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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