Title :
Phased-array antenna for electron bernstein wave heating and current drive in QUEST
Author :
Idei, H. ; Sakaguchi, M. ; Kasahara, H. ; Saito, K. ; Tsukamoto, M. ; Hanada, K. ; Zushi, H. ; Sato, K.N. ; Nakamura, K. ; Sakamoto, M. ; Hasegawa, M. ; Higashizono, Y. ; Takase, Y. ; Maekawa, T. ; Mitarai, O. ; Kishimoto, Y. ; Kawasaki, S. ; Nakashima, H
Author_Institution :
Res. Inst. for Appl. Mech., Kyushu Univ., Kasuga, Japan
Abstract :
The phased-array antenna has been designed for steady-state electron Bernstein wave heating and current drive at 8.2 GHz in the QUEST tokamak. The prototype antenna had rather large side-lobe components. In the new designed antenna the side-lobe components were reduced by modification of the antenna structure. For the steady-state operation, forced water-cooling and thermal stress were analyzed for the antenna component using the HFSS/ePhysics/ANSYS codes.
Keywords :
Tokamak devices; antenna phased arrays; antennas in plasma; plasma Bernstein waves; plasma radiofrequency heating; plasma toroidal confinement; thermal stresses; HFSS/ePhysics/ANSYS codes; QUEST tokamak; current drive; forced water-cooling; phased-array antenna; side-lobe components; steady-state electron Bernstein wave heating; thermal stress; Antenna accessories; Antennas and propagation; Electrons; Heating; Particle beams; Phased arrays; Plasma waves; Prototypes; Steady-state; Tokamaks;
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.2009.5324704
