Volume 6 Issue 6
Dec.  2017
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Article Navigation >  Journal of Radars  > 2017  >  6(6): 611-618
Yin De, Ye Shengbo, Liu Jinwei, Ji Yicai, Liu Xiaojun, Fang Guangyou. Novel Time-domain Ultra-wide Band TEM Horn Antenna for Highway GPR Applications[J]. Journal of Radars, 2017, 6(6): 611-618. doi: 10.12000/JR17004
Citation: Yin De, Ye Shengbo, Liu Jinwei, Ji Yicai, Liu Xiaojun, Fang Guangyou. Novel Time-domain Ultra-wide Band TEM Horn Antenna for Highway GPR Applications[J]. Journal of Radars, 2017, 6(6): 611-618. doi: 10.12000/JR17004
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Novel Time-domain Ultra-wide Band TEM Horn Antenna for Highway GPR Applications

DOI: 10.12000/JR17004
  • ①.

    Key Laboratory of Electromagnetic Radiation and Sensing Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China

  • ②.

    University of Chinese Academy of Sciences, Beijing 100049, China

Funds:  Beijing Transportation Industry Science and Technology Project (7C1405473)
  • Received Date: 2017-01-05
  • Rev Recd Date: 2017-08-05
  • Publish Date: 2017-12-28
    Abstract

  • Based on transmission line theory and impedance transition, we design an ultra-wideband Transverse ElectroMagnetic (TEM) horn antenna that takes advantage of index gradient structure and loading techniques and is optimized for highway Ground Penetrating Radar (GPR) applications. We use numerical simulation to analyze the effects of different curved surfaces as an extension of the antenna and further improve the antenna performance by the use of a metallic reflective cavity and distributed resistor loading. We then fabricated an antenna based on the optimization results and determined the Voltage Standing Wave Ratio (VSWR) of the antenna to be less than 2 for bandwidths ranging from 0.9–12.6 GHz. The waveform fidelity of the antenna is also good and when we applied this antenna to highway scenarios, it achieved good results.

     

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