NDLI: Improved Bow-Tie Antenna for Pulse Radiation and Its Implementation in a GPR Survey

Content Provider	IEEE Xplore Digital Library
Author	Lestari, A.A. Yulian, D. Liarto, Suksmono, A