基于IRA天线的辐射波模拟器天线辐射性能研究  

Research on Antenna Radiation Performance of Radiating-Wave Simulator Antenna Based on IRA

作　　者：王赟[1,2] 陈永光[2] 王庆国[2] 范丽思[2] 

机构地区：[1]装备学院研究生院,北京101416 [2]军械工程学院静电与电磁防护研究所,石家庄050003

出　　处：《微波学报》2012年第1期73-76,共4页Journal of Microwaves

基　　金：总装备部试验技术研究合作项目

摘　　要：将通常用于超宽带领域的IRA天线应用到辐射波电磁脉冲模拟器中,提出一种基于反射器脉冲辐射天线的核电磁脉冲辐射波模拟器,分析其天线结构,给出四种馈臂形式,通过仿真比较了四种馈臂形式天线的辐射效率、远场和近场波形以及频率增益特性。结果表明:该天线的低频辐射效率有待进一步提高;具有锥形渐缩形式馈臂的天线能产生较好的远场和近场波形。IRA天线相较笼形天线具有体积小、方向性好等优点,如果能进一步提高其低频辐射性能,IRA天线将成为理想的辐射波模拟器天线。This paper presents a new kind of NEMP （ nuclear electromagnetic pulse） radiating-wave simulator based on impulse radiating antennas （IRA）, which are usally used for ultra-wide band communication. Structure of this antenna is analyzed and four types of feed-arm are designed. Simulations are implemented to have a comparison with the radiant efficieneies, field waveforms and frequency-gain characteristic curves among the four types of antenna. Results suggest that ： the antennas have lower radiant efficiency in the low-frequency domain and the antenna with tapered feeding arms can generate bet- ter far-field and near-field waveforms. IRAs take advantages of small volume and better directivity than cage antennas. If the low-frequency radiation performance can be enhanced, IRAs will make the ideal antenna used for radiating-wave simulator.

关 键 词：核电磁脉冲 辐射波模拟器 脉冲辐射天线 双指数脉冲 

分 类 号：TN820[电子电信—信息与通信工程]