The Active Compensation Technique for Large Reflector Antennas Based on Quadratic Curve Fitting

• Published in: Research in astronomy and astrophysics Vol. 24; no. 7; pp. 75018 - 234
• Main Authors: Zheng, Tian-Xiang, Xiang, Bin-Bin, Cui, Han-Wei, Wang, Wei, Lian, Pei-Yuan, Lin, Shang-Ming, Zhang, Yang, Zhou, Jian-Ping, Li, Kai
• Format: Journal Article
• Language: English
• Published: Beijing National Astromonical Observatories, CAS and IOP Publishing 01.07.2024; IOP Publishing; School of Mechanical Engineering,Xinjiang University,Urumqi 830017,China%School of Mechano-Electronic Engineering,Xidian University,Xi'an 710017,China%Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi'an 710119,China
• Subjects: Actuators; Antennas; Compensation; Curve fitting; Environmental factors; Finite element analysis; Finite element method; Geometrical optics; High gain; Least squares method; Matrix methods; Methods: analytical; Methods: numerical; Optics; Panels; Polynomials; Reflector antennas; Reflectors; Surface distortion; Telescopes; Methods:analytical; Methods:numerical; Telescopes

Active reflectors are often used to compensate the surface distortion caused by environmental factors that degrade the electromagnetic performance of large high-frequency reflector antennas. This is crucial for maintaining high gain operation in antennas. A distortion compensation method for the act...