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

fYear

2007

fDate

2-9 Sept. 2007

Firstpage

789

Lastpage

790

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIMW.2007.4516732

Filename

4516732