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AN ULTRA-WIDEBAND ANTENNA FOR THE REINFORCED CONCRETE DETECTION

Author:
Shao Jinjin  Xia Zhenghuan  Ji Yicai  Fang Guangyou  Yin Hejun  


Journal:
Journal of Electronics(China)


Issue Date:
2013


Abstract(summary):

In this paper,an Ultra-Wideband(UWB) planar antenna is proposed for the reinforced concrete detection,which consists of a pair of planar waterdrop arms,a microstrip to coplanar parallel-strips transition and a shallow rectangular cavity.In order to overcome the disadvantages of the shallow cavity,some absorbing material is loaded to weaken the narrow-band effect of the cavity and the crosstalk interference.The simulated and measured results show that the proposed antenna has a large bandwidth from 0.48 GHz to 3.6 GHz with Voltage Standing Wave Ratio(VSWR) below 2 and a fractional bandwidth about 200% under the center frequency of 1.6 GHz,directional radiation characteristics and small late-time ringing in the time domain,which can be suitable for nondestructive detection of the reinforced concrete.


Page:
33-38


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