基于简化实频方法的宽带天线阻抗匹配网络设计  

Design of broadband antenna impedance matching network based on simplified real frequency technique

作　　者：武军伟[1] 龚子平[1] 万显荣[1] 柯亨玉[1] 

机构地区：[1]武汉大学电子信息学院电波传播实验室,湖北武汉430079

出　　处：《电波科学学报》2011年第2期382-387,共6页Chinese Journal of Radio Science

基　　金：863计划项目(2009AA12Z125);国家自然科学基金(60971101;41074116)

摘　　要：给出了一种便于工程应用的宽带天线阻抗匹配网络设计方法。在简化实频方法的基础上通过遍历不同网络阶数和零频传输零点阶数下的优化过程,避免了简化实频方法中丢失潜在优良解的问题。设计过程引入对网络的匹配性能和物理实现难易程度的权衡考虑,从所有优化结果中选择最终方案,具有较大的工程实用价值。针对一个实际小型短波宽频带天线的阻抗匹配问题,运用该方法设计了匹配网络并进行了测量,结果表明:文中所给出的方法是有效和实用的。This paper proposes a method for the design of broadband antenna im- pedance matching networks. Based on the simplified real frequency technique, the method traverses optimizing procedures under different network orders and different number of transmitting zeros located at the origin, and avoids the miss of potential good solutions in the simplified real frequency technique. Trade-off between the network matching performance and physical realizing difficult degree is introduced into the designing procedure, and the final solution is chosen from all the optimized results. Consequently, the method is flexible and well suitable for engineering applications. Utilizing this method, a network for matching a small profile shortwave broadband antenna is designed and measured. The result shows that the method is effective and practical.

关 键 词：宽带匹配网络 实频法 宽带天线 网络综合 

分 类 号：TN822.8[电子电信—信息与通信工程]