大垂直口径天线俯仰波束赋形设计  

Shaped Elevation Beam Design of a Large Vertical Aperture Antenna

作　　者：张驿[1] 梁宇宏[2] 张云[2] 温剑[2] 何海丹[2] 

机构地区：[1]海军装备部重庆局,重庆405200 [2]中国西南电子技术研究所,成都610036

出　　处：《电讯技术》2013年第5期650-655,共6页Telecommunication Engineering

摘　　要：给出了一种大垂直口径天线俯仰波束的优化设计过程。大垂直口径天线由10个辐射阵元构成,可以看成为一个阵列。为使天线的辐射波束达到给定的波束要求,提出了一种改进的遗传算法及其目标函数模型,对各辐射阵元的馈电幅度和相位同时进行优化。计算结果显示,天线能够产生满足设计要求的俯仰波束。通过全波电磁仿真软件HFSS进行了验证,仿真结果与计算结果吻合,证明了所提方法的有效性和实用性。Optimization and design process for shaped elevation beam of a large vertical aperture（LVA） antenna is presented. The LVA antenna consists of 10 radiation elements. In order to form a given antenna pattern for LVA antenna, an improved genetic aigorithm（GA） and its weight objective function model are proposed, which are applied to optimize the amplitudes and phases of the currents of the radiating elements. Calculated result shows that the elevation radiation pattern meets the design requirement. The simulated result by using full-wave EM field simulator HFSS is in a good agreement with the pre-numerieal result, which proves the validity and practicability of the proposed method.

关 键 词：二次雷达 大垂直口径天线 遗传算法 辐射方向图 赋形波束 

分 类 号：TN958.96[电子电信—信号与信息处理] TN82[电子电信—信息与通信工程]