基于遗传算法/矩量法的八木天线设计  

Design of Yagi antenna optimization based on genetic algorithm/moment method

作　　者：罗琦 史冰芸 

机构地区：[1]中航雷达与电子设备研究院,江苏无锡214063 [2]航空电子系统射频综合仿真航空科技重点实验室,江苏无锡214063

出　　处：《现代电子技术》2012年第13期85-87,90,共4页Modern Electronics Technique

摘　　要：遗传算法应用于天线设计时,需要和电磁场的数值方法相结合。从Pocklington方程出发,采用矩量法分析计算了八木天线各振子的电流分布、增益及方向图特性,以八木天线增益为目标,采用遗传算法对天线振子长度及振子间距进行了优化,得到了具有最佳增益的八木天线结构尺寸。实物测试结果表明该算法的可靠性及正确性。A Genetic algorithm（GA） should be integrated with numerical method of electromagnetic field in the design of antenna.With Pocklington Equation,the moment method is used to analyze features of Yagi antenna,including the current distribution of each dipole,the current gain and antenna pattern.With antenna gain as the goal,the GA is adopted to optimize the length and spacing of each dipole,and get the antenna structure which has the best gain size.The test results indicate the reliability and correctness of the algorithm.

关 键 词：遗传算法 矩量法 八木天线 天线增益 

分 类 号：TN965.234[电子电信—信号与信息处理]