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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 |
| WPT | 2021-03-05 14:50 |
Online | Online | Novel simulations and theoretical analysis of single shunt rectifiers Takashi Hirakawa, Naoki Shinohara (Kyoto Univ.) WPT2020-50 |
[more] | WPT2020-50 pp.83-87 |
| WPT | 2020-03-06 09:25 |
Kyoto | (Cancelled but technical report was issued) |
Diode Modeling Method for Design of Rectifiers with Microwave Takashi Hirakawa, Naoki Shinohara (Kyoto Univ.) WPT2019-58 |
Microwave wireless power transmission enables new applications. Although high power is used for the applications, the RF... [more] | WPT2019-58 pp.5-8 |
| WPT (2nd) |
2019-10-31 - 2019-11-02 |
Overseas | Xidian University | Diode Modeling for the Design of Rectifiers with Microwave Input Takashi Hirakawa (Kyoto Univ.), Zhang hao (NUS), Naoki Shinohara (Kyoto Univ.), Yong Xin Guo (NUS) |
We focused on the modeling method for the design of single-shunt rectifiers. In this case, only S11 is necessity for the... [more] | |
| WPT | 2019-03-08 14:55 |
Kyoto | Kyoto Univ. Uji Campus | Study on the diode modeling of GaN schottky barrier diodes for designing the rectifiers with large power input Takashi Hirakawa, Naoki Shinohara (Kyoto Univ.) WPT2018-91 |
(To be available after the conference date) [more] | WPT2018-91 pp.137-140 |
| WPT, EE (Joint) |
2018-10-04 15:30 |
Kyoto | Kyoto Univ. Uji Campus | Study on the diode modeling of GaN schottky barrier diodes for designing the rectifiers with large power input Takashi Hirakawa, Naoki Shinohara (Kyoto Univ.) WPT2018-47 |
[more] | WPT2018-47 pp.97-100 |
| WPT | 2018-03-02 15:30 |
Kyoto | Kyoto Univ. Uji Campus | Improvement of the RF-DC conversion efficiency of rectifiers with pulse modulated input Takashi Hirakawa, Naoki Shinohara (Kyoto Univ.) WPT2017-75 |
Nowadays, the Internet of things (IoT) is attracting our interest. IoT requires a flexible configuration of sensor netwo... [more] | WPT2017-75 pp.39-43 |
| MW (2nd) |
2017-06-14 - 2017-06-16 |
Overseas | KMUTT, Bangkok, Thailand | Microwave Rectifier with Intermittent Input Takashi Hirakawa, Naoki Shinohara (Kyoto Univ.) |
For the practical realization of Microwave power transfer (MPT) , high-efficiency rectifiers are required. In this paper... [more] | |
| WPT | 2017-03-07 13:50 |
Kyoto | Kyoto Univ. Uji Campus | Analysis of the Output Voltage Wave of the Rectifier with Intermittent Input Takashi Hirakawa, Naoki Shinohara (Kyoto Univ.) WPT2016-80 |
Nowadays, Wireless power transfer (WPT) is attracting our interest. Using WPT, we can charge our terminals in spite of i... [more] | WPT2016-80 pp.81-85 |
| MW | 2016-12-16 15:40 |
Kanagawa | National Defense Academy | Study on the Operation of a Rectifier with Pulse Modulated Input Takashi Hirakawa, Naoki Shinohara (Kyoto Univ.) MW2016-168 |
Nowadays, Wireless power transfer (WPT) is attracting our interest. Using WPT, we can charge our terminals without wir... [more] |
MW2016-168 pp.205-209 |
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