基于粒子群算法的3频Wilkinson功分器优化设计  

Design of Tri-band Wilkinson Power Divider Based on Particle Swarm Optimization

作　　者：张毅[1] 陈明[2] 张晨露[1] 梁丽君[1] 

机构地区：[1]西安邮电大学通信与信息工程学院,西安710061 [2]西安邮电大学电子信息工程所,西安710121

出　　处：《微波学报》2013年第2期82-86,共5页Journal of Microwaves

摘　　要：提出一种3频等分Wilkinson功率分配器(WPD)优化设计方法,该3频Wilkinson功率分配器由3节微带线和3个隔离电阻构成,根据理想传输线模型并利用奇偶模分析方法推得出设计方程,采用粒子群算法进行优化设计,有效提高功分器设计效率与准确性。为了验证设计的正确性,采用材料聚四氟乙烯(ε=3.65)作为基板设计出在0～4GHz 3频等分Wilkinson功分器,实验测试结果显示该功分器在所规定的全部频点拥有良好匹配与隔离度,说明粒子群算法在多频功分器设计中良好的应用。A tri-band Wilkinson Power Divider using particle swarm optimization is presented. The WPD is composed by tri-section transmission lines and tri-isolation resistances,the design equations are obtained with the concept of the evenodd modes and transmission line analysis. Using particle swarm optimization to improve the efficiency and accuracy of the power divider design. Samples of tri-band WPD with 0 ~ 4GHz operating frequencies are presented. The method is verified by the simulation and test results. The results show that WPD on the designed frequencies have a good impedances matching and isolation. It shows that the particle swarm algorithm has a good application in multi-frequency divider design.

关 键 词：WILKINSON功分器 微带线 多频带 粒子群优化算法 

分 类 号：TN626[电子电信—电路与系统]