基于偏置抛物面天线结构设计方法的研究

Study on Structural Design Method of Offset ParabolicReflector Antennas

摘要: 偏置抛物面天线避免了馈源的遮挡损耗，使得天线效率提高，同时也具有结构简单的优点，在现代卫星通信地面固定站中广泛使用。本文提出一种偏置抛物面天线结构设计的方法，与传统的设计方法相比较，在限定的物理尺寸下，能够保证天线具有最大的有效面积。本文还将对截取的抛物面进行坐标系变换的推导求解。

Abstract: The offset reflector antennas avoid blocking the feed of cover loss, improving the efficiency of the antenna with simple structure, and are applied widely in fixed ground station of modern satellite communications. This paper presents a way of designing an offset reflector antenna. Comparing with classical method, the antenna designed in this paper can make sure that it has the maximum effective area under limited physical size. The coordinate transformation of the intercepted ref-lector is also carried out in this paper.