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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| 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 |
| MW | 2017-11-10 14:40 |
Okinawa | Miyakojima Marin Terminal Bldg. | Comprehensive evaluation of several spiral resonators with electric field confinement Tatsuya Hiraiwa, Toshio Ishizaki (Ryukoku Univ), Ikuo Awai (Ryutech) MW2017-141 |
The working principle, fabrication method, electric field confinement capability, unloaded Q property and susceptibility... [more] | MW2017-141 pp.161-166 |
| EE, WPT, IEE-SPC [detail] | 2017-07-27 09:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Invited Lecture]
6.78-MHz Current Doubler Rectifier with High-Q Inductor Kyohei Yamada (TUT) EE2017-10 WPT2017-15 |
This technical report talks about prototyping of a 6.78-MHz current doubler rectifier in which an inductor with high unl... [more] | EE2017-10 WPT2017-15 pp.1-4 |
| MW | 2017-06-23 12:10 |
Aichi | A-101, Wing-A, Toyohashi University of Technology | Quadruple-mode cavity resonator aimed at compactness and high Q factor Takuma Nagao, Atsushi Funayama, Masaya Tamura (TUT) MW2017-30 |
A multimode resonator is one of the promising solutions to downsize the base station filter. However, minimization of th... [more] | MW2017-30 pp.49-54 |
| MW | 2017-05-19 11:20 |
Osaka | Osaka Univ. (Seminar Room1, Osaka Univ. Kaikan) | Theoretical Relations between Unloaded Q Factor, Stored Energy, Group Delay, and Insertion Loss Derived from Coupling Matrix of Filter Circuit Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2017-17 |
This paper revisits the theoretical relations between (1) unloaded Q factor of resonator, (2) reactive energy stored in ... [more] | MW2017-17 pp.55-60 |
| MW | 2016-12-16 10:00 |
Kanagawa | National Defense Academy | Improved Extraction Method for Coupling-Matrix of Microstrip Bandpass Filters with Lossy Input/Output Lines Ryo Tomita, Masataka Ohira, Zhewang Ma, Xiaolong Wang (Saitama Univ.) MW2016-157 |
A coupling matrix extraction technique is very useful for designs and tunings of microwave bandpass filters. In recent y... [more] | MW2016-157 pp.141-146 |
| MW | 2016-05-20 09:45 |
Kyoto | Kyoto Univ. | A Study on Loss Mechanism and Characteristics of Artificial Dielectric Filter with TE-mode Resonators Yuto Nakagawa, Toshio Ishizaki (Ryukoku Univ.) MW2016-16 |
Artificial dielectric is constituted by arranging shorter metal strips than the wavelength in the crystal structure. A l... [more] | MW2016-16 pp.29-33 |
| EMCJ | 2016-05-13 11:05 |
Hokkaido | Hokkaido University | Proposal and basic study of a transparent water shield for the magnetic ally coupled WPT system
-- Toward resolution of EMC problems -- Kentaro Kawabe, Yangjun Zhang (Ryukoku Univ.), Ikuo Awai (Ryutech) EMCJ2016-9 |
We propose here a transparent electromagnetic shield using tap water. We have obtained a big shield effect for the leaka... [more] | EMCJ2016-9 pp.1-6 |
| WPT | 2016-03-08 10:50 |
Kyoto | Kyoto Univ. Uji Campus | Theoretical Analysis on the loss mechanism that salt water gives to spiral resonator's unloaded Q Kentaro Kawabe, Dai Futagami, Yangjun Zhang, Toshio Ishizaki (Ryukoku Univ.), Ikuo Awai (Ryutech) WPT2015-89 |
We have optimized various kinds of parameters such as the loading capacitors of a spiral resonator, its resonant frequen... [more] | WPT2015-89 pp.71-76 |
| MW | 2015-12-18 11:15 |
Tokyo | Tokyo Univ. of Science | Evaluation of Transmission Loss of Transmission Line Using Unloaded Q-factors Yoshihiko Kamo, Koutarou Munetou, Futoshi Kuroki (NIT, Kure College) MW2015-151 |
Generally, Q-factors of transmission lines are expressed by the wave-number in media, the transmission loss, and the ene... [more] | MW2015-151 pp.105-108 |
| WPT (2nd) |
2015-12-10 15:00 |
Overseas | TamKang University, Tamsui Campus | Optimum Resonator Configuration for Coupled-Resonator Undersea WPT systems Dai Futagami, Kawabe Kentaro, Toshio Ishizaki (Ryukoku Univ.), Ikuo Awai (Ryutech corp.) |
