RF design of helical long-wire traveling wave antenna for helicon current drive in KSTAR

被引：2

作者：

Wi, H. H. ^{[1
]}

Wang, S. J. ^{[1
]}

Kim, J. ^{[1
]}

Kwak, J. G. ^{[1
]}

机构：

[1] Korea Inst Fus Energy, 169-148 Gwahak Ro, Daejeon 34133, South Korea

来源：

FUSION ENGINEERING AND DESIGN | 2023年 / 195卷

关键词：

KSTAR; Helicon current drive; Helical long wire antenna; RF simulation; High power antenna;

D O I：

10.1016/j.fusengdes.2023.113983

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

This paper presents the development, fabrication, and implementation of a state-of-the-art helical long-wire traveling wave antenna (LW-TWA) for the Korea Superconducting Tokamak Advanced Research (KSTAR) helicon wave current drive (HCD). A multi-stage design approach has been employed incorporating schematic and simplified radio frequency (RF) modeling, to fulfill critical antenna performance criteria, such as parallel refractive index, while maintaining low electric field properties and load resilience. The advanced design includes a Faraday shield and a structurally rigid support for mechanical stability and minimal RF performance distortion. The sophisticated design and megawatt (MW)-class RF power handling capability of the LW-TWA hold the potential to improve HCD performance in KSTAR plasma.

引用

页数：7

共 5 条

[1] Design and RF test of a prototype traveling wave antenna for helicon current drive in KSTAR
Wi, H. H.
Wang, S. J.
Kim, H. J.
Kwak, J. G.
FUSION ENGINEERING AND DESIGN, 2018, 126 : 67 - 72
[2] RF conditioning to suppress multipactor discharge for helicon wave current drive in KSTAR
Lee, H. Y.
Kim, J. H.
Wi, H. H.
Kwak, J. G.
Wang, S. J.
FUSION ENGINEERING AND DESIGN, 2023, 193
[3] Test and operation of high-power RF system for KSTAR helicon current drive system
Kim, Jeehyun
Wang, Sonjong
Jang, Kwangho
Lee, Hyunyeong
Wi, Hyunho
FUSION ENGINEERING AND DESIGN, 2021, 166
[4] Design of multipactor-suppressed high-power VFT for helicon current drive in KSTAR
Jang, K. H.
Wang, S. J.
Wi, H. H.
Saito, K.
Kim, J. H.
Lee, H. Y.
Kwak, J. G.
FUSION ENGINEERING AND DESIGN, 2020, 161
[5] Helicon wave coupling in KSTAR plasmas for off-axis current drive in high electron pressure plasmas
Wang, S. J.
Wi, H. H.
Kim, H. J.
Kim, J.
Jeong, J. H.
Kwak, J. G.
NUCLEAR FUSION, 2017, 57 (04)

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