT (2nd) |
2022-12-05 - 2022-12-06 |
Kyoto | Uji Obaku Plaza Kihada Hall, Uji Campus, Kyoto University (Primary: On-site, Secondary: Online) |
Experiment of wireless power transmission using millimeter-wave rectenna with modulated signal input Yuta Nakamoto, Naoki Hasegawa, Takashi Hirakawa, Yoshichika Ohta (SoftBank Corp.), Naoki Sakai, Tsukasa Hirai, Kenji Itoh (KIT) |
This work focuses on the wireless power transfer (WPT) compatible base station for IoT sensors. A technique to add WPT ... [more] |
|
| EE, WPT (Joint) |
2022-10-06 13:55 |
Osaka | (Primary: On-site, Secondary: Online) |
28 GHz band wireless power transfer experiments with a GaAs rectenna MMIC with an inductive high impedance patch antenna Tsukasa Hirai, Takumi Itoh, Yuya Hirose, Naoki Sakai, Keisuke Noguchi, Kenji Itoh (Kanazawa IT), Naoki Hasegawa, Takashi Hirakawa, Yuta Nakamoto, Yoshichika Ohta (SoftBank) WPT2022-22 |
As one of additional functions in the beyond-5th generation (B5G) mobile communication system, the wireless power transf... [more] | WPT2022-22 pp.7-10 |
| NS, SR, RCS, SeMI, RCC (Joint) |
2022-07-14 09:40 |
Ishikawa | The Kanazawa Theatre + Online (Primary: On-site, Secondary: Online) |
[Invited Lecture]
Study on Integration of Wireless Power Transfer to Data Communication for Full-Wireless Society Naoki Hasegawa (SB) RCC2022-25 NS2022-38 RCS2022-79 SR2022-25 SeMI2022-29 |
In Society 5.0, an explosive increase in IoT and sensors is expected. In this work, we discuss a fusion between data c... [more] |
RCC2022-25 NS2022-38 RCS2022-79 SR2022-25 SeMI2022-29 pp.37-42(RCC), pp.60-65(NS), pp.55-60(RCS), pp.25-30(SR), pp.47-52(SeMI) |
| WPT | 2021-03-05 11:35 |
Online | Online | Small-Size Rectenna Drone and Magnetron Transmitter Naoki Hasegawa (SB), Teruo Fujiwara (Sho-Engineering), Yuta Nakamoto, Yoshichika Ohta (SB) WPT2020-46 |
This work discusses the microwave-power transfer (MPT) to a small done for the first step of research program on wirele... [more] |
WPT2020-46 pp.62-66 |
| WPT | 2020-03-06 15:50 |
Kyoto | (Cancelled but technical report was issued) |
A Study on Microwave Power Transfer to Rectangular Antenna for Stratospheric Platform Yuta Nakamoto, Naoki Shinohara (Kyoto Univ.), Naoki Hasegawa, Yoshichika Ohta (Softbank Corp.) WPT2019-69 |
The stratosphere platform is attracting attention as a new communication platform for communication area expansion and d... [more] | WPT2019-69 pp.61-66 |
| MW | 2019-11-14 16:00 |
Okinawa | Minami Daido Villa. Tamokuteki Koryu Center | High Efficiency Doherty Amplifier Using T-Shaped Stabs with Spurius Suppression and Impedance Conversion Function Yuki Takagi, Naoki Hasegawa, Yoshichika Ota (SB), Ryo Ishikawa, Kazuhiko Honjo (UEC) MW2019-107 |
In recent years, various types of wireless stations such as a base station used on quasi-millimeter wave band have been ... [more] | MW2019-107 pp.41-46 |
| AP | 2019-05-17 09:55 |
Hyogo | Kanpo-no-yado Arima (Arima Onsen, Hyogo) | Simulation for Traveling-Wave-Type Phased-Array Antenna with Distribution of Circuit Phase Error for Microwave Power Transfer Naoki Hasegawa, Yuki Takagi, Yoshichika Ohta (SB) AP2019-7 |
