摘要
反射面天线广泛应用于射电天文、卫星通信等领域,其电性能与结构制造工艺、安装误差和环境载荷等因素间存在极为复杂的影响关系,因此随着天线口径增大、频段提高,天线设计制造的难度也在不断增加.为突破该技术难题,本文围绕反射面天线机电耦合理论建模与补偿技术发展现状,从误差分类角度分别概述了主面、副面结构变形及馈源位姿偏移等误差对天线电性能的影响,从主动反射面、阵列馈源等技术手段出发,梳理了反射面天线在服役过程中的全路径电性能补偿方法.这些现状梳理,有助于理论方法的创新,更好地完成天线设计,有助于准确预测天线服役性能,更有效地实现全工况下的综合补偿,达到天线的性能指标.
Reflector antennas are extensively used in radio astronomy,satellite communication,and other industries;however,a complex interaction exists between their electrical performance and structure manufacturing process,installation errors,environmental loads,and other factors;thus,with the increase of antenna aperture and frequency band,the difficulty of antenna design and manufacturing increases.To address this technical issue,this paper focuses on the current state of reflector antenna electromechanical coupling theory modeling and compensation technology development and outlines the impact of errors on antenna electrical performance,such as main and subreflector deformation of the structure and feed source position offset from the angle of error classification.The paper also sorts out the full-path electrical performance compensation method of reflector antenna in service from active main and sub-surface technique,array feed technology,and other methods.A review of the current state of affairs aids in the development of theoretical methods and the creation of more complete antenna designs.It also allows for more accurate prediction of antenna service performance and more effective achievement of comprehensive compensation under full working conditions,ultimately assisting in achieving the performance index of the antenna.
作者
王伟
顾原冰
王祖铧
王娜
古丽加依娜·哈再孜汗
WANG Wei;GU YuanBing;WANG ZuiHua;WANG Na;GULJAINA Kazezkhan(Key Laboratory of Electronic Equipment Structure Design,Ministry of Education,Xidian University,Xi’an 710071,China;Shaanxi Key Laboratory of Space Solar Power Station System,Xidian University,Xi’an 710071,China;Xinjiang Astronomical Observatory,Chinese Academy of Sciences,Urumqi 830011,China)
出处
《中国科学：物理学、力学、天文学》
CSCD
北大核心
2024年第1期2-18,共17页
Scientia Sinica Physica,Mechanica & Astronomica
基金
国家重点研发计划(编号:2021YFC2203501)
国家自然科学基金(编号:52275270)
陕西省自然科学基础研究计划(编号:2023-JC-JQ-38,2020JM-179)资助项目。
关键词
反射面天线
机电耦合
全路径
误差
补偿
reflector antenna
electromechanical coupling
full-path
error
compensation
