A feasibility study on a load resilient antenna for the KSTAR ICRF heating system

被引：0
|
作者：
Kwak, Jong-Gu [1 ]
Kim, Suk-Kwon [1 ]
Hwang, C. K. [1 ]
Bae, Y. D. [1 ]
Yoon, J. S. [1 ]
Wang, S. J. [1 ]
Kim, S. K. [1 ]
Cho, Suwon [2 ]
机构：
[1] Korea Atom Energy Res Inst, 150 Dukjin Dong, Taejon 305353, South Korea
[2] Kyonggi Univ, Suwon, South Korea
来源：
RADIO FREQUENCY POWER IN PLASMAS | 2007年 / 933卷
关键词：
D O I：
暂无
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
An effective rf power coupling for ELMy plasmas is one of the key issues for the ICRF heating. The conjugate T matching, which was adopted by the ITER design, is known to be an effective solution for this problem. The KSTAR ICRF antenna consists of 4 current straps with the transmission line configurations of resonant loops. The conjugate T matching concept is applied to each strap by conjugating the impedance of the upper and the lower parts of the resonant loops at the T point and the electrical lengths of the upper and the lower parts are adjusted by using the two phase shifters. In this work, the feasibility of a conjugate T matching is studied for the KSTAR ICRF antenna. With a mutual coupling of 20% between the upper and the lower current straps, the KSTAR antenna is investigated for its load resilient characteristics against a variation of the plasma loading resistance. In addition, the effects of a phase difference of the antenna current between the upper and the lower straps on a rf power coupling to plasmas are investigated by using a full wave simulation code.
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页码：179 / +
页数：2
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