一种新型探地雷达天线的设计仿真  

Design and simulation of a new GPR antenna

作　　者：吴国瑞 于莎莎 

机构地区：[1]哈尔滨电工仪表研究所,黑龙江哈尔滨150028

出　　处：《电子元件与材料》2015年第8期83-85,共3页Electronic Components And Materials

摘　　要：结合探地雷达（GPR）的发射信号，设计了一款工作频率范围为0.7~1.2 GHz的角锥喇叭天线。对喇叭天线结构参数的设计过程进行了分析，并利用电磁仿真软件Ansoft HFSS对其行建模仿真。仿真结果表明：在喇叭天线工作频率范围内，天线的驻波比小于1.4，在中心频率955 MHz下喇叭天线的增益最大达到11 dB左右，满足实际探地雷达对天线系统的要求。该天线具有频带宽、电压驻波比低、增益高、方向性强等优点。According to the transmitting pulse of ground penetrating radar （GPR）, a pyramidal horn antenna whose frequency range was from 0.7 GHz to 1.2 GHz was designed. The detailed analysis in the design process of the main structure parameters of the horn antenna was complied, and Ansoft HFSS software was used for modeling and simulation. The simulation results show that VSWR of the horn antenna is less than 1.4; the gain of the horn antenna is up to about 11 dB at the centre frequency of 955 MHz; simulation results meet the actual requirements of the antenna system of GPR. The horn antenna has some merits, such as wide band, low VSWR, high gain and good radiation direction.

关 键 词：喇叭天线 探地雷达 HFSS 建模仿真 宽频带 高增益 

分 类 号：TN957.2[电子电信—信号与信息处理]