Zobrazeno 1 - 10
of 149
pro vyhledávání: '"Tomohiko Mitani"'
Publikováno v:
IEEE Journal of Microwaves, Vol 2, Iss 4, Pp 711-719 (2022)
This study theoretically and experimentally indicates that a charge pump rectifier for low-power rectifiers such as RF-ID can be applied to high-power rectifiers and can attain the same level of RF-dc conversion efficiency and twice as high power rec
Externí odkaz:
https://doaj.org/article/ce09369471954296b5bea9f98c2eeb7b
Publikováno v:
IEEE Journal of Microwaves, Vol 2, Iss 2, Pp 297-306 (2022)
Power beaming is one of the core technologies for microwave power transmission (MPT) systems. Effective plane-to-plane power beaming requires not only high point-to-point efficiency but also appropriately-shaped beam to extract the best performance o
Externí odkaz:
https://doaj.org/article/d6fb4bdbf8184599989883cfa1637d84
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 95-103 (2021)
In this article, an array optimization method for maximizing beam collection efficiency (BCE) to an arbitrary receiving plane in the near field is proposed. The proposed method considers each element pattern in an array; thus, optimization with mutua
Externí odkaz:
https://doaj.org/article/23b9913ca75d4056bd0b0c1d56a1b8ab
Publikováno v:
IEEE Access, Vol 8, Pp 133645-133653 (2020)
This study proposes a dual-circularly polarized Reduced-Surface-Wave (RSW) antenna which has a compact and simple structure by the integration of a via-loaded annular-ring (VLAR)-RSW antenna with a branch-line coupler. The fundamental characteristics
Externí odkaz:
https://doaj.org/article/f1b935e11f034f8f9c7cfae025192262
Autor:
Aya Yanagawa, Masatoshi Tomaru, Atsushi Kajiwara, Hiroki Nakajima, Elie Desmond-Le Quemener, Jean-Philippe Steyer, Tomohiko Mitani
Publikováno v:
Insects, Vol 11, Iss 9, p 598 (2020)
The physiological and behavioral influences of 2.45 GHz microwaves on Drosophila melanogaster were examined. Standing waves transitioned into heat energy effectively when passing through the insect body. On the contrary, travelling waves did not tran
Externí odkaz:
https://doaj.org/article/056a56c4c2ad4ed3a745b4ad051f08ab
Autor:
Shuntaro Tsubaki, Shogo Hayakawa, Tadaharu Ueda, Tomohiko Mitani, Ei-ichi Suzuki, Satoshi Fujii, Yuji Wada
Publikováno v:
Materials, Vol 11, Iss 7, p 1202 (2018)
Electromagnetic waves, such as microwaves, have been used to enhance various chemical reactions over polyoxometalates. The dielectric properties of catalysts are among the relevant parameters facilitating catalytic reactions under electromagnetic rad
Externí odkaz:
https://doaj.org/article/310d85fda26048ca8c2d3c20e8338ef4
Autor:
Jun Fukushima, Shuntaro Tsubaki, Tomoki Matsuzawa, Keiichiro Kashimura, Tomohiko Mitani, Tomoaki Namioka, Satoshi Fujii, Naoki Shinohara, Hirotsugu Takizawa, Yuji Wada
Publikováno v:
Materials, Vol 11, Iss 1, p 169 (2018)
Microwave (MW) heating has received attention as a new heating source for various industrial processes. Some materials are expected to be a more effective absorber of MW, and graphite is observed as a possible candidate for high-temperature applicati
Externí odkaz:
https://doaj.org/article/980029c727624f49930cbd509f8629e9
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 71(5):2299-2306
This article used image recognition and beam forming technology to build a phased array with target tracking and transmitting the microwaves with a focused beam. The coordinate position of the target is obtained from the image recognition module and
Publikováno v:
IEICE Transactions on Electronics. :50-58
Publikováno v:
IEICE Transactions on Electronics. :509-518