不同渐变方式的喇叭结构对电-磁振子组合型超宽带天线特性的影响  

Influence of horn structure on electric-magnetic vibrator combined UWB antenna characteristic

作　　者：原艳宁[1] 席晓莉[1] 樊亚军[2] 

机构地区：[1]西安理工大学自动化与信息工程学院,西安710048 [2]西北核技术研究所,西安710024

出　　处：《强激光与粒子束》2007年第6期971-974,共4页High Power Laser and Particle Beams

基　　金：国家863计划项目资助课题

摘　　要：电-磁振子组合型超宽带(UWB)天线的物理结构包括3部分:天线的馈电系统、TEM喇叭辐射单元和电流环辐射单元。采用CST MICROWAVE STUDIO电磁场数值计算软件,对该组合型天线的结构与端口S参数和时域辐射特性的关系进行了分析。仿真结果表明:当TEM喇叭辐射单元和电流环辐射单元由3段金属板构成时,天线的端口S参数较小,主轴辐射功率较大,方向性较好。The electric-magnetic vibrator combined uhrawideband antenna consist of three parts： feed-in system,TEM horn radiation unit and current loop radiation unit. Applying CST electromagnetic software, the relation between physical structure and port S parameter and the radiation characteristic in time domain of the electric-magnetic vibrator combined uhrawideband （UWB） antenna were investigated. The results indicate that when the TEM horn radiation unit and current loop radiation unit are divided three parts, the antenna has smaller port S parameter, larger power on main axis and it has better direction.

关 键 词：UWB天线 电-磁振子 喇叭 S参数 辐射特性 CST软件 

分 类 号：TN822.8[电子电信—信息与通信工程]