一种基于分形结构的超宽带天线研究  

A Study of a Ultra-wide Band Antenna Base on Fractal Structure

作　　者：李迎松[1] 苏畅[1] 牛朝[1] 杨晓冬[1] 刘乘源[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《系统仿真技术》2010年第2期85-87,99,共4页System Simulation Technology

基　　金：科技部中小企业技术创新基金资助项目(08C26212301759);哈尔滨市科技创新人才专项基金资助项目(2009RFKXG010)

摘　　要：基于微带天线和分形天线的基本理论,采用正方形和圆形交替的方法设计了用于超宽带(UWB)通信的分形天线。利用电磁仿真软件CST软件对所设计的天线进行仿真、优化,并分析了影响天线阻抗特性和辐射特性的关键参数。从仿真实验结果可以看出,所设计的天线有较好的全向辐射特性和宽的阻抗带宽,能够满足超宽带通信需求。A fractal ultra-wide band （UWB） antenna was made up of square and circular supersede iteration, which based on microstrip antenna and fractal antenna theory, was realized in the paper. The characteristics of impedance bandwidth and radiation pattern were optimized by using electromagnetic simulator CST. The results of the simulation, shows that the antenna has good omni-directional radiation pattern and wider impedance bandwidth, which can meet the ultra-wide band communications applications.

关 键 词：超宽带天线 分形天线 微带天线 

分 类 号：TN821[电子电信—信息与通信工程]