Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Mikio Saigusa"'
Autor:
Fumiaki Inoue, Mikio Saigusa, Kana Yokoyama, Ryosuke Ikeda, Yasuhisa Oda, Daichi Handa, Koji Takahashi, Ken Kajiwara, Hiroki Shozu
Publikováno v:
Fusion Engineering and Design. 173:112937
A new fast directional switch for high power millimeter waves without frequency modulation was proposed. The principle is a triangle ring resonator of circular corrugated waveguides with a vibrating reflector. The switching frequency was obtained up
Autor:
Hiroki Shozu, Junnya Mori, Yasuhisa Oda, Koji Takahashi, Toshihiko Honzu, Ryosuke Ikeda, Mikio Saigusa, Kenji Sekiguchi
Publikováno v:
Fusion Engineering and Design. 123:385-389
A diplexer to be used as a fast switching device of high power millimeter wave for an electron cyclotron current drive system has been developed. The operation frequency of the device is tunable by controlling the thermal expansion of the cavity usin
Autor:
Takayuki Kobayashi, Atsushi Omori, Shinichi Moriyama, Hiroshi Arata, Tsuyoshi Uno, Mikio Saigusa, Kohei Omori, Naoyuki Horie
Publikováno v:
Fusion Engineering and Design. 122:218-222
A wideband polarizer consisting of a polarization twister and a circular polarizers have been developed for the Electron Cyclotron Current Drive system in JT-60SA at the frequencies of 110 GHz and 138 GHz. Ohmic loss of the polarization twister has b
Autor:
Takuma Sai, Mikio Saigusa, Shinichi Moriyama, Keita Takii, Gaku Oyama, Takayuki Kobayashi, Fumiaki Matsubara
Publikováno v:
Fusion Engineering and Design. :577-582
A wideband polarizer consisting of a polarization twister and a circular polarizer has been developed for an electron cyclotron current driving system in JT-60SA, where the output frequencies of a dual frequency gyrotron for JT-60SA are 110 and 138 G
Publikováno v:
Fusion Engineering and Design. 88:964-969
A new type wideband diplexer as a fast switching device of high power millimeter wave has been developed for an electron cyclotron current driving system. A main purpose of fast switching is a stabilization of neoclassical tearing mode in tokamak pla
Autor:
John C. Young, Takehito Suzuki, Keisuke Takano, Hideaki Kitahara, Mikio Saigusa, Takahiro Suzuki, Masanori Hangyo, Takuya Konno
Publikováno v:
Applied Physics A. 109:1103-1108
Optical devices for the terahertz wave band are being developed now and require better designs. This paper proposes an artificial dielectric lens with metallic corrugated structures for the terahertz wave band. A periodic analysis model extracted fro
Autor:
Nobuatsu Tanaka, Fumito Kaminaga, Yasuhiro Kanto, Akira Kurumada, Mikio Saigusa, Kenji Kikuchi, Kunihito Matsumura
Publikováno v:
Journal of JSEE. 60:51-56
The College of Engineering, Ibaraki University is located at the Hitachi city, in the north part of Ibaraki prefecture. Hitachi and Tokai areas are well known as concentration of advanced technology center of nuclear power research organizations. By
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 131:665-670
Autor:
Yusuke Kudo, M. Nakamura, Manabu Harigae, Ryutarominami, Mikio Saigusa, Tsuyoshi Kariya, H. Shidara, Tsuyoshi Imai
Publikováno v:
Fusion Science and Technology. 55:136-139
The new polarizers with grooved mirrors were installed in ECRH system on the GAMMA 10 to get the optimal polarized wave. Numeric calculation and low power performance test of this pair of polarizer...