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Journal Articles

Development of a high power wideband polarizer for electron cyclotron current drive system in JT-60SA

Saigusa, Mikio*; Oyama, Gaku*; Matsubara, Fumiaki*; Takii, Keita*; Sai, Takuma*; Kobayashi, Takayuki; Moriyama, Shinichi

Fusion Engineering and Design, 96-97, p.577 - 582, 2015/10

 Times Cited Count:4 Percentile:32.14(Nuclear Science & Technology)

A wideband polarizer has been developed for an ECCD system in JT-60SA. The groove depth of the mirrors installed in miter bends were optimized for two frequencies (110 GHz and 138 GHz) by numerical simulations. All surfaces of Poincare spheres were covered at both of the frequencies in low power test. The thermal stress of polarizer were estimated by the numerical simulations. The twister polarizer has been tested up to 0.24 MW during 3 s at 110 GHz.

Oral presentation

An RF desing study of a high-power millimeter-wave fast switch

Nagashima, Koji*; Yamaguchi, Tomoki*; Takii, Keita*; Sekiguchi, Kenji*; Saigusa, Mikio*; Oda, Yasuhisa; Fukunari, Masafumi*; Sakamoto, Keishi

no journal, , 

no abstracts in English

Oral presentation

Loss calculation of a high-power millimeter-wave fast switch

Takii, Keita*; Yamaguchi, Tomoki*; Nagashima, Koji*; Sekiguchi, Kenji*; Saigusa, Mikio*; Oda, Yasuhisa; Fukunari, Masafumi*; Sakamoto, Keishi

no journal, , 

no abstracts in English

Oral presentation

Research and development of wide band polarizer for high power millimeter waves

Sai, Takuma*; Matsubara, Fumiaki*; Takii, Keita*; Oyama, Gaku*; Saigusa, Mikio*; Kobayashi, Takayuki; Moriyama, Shinichi

no journal, , 

no abstracts in English

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