The traveling-wave feed circuit for phased-array antenna contributes to reduce phase control systems. In this feed circ... [more] |
AP2019-7 pp.35-39 |
| NC, MBE (Joint) |
2019-03-05 11:10 |
Tokyo | University of Electro Communications | MBE2018-98 |
[more] | MBE2018-98 pp.59-64 |
| MBE, NC (Joint) |
2018-11-22 11:10 |
Kyoto | MBE2018-40 |
[more] | MBE2018-40 pp.21-24 |
|
| MBE, NC (Joint) |
2018-03-13 15:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | MBE2017-88 |
[more] | MBE2017-88 pp.45-49 |
| WPT | 2018-03-03 13:40 |
Kyoto | Kyoto Univ. Uji Campus | Sidelobe Reduction Method Based on Active Array Antenna Naoki Hasegawa, Naoki Shinohara (Kyoto Univ.) WPT2017-84 |
[more] | WPT2017-84 pp.85-88 |
| WPT | 2017-03-06 10:55 |
Kyoto | Kyoto Univ. Uji Campus | Design of Active Antenna with High Power GaN HEMT Naoki Hasegawa, Naoki Shinohara (Kyoto Univ.) WPT2016-66 |
[more] | WPT2016-66 pp.7-10 |
| MW (2nd) |
2015-08-06 - 2015-08-08 |
Overseas | Chulalongkorn Univ., Bangkok, Thailand | [Poster Presentation]
Dual-band Dual-pole Antenna for compatibility of MPT with communication Naoki Hasegawa (Kyoto Univ), Hyeonjae Ju (The Univ. of Tokyo), Satoshi Yoshida (Kagoshima Univ.), Akihira Miyachi, Makoto Matsunoshita (ISAS/JAXA), Kenjiro Nishikawa (Kagoshima Univ.), Shigeo Kawasaki (ISAS/JAXA) |
In this paper, a proto-type of dual-band dual-pole antenna is demonstrated for compatibility of MPT with the X-band comm... [more] | |
| WPT | 2015-03-24 13:55 |
Kyoto | Kyoto Univ. Uji Campus | System Evaluation of a Wireless Health Monitoring System Powered by Microwave Power Transmission in a Reusable Vehicle Test Satoshi Yoshida (JAXA), Naoki Hasegawa (Kyoto Univ.), Takumasa Noji (TMU), Tomoki Kaneko (Nihon Univ.), Hyeonjae Ju (Tokyo Univ.), Chisaki Maekawa (ARS), Hiroyuki Yamazawa (CHINO), Ikuko Urushibara, Hikaru Sato (ARS), Shigeo Kawasaki (JAXA) WPT2014-95 |
In this paper, we evaluate system feasibility of the wireless sensor network system powerd by the microwave power trans... [more] |
WPT2014-95 pp.11-16 |
| MW, ED | 2015-01-15 15:45 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | 920MHz Band Wireless Sensor Network System with Microwave Power Transmission System Operating at 5.8 GHz Satoshi Yoshida (JAXA), Naoki Hasegawa (Kyoto Univ.), Takumasa Noji (TMU), Tomoki Kaneko (Nihon Univ.), Hyeonjae Ju (Univ. of Tokyo), Chisaki Maekawa (ARS), Hiroyuki Yamazawa (CHINO), Ikuko Urushibara, Hikaru Sato (ARS), Shigeo Kawasaki (JAXA) ED2014-121 MW2014-185 |
[more] | ED2014-121 MW2014-185 pp.25-30 |
| MW (2nd) |
2014-11-26 - 2014-11-28 |
Overseas | King Mongkut's Institute of Technology Ladkrabang (KMITL), Bangkok | Fundamental Experiment of S-band Low Noise Amplifier and Dielectric Microcalorimeter for X-ray Detection System Takumasa Noji (Tokyo Metropolitan Univ.), Akihira Miyachi, Takahiro Kikuchi, Ju Hyeonjae, Naoki Hasegawa, Satoshi Yoshida, Noriko Y. Yamasaki, Kazuhisa Mitsuda (JAXA), Takaya Ohashi (Tokyo Metropolitan Univ.), Shigeo Kawasaki (JAXA) |
In this paper, we demonstrate the result of combining a low noise amplifier (LNA) and a dielectric microcalorimeter (DMC... [more] | |
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