Title :
A method for panel adjustment from far field pattern of large reflector antenna
Author :
Wang, Wei ; Li, Peng ; Song, Liwei
Author_Institution :
Sch. of Electromech. Eng., Xidian Univ., Xi´´an, China
Abstract :
On the inefficient panel adjustment of large reflector antenna, a method for determination of panel adjustment magnitude according to far field pattern is presented. Using the method of Physical Optics (PO), the relationship between the far field value and the node displacement is derived. Then the panel adjustment vector is related to far field pattern with linear equations. Singular value decomposition (SVD) is used to find out a vector of panel adjustment quantity. The method is validated on a 3.7 m reflector antenna with 12 panels. Some related data and figures are obtained, from which it is found that the error is less than 11%. The method is going to be useful guide for panel adjustment of large reflector antenna efficiently and precisely.
Keywords :
antenna radiation patterns; physical optics; reflector antennas; singular value decomposition; far field pattern; large reflector antenna; linear equations; node displacement; panel adjustment magnitude determination method; physical optic method; singular value decomposition; size 3.7 m; Antenna measurements; Automation; Equations; Extraterrestrial measurements; Mechatronics; Optical surface waves; Physical optics; Reflector antennas; Singular value decomposition; Vectors; Antenna radiation patterns; Panel adjustment; Reflector antennas; Singular value decomposition (SVD);
Conference_Titel :
Mechatronics and Automation, 2009. ICMA 2009. International Conference on
Conference_Location :
Changchun
Print_ISBN :
978-1-4244-2692-8
Electronic_ISBN :
978-1-4244-2693-5
DOI :
10.1109/ICMA.2009.5244789
