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タイトル
和文: 
英文:Development of 2-D Antenna Array for Microwave Imaging Reflectometry in LHD 
著者
和文: 桑原大介, 飯尾俊二, 長山好夫, 吉永智一, 杉戸正治, 石中兵, 山口聡一朗, 近木祐一郎, 間瀬淳.  
英文: Daisuke Kuwahara, SHUNJI TSUJI-IIO, Yoshio Nagayama, Tomokazu Yoshinaga, Masaharu Sugito, Zhongbing Shi, Soichiro Yamaguchi, Yuichiro Kogi, Atsushi Mase.  
言語 English 
掲載誌/書名
和文: 
英文:Journal of Plasma and Fusion Reserch SERIES 
巻, 号, ページ Vol. 8        pp. 0649-0654
出版年月 2009年9月 
出版者
和文:プラズマ核融合学会 
英文:The Japan Society of Plasma Science and Nuclear Fusion Research 
会議名称
和文: 
英文:14th International Congress on Plasma Physics (ICPP2008) 
開催地
和文:福岡 
英文:Fukuoka, Japan 
アブストラクト A 2-D antenna array for the Microwave Imaging Reflectometry (MIR) has been developed for the Large Helical Device (LHD). The MIR is a method of electron density diagnostics by the use of microwave radar techniques to obtain 2-D/3-D images of electron density fluctuations for the investigation of micro-turbulence and magneto-hydrodynamic instabilities in magnetically confined plasmas. The antenna array consists of five antennas in the toroidal direction and eight ones in the poloidal direction, respectively. As a test of an antenna element, a pyramidal horn antenna in the frequency range of 10-15 GHz was compared with the Yagi-Uda antenna. Based on the test results of the lower frequency antenna element, we manufactured a 2-D horn antenna array in the frequency rang of 50-75 GHz.

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