高功率楔形介质填充天线设计  

Design of a high-power wedge-shaped dielectric antenna

作　　者：郭晨[1] 张安学[1] 蒋延生[1] 汪文秉[1] 

机构地区：[1]西安交通大学微波与光通信研究所,西安710049

出　　处：《强激光与粒子束》2008年第7期1134-1136,共3页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(60501004)

摘　　要：针对高功率超宽带天线应用中的绝缘性及方向性等关键问题,设计了一种基于TEM喇叭天线形式的楔形介质填充天线,并利用时域有限差分数值方法分析了这种新型介质填充天线的辐射性能。数值模拟与测试结果表明,所设计的这种楔形介质填充天线不仅可以满足高功率天线的绝缘性要求。A novel UWB horn antenna based on TEM horn structure with wedge-shaped dielectric-filling is investigated. For the wedge-shape dielectric-filling horn antenna, it is found that the radiation energy converged in the dielectric-filling region, thus the radiation field in the direction of the horn axis is improved. Moreover, the appropriate filling of insulating dielectric could prevent the antenna from electric breakdown. The finite difference time domain（FDTD） numerical analysis approach has been adopted to simulate the proposed antenna and the results indicate that it is well suited to high power UWB applications.

关 键 词：高功率超宽带电磁脉冲 时域有限差分 TEM喇叭天线 楔形介质填充天线 

分 类 号：TN82[电子电信—信息与通信工程]