EBG高阻表面结构的矩形波导宽边缝隙天线  

The Rectangular Waveguide Board Wall Slot Array Antenna with EBG High-impedance Surface Structure

作　　者：李斌[1] 李龙[1] 梁昌洪[1] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,陕西西安710071

出　　处：《电子学报》2006年第3期429-432,共4页Acta Electronica Sinica

基　　金：国家973重大项目基金(No:00300113)

摘　　要：本文提出了波导宽边缝隙天线提高方向图前后辐射比的一种新的实现途径.文中采用在波导宽边上附加EBG(electrom agnetic band-gap)高阻表面结构作为高阻接地面的新方法来提高波导缝隙天线方向图的前后辐射比,并对设计的EBG波导缝隙天线单元和阵列的辐射特性进行了仿真分析和实际测量,仿真和测量结果说明该方法对提高矩形波导宽边缝隙天线方向图的前后辐射比是十分有效的.This paper deals with the method to raise the front to back （F/B） ratio on the pattern for the slots antenna of rectangular waveguide. The EBG （electromagnetic band-gap） high-impedance surface structure is utilized as a high-impedance ground plane for slots on rectangular waveguide to raise the front to back （F/B） ratio, and detailed analysis is made to study the influence of EBG high-impedance surface characteristic on the radiation properties of the slots array antenna of rectangular waveguide by using the simulation method. The electric parameters of the designed example antenna are measured. The experimental results show that this method is effective.

关 键 词：波导缝隙天线 EBG表面结构 方向图 前后辐射比 

分 类 号：TN821[电子电信—信息与通信工程]