Institutional Repository of Radio Astronomy Research Laboratory
| Cryogenic MMIC Low-Noise Amplifiers for Radio Telescope Applications | |
Wang, Haohui1,2,3,4 ; Chen, Maozheng1,2,3,4
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| 2025-04-13 | |
| Source Publication | ELECTRONICS
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| ISSN | 2079-9292 |
| Volume | 14Issue:8Pages:1572 |
| Contribution Rank | 2 |
| Abstract | This paper presents two cryogenic low-noise amplifiers (LNAs) based on the WIN's 0.18 mu m gate length gallium arsenide (GaAs) pseudomorphic high electron mobility transistor (pHEMT) process designed for radio telescope receivers. Discrete transistors with gate peripheries spanning 50-600 mu m were DC-characterized at 290 K and 15 K, respectively. The LNAs underwent on-chip noise characterization under 15 K using a Y-factor measurement setup, which integrated a calibrated noise source and a noise figure analyzer. This approach directly quantified the noise temperature-critical metrics for radio telescope receiver front-ends. The top-performing LNA variant identified through on-chip characterization was packaged and evaluated in a cryogenic test-bed. This LNA, spanning a bandwidth of 0.3-15 GHz, demonstrated a gain of 26 dB and a minimum noise temperature of 6 K when operated at an ambient temperature of 15 K. In contrast, a second LNA architecture, tested solely on-chip, demonstrated a gain of 30 dB and a minimum noise temperature of 15 K across the 0.3-7 GHz range. |
| Keyword | cryogenic low-noise amplifiers (LNAs) gallium arsenide (GaAs) monolithic microwave integrated circuits (MMICs) radio astronomical receiver |
| DOI | 10.3390/electronics14081572 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R&D Program of China ; [2022YFC2205301] |
| WOS Research Area | Computer Science ; Engineering ; Physics |
| WOS Subject | Computer Science, Information Systems ; Engineering, Electrical & Electronic ; Physics, Applied |
| WOS ID | WOS:001474858800001 |
| Publisher | MDPI |
| Funding Organization | National Key R&D Program of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/7697 |
| Collection | 射电天文研究室_微波技术实验室 110米口径全可动射电望远镜（QTT）_技术成果 |
| Corresponding Author | Chen, Maozheng |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, 150, Sci 1-St, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 101408, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron & Technol, Beijing 100101, Peoples R China 4.Xinjiang Key Lab Microwave Technol, Urumqi 830011, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, Haohui,Chen, Maozheng. Cryogenic MMIC Low-Noise Amplifiers for Radio Telescope Applications[J]. ELECTRONICS,2025,14(8):1572. |
| APA | Wang, Haohui,&Chen, Maozheng.(2025).Cryogenic MMIC Low-Noise Amplifiers for Radio Telescope Applications.ELECTRONICS,14(8),1572. |
| MLA | Wang, Haohui,et al."Cryogenic MMIC Low-Noise Amplifiers for Radio Telescope Applications".ELECTRONICS 14.8(2025):1572. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Wang-2025-Cryogenic （7647KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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