基于NSGA-Ⅱ的宽带天线匹配网络设计  

Design of Broadband Antenna Matching Network by NSGA-Ⅱ

作　　者：宋智[1,2] 李焱淼[3] 许丽群[2] 朱义胜[1] 

机构地区：[1]大连海事大学信息科学技术学院,辽宁大连116026 [2]大连交通大学电气信息学院,辽宁大连116028 [3]大连交通大学理学院,辽宁大连116028

出　　处：《大连交通大学学报》2012年第2期100-103,共4页Journal of Dalian Jiaotong University

基　　金：国家自然科学基金资助项目(50877004)

摘　　要：针对天线宽带匹配网络的设计,各种不同的方法相应地被提出,其中对天线的输入阻抗进行匹配是一种有效的方法.利用精英保留非劣排序遗传算法(NSGA-II)设计宽带天线匹配网络,实现网络输入端口反射系数和传输功率增益的多目标优化.仿真实验表明,所设计的宽带天线匹配网络具有随天线阻抗变化灵敏度低的优点,天线效率达到50%以上,证明了NSGA-II算法的有效性.Different design methods are proposed for the broadband antenna matching network, in which matching the input impedance of the antenna is an effective way. The broadband antenna matching network are designed by utilizing Non-dominated Sorting Genetic Algorithm II （NSGA-II）. Multi-objective optimization of the input reflectance and the transmission power gain are realized. Simulation results show that the designed anten- na matching network has the advantage of less sensitivity with varying antenna impedances, and its the efficiency researches above 50%, which proves the validity of the NSGA-II.

关 键 词：宽带匹配网络 多目标优化 NSGA-II 

分 类 号：TN822[电子电信—信息与通信工程]