Title :
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
fDate :
27 Sept.-1 Oct. 2004
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;
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
DOI :
10.1109/ICIMW.2004.1422072
