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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 13 of 13  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
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)
 [more]
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
 Results 1 - 13 of 13  /   
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