DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bae, YS | - |
dc.contributor.author | Paek, CH | - |
dc.contributor.author | Rhee, MJ | - |
dc.contributor.author | Namkung, W | - |
dc.contributor.author | Cho, MH | - |
dc.contributor.author | Bernabei, S | - |
dc.contributor.author | Park, H | - |
dc.date.accessioned | 2017-07-19T06:16:03Z | - |
dc.date.available | 2017-07-19T06:16:03Z | - |
dc.date.created | 2009-02-28 | - |
dc.date.issued | 2003-07 | - |
dc.identifier.issn | 0920-3796 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/33630 | - |
dc.description.abstract | The Korean Superconducting Tokamak Advanced Research (KSTAR) tokamak is being constructed to perform long-pulse, high-beta, advanced tokamak fusion physics experiments by Korean Basic Science Institute (KBSI). The KSTAR tokamak will use the non-inductive plasma current drive system, lower-hybrid current drive (LHCD) system for lone-pulse operation. A 5.0-GHz microwave coupler is designed for KSTAR LHCD experiments. Four high-power klystrons feed 128 guidelets at front coupler using hundred and twenty 3-dB power dividers including 3-dB power splitters in the coupler. The guidelet has a height of 5.5 cm and the width of 0.55 cm in order for the power flux density not to exceed 4.0 kW/cm(2) at the guidelet. The coupler is constructed by laminating a stack of metal plates milled to waveguide patterns. This paper describes detailed design for the 3-dB power splitter, the fixed-phase shifter, and the taper section composing the coupler. Using the High Frequency Structure Simulator (HFSS) program, we achieved a phase difference of +/-0.5degrees and a relative power difference less than 0.2% between two vertical guidelets. (C) 2003 Elsevier Science B.V. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.relation.isPartOf | FUSION ENGINEERING AND DESIGN | - |
dc.subject | KSTAR | - |
dc.subject | LHCD | - |
dc.subject | Tokamak | - |
dc.subject | guidelet | - |
dc.title | Design of 5.0-GHz KSTAR lower-hybrid coupler | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/S0920-3796(0 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | FUSION ENGINEERING AND DESIGN, v.65, no.4, pp.569 - 576 | - |
dc.identifier.wosid | 000185133200008 | - |
dc.date.tcdate | 2019-03-01 | - |
dc.citation.endPage | 576 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 569 | - |
dc.citation.title | FUSION ENGINEERING AND DESIGN | - |
dc.citation.volume | 65 | - |
dc.contributor.affiliatedAuthor | Namkung, W | - |
dc.contributor.affiliatedAuthor | Cho, MH | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 11 | - |
dc.type.docType | Review | - |
dc.subject.keywordAuthor | KSTAR | - |
dc.subject.keywordAuthor | LHCD | - |
dc.subject.keywordAuthor | Tokamak | - |
dc.subject.keywordAuthor | guidelet | - |
dc.relation.journalWebOfScienceCategory | Nuclear Science & Technology | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Nuclear Science & Technology | - |
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