论文部分内容阅读
为了更加直接有效地通过调整副面位置来提高双反射面天线的电性能，基于机电耦合思想，建立了副面位置调整量与远场电性能间的直接关系式，分析了副面横向和纵向位置偏差的影响。采用优化方法建立了副面位置调整量优化模型，获得了多个仰角时的副面最佳位置。为实现全仰角范围副面位置的实时调整，对多个仰角副面位置调整参数进行了参数拟合。以 26 m 天线为对象进行了案例分析，其结果表明采用文章所述方法能够直接有效地获得不同工况时的副面最佳调整参数,并实现电性能的最优化，对天线结构重力变形进行有效地主动补偿。
In order to improve the electrical performance of the dual reflector antenna more directly and effectively by adjusting the position of the secondary reflector, a direct relation between the position adjustment of the secondary reflector and the electrical performance in the far field is established based on the idea of electromechanical coupling. Effect of position deviation. The optimization method was used to establish the optimization model for the position adjustment of the secondary surface and the optimal position of the secondary surface when multiple elevation angles were obtained. In order to realize the real-time adjustment of the position of the secondary side of the full elevation range, parameter fitting was performed on the position adjustment parameters of multiple secondary elevation positions. The case study of a 26 m antenna was carried out. The results show that the optimal adjustment parameters of the sub-surface under different conditions can be directly and effectively obtained by using the method described in the article, and the optimization of the electrical performance can be achieved. The gravity deformation of the antenna structure Actively compensate.