介质杆天线的时域特性分析  

Analysis of ultra-wide band rod dielectric antenna in time-domain

作　　者：叶红霞[1] 蒋延生[1] 汪文秉[1] 师振盛[1] 

机构地区：[1]西安交通大学微波工程与光通信研究所,陕西西安710049

出　　处：《电波科学学报》2003年第4期413-417,共5页Chinese Journal of Radio Science

摘　　要：超宽带技术在通信、雷达等众多领域获得广泛应用,时域天线是其关键技术。对介质杆天线用作时城天线的可行性进行了分析,并给出选择介质杆参数的依据。同时还使用FD-TD(时域有限差分法)数值计算方法分析了在超宽带情况下介质杆的直径、激励方式及终端渐变方式对天线的传播特性及辐射特性的影响。分析表明这种天线适宜用作时域天线。Ultra-wide band (UWB) technology is widely used in many fields such as communication and radar. Time-domain antenna is important for UWB technology. This paper analyzes the feasibility of the use of rod dielectric antenna in time-domain and presents how to choose the design parameters. The affection of antenna parameters, such as diameter, stimulation and taper, on propagation and radiation characteristics are analyzed by using the FDTD method. The results demonstrate that rod dielectric antenna can be used for time-domain antenna.

关 键 词：介质杆天线 时域天线 超宽带天线 波形畸变 时域有限差分法 

分 类 号：TN826[电子电信—信息与通信工程]