摘要
讨论了矩形微带天线的传输线模型、遗传算法的编码方式、适应度函数的设计等,提出了一种利用遗传算法优化结果设计矩形微带天线的方法。利用反射系数,设计了简单的适应度函数,采用小规模的初始种群,加速了程序的收敛速度。仿真结果表明,遗传算法优化设计微带天线,可使反射系数小于-25dB、增益大于5.5dB。
The transmission line model of the rectangular microstrip antennas, the coding mode of genetic aigorithm（GA） and the design of fitness function are discussed,then a method using GA optimization results to design rectangular microstrip antennas is proposed. By using the reflection coefficients a simple fitness function is designed, and using small initial population the convergence rate of the program is accelerated. Simulation results show that using GA to optimize and design microstrip antennas can make the reflection coefficients less than -25dB and the gain larger than 5.5dB.
出处
《电讯技术》
北大核心
2009年第11期62-65,共4页
Telecommunication Engineering
基金
黑龙江省教育厅科研项目(10553113)
关键词
矩形微带天线
遗传算法
适应度函数
收敛速度
rectangle microstrip antenna
genetic algorithm （GA）
fitness function
convergence rate
