Effect of Facet Displacement on Radiation Field and Its Application for Panel Adjustment of Large Reflector Antenna

doi:10.1007/s10033-017-0135-z

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	Effect of Facet Displacement on Radiation Field and Its Application for Panel Adjustment of Large Reflector Antenna
	Wang, Wei 1,2; Lian, Peiyuan 1; Zhang, Shuxin 1,2; Xiang, Binbin1,3 ; Xu, Qian3
刊名	Chinese Journal of Mechanical Engineering
	2017-05-01
卷号	30 期号:3 页码:578-586
关键词	Reflector antennas Surface accuracy Radiation field Reflector antenna mechanical factors Electromechanical effects Panel adjustment Singular value decomposition (SVD) microwave holography surface measurement radio telescope deformation metrology matrix Engineering
ISSN号	1000-9345
DOI	10.1007/s10033-017-0135-z
产权排序	3
文献子类	Article
英文摘要	Large reflector antennas are widely used in radars, satellite communication, radio astronomy, and so on. The rapid developments in these fields have created demands for development of better performance and higher surface accuracy. However, low accuracy and low efficiency are the common disadvantages for traditional panel alignment and adjustment. In order to improve the surface accuracy of large reflector antenna, a new method is presented to determinate panel adjustment values from far field pattern. Based on the method of Physical Optics (PO), the effect of panel facet displacement on radiation field value is derived. Then the linear system is constructed between panel adjustment vector and far field pattern. Using the method of Singular Value Decomposition (SVD), the adjustment value for all panel adjustors are obtained by solving the linear equations. An experiment is conducted on a 3.7 m reflector antenna with 12 segmented panels. The results of simulation and test are similar, which shows that the presented method is feasible. Moreover, the discussion about validation shows that the method can be used for many cases of reflector shape. The proposed research provides the instruction to adjust surface panels efficiently and accurately.
语种	英语
WOS记录号	WOS:000400857300008
内容类型	期刊论文
源URL	[http://ir.xao.ac.cn/handle/45760611-7/3241]
专题	射电天文天线组
作者单位	1.Key Laboratory of Electronic Equipment Structure Design of Ministry of Education, Xidian University, Xi’an 710071, China; 2.Collaborative Innovation Center of Information Sensing and Understanding, Xidian University, Xi’an 710071, China; 3.Xinjiang Astronomical Observation, Chinese Academy of Sciences, Urumqi 830011, China
推荐引用方式 GB/T 7714	Wang, Wei,Lian, Peiyuan,Zhang, Shuxin,et al. Effect of Facet Displacement on Radiation Field and Its Application for Panel Adjustment of Large Reflector Antenna[J]. Chinese Journal of Mechanical Engineering,2017,30(3):578-586.
APA	Wang, Wei,Lian, Peiyuan,Zhang, Shuxin,Xiang, Binbin,&Xu, Qian.(2017).Effect of Facet Displacement on Radiation Field and Its Application for Panel Adjustment of Large Reflector Antenna.Chinese Journal of Mechanical Engineering,30(3),578-586.
MLA	Wang, Wei,et al."Effect of Facet Displacement on Radiation Field and Its Application for Panel Adjustment of Large Reflector Antenna".Chinese Journal of Mechanical Engineering 30.3(2017):578-586.