一种双频段圆锥喇叭天线的设计  

Design of dual band conic horn antenna

作　　者：陈腾博[1] 刘琳琳[2] 焦永昌[1] 张福顺[1] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,陕西西安710071 [2]禁核试北京国家数据中心,北京100085

出　　处：《电波科学学报》2007年第6期991-994,共4页Chinese Journal of Radio Science

基　　金：国家自然科学基金(60171045)

摘　　要：介绍了一种双频段圆锥喇叭天线的设计。作为星载阵列天线单元的圆锥喇叭天线需要满足20/30GHz双频段工作的需要。此处采用在光壁圆锥喇叭内加载一个外形渐变的金属柱体来改变天线的输入阻抗,调节金属柱体的尺寸,包括两端的口径和长度,可以在要求的频段得到理想的输入阻抗。仿真分析和实验测试结果说明该天线具有满意的频带特性和方向图特性。As the element of satellite borne antenna, one new kind of conic horn antenna worked at 20/30 GHz dual band is designed in this paper. By considering a metalcylinder with a shape changed gradually into the conic horn, the input impendence can be changed. By modeling the parameters of metal cylinder such as the diameters of both ports and the length of the metal cylinder, the demand input impedance of the conic horn can be obtained. Both simulation results and measurement results show that the satisfied impedance and pattern characteristics for interested bands are obtained.

关 键 词：圆锥喇叭天线 双频段 金属柱体 

分 类 号：TN821[电子电信—信息与通信工程]