DocumentCode :
1215799
Title :
A Ridged Waveguide Slotted Coupler for Large Tokamaks
Author :
Arai, Hiroyuki ; Goto, Naohisa
Volume :
13
Issue :
6
fYear :
1985
Firstpage :
582
Lastpage :
586
Abstract :
A new ridged waveguide slotted coupler is proposed for large tokamaks and its promising characteristics are pointed out experimentally. A short circuit attached to the end of a ridged waveguide and a series of slots to cover the mouth launch the ion-cyclotron range of frequencies (ICRF) waves into the plasma with electric field orthogonal to the main toroidal magnetic field. The simulated experiment using water instead of the plasma load showed that the voltage standing-wave ratio (VSWR) in one typical guide is 3.0 and 5.0 for the distance to water being 0.02 ¿0 and 0.04 ¿0, respectively. The matching section inserted into the coupler reduces its VSWR to less than one-third.
Keywords :
Circuit simulation; Coupling circuits; Frequency; Magnetic circuits; Mouth; Plasma properties; Plasma simulation; Plasma waves; Tokamaks; Toroidal magnetic fields;
fLanguage :
English
Journal_Title :
Plasma Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0093-3813
Type :
jour
DOI :
10.1109/TPS.1985.4316477
Filename :
4316477
Link To Document :
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