UWB TEM HORN ANTENNA FOR THE ASPHALT PAVEMENT INVESTIGATION  

作　　者：Shao Jinjin Liu Guochang Ji Yicai Fang Guangyou Yin Hejun 

机构地区：[1]Key Laboratory of Electromagnetic Radiation and Sensing Technology [2]University of Chinese Academy of Sciences [3]Chinese Academy of Sciences

出　　处：《Journal of Electronics(China)》2014年第1期24-28,共5页电子科学学刊（英文版）

基　　金：Supported by the National High Technology Research and Development Program(No.2012AA121901)

摘　　要：A simple Ultra-WideBand(UWB)exponentially-tapered Transverse ElectroMagnetic(TEM)horn antenna is presented for the asphalt detection based on Ground Penetrating Radar(GPR).In order to reduce the reflections from the antenna aperture,some absorbing material is loaded on the outer surface of the conductor.Comparing with the traditional TEM horn antenna,the proposed antenna has a small size and a large impedance bandwidth.Simulated and measured results show that the proposed TEM horn antenna has a low Voltage Standing Wave Ratio(VSWR)below 2 over the whole band from 0.35 GHz to 12 GHz,good radiation characteristics,and small late-time ringing,which can perfectly meet the requirements of the GPR application.A simple Ultra-WideBand （UWB） exponentially-tapered Transverse ElectroMagnetic （TEM） horn antenna is presented for the asphalt detection based on Ground Penetrating Radar （GPR） In order to reduce the reflections from the antenna aperture, some absorbing material is loaded on the outer surface of the conductor. Comparing with the traditional TEM horn antenna, the proposed antenna has a small size and a large impedance bandwidth. Simulated and measured results show that the proposed TEM horn antenna has a low Voltage Standing Wave Ratio （VSWR） below 2 over the whole band from 0.35 GHz to 12 GHz, good radiation characteristics, and small late-time ringing, which can perfectly meet the requirements of the GPR application.

关 键 词：Ultra-WideBand(UWB) Transverse ElectroMagnetic(TEM) horn Exponentially-taper Late-time ringing 

分 类 号：TN957[电子电信—信号与信息处理]