基于改进自适应演化算法的微波电路优化设计  

Optimal Design of Microwave Circuits Based on the Improved Adaptive Evolvement Arithmetic

作　　者：陈伟[1] 许小艳[1] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,陕西西安710071

出　　处：《电子科技》2005年第12期12-15,共4页Electronic Science and Technology

摘　　要：对自适应演化算法进行了改进,修改了变异操作中分量值会超出定义域范围的错误,改善了重组操作并不一定产生更优后代的缺点,从而大大提高了收敛到全局最优解的概率。通过将此两种算法引入微波电路的设计中,通过结果对照,证明了改进算法的优良特性。The adaptive evolvement arithmetic is introduced first, then the improved arithmetic is proposed which solves the problem that the offspring will overrun the defining region in the mutation operation, and overcomes the defect that reforming operation does not always generate advanced offspring, thus greatly increasing the probability of converging to a globally optimal solution. The improved arithmetic is introduced into the optimal design of microwave circuit. A comparison with the unmodified arithmetic shows that the improved arithmetic has better performance.

关 键 词：自适应演化算法 阶梯阻抗变换器 最优化 

分 类 号：TM13[电气工程—电工理论与新技术]