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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| WPT | 2019-03-08 09:00 |
Kyoto | Kyoto Univ. Uji Campus | Coupler Design Criterion Considering Maximum Transmission Efficiency by kQ Product and Element Power Loss of Matching Circuit Hikaru Kitaoka, Daiki Yaginuma, Ryoichi Baba, Takashi Ohira (TUT)  WPT2018-81 |
In the wireless power transmission system, efficiency improvement of the coupler is being studied for improving entire t... [more] | WPT2018-81 pp.89-93 |
| WPT, PEM (Joint) |
2018-11-19 13:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Numerical Electromagnetic Field Analysis of Wireless Power Transfer using 3D Spherical Transmitter and Spiral Receiver Coils Ryohei Muramatsu, Masashi Ohchi (CIT) WPT2018-52 |
In the wireless power transmission system, when the position of the receiver coil is hanged with respect to the transmit... [more] | WPT2018-52 pp.7-12 |
| EE, WPT, IEE-SPC | 2018-07-02 16:10 |
Hokkaido | Hokkaido University | [Tutorial Lecture]
Near Field kQ Product and Poincare Distance between Dipole Antennas Takashi Ohira, Naoki Sakai (Toyohashi Univ Tech) WPT2018-18 |
This paper lectures on twin dipole antennas from the wireless power transfer aspect. Since Friis formula is no longer ap... [more] | WPT2018-18 pp.49-52 |
| AP, WPT (Joint) |
2018-01-18 15:10 |
Nara | ATR | Revisit to Design Theory of Electrically Coupled Resonator WPT System Ikuo Awai (Ryutech) WPT2017-60 |
A new finding in an electrically coupled resonator WPT system is introduced contributing to its design. It is on the def... [more] | WPT2017-60 pp.27-30 |
| AP, WPT (Joint) |
2018-01-18 16:00 |
Nara | ATR | [Tutorial Lecture]
Key Points for Wireless Power Transfer System Design Satoshi Tsukamoto (TUT) AP2017-159 WPT2017-62 |
Wireless power transfer is highlighted as non-contact charging for electric vehicles. In the high-power circuit, not onl... [more] | AP2017-159 WPT2017-62 pp.47-52(AP), pp.35-40(WPT) |
| WPT (2nd) |
2017-12-09 - 2017-12-11 |
Overseas | National University of Singapore(AWPT2017) | Design of Capacitive Coupler for High Efficiency Wireless Power Transfer Under Fresh Water Yasumasa Naka, Kosuke Murai, Masaya Tamura (Toyohashi Tech.) |
This paper describes a design method of the capacitive coupler achieving the improvement in efficiency underwater wirele... [more] | |
| WPT (2nd) |
2017-12-09 - 2017-12-11 |
Overseas | National University of Singapore(AWPT2017) | Identification of kQ Product for Wireless Power Transfer System with Open End Coils Based on Input Impedance Measurement Katsuhiro Hata, Takehiro Imura, Yoichi Hori (The Univ. of Tokyo) |
Efficiency characteristics of wireless power transfer (WPT) via magnetic resonance coupling are determined by kQ product... [more] | |
| WPT, EMCJ (Joint) |
2017-11-21 13:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Design of coupler for high efficiency wireless power transfer under fresh water with electric coupling Yasumasa Naka, Kosuke Murai, Masaya Tamura (Toyohashi Univ. ot Tech.) WPT2017-49 |
This report describes a design method of the capacitive coupler achieving the high efficiency underwater wireless power ... [more] | WPT2017-49 pp.27-31 |
| AP, SAT, SANE (Joint) |
2017-07-27 14:00 |
Aichi | Nagoya Institute of Technology | kQ Product Simulation for Parallel Dipole Antenna Pair Masataka Mizuno, Naoki Sakai, Takashi Ohira (Toyohashi Univ. of Tech.) AP2017-56 |
The kQ product dominating the maximum value of the power transmission efficiency is an important performance evaluation ... [more] | AP2017-56 pp.59-62 |
| MW | 2017-05-19 13:00 |
Osaka | Osaka Univ. (Seminar Room1, Osaka Univ. Kaikan) | What Science-Minded Teenagers Learn from the Static kQ Theory Takashi Ohira (TUT) MW2017-18 |
This paper tries to stimulate teenagers with an enigma on dc power transfer. Power efficiency is derived in terms of loa... [more] | MW2017-18 pp.61-64 |
| WPT | 2017-03-06 14:50 |
