Institutional Repository of Radio Astronomy Research Laboratory
| 一种K波段接收机的研制 | |
| Alternative Title | Development of a K-band Receiver |
王凯1,2,3 ; 闫浩1,2,3; 马军1,2,3; 陈卯蒸1,2,3; 曹亮1,2,3; 宁云炜1,2,3; 段雪峰1,2,3; 李健1,2,3; 项斌斌1,2
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| 2022-07-01 | |
| Source Publication | 天文研究与技术
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| ISSN | 1672-7673 |
| Volume | 19Issue:4Pages:317-325 |
| Contribution Rank | 1 |
| Abstract | 射电天文是通过接收和处理无线电波以此研究宇宙天体的一门学科，微波接收机则是射电天文观测的核心接收设备。结合中国科学院新疆天文台南山25米射电望远镜现有K波段制冷接收机及未来Q波段毫米波观测需求，本论文提出一种K波段常温接收机研制，该接收机射频工作频率22～24.2 GHz，经混频最终输出3.95～6.15 GHz的中频信号，主要用于在K波段开展强度校准方法实践及大气不透明度测量。最终采用冷热负载法测试K波段常温接收机噪声温度为402.2 K（理论计算为410.6 K），标准噪声源为166.3 K也满足设计需求，结合斩波轮校准机械结构，该K波段接收机已经具备开展强度校准及大气不透明度测试功能，相关工作也可为南山25米射电望远镜未来Q波段毫米波观测做技术预研。 |
| Other Abstract | Radio astronomy is a subject of studying cosmic objects by receiving and processing radio waves.Microwave receiver is the core receiving equipment of radio astronomy observation.Considering the present K-band cryogenic receiver and future Q-band millimeter-wave observation requirements of the Nanshan 25-meter radio telescope at the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences,this paper presents a design of a K-band room temperature receiver.The receiver works at 22-24.2 GHz and eventually outputs 3.95-6.15 GHz IF signal through mixing.It is mainly used for amplitude calibration method practice and atmospheric opacity measurement in K-band.Finally,the noise temperature of K-band room temperature receiver is 402.2 K (theoretical calculation is 410.6 K),and the standard noise source is 166.3 K.Combining with the mechanical structure of chopper wheel calibration,the K-band receiver has the functions of amplitude calibration and atmospheric opacity measurement,and this work can pre-research on technology for Q-band millimeter-wave observations of Nanshan 25 m radio telescope for the future. |
| Keyword | 接收机 射电天文 K波段 强度校准 不透明度 |
| DOI | 10.14005/j.cnki.issn1672-7673.20210611.003 |
| Indexed By | CSCD |
| Language | 中文 |
| CSCD ID | CSCD:7263960 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5104 |
| Collection | 射电天文研究室_微波技术实验室 |
| Corresponding Author | 闫浩 |
| Affiliation | 1.中国科学院新疆天文台，新疆乌鲁木齐830011; 2.中国科学院射电天文重点实验室，江苏南京210033; 3.新疆微波技术重点实验室，新疆乌鲁木齐830011 |
| 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 | 王凯,闫浩,马军,等. 一种K波段接收机的研制[J]. 天文研究与技术,2022,19(4):317-325. |
| APA | 王凯.,闫浩.,马军.,陈卯蒸.,曹亮.,...&项斌斌.(2022).一种K波段接收机的研制.天文研究与技术,19(4),317-325. |
| MLA | 王凯,et al."一种K波段接收机的研制".天文研究与技术 19.4(2022):317-325. |
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| 王凯-2022-一种K波段接收机的研制.（2259KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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