多目标方法的天线相位中心计算分析

通常的天线相位中心计算是求解单个切面内的相位中心,该方法适用于天线色散、各切面内相位中心不重合的情况。本文提出一种多目标规划的天线相位中心计算方法,通过截取主波束一定范围内的多个切面,将该区域范围内的相位中心求解转化为多目标规划的最优值问题。该方法不仅适用于单切面的相位中心求解,也适用于求解主波束范围内的相位中心。使用HFSS对一个圆极化天线进行仿真计算,并利用文中方法求解其相位中心,计算的结果证实了该方法的有效性。

Analysis on Antenna Phase Center Calculation Based on Multi-Objective Method

Traditional methods of antenna phase center are the calculation of the phase center of single cutting plane, which is proper for antenna dispersion and in the condition of the different phase centers in different cutting planes. An antenna phase center calculation method based on multi-objective programming is proposed in this paper. By obtaining multiple cutting planes in the main lobe, the calculation of antenna phase center is changed into the optimal value of multi-objective programming. Compared with traditional methods, the proposed method is not only fit for the phase center of single plane, but also fit for the phase center of the antenna main lobe. A circularly polarized antenna is simulated using HFSS and the proposed method is used to calculate the phase center. The validity of this method is approved by the calculated results