Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
WPT, UWT (Joint) |
2021-11-12 15:20 |
Online |
Online |
Investigation of measurement systems for designing RF-DC conversion circuits with maximum conversion efficiency at specific power and load Kensuke Kobayashi, Kazuhiro Fujimori (Okayama Univ.) WPT2021-9 |
In space solar power systems, the rectenna is used as an array on the power receiving side, but the microwave power dens... [more] |
WPT2021-9 pp.1-5 |
WPT, AP (Joint) |
2021-01-22 13:50 |
Online |
Online |
Examination of Matching Circuit Impedance on High-Efficiency Operating RF-DC Conversion Circuits Kensuke Kobayashi, Kazuhiro Fujimori (OU) WPT2020-32 |
Highly efficient rectenna and RF-DC conversion circuit are required for power transmission and energy harvesting in the ... [more] |
WPT2020-32 pp.12-14 |
MW |
2019-11-14 13:40 |
Okinawa |
Minami Daido Villa. Tamokuteki Koryu Center |
RF Energy Harvester Rectifiers Using Diodes Resonating with External Inductors Kei Ohno, Shinichi Tanaka (Shibaura Inst. of Tech.) MW2019-102 |
Low power rectifier for RF energy harvester based on a new operation principle is presented. The single-diode rectifier ... [more] |
MW2019-102 pp.13-18 |
WPT |
2019-06-11 11:05 |
Hokkaido |
Hokkaido Univ. |
Searching for highly efficient operating condition of an RF-DC conversion circuit using an automatic designing method based on genetic algorithm Takuma Akada, Kazuhiro Fujimori (Okayama Univ.) WPT2019-18 |
In this research, input stage and output stage of RF-DC conversion circuit is investigated to show optimal operating con... [more] |
WPT2019-18 pp.41-46 |
WPT, AP (Joint) |
2019-01-17 13:55 |
Aichi |
Toyota Automobile Museum |
Fundamental Research on Input Impedance and Impedance Matching of RF-DC Conversion Circuit Tsunayuki Yamamoto, Hiroshi Kubo (Yamaguchi Univ.) WPT2018-56 |
To identify a nonlinear input impedance of RF-DC conversion circuit %
leads to the realization of %
the impedance ma... [more] |
WPT2018-56 pp.13-17 |
WPT, AP (Joint) |
2019-01-18 14:00 |
Aichi |
Toyota Automobile Museum |
Series-Parallel Power Division and Combination for High-Power Rectifier Shinji Abe, Shogo Nishioka, Naoki Sakai, Takashi Ohira (Toyohashi Univ. Tech.) WPT2018-60 |
We investigate the characteristics of eight combinations of parallel/series RF power division, parallel/series DC power ... [more] |
WPT2018-60 pp.31-36 |
AP |
2018-10-19 09:55 |
Okayama |
Okayama Univ. |
A Study on Suitable Mutation for Genetic Algorithm Generating Planar Circuit Pattern by Logical OR of Overlapping Unit Structures Kento Nakagawa, Kazuhiro Fujimori (Okayama Univ.) AP2018-93 |
Microwave wireless power transfer technology attracts attention. An RF-DC conversion circuit is one of the most importa... [more] |
AP2018-93 pp.25-30 |
WPT, EE (Joint) |
2018-10-04 09:00 |
Kyoto |
Kyoto Univ. Uji Campus |
Bridge-T resonant rectifier prototype Shinji Abe, Naoki Sakai, Takashi Ohira (Toyohashi Univ. Tech.) WPT2018-36 |
In order to supply power to an active DC load such as motor and rechargeable battery by wireless power transfer,
we pro... [more] |
WPT2018-36 pp.39-43 |
WPT (2nd) |
2017-12-09 - 2017-12-11 |
Overseas |
National University of Singapore(AWPT2017) |
A Study on Influences of an Internal Resistance of a Power Supply on a Self-Biased RF-DC Conversion Circuit Tsunayuki Yamamoto, Hiroshi Kubo (Yamaguchi Univ.) |
[more] |
|
MW |
2016-12-16 16:00 |
Kanagawa |
National Defense Academy |
Two Topologies of Quarter-Wave-Line Inserted Resistance Compression Rectifier
-- Shunt-Shunt Topology and Series-Series Topology -- Shinji Abe, Kyohei Yamada, Naoki Sakai, Takashi Ohira (TUT) MW2016-169 |
In order to supply power active DC load such as motor and battery with wireless power transfer, we proposed quarter-wave... [more] |
MW2016-169 pp.211-214 |
EE, WPT (Joint) |
2016-10-07 13:00 |
Kyoto |
|
