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Design of improved compact decoupler based on adjustable capacitor for EAST-ICRF antenna
Chen, Gen; Mao, Yuzhou; Yuan, Shuai; Zhao, Yanping; Yang, Hua; Zhang, Xinjun; Qin, Chengming; Cheng, Yan; Wang, Yongsheng
2022
Source PublicationPLASMA SCIENCE & TECHNOLOGY
ISSN1009-0630
Corresponding AuthorChen, Gen(chengen@ipp.ac.cn) ; Mao, Yuzhou(maoyz@ipp.ac.cn)
AbstractThe Ion Cyclotron Radio Frequency (ICRF) heating antenna on EAST adopts a decoupling device to constrain power coupling among the radiation straps, which was discovered shortcomings such as long size, poor contact, and etc. In order to improve these weak points, a new type decoupler with terminal-loaded tunable capacitor is designed to replace the previous design. Besides the capability of the tunable admittance parameters of decoupler, the withstand voltage of the capacitor is the most significant consideration for working under high power. Therefore, the theoretical analysis carefully elaborates the capacitor withstand voltage, and the detailed analytical equations and criteria for design are given. After the comparative analysis of theoretical calculation and 3D simulation results, the decoupler design scheme is finalized. The capacitor-loaded decoupler has been successfully adopted for ICRF antenna at port N on EAST, and achieved the optimization of adjacent port isolation from -22 to -58 dB at 37 MHz without plasma to restrict mutual coupling. The new design of the decoupler has greatly improved its compactness and automatic adjustment performance, and could be good solution for the decoupling network of ICRF antennas.
Keyworddecoupler ICRF adjustable capacitor EAST
DOI10.1088/2058-6272/ac3806
WOS KeywordPOWER
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[11775258]
Funding OrganizationNational Natural Science Foundation of China
WOS Research AreaPhysics
WOS SubjectPhysics, Fluids & Plasmas
WOS IDWOS:000727690700001
PublisherIOP Publishing Ltd
Citation statistics
Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/126765
Collection中国科学院合肥物质科学研究院
Corresponding AuthorChen, Gen; Mao, Yuzhou
AffiliationChinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
First Author AffilicationChinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, Anhui, Peoples R China
Corresponding Author AffilicationChinese Academy of Sciences, Institute of Plasma Physics, Hefei 230031, Anhui, Peoples R China
Recommended Citation
GB/T 7714
Chen, Gen,Mao, Yuzhou,Yuan, Shuai,et al. Design of improved compact decoupler based on adjustable capacitor for EAST-ICRF antenna[J]. PLASMA SCIENCE & TECHNOLOGY,2022,24.
APA Chen, Gen.,Mao, Yuzhou.,Yuan, Shuai.,Zhao, Yanping.,Yang, Hua.,...&Wang, Yongsheng.(2022).Design of improved compact decoupler based on adjustable capacitor for EAST-ICRF antenna.PLASMA SCIENCE & TECHNOLOGY,24.
MLA Chen, Gen,et al."Design of improved compact decoupler based on adjustable capacitor for EAST-ICRF antenna".PLASMA SCIENCE & TECHNOLOGY 24(2022).
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