在某相控阵天线设计中,需要对铅垂放置的天线单元的方向图赋形。本文采用最小二乘法得到天线单元各振子电流的幅度和相位,并用MATLAB进行方向图计算仿真;根据计算结果,设计了幅相分配网络,并用HSFF仿真软件进行模型仿真;应用矢量网络分析仪对实物进行测量。测量结果表明,天线单元铅垂方向图与计算、仿真结果一致,满足设计要求。 In the design of a phased array antenna, it is necessary to shape the pattern of the antenna unit placed vertically. In this paper, the amplitude and phase of the current of each element of the antenna unit are obtained by using the least-square method, and the direction diagram calculation and simulation is carried out by using MATLAB. According to the calculation result, the phase-sharing network is designed and modeled by HSFF simulation software. Make measurements. The measurement results show that the vertical pattern of the antenna element is consistent with the calculation and simulation results and meets the design requirements.