Title :
Study of dual-dipole antenna array for millimeter wave imaging
Author :
Akaki, Kazuhiko ; Mase, Atsushi ; Kogi, Yuichiro ; Uchino, Kiichiro ; Nagayama, Yoshio ; Kawahata, Kazuo ; Yamaguchi, Souichiro ; Inagaki, Shigeru ; Kim, Kang Wook
Author_Institution :
Interdiscipl. Grad. Sch. of Eng. Sci., Kyushu Univ., Kasuga, Japan
Abstract :
Millimeter wave imaging diagnostics such as electron cyclotron emission imaging (ECEI) and microwave imaging reflectometry (MIR) are advanced technology to investigate electron temperature/density profiles and their fluctuations in magnetically confined plasmas. We have installed an ECEI system in the large helical device (LHD) at National Institute for Fusion Science (NIFS). The optimization of a receiving antenna array is essential for the imaging diagnostics. We have designed and fabricated dual-dipole antenna array. In this paper, the design and fabrication process of dual-dipole antennas are described. The characterizations of the antennas are also reported by comparing simulation and experimental results.
Keywords :
dipole antenna arrays; microwave reflectometry; millimetre wave imaging; dual-dipole antenna array; electron cyclotron emission imaging; large helical device; magnetically confined plasmas; microwave imaging reflectometry; receiving antenna array; Antenna arrays; Cyclotrons; Electron emission; Magnetic confinement; Microwave devices; Microwave imaging; Millimeter wave technology; Plasma confinement; Plasma temperature; Reflectometry;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5324955
