UWB TEM horn antenna for the asphalt pavement investigation
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- 作者：Jinjin Shao (1) (2) (4)
Guochang Liu (1) (2)
Yicai Ji (1)
Guangyou Fang (1)
Hejun Yin (3) - 关键词：Ultra ; WideBand (UWB) ; Transverse ElectroMagnetic (TEM) horn ; Exponentially ; taper ; Late ; time ringing ; TN957
- 刊名：Journal of Electronics (China)
- 出版年：2014
- 出版时间：February 2014
- 年：2014
- 卷：31
- 期：1
- 页码：24-28
- 全文大小：285 KB
- 作者单位：Jinjin Shao (1) (2) (4)
Guochang Liu (1) (2)
Yicai Ji (1)
Guangyou Fang (1)
Hejun Yin (3)
1. Key Laboratory of Electromagnetic Radiation and Sensing Technology, Beijing, 100190, China
2. University of Chinese Academy of Sciences, Beijing, 100049, China
4. No. 19, North 4th Ring Road West, Haidian District, Beijing o100190, China
3. Chinese Academy of Sciences, Beijing, 100864, China - ISSN：1993-0615
文摘
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.