高辐射效率超宽谱脉冲辐射天线的设计与实验  

Design and experiment of high-radiant-efficiency ultrawide-spectrum pulse radiating antenna

作　　者：易超龙[1] 樊亚军[1] 丁臻捷[1] 袁雪林[1] 朱四桃[1] 卢彦雷[1] 夏文锋 石一平[1] 

机构地区：[1]西北核技术研究所高功率微波技术重点实验室,西安710024

出　　处：《强激光与粒子束》2014年第2期172-176,共5页High Power Laser and Particle Beams

摘　　要：设计了一种采用共面TEM馈电结构的抛物反射面超宽谱脉冲辐射天线,分析了该种馈电结构的阻抗特性与辐射特性。实验表明当馈入电压为3kV、前沿180ps的超宽谱脉冲时,该天线主轴辐射场测试距离与峰值场强之积平均值达到18.3kV,相较于常用的TEM喇叭馈电的超宽带反射面天线,其辐射效率有了显著的提高。An ultrawide band paraboloidal reflector antenna for ultra high repetition pulse has been developed. For impro- ving radianl efficiency, the antenna adopted a new coplanar TEM feed structure, and the impedance and radiation characteristics were analyzed. Results show that the rEp value is about 18.3 kV and rEpp value is about 35.7 kV when the antenna is excited by a pulse of 180 ps risetirne and 3 kV peak voltage. Compared with those antennas with TEM horns, this kind of antenna has the best radiating property.

关 键 词：抛物反射面天线 超宽带 脉冲 高辐射效率 

分 类 号：TB822.8[一般工业技术—摄影技术]