Kyoto | Kyoto Univ. Uji Campus | A study on efficiency of 2x2 MIMO inductive power transfer system Tatsuki Ujihara, Duong Quang Thamg, Minoru Okada (naist) WPT2016-70 |
In this study， we investigate the transfer efficiency (RF-to-RF efficiency) for 2x2 MIMO IPT system with Cross-coupling．... [more] | WPT2016-70 pp.25-29 |
| AP, WPT (Joint) |
2017-01-19 09:00 |
Hiroshima | Hiroshima Institute of Technology | Corner Reflector Antenna Optimization in Regard to kQ Product Maximization Wataru Takahashi, Tatsuya Komukai, Tamami Maruyama (National Institute of Technology, Hakodate College), Naoki Sakai (TUT) WPT2016-42 |
To maximize kQ product, this paper designs and prototypes a corner reflector antenna which is used by a microwave power ... [more] | WPT2016-42 pp.1-4 |
| AP, WPT (Joint) |
2017-01-19 09:20 |
Hiroshima | Hiroshima Institute of Technology | Simplified Measuring Method of kQ Product for Wireless Power Transfer via Magnetic Resonance Coupling Katsuhiro Hata, Takehiro Imura, Yoichi Hori (The Univ. of Tokyo) WPT2016-43 |
An efficiency characteristics of wireless power transfer via magnetic resonance coupling is expressed by $kQ$ product, w... [more] | WPT2016-43 pp.5-10 |
| AP, WPT (Joint) |
2017-01-19 09:40 |
Hiroshima | Hiroshima Institute of Technology | Revisiting kQ-product Theory for Wireless Power Transfer
-- Derivation from ratio of dissipation to incident power -- Ikuo Awai (Ryutech) WPT2016-44 |
The maximum condition of power transfer efficiency for a linear reciprocal 4-terminal circuit is obtained directly from ... [more] | WPT2016-44 pp.11-16 |
| AP, WPT (Joint) |
2017-01-20 14:10 |
Hiroshima | Hiroshima Institute of Technology | [Invited Lecture]
kQ Product of 920 MHz Band Yagi Uda Antennas Pair Using 3D Printing Shotaro Ishino, Soichiro Etani (Furuno) AP2016-149 WPT2016-54 |
In this study, we fabricated and evaluated 920 MHz band Yagi Uda antennas. When the distance between the antennas is 360... [more] | AP2016-149 WPT2016-54 pp.115-119(AP), pp.69-73(WPT) |
| WPT | 2016-06-03 15:45 |
Tokyo | Tokyo University | Trigonometric Phasor View on Magnetically Coupled Resonators for Wireless Power Transfer Takashi Ohira (TUT) WPT2016-14 |
This paper explores how best to exploit a magnetic-resonance wireless power transfer system once given. We theoretically... [more] | WPT2016-14 pp.25-28 |
| MW, AP (Joint) |
2015-09-17 14:55 |
Tochigi | Oyama National College of Tech. | [Fellow Memorial Lecture]
Linear Passive Reciprocal Two-Port Systems as Viewed from kQ Product Perspective Takashi Ohira (Toyohashi Univ Tech) MW2015-92 |
Two-port systems are often evaluated in terms of S parameters. They well express the system's transfer function, but dep... [more] | MW2015-92 pp.29-30 |
| EE, WPT, IEE-SPC (Joint) [detail] |
2015-07-06 15:00 |
Kyoto | Study of Operating Frequency in a WPT System for Robot Fish in Aquarium Ryuji Ito, Tatsuya Hiraiwa, Toshio Ishizaki (Ryukioku Univ), Ikuo Awai (Ryutech Corp) WPT2015-38 |
We have been studying wireless power transfer for robot fish in an aquarium. Though we have chosen 1MHz for the operatin... [more] | WPT2015-38 pp.13-18 |
|
| MW | 2014-06-26 09:30 |
Aichi | Toyohashi Univ. of Tech. | Extended kQ product for two-port LCR networks Naoki Sakai, Kyohei Yamada, Takashi Ohira (Toyohashi Univ. of Tech.) MW2014-43 |
This paper calculates extended $kQ$ product of various 2-port network topologies consisting of lumped-constant resistors... [more] | MW2014-43 pp.7-11 |
| MW, SCE, WPT | 2014-04-17 14:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Unified Formula on Maximum Available Efficiency for RF Power Transfer Systems
-- Lucid Elaboration Even Before Learning a Word of Coupled Resonance -- Takashi Ohira (Toyohashi Univ. Tech.) WPT2014-5 SCE2014-5 MW2014-5 |
Many papers and books were published on the topic of wireless power transfer. They conclude that power transfer efficien... [more] | WPT2014-5 SCE2014-5 MW2014-5 pp.23-26 |
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