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EMC design for 110 m radio telescope RFSoC systems: hierarchical radiation quantification, waveguide-optimized shielding, and thermo-mechanical co-design

文献类型：期刊论文

作者Zeng, Yao1,3; Li, Rong1,3; Wang, Ziyue1; Liu, Qi2; Wang, Wei3; Kong, Min1; Chen, Yunyu1; Fei, Yuhao1; Zhang, Juyong1
刊名EXPERIMENTAL ASTRONOMY
出版日期2026-01-13
卷号61期号:1页码:4
关键词RFSoC Electromagnetic shielding Conductive elastomer Optical waveguide Thermal co-design
ISSN号0922-6435
DOI10.1007/s10686-025-10042-8
产权排序3
英文摘要This study presents a multi-physics co-design framework addressing electromagnetic-thermal coupling challenges in radio frequency system-on-chip (RFSoC) modules for the 110 m QiTai radio Telescope (QTT). A hierarchical electromagnetic assessment methodology combining near-field scanning (2.4 similar to 40 GHz) and signature separation algorithms enables precise identification of nine dominant radiation sources at the component level, while board-level power loading analysis establishes a 70dB shielding effectiveness (SE) requirement for stable operation. The proposed electromagnetic-topology-optimized detachable shielding enclosure integrates nonlinear strain-compensated conductive elastomers (sigma = 1.8 x 10(3) S/m, epsilon(max) = 150%) and waveguide-embedded multi-mode optical interfaces (lambda = 850/1310nm), achieving > 70dB SE with maintained optical communication integrity (BER < 10(-12)). Concurrent DELPHI-derived thermal network optimization results in a unified shielding-cooling architecture, reducing the maximum junction temperature from 84.1 degrees C to 40.0 +/- 0.5 degrees C under 35 W/cm(2) power density through enhanced heat flux paths. Anechoic chamber measurements validate the frequency-dependent SE degradation mechanism of optical-fiber-embedded waveguides, confirming compliance with IEC 61000-4-21 Class A standards. The framework systematically resolves shielding-communication trade-offs and thermal accumulation constraints in high-density RFSoCs, providing a scalable paradigm for next-generation radio telescope electronics operating in extreme observational environments.
资助项目Specialized Research Fund for State Key Laboratories[E12612A02S] ; Fundamental Research Funds for the Provincial Universities of Zhejiang[GK249909299001-1] ; National Natural Science Foundation of China[12373098] ; Higher Education Research Project of Zhejiang Higher Education Association[KT2024015] ; Research Project on Higher Education Teaching Reform of Hangzhou Dianzi University[ZDJG202402]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:001662049600001
出版者SPRINGER
资助机构Specialized Research Fund for State Key Laboratories ; Fundamental Research Funds for the Provincial Universities of Zhejiang ; National Natural Science Foundation of China ; Higher Education Research Project of Zhejiang Higher Education Association ; Research Project on Higher Education Teaching Reform of Hangzhou Dianzi University
源URL[http://ir.xao.ac.cn/handle/45760611-7/8487]  
专题射电天文技术研究室_新疆电磁兼容技术研究中心
通讯作者Li, Rong; Liu, Qi
作者单位1.Hangzhou Dianzi Univ, Sch Mech Engn, Hangzhou 310018, Peoples R China
2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
3.Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Solar Act & Space Weather, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Zeng, Yao,Li, Rong,Wang, Ziyue,et al. EMC design for 110 m radio telescope RFSoC systems: hierarchical radiation quantification, waveguide-optimized shielding, and thermo-mechanical co-design[J]. EXPERIMENTAL ASTRONOMY,2026,61(1):4.
APA Zeng, Yao.,Li, Rong.,Wang, Ziyue.,Liu, Qi.,Wang, Wei.,...&Zhang, Juyong.(2026).EMC design for 110 m radio telescope RFSoC systems: hierarchical radiation quantification, waveguide-optimized shielding, and thermo-mechanical co-design.EXPERIMENTAL ASTRONOMY,61(1),4.
MLA Zeng, Yao,et al."EMC design for 110 m radio telescope RFSoC systems: hierarchical radiation quantification, waveguide-optimized shielding, and thermo-mechanical co-design".EXPERIMENTAL ASTRONOMY 61.1(2026):4.

入库方式： OAI收割

来源：新疆天文台

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