摘要
采用威尔金森(Wilkinson)功分器和宽带移相器级联的馈电网络具有良好的功分移相特性,可用于多模导航天线的设计.首先对馈电网络的宽带移相器进行了理论分析,然后采用HFSS软件对其短路及开路支节的参数进行了仿真,分析了其参数变化对馈电网络功分及移相特性的影响.仿真结果表明,优化参数的尺度可使馈电网络获得更宽的功分移相特性.
The feed network with cascade of Wilkinson power divider and wideband phase shifter has better performance on dividing power and shifting phase,which can be used for the design of multi-mode navigation antenna.The theoretical analysis of the wideband phase shifter in the feed network is done,then,the parameters of short-circuit and open-circuit branches are simulated by using HFSS software,and finally,the influences of their parameters changing on the power dividing and phase shifting characteristics of the feed network are analyzed in this paper.Simulation results show that the extent of optimizing the parameters can determine the wider performance on power dividing and phase shifting in the feed network.
出处
《空军雷达学院学报》
2012年第6期431-433,450,共4页
Journal of Air Force Radar Academy
关键词
宽带馈电网络
功分器
移相器
wideband feed network
power divider
phase shifter
