一种探地雷达天线的设计及仿真  

Design and Simulation of a ground penetrating radar antenna

作　　者：刘艳妮[1] LIU Yan-ni(Changjiang Institute of Technology , Wuhan 430212 , China)

机构地区：[1]长江工程职业技术学院,湖北武汉430212

出　　处：《武汉职业技术学院学报》2018年第3期98-100,共3页Journal of Wuhan Polytechnic

摘　　要：设计了一种超宽带平板环形天线,中心频率为755MHz,工作频率范围为560MHz^855MHz,并利用电磁仿真软件Ansoft HFSS对其进行建模仿真。仿真结果表明,平板环形天线工作频率范围内,天线的驻波比小于2;在中心频率755MHz时,天线的回波损耗达到-40d B,相对带宽为39%。该天线在很宽的工作频带内具有良好的阻抗特性和辐射特性,完全满足探地雷达对天线系统的要求。An ultra wideband plate ring antenna with a center frequency of 755 MHz and a frequency range of560 MHz^855 MHz is designed, which is studied by modeling and Simulation using Ansoft HFSS. The results of Simulation demonstrates that the antenna＇s voltage standing wave ratio is less than 2 in the range of working frequency of the plate ring antenna. The echo loss of the antenna reaches-40 d B and the relative bandwidth is 39% when the center frequency is 755 MHz. The antenna has good impedance and radiation characteristics in a wide frequency band. It fully satisfies the antenna system of the ground penetrating radar.

关 键 词：探地雷达天线 环形天线 HFSS 宽频天线 

分 类 号：TN957.2[电子电信—信号与信息处理]