二乘五焦点抛物反射面天线的设计

The design of squares five focus parabolic reflector antenna

本文基于改进的多焦点抛物反射面天线设计方法,对反射面进行赋形,设计了二乘五焦点抛物反射面天线,研究此种多焦点抛物面设计方法在馈源二维排布时的可行性,并从交迭电平、扫描范围、口径效率、C/I对仿真结果进行分析。结果表明,二乘五焦点抛物反射面在这四个方面上的性能都要优于标准偏置反射面。由此证明改进的多焦点抛物反射面天线设计方法在馈源二维排布情况下也是可行的。

Based on the improved multifocal parabolic reflector antenna design method, this article shapes the reflector surface and designs squares five focus parabolic reflector antenna. So we can know whether this multifocal parabolic design approach can be applied to the case of two-dimensional arrangement of the feed. In addition ,we analyze the simulation results from four aspects：overlapping level, scanning range, aperture efficiency, C/I. The results show that the performance of five squares parabolic reflector is better than the standard offset reflector in these four aspects. Therefore,we can identify that the improved multifocal parabolic reflector antenna design approach is feasible in the situation of two-dimensional feed arrangement.