基于遗传算法的高性能赋形天线优化设计

Optimized Design of High Performance Shaped Antenna Based on Genetic Algorithm

为了在服务区内获得良好的性能,提出了一种新的赋形波束天线优化设计方法。采用对反射面的形状和偏转角度进行联合优化的方法来解决卫星天线布局和性能之间的矛盾。优化过程中将反射面的形变量和偏转角度作为优化变量,然后利用遗传算法对其进行优化从而实现更高的增益和交叉极化隔离度。最终利用该算法对一个赋形波束天线进行了优化设计和分析,仿真结果说明了该优化方法的有效性。

To achieve good performance in the service area, a new design of shaped antenna is presented in this paper. The inconsistency between the performance and spatial layout is resolved by optimizing the surface and deflection angle of the reflector. In the optimization, the distortions of the surface and the rotating angle are set as variables, and then the genetic algorithm is used to achieve higher gain and cross-polarization isolation. In the end, a simulation is performed to illustrate the efficiency of the method.