电讯技术Issue(8)：1069-1073,5.DOI:10.3969/j.issn.1001-893x.2013.08.019
一种末端加载型300 MHz／1 GHz双频车载超宽带探地雷达天线设计*
Design of a Loaded Dual-band (300 MHz/1 GHz)Antenna for Vehicular UWB GPR Application
摘要
Abstract
To meet the demand of nondestructive exploration for high-speed railway,which requires outstanding depth in low frequency and resolution in high frequency,a dual-band (300 MHz and 1 GHz)exponential Trans-verse Electric and Magnetic (TEM)horn antenna is designed based on theoretical calculation and numerical simu-lation in this paper . End-loading and arm profiling are utilized in the proposed antenna design for conducting the dual-band performance . Simulation and experiment results show that the antenna works both in 360 MHz and1 020 MHz with bandwidths of 110 MHz and 260 MHz respectively,which exceeds the ultra-wide band(UWB)re-quirement of 20% relative bandwidth . The proposed antenna also has the advantages in signal fidelity and lowringing,which fully meets the design requirements . Furthermore,the proposed dual-band UWB antenna system has more potential advantages in engineering application field because of the low cost of the entire radar system.关键词
探地雷达天线/路基探测/TEM喇叭/双频带/末端加载/超宽带Key words
ground penetrating radar (GPR)antenna/railway substructure detection/TEM horn/dual-band/end-loaded/UWB分类
信息技术与安全科学引用本文复制引用
郭晨,张安学,刘策..一种末端加载型300 MHz／1 GHz双频车载超宽带探地雷达天线设计*[J].电讯技术,2013,(8):1069-1073,5.基金项目
国家自然科学基金资助项目（51277012）；中央高校基本科研业务项目 （）
