Design and Test of an Antenna Module Mock-Up for the EAST 4.6 GHz LHCD Launcher
The launcher of the 4.6 GHz lower hybrid current drive （LHCD） system for the Experimental Advanced Superconducting Tokamak （EAST） consists of 24 antenna modules, each composed of an array of 3 （row） × 8 （column） waveguides. In order to verify the radio frequency （RF） design and the feasibility of th...
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| Published in | Plasma science & technology Vol. 15; no. 8; pp. 834 - 839 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.08.2013
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1009-0630 |
| DOI | 10.1088/1009-0630/15/8/23 |
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| Abstract | The launcher of the 4.6 GHz lower hybrid current drive （LHCD） system for the Experimental Advanced Superconducting Tokamak （EAST） consists of 24 antenna modules, each composed of an array of 3 （row） × 8 （column） waveguides. In order to verify the radio frequency （RF） design and the feasibility of the manufacturing process, a mock-up of the module has been fabricated and measured. The measured return losses of all three input waveguides are less than 25 dB at a frequency of 4.6 GHz. The transmission coefficients from the input waveguide to the output waveguides are 9.13 ± 0.2 dB and the insertion loss is 0.104 dB. These good results mean that the design method of the antenna module can be used for the new 4.6 GHz launcher on EAST. The detailed design of the multi-junction antenna module and its initial test result are described in this paper. |
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| AbstractList | The launcher of the 4.6 GHz lower hybrid current drive （LHCD） system for the Experimental Advanced Superconducting Tokamak （EAST） consists of 24 antenna modules, each composed of an array of 3 （row） × 8 （column） waveguides. In order to verify the radio frequency （RF） design and the feasibility of the manufacturing process, a mock-up of the module has been fabricated and measured. The measured return losses of all three input waveguides are less than 25 dB at a frequency of 4.6 GHz. The transmission coefficients from the input waveguide to the output waveguides are 9.13 ± 0.2 dB and the insertion loss is 0.104 dB. These good results mean that the design method of the antenna module can be used for the new 4.6 GHz launcher on EAST. The detailed design of the multi-junction antenna module and its initial test result are described in this paper. The launcher of the 4.6 GHz lower hybrid current drive (LHCD) system for the Experimental Advanced Superconducting Tokamak (EAST) consists of 24 antenna modules, each composed of an array of 3 (row) x 8 (column) waveguides. In order to verify the radio frequency (RF) design and the feasibility of the manufacturing process, a mock-up of the module has been fabricated and measured. The measured return losses of all three input waveguides are less than -25 dB at a frequency of 4.6 GHz. The transmission coefficients from the input waveguide to the output waveguides are -9.13 + or - 0.2 dB and the insertion loss is 0.104 dB. These good results mean that the design method of the antenna module can be used for the new 4.6 GHz launcher on EAST. The detailed design of the multi-junction antenna module and its initial test result are described in this paper. |
| Author | 贾华 刘甫坤 刘亮 程敏 赵连敏 王晓洁 章家方 |
| AuthorAffiliation | Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China |
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| CitedBy_id | crossref_primary_10_1016_j_fusengdes_2016_08_018 crossref_primary_10_1080_15361055_2018_1516416 crossref_primary_10_1088_1741_4326_acc343 crossref_primary_10_1088_1009_0630_18_5_01 crossref_primary_10_1007_s10894_014_9674_9 crossref_primary_10_1016_j_fusengdes_2016_10_020 crossref_primary_10_1088_2058_6272_19_3_032001 crossref_primary_10_1088_1741_4326_ab77e5 crossref_primary_10_1088_2058_6272_aab262 crossref_primary_10_1088_1741_4326_aacfad crossref_primary_10_1109_TPS_2019_2903548 crossref_primary_10_1088_1741_4326_abd7b9 crossref_primary_10_1109_TPS_2020_2982748 |
| Cites_doi | 10.1103/PhysRevLett.54.897 10.1016/j.fusengdes.2005.06.200 10.1088/0029-5515/45/9/008 10.1016/S0920-3796(02)00388-5 10.1088/0741-3335/38/9/006 10.1088/0029-5515/51/2/023001 10.1016/S0920-3796(00)00450-6 10.1088/1674-1056/19/6/065204 10.1088/0029-5515/30/3/009 10.1088/0029-5515/29/9/011 |
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| Notes | The launcher of the 4.6 GHz lower hybrid current drive （LHCD） system for the Experimental Advanced Superconducting Tokamak （EAST） consists of 24 antenna modules, each composed of an array of 3 （row） × 8 （column） waveguides. In order to verify the radio frequency （RF） design and the feasibility of the manufacturing process, a mock-up of the module has been fabricated and measured. The measured return losses of all three input waveguides are less than 25 dB at a frequency of 4.6 GHz. The transmission coefficients from the input waveguide to the output waveguides are 9.13 ± 0.2 dB and the insertion loss is 0.104 dB. These good results mean that the design method of the antenna module can be used for the new 4.6 GHz launcher on EAST. The detailed design of the multi-junction antenna module and its initial test result are described in this paper. EAST; launcher; lower hybrid current drive 34-1187/TL JIA Hua , LIU Fukun , LIU Liang , CHENG Min , ZHAO Lianmin , WANG Xiaojie , SHAN Jiafang Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
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| References | Golant V E (8) 1972; 16 1 Litaudon X (2) 1996; 38 Litaudon X (11) 1990; 30 3 4 Pericoli Ridolfini V (5) 2005; 45 9 England A C (7) 1989; 29 Preynas M (6) 2011; 51 Ansoft Corporation (10) Qin Y L (12) 2010; 19 |
| References_xml | – volume: 16 start-page: 1980 year: 1972 ident: 8 publication-title: Sov. Phys. Tech. Phys – ident: 1 doi: 10.1103/PhysRevLett.54.897 – ident: 3 doi: 10.1016/j.fusengdes.2005.06.200 – volume: 45 start-page: 1085 issn: 0029-5515 year: 2005 ident: 5 publication-title: Nucl. Fusion doi: 10.1088/0029-5515/45/9/008 – ident: 9 doi: 10.1016/S0920-3796(02)00388-5 – ident: 10 – volume: 38 start-page: 1603 issn: 0741-3335 year: 1996 ident: 2 publication-title: Plasma Phys. Controlled Fusion doi: 10.1088/0741-3335/38/9/006 – volume: 51 start-page: 023001 issn: 0029-5515 year: 2011 ident: 6 publication-title: Nucl. Fusion doi: 10.1088/0029-5515/51/2/023001 – ident: 4 doi: 10.1016/S0920-3796(00)00450-6 – volume: 19 start-page: 065204 issn: 1674-1056 year: 2010 ident: 12 publication-title: Chin. Phys. doi: 10.1088/1674-1056/19/6/065204 – volume: 30 start-page: 471 issn: 0029-5515 year: 1990 ident: 11 publication-title: Nucl. Fusion doi: 10.1088/0029-5515/30/3/009 – volume: 29 start-page: 1527 issn: 0029-5515 year: 1989 ident: 7 publication-title: Nucl. Fusion doi: 10.1088/0029-5515/29/9/011 |
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| SubjectTerms | Antennas Design engineering GHz Launchers Modules Noise levels Radio frequencies Superconductivity Tokamak devices Waveguides 低杂波电流驱动 发射模拟 天线 模拟模块 测试 设计方法 输出波导 |
| Title | Design and Test of an Antenna Module Mock-Up for the EAST 4.6 GHz LHCD Launcher |
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