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| 射电天文4–40 GHz超宽带低噪声放大器设计 | |
| Alternative Title | Design of 4-40 GHz Ultra-wideband Low Noise Amplifier for Radio Astronomy |
潘北军1,2,3; 陈卯蒸1,2 ; 王浩辉1,2,3; 闫浩1,2; 宁云炜1,2
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| 2022-07-01 | |
| Source Publication | 天文学报
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| ISSN | 0001-5245 |
| Volume | 63Issue:4Pages:52-60 |
| Contribution Rank | 1 |
| Abstract | 超宽带接收机面临众多技术挑战,而关键技术难点之一是超宽带低噪声放大器.采用以砷化镓材料为基底的70 nm栅长改性高电子迁移率晶体管和双电源偏置4级放大电路结构,设计了一款4–40 GHz超宽带低噪声单片微波集成放大器,完整覆盖C、X、Ku、K、Ka共5个波段.设计仿真结果表明,该放大器增益为(40±2.5) dB,常温下噪声温度平均95 K, 4–12.5 GHz噪声温度全频带低于83 K,直流功耗130.5 mW.整个频带内输入反射系数典型值-10 d B,输出反射系数典型值-15 d B,全频带范围内稳定,无自激振荡现象.该器件可做为前置放大器,应用于超宽带接收机和大规模多波束接收机中,可有效提高射电望远镜观测效率. |
| Other Abstract | The ultra-wideband receivers face many technical challenges,and one of the key technical difficulties is the ultra-wideband low-noise amplifier (LNA).Using a gallium arsenide material-based 70 nm gate length metamorphic high electron mobility transistor,and dual-supply bias 4-stage amplifier circuit structure,a 4-40 GHz ultra-wideband low-noise monolithic microwave integrated amplifier is designed,which completely covers 5 bands of C,X,Ku,K and Ka.The design simulation results show that the amplifier gain is (402.5) dB.The average noise temperature at room temperature is 95 K,the noise temperature of 4-12.5 GHz is lower than 83 K in the whole frequency band,and the DC (direct current) power consumption is 130.5 mW.The input reflection coefficient in the entire frequency band is typically -10 dB,and the output reflection coefficient is typically -15 dB,stable in the whole frequency range,no self-excited oscillation phenomenon.The device can be used in the ultra-wideband receivers and large-scale multi-beam receivers,which improve the observation efficiency of radio telescopes effectively. |
| Keyword | 望远镜 技术:射电天文 技术:其他诸多方面 |
| DOI | 10.15940/j.cnki.0001-5245.2022.04.006 |
| URL | 查看原文 |
| Indexed By | CSCD ; 中文核心期刊要目总览 |
| Language | 中文 |
| CSCD ID | CSCD:7271930 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5100 |
| 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 | 陈卯蒸 |
| Affiliation | 1.中国科学院新疆天文台 乌鲁木齐 830011; 2.新疆微波技术重点实验室 乌鲁木齐 830011; 3.中国科学院大学天文与空间科学学院 北京 100049 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | 潘北军,陈卯蒸,王浩辉,等. 射电天文4–40 GHz超宽带低噪声放大器设计[J]. 天文学报,2022,63(4):52-60. |
| APA | 潘北军,陈卯蒸,王浩辉,闫浩,&宁云炜.(2022).射电天文4–40 GHz超宽带低噪声放大器设计.天文学报,63(4),52-60. |
| MLA | 潘北军,et al."射电天文4–40 GHz超宽带低噪声放大器设计".天文学报 63.4(2022):52-60. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 潘北军-2022-射电天文4–40 GH（4020KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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