Title :
Design of phased array antenna system for electron Bernstein wave heating and current drive in QUEST
Author :
Idei, Hiroshi ; Kawaguchi, Minoru ; Sakaguchi, Masatsugu ; Tanaka, Yasumasa ; Ito, Satoshi
Author_Institution :
Res. Inst. for Appl. Mech., Kyushu Univ., Fukuoka
Abstract :
The phased array antenna system has been designed for electron Bernstein wave heating and current drive in the QUEST tokamak at 8.2 GHz. In order to control the launching polarization state, an orthomode transducer was designed to mix two orthogonal electric field components. The polarization state was arbitrarily controlled using phase difference and intensity ratio between the two field components. The fields radiated from the phased array antenna were evaluated using the Kirchhoff integral and HFSS codes. New designed phased array antenna steered a radiated beam to the desired launching-direction by the phased array.
Keywords :
Tokamak devices; antenna phased arrays; plasma Bernstein waves; HFSS codes; Kirchhoff integral; QUEST tokamak; current drive; electron Bernstein wave heating; frequency 8.2 GHz; launching polarization state; orthogonal electric field components; orthomode transducer; phased array antenna system; Antenna arrays; Electromagnetic waveguides; Electrons; Heating; Phased arrays; Plasma waves; Polarization; Steady-state; Tokamaks; Transducers;
Conference_Titel :
Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-1438-3
DOI :
10.1109/ICIMW.2007.4516732