In this report, the magnetically-coupled type resonator used in undersea WPT (Wireless Power Transfer) system was examin... [more] | |
| AP, RCS, WPT, SAT (Joint) |
2015-11-06 13:10 |
Okinawa | Okinawa Prefectural Museum & Art Museum | The effect of salt water for Spiral resonator unloaded Q Kentaro Kawabe, Dai Futagami, Yangjun Zhang, Toshio Ishizaki (Ryukoku Univ.), Ikuo Awai (Ryutech) WPT2015-60 |
It is necessary to elucidate the influence of the salt water to a resonator in order to improve the efficiency of the WP... [more] | WPT2015-60 pp.73-78 |
| EE, WPT, IEE-SPC (Joint) [detail] |
2015-07-07 15:40 |
Kyoto | Study on spiral resonator parameters for undersea WPT system Kentaro Kawabe, Dai Futagami, Yangjun Zhang, Toshio Ishizaki (Ryukoku Univ.), Ikuo Awai (Ryutech) WPT2015-44 |
The method of forming of the most highly efficient resonator is different from the air in the wireless feeding through t... [more] | WPT2015-44 pp.49-53 |
|
| EE, WPT (Joint) |
2014-11-19 13:30 |
Kyoto | Doshisha University | Transfer characteristics of undersea WPT system with spiral resonators Dai Futagami, Yuichi Sawahara, Toshio Ishizaki (Ryukoku Univ), Ikuo Awai (Ryutech Co.) WPT2014-60 |
We have studied a WPT system for undersea power transfer. A new selection rule to decide the proper resonator diameter i... [more] | WPT2014-60 pp.55-60 |
| EMCJ, IEE-EMC, MW, EST [detail] | 2013-10-25 11:45 |
Miyagi | Tohoku Univ. | An Extraction Method of Equivalent-Circuit Parameters for Transversal Resonator Array Bandpass Filters Considering Loss Effects Masataka Ohira, Zhewang Ma (Saitama Univ.) EMCJ2013-81 MW2013-121 EST2013-73 |
This paper proposes a novel technique for extracting all the equivalent-circuit parameters of a transversal resonator ar... [more] | EMCJ2013-81 MW2013-121 EST2013-73 pp.125-130 |
| EST, MWP, OPE, MW, EMT, IEE-EMT [detail] | 2013-07-19 11:20 |
Hokkaido | Wakkanai Synthesis Cultural Center | An Insertion-Loss Formula for Transversal Resonator Array Bandpass Filters and Its Verification of Theory and Application Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2013-85 OPE2013-54 EST2013-49 MWP2013-44 |
In a direct-coupled resonator filter, which is constructed by cascade connection of resonators, the insertion loss at it... [more] | MW2013-85 OPE2013-54 EST2013-49 MWP2013-44 pp.235-240 |
| MW | 2013-05-31 10:00 |
Kyoto | Ryukoku Univ. | Study on Propagation-Mode of Wireless Power Transfer System Using Ceramic Dielectric Resonators Kenta Nishikawa, Toshio Ishizaki (Ryukoku Univ.) MW2013-17 |
In the conventional resonator-coupled WPT system, coil resonators made of copper wire are usually used. So, unloaded Q o... [more] | MW2013-17 pp.41-45 |
| RCS, SIP | 2010-01-21 13:30 |
Fukuoka | Kyushu Univ. | A Prototype of Bar-Antenna for MW AM Broadcast Receiver Using New Compound Magnetic Material Yasuhito Takeuchi (Kagoshima Univ.), Shuji Akaiwa (Mate) SIP2009-91 RCS2009-225 |
In this study a novel compound soft magnetic material for bar-antenna for MW AM broadcast receiver is proposed, together... [more] | SIP2009-91 RCS2009-225 pp.103-108 |
| MBE | 2009-05-22 10:45 |
Toyama | Toyama Univ. | Improvement of volume-oscillometric noninvasive blood pressure measurement method Tomoya Kusakabe, Masamichi Nogawa, Takehiro Yamakoshi, Shinobu Tanaka, Ken-ichi Yamakoshi (Kanazawa Univ.) MBE2009-1 |
A novel intermittent noninvasive blood pressure measurement method based on vascular unloading technique has been develo... [more] | MBE2009-1 pp.1-3 |
| EMT, OPE, MW | 2007-08-03 09:00 |
Hokkaido | Muroran Institute of Technology | Passband Insertion Loss of a Filter Consisting of Resonators with Different Unloaded Q Toshihiro Nomoto, Yoshiki Yamamoto, Masayoshi Nakano (NHK), Takashi Nagamatsu, Miki Negishi (NDK) MW2007-67 OPE2007-54 |
The spectrum of an OFDM signal is almost flat in the in-band and so it is desired that the insertion-loss variation of a... [more] | MW2007-67 OPE2007-54 pp.143-146 |
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