K4 Rectifier Proposal and Simulation Proof Shinji ABE, Naoki Sakai, Takashi Ohira (Toyohashi Univ. of Tech.) WPT2016-33 |
In order to supply power active DC load such as motor and battery with wireless power transfer, we propose novel RF rect... [more] |
WPT2016-33 pp.79-84 |
ED |
2016-01-20 13:55 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
[Invited Lecture]
Estimation of RF-DC conversion efficiency of microwave power Shottky barrier diodes for rectenna by small equivalent circuit model
-- Comparison of semiconductor materials -- Toshiyuki Oishi, Makoto Kasu (Saga Univ.) ED2015-116 |
RF-DC conversion efficiencies of rectenna using conventional and wide bandgap semiconductors are estimated by small sign... [more] |
ED2015-116 pp.25-29 |
WPT |
2015-03-25 10:35 |
Kyoto |
Kyoto Univ. Uji Campus |
Development of Microwave Power Receiving Device for Driving DC Motor with Dynamic Resistance Characteristic Yong Huang, Takaki Ishikawa, Tomohiko Mitani, Naoki Shinohara (Kyoto Univ.) WPT2014-103 |
Input load characteristics of DC motor fluctuate as the input power is changed. Also the conversion efficiency of a RF-D... [more] |
WPT2014-103 pp.49-54 |
MW |
2013-12-20 11:45 |
Saitama |
Saitama Univ. |
Development of a DC Power-supply Circuit for a Low Power Rectenna Yong Huang, Naoki Shinohara, Tomohiko Mitani (Kyoto Univ.) MW2013-170 |
This study proposes a RF-DC-DC circuit for an mW low power RF-DC rectifier circuit to improve the efficiency-load charac... [more] |
MW2013-170 pp.103-108 |
WPT (2nd) |
2013-11-22 16:50 |
Kanagawa |
Yokosuka Research Park |
[Invited Talk]
* Shoichi Kitazawa, Hirokazu Kamoda, Hiroshi Ban, Naoya Kukutsu, Kiyoshi Kobayashi (ATR) |
We have been conducting research and development of radio wave energy harvester that scavenges communication and broadca... [more] |
|
MW |
2013-11-22 13:30 |
Kagoshima |
Kagoshima Prefectural Culture Center |
Design of High Efficiency Rectifier Circuit Shohei Iwai, Hitoshi Shimamura, Hiroto Sakaki, Kenjiro Nishikawa (Kagoshima Univ.) MW2013-146 |
This paper proposes and demonstrates a high-efficiency rectifier circuit at low-input power operation. The proposed rect... [more] |
MW2013-146 pp.85-90 |
MW, ED |
2013-01-17 14:55 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
A Study of RF Energy Harvesting from Broadcasting and Communication Radio Wave Shoichi Kitazawa, Hirokazu Kamoda, Masahiro Hanazawa, Susumu Ano, Hiroshi Ban, Kiyoshi Kobayashi (ATR) ED2012-113 MW2012-143 |
We report here the energy harvesting from ambient electromagnetic wave such as TV broadcasting and cellular telephone fr... [more] |
ED2012-113 MW2012-143 pp.5-10 |
EE, WPT (Joint) |
2012-11-09 14:15 |
Tokyo |
|
The Improvement of Receiving Equipment for an Intermittent Microwave Power Transmission to a ZigBee device Takuya Ichihara, Tomohiko Mitani, Naoki Shinohara (Kyoto Univ.) |
Battery problems of a wireless sensor device including its lifetime and exchange cost are serious obstacles to construct... [more] |
|
MW |
2012-10-19 14:05 |
Tochigi |
Utsunomiya Univ. |
Development of a DC Power-supply Circuit for a Low Power Rectenna Yong Huang, Naoki Shinohara, Tomohiko Mitani (Kyoto Univ.) MW2012-108 |
This study proposes a DC power-supply circuit for an mW low power RF-DC rectifier circuit. We know that the efficiency o... [more] |
MW2012-108 pp.153-156 |
EMT, PN, LQE, OPE, MWP, EST, IEE-EMT [detail] |
2012-01-27 14:40 |
Osaka |
Osaka Univ. Convention Center |
The Conversion efficiency analysis of a shunt form RF-DC conversion circuit with the equivalent circuit parameter of a diode, Teruhiko Wagi, Shoichi Tamaru, Yoshihiro Kondo, Kazuhiro Fujimori, Kenji Tsuruta (Okayama Univ.) PN2011-62 OPE2011-178 LQE2011-164 EST2011-112 MWP2011-80 |
The highly efficient rectenna is needed for the reception device in the wireless power transmission technology and the e... [more] |
PN2011-62 OPE2011-178 LQE2011-164 EST2011-112 MWP2011-80 pp.201-206 |