一种超宽带小型化探地雷达天线的设计  

The design of an ultra-wideband miniaturized GPR antenna

作　　者：彭宇[1] 王蕾[1] 郭福强[1] 胡通海[1] 

机构地区：[1]中国电波传播研究所,山东青岛266107

出　　处：《物探与化探》2014年第4期750-753,共4页Geophysical and Geochemical Exploration

基　　金：国家"十二五"专项预演项目(51307050402)

摘　　要：通过对蝶形偶极子天线复合加载的方式形成一种小型化的探地雷达天线,多种加载方式的引入不但使天线具有宽频带的性能,而且设计的天线尺寸与理论计算尺寸相比也大大减小。在天线后方引入背腔设计,增加了天线的方向性和抗干扰能力。所设计的天线具有1.5~4 GHz的频带宽度,且天线的方向性良好。设计的天线已成功应用于LTD探地雷达2.2 GHz天线系统和3 GHz的液态危险品检测天线系统中。A kind of miniaturized GPR antenna was designed through complex loading to the bow-tie dipole. The introduction of multiple loading methods not only makes the antenna acquire the performance of broadband but also greatly decreases the size of antenna compared with the theoretical calculation size. By introducing back cavity behind the antenna,the directivity and anti-jamming capability of the antenna are enhanced. The designed antenna possesses a 1. 5 GHz ~ 4 GHz frequency band width and a good direction. The designed antenna is successfully applied to the antenna system of 2. 2 GHz LTD series of GPR. This designed antenna can be also used in the dangerous liquid goods inspection system of 3 GHz LTD series of GPR.

关 键 词：探地雷达 蝶形偶极子 天线 背腔设计 

分 类 号：P631.3[天文地球—地质矿产勘探]