Institutional Repository of Radio Astronomy Research Laboratory
| Optimal subreflector position determination of shaped dual-reflector antennas based on the parameters iteration approach | |
Xiang, Bin-Bin1,2 ; Wang, Cong-Si1; Lian, Pei-Yuan1; Wang, Na2; Ban, You1
| |
| 2019-04-01 | |
| Source Publication | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| ISSN | 1674-4527 |
| Volume | 19Issue:4Pages:62 |
| Contribution Rank | 2 |
| Abstract | A new method based on the parameters iteration technique has been developed to determine the optimal subreflector position for shaped Cassegrain antennas, that are distorted by gravity, to improve their electromagnetic (EM) performance. Both the features of shaped surface and the relationship between optical path difference (OPD) and far field beam pattern are employed. By describing the shaped dual-reflector surface as a standard discrete parabola set, we can utilize the optical features of the standard Cassegrain system in the classical OPD relationship. Then, the actual far field beam pattern is expressed as the synthesis of ideal beam and error beam by decomposing subreflector adjustment parameters using a mechanical-electromagnetic-field-coupling-model (MEFCM). Furthermore, a numerical method for determining optimal subreflector position is presented. The proposed method is based on the iteration technique of subreflector adjustment parameters, and the optimal far field pattern is used for the iteration. The numerical solution of optimal adjustment parameters can be obtained rapidly. Results for a 25 m shaped Cassegrain antenna demonstrate that the adjustment of the subreflector to the optimal position as determined by the proposed method can improve the EM performance effectively. |
| Keyword | methods: analytical methods: numerical telescope techniques: radar astronomy |
| DOI | 10.1088/1674-4527/19/4/62 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Basic Research Program of China[2015CB857100] ; Chinese Academy of Sciences (CAS) Light of West China Program[2017-XBQNXZ-B-021] ; National Natural Science Foundation of China[51805399] ; National Natural Science Foundation of China[U1737211] ; Natural Science Foundation of Shanxi Province[2018JZ500] ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments from the Ministry of Finance of China (MOF) |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:000463893700014 |
| Publisher | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| Funding Organization | National Key Basic Research Program of China ; Chinese Academy of Sciences (CAS) Light of West China Program ; National Natural Science Foundation of China ; Natural Science Foundation of Shanxi Province ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments from the Ministry of Finance of China (MOF) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/2601 |
| Collection | 射电天文研究室_天线技术实验室 110米口径全可动射电望远镜（QTT）_110米大口径全可动射电望远镜关键技术研究（973项目）_课题4：反射面高精度快速测量与主动面实时闭环修正 |
| Corresponding Author | Wang, Cong-Si |
| Affiliation | 1.Xidian Univ, Sch Mechanoelect Engn, Key Lab Elect Equipment Struct Design, Minist Educ, Xian 710071, Shaanxi, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Xiang, Bin-Bin,Wang, Cong-Si,Lian, Pei-Yuan,et al. Optimal subreflector position determination of shaped dual-reflector antennas based on the parameters iteration approach[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2019,19(4):62. |
| APA | Xiang, Bin-Bin,Wang, Cong-Si,Lian, Pei-Yuan,Wang, Na,&Ban, You.(2019).Optimal subreflector position determination of shaped dual-reflector antennas based on the parameters iteration approach.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,19(4),62. |
| MLA | Xiang, Bin-Bin,et al."Optimal subreflector position determination of shaped dual-reflector antennas based on the parameters iteration approach".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 19.4(2019):62. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Xiang-2019-Optimal s（13403KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment