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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| WPT (2nd) |
2019-10-31 - 2019-11-02 |
Overseas | Xidian University | Design and analysis of EV running using WPT on microwave guide with slot for snow melting Tamami Maruyama, Yuji Koita, Kazusa Ohno (NIT, Hakodate College) |
A microwave snow melting device using a leaky wave by a slot waveguide has been reported. On the other hand, in snowy ar... [more] | |
| WPT | 2019-06-11 11:25 |
Hokkaido | Hokkaido Univ. | AAnalysis and design of rectenna for energy harvesting using Yagi-Uda antenna Tamami Maruyama (NIT, Hakodate College)  WPT2019-19 |
It is known that, in the Yagi-Uda antenna, by arranging a waveguide element close to a feed element and arranging the ar... [more] | WPT2019-19 pp.47-50 |
| WPT, MW | 2019-04-22 13:55 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Study of energy harvesting applying the principle of array antenna Tamami Maruyama (NIT, Hakodate College) WPT2019-3 MW2019-3 |
bstract For one of simple energy harvesting using microwave, it is well known that LED that soldered rectifier diode li... [more] | WPT2019-3 MW2019-3 pp.13-15 |
| WPT | 2019-03-07 16:20 |
Kyoto | Kyoto Univ. Uji Campus | Analysis and measurement of Metamaterial Reflect Array using Diode for environment improvement of lo T radio wave Kosei Ozeki, Airi Yamamoto, Takuto Ohsawa, Tamami Maruyama (NITH), Noriharu Suematsu, Hiroyasu Sato (TU), Mizuki Motoyoshi (Tohoku University), Manabu Omiya (HU) WPT2018-79 |
This paper proposed a novel reflectarray to achieve switching of the direction of radio waves that composed of meta-surf... [more] | WPT2018-79 pp.77-81 |
| WPT | 2019-03-07 16:40 |
Kyoto | Kyoto Univ. Uji Campus | Design of Dual-frequency Metasurface Using Particle Swarm Optimization Takuto Osawa, Airi Yamamoto, Tamami Maruyama (HIT,Hakodate college), Manabu Omiya (Hokkaido Univ.), Noriharu Suematsu, Hiroyasu Satoh (Tohoku Univ.) WPT2018-80 |
This paper proposes a novel dual frequency reflectarray whose elements have not only the desired reflection phases but a... [more] | WPT2018-80 pp.83-88 |
| MW, WPT | 2018-04-27 16:30 |
Tokyo | Kikai-Shinko-Kaikan Building | Characteristics of patch antennas with diode by WPT Kosei Ozeki, Takuto Osawa, Tamami Maruyama (HNCT) WPT2018-9 MW2018-9 |
This paper propose dual-band patch antenna using diodes that set between two patches. The antenna length is equivalently... [more] | WPT2018-9 MW2018-9 pp.41-44 |
| WPT | 2018-03-03 14:30 |
Kyoto | Kyoto Univ. Uji Campus | Electric field coupling wireless power transmission using disposal electric train rail for feeder Shiori Ishisa, Kaito Kawamori, Tamami Maruyama, Takuto Osawa, Kosei Ozeki (National Institute of Technology, Hakodate College) WPT2017-86 |
It is possible to move the EV model using energy harvest that converts radio waves received from transceivers, WIFI, mic... [more] | WPT2017-86 pp.93-96 |
| WPT | 2018-03-03 14:50 |
Kyoto | Kyoto Univ. Uji Campus | Electric field coupling wireless power transmission using disposal electric train rail for feeder Kaito Kawamori, Kosei Ozeki, Tamami Maruyama (National Institute of Technology, Hakodate College), Naoki Sakai (TUT), Takuto Osawa (National Institute of Technology, Hakodate College) WPT2017-87 |
There are studies of electric road which supply a power to electric viecle which does not carry the battery was studied.... [more] | WPT2017-87 pp.97-100 |
| AP | 2017-08-24 15:25 |
Hokkaido | National Institute of Technology, Hakodate College | [Tutorial Lecture]
Study of Wireless Power Transmission, Reflectarray and GA with Hakodate College student Tamami Maruyama (NIT, Hakodate college) AP2017-78 |
[more] | AP2017-78 pp.53-58 |
| AP | 2017-08-25 14:45 |
Hokkaido | National Institute of Technology, Hakodate College | Study of meta-surface for mobile IoT propagation improvement Tamami Maruyama (Hakodate college) |
[more] | |
| WPT | 2017-03-07 10:25 |
Kyoto | Kyoto Univ. Uji Campus | Variable Beam directional meta-surface using active element Tamami Maruyama, Takeru Shimano (National Institute of Technology, Hakodate College) WPT2016-76 |
In the M2M propagation environment, beam direction changing technique for small antenna like dipole antenna size is requ... [more] | WPT2016-76 pp.59-62 |
| 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 10:30 |
Hiroshima | Hiroshima Institute of Technology | Dual Wireless Power Transmission using Magnetic resonance coupling Tatsuya Komukai, Wataru Takahashi, Ryo Sakano, Ryouichi Baba, Tamami Maruyama (National Institute of Technology, Hakodate College) WPT2016-46 |
This paper achieve dual wireless power transmission using magnetic resonance coupling using that magnetic energy yield s... [more] | WPT2016-46 pp.23-26 |
| WPT | 2016-03-08 15:00 |
Kyoto | Kyoto Univ. Uji Campus | DESIGN OF DUAL-BAND REFLECTARRAY FOR SAME POLARIZATION USING GENETIC ALGORITHM Tamami Maruyama (National institute of technology, Hakodate college) WPT2015-95 |
This paper proposes novel design method of dual-band reflectarray using genetic algorithm (GA). Ordinary, each elements ... [more] | WPT2015-95 pp.101-103 |
| AP (2nd) |
2014-05-15 - 2014-05-16 |
Ishikawa | The Kanazawa Theatre | [Poster Presentation]
Configuration of Meta-surface Reflector for Antenna Beam Steering Yasutaka Murakami, Toshikazu Hori, Mitoshi Fujimoto (Univ. Fukui), Tamami Maruyama (NTT DoCoMo) |
This paper describes the optimum configuration of the meta-surface for antenna beam steering. The high gain and the exac... [more] | |
| AP (2nd) |
2014-05-15 - 2014-05-16 |
Ishikawa | The Kanazawa Theatre | [Poster Presentation]
Gain of Dipole Antenna with Partial Cylindrical Reflector Yusuke Watanabe, Yasutaka Murakami, Toshikazu Hori, Mitoshi Fujimoto (Univ. Fukui), Tamami Maruyama (NTT DoCoMo) |
In this paper, a dipole antenna with partial cylindrical reflector that has high gain is proposed. The gain of dipole an... [more] | |
| NS, RCS (Joint) |
2011-12-16 13:40 |
Yamaguchi | Yamaguchi University | Study on Area Expansion for Cellular System using Frequencies above 5GHz
-- Evaluation of Number of Repeaters and System Cost depending on Frequencies -- Ngochao Tran, Yasuhiro Oda, Tamami Maruyama, Jiyun Shen, Hidetoshi Kayama (NTT Docomo INC.) RCS2011-266 |
To realize next-generation ultra high-speed mobile communication system, we study on using high carrier frequencies abov... [more] | RCS2011-266 pp.195-200 |
| AN, USN, SR, RCS (Joint) |
2010-10-29 11:20 |
Osaka | Osaka University | On Capacity Improvement of 2x2 LOS-MIMO using Reflectors Jiyun Shen, Yasuhiro Oda, Tatsuo Furuno, Tamami Maruyama, Tomoyuki Ohya (NTT DOCOMO) RCS2010-133 |
As for the MIMO (Multiple-Input Multiple-Output) transmission scheme, high attention has be paid to the frequency utiliz... [more] | RCS2010-133 pp.169-174 |
| AP, SAT (Joint) |
2007-07-19 15:50 |
Hokkaido | Daiichi-Takimotokan(Noboribetsu) | Automatic Design of multi-antenna using GA evaluated by correlation and efficiency Tamami Maruyama, Keizo Cho (NTT DoCoMo) AP2007-59 |
[more] | AP2007-59 pp.101-106 |
| AP | 2007-05-17 13:25 |
Kochi | Kochi Univ. of Tech. | Directional Antenna Configuration of Indoor Base Station Antennas Considering Aspect Ratio of Rooms for MIMO systems Daisuke Uchida, Taihei Michihata, Hiroyuki Arai (Yokohama National Univ.), Yuki Inoue, Keizo Cho, Tamami Maruyama (NTT DoCoMo, Inc.) AP2007-14 |
We have examined the efficiency in the introduction of the directional antenna to the base station for the indoor propag... [more] | AP2007-14 pp.7-12 |
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