超宽带混合单极子介质谐振天线设计  

An Ultra Wideband Hybrid Monopole Dielectric Resonator Antenna

作　　者：冯奎胜[1] 李响[1] 徐长伟 张光磊 王鸿鹏 Feng Kuisheng;Li Xiang;Xu Changwei;Zhang Guanglei;Wang Hongpeng(School of Information and Navigation,Air Force Engineering University,Xi'an China 710077)

机构地区：[1]空军工程大学信息与导航学院,西安710077

出　　处：《测控与通信》2019年第3期1-4,共4页

摘　　要：设计1种超宽带混合单极子介质谐振天线,辐射体为半环形介质切片,由渐变的球形单极子作为激励。单极子天线工作在低频段,在单独辐射的同时激励起介质的高阶模式并谐振在高频段,通过调节渐变球形和介质环的结构尺寸,使得它们的频段相连接,从而达到增加天线频带宽度的效果。仿真结果表明:从5.3-11.9GHz天线-10dB阻抗带宽可以达到77%。A ultra wideband hybrid monopole dielectric resonator antenna is proposed in this paper.A half ring shaped dielectric resonator is selected as radiator,which excited by a graded spherical monopole element.The monopole excites the DR as the feeding mechanism and also acts as an effective radiator itself.By loading the monopole element in the vertical plane,the high-order modes are excited in the DR.The results illustrate that the proposed DRA has a-10 dB impedance bandwidth of 77% from 5.3 GHz to 11.9 GHz.

关 键 词：介质谐振天线 球形渐变 混合单极子 超宽带 高次模 

分 类 号：TN8[电子电信—信息与通信工程]