Coupling and Matching Study of the ICRF Antenna for W7-X

被引：4

作者：

Messiaen, A. ^{[1
]}

Krivska, A. ^{[1
]}

Louche, F. ^{[1
]}

Ongena, J. ^{[1
]}

Dumortier, P. ^{[1
]}

Durodie, F. ^{[1
]}

Van Eester, D. ^{[1
]}

Vervier, M. ^{[1
]}

机构：

[1] TEC Partner, EURATOM Belgian State Assoc, Royal Mil Acad, Lab Plasma Phys, B-1000 Brussels, Belgium

来源：

RADIOFREQUENCY POWER IN PLASMAS | 2014年 / 1580卷

关键词：

ICRH; W7-X; coupling; matching; decoupler; 5-ports junction;

D O I：

10.1063/1.4864561

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A tight antenna plug consisting in a pair of straps with strong pre-matching covers the first selected frequency band (25-38MHz) for W7-X and provides the toroidal phasings for heating, current drive and wall conditioning. Another plug-in with two short strap triplets is devoted for operation around 76MHz. The antenna coupling to a reference plasma profile is first analyzed by means of the coupling code ANTITER II. It shows the radiation power spectra for the different phasing cases and indicates the problem of the edge power deposition through the Alfven resonance occurring when the operating frequency is lower than the majority cyclotron frequency. Matrices provided by the TOPICA code are used for the matching-decoupling study of the first antenna plug. The large mutual coupling between the 2 straps is counterbalanced by the use of a decoupler. Finally the tunable 5-port junction used to feed in parallel each triplet of the second plug-in is analyzed by means of MWS simulation together with its decoupling-matching system.

引用

页码：354 / 357

页数：4

共 5 条

[1]

Koch R., 1986, COMPUTER PHYS COM, V40, P1

[2] TOPICA: an accurate and efficient numerical tool for analysis and design of ICRF antennas [J].

Lancellotti, V. ;

Milanesio, D. ;

Maggiora, R. ;

Vecchi, G. ;

Kyrytsya, V. .

NUCLEAR FUSION, 2006, 46 (07) :S476-S499

[3]

Louche F., 2013, P 40 EPS C PLASM PHY

[4] ICRH antenna coupling physics and optimum plasma edge density profile. Application to ITER [J].

Messiaen, A. ;

Weynants, R. .

PLASMA PHYSICS AND CONTROLLED FUSION, 2011, 53 (08)

[5] Performance of the ITER ICRH system as expected from TOPICA and ANTITER II modelling [J].

Messiaen, A. ;

Koch, R. ;

Weynants, R. R. ;

Dumortier, P. ;

Louche, F. ;

Maggiora, R. ;

Milanesio, D. .

NUCLEAR FUSION, 2010, 50 (02)

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