基于遗传算法的相控阵天线口径激励的多阶振幅量化  

The Multiple-Step Amplitude Quantization of Phased Array Excitement Based on Genetic Algorithm

作　　者：汪一心[1] 朱桓[1] 徐晓文[1] 李世智[1] 

机构地区：[1]北京理工大学电子工程系,北京100081

出　　处：《微波学报》1999年第4期391-395,共5页Journal of Microwaves

摘　　要：本文利用二进制编码的遗传算法实现天线阵口径激励的振幅量化。该方法考虑了互耦的影响和大扫描角的情况，计算实例为98单元偶极子线阵，它安装在理想反射面上，单元距离反射面λ0／4，采用7阶振幅量化。在不扫描情况下可达到峰值副瓣-35dB，在60°扫描角情况下可达-30dB。A method which uses Genetic Algorithm to accomplish the amplitude quantizationof array antenna excitement is described. This method takes the mutual effect and the case of largescan angle into consideration. The given example is,a 98-element dipole antenna which is mountedon an ideal reflection surface. When 7-step quantization is adopted, - 35dB sidelobe level at 0 degree scan angle,and - 30dB sidelobe level at 60 degree scan angle will be achieved.

关 键 词：相控阵天线 振幅量化 遗传算法 口径 激励 

分 类 号：TN821.8[电子电信—信息与通信工程]