一种基于Q值理论的新型电小天线  

Novel electrically small antenna based on radiation Q theory

作　　者：赵旭东[1] 张小苗[1] 白雪[1] 李晋阳[1] 王银行[1] 

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

出　　处：《电波科学学报》2010年第4期757-760,共4页Chinese Journal of Radio Science

基　　金：国家自然科学基金(No.60671056)

摘　　要：基于Q值理论提出了一种新型电小单极子天线,通过综合添加短路条和圆形及矩形槽来降低谐振频率从而将天线尺寸减小到0.15λ(低频端对应的自由空间波长),在保证阻抗带宽为30%的条件下,该天线可获得约4dB的高增益,在整个工作频带内具有稳定的水平全向方向图。A novel electrically small monopole antenna based on radiation Q theory is presented. The size of the antenna is reduced to 0.15λ by adding shorting straps, circle notches and rectangle slot. The antenna obtains a high gain of about 4 dB, and maintains a steady omnidirectional radiation pattern across the operation band while ensuring an impedance bandwidth of 30%.

关 键 词：Q值 水平全向 单极子 短路条 开槽 

分 类 号：TN82[电子电信—信息与通信工程]