High power transmission performance of millimeter wave remote steering launcher

Author

Takahashi, K. ; Moeller, C.P. ; Sakamoto, K. ; Kasugai, A. ; Minami, R. ; Imai, T.

Author_Institution

Japan Atomic Energy Res. Inst., Ibaraki, Japan

fYear

2004

fDate

27 Sept.-1 Oct. 2004

Firstpage

293

Lastpage

294

Abstract

High power transmission experiments with a millimeter wave remote steering launcher, which consists of a square corrugated waveguide and a copper steering mirror at the inlet of the waveguide, were carried out to study the steering capability and the high power transmission performance as a millimeter wave antenna for plasma heating in nuclear fusion application. A Gaussian-like beam was radiated from the outlet of the launcher waveguide at 0.85 MW and with more than 95% efficiency over the steering angle range -12° to 12°. The wave frequency was 170 GHz. The measured heat distribution along the waveguide length agreed with calculations.

Keywords

antenna radiation patterns; antennas in plasma; copper; millimetre wave antennas; mirrors; nuclear fusion; plasma filled waveguides; plasma heating; power transmission; waveguide antennas; 0.85 MW; 170 GHz; Cu; Gaussian like beam; copper steering mirror; heat distribution; high power transmission; launcher waveguide; millimeter wave antenna; millimeter wave remote steering launcher; nuclear fusion application; plasma heating; square corrugated waveguide; Copper; Fusion reactors; Heating; Millimeter wave measurements; Mirrors; Plasma applications; Plasma measurements; Plasma waves; Power transmission; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on

Print_ISBN

0-7803-8490-3

Type

conf

DOI

10.1109/ICIMW.2004.1422072

Filename

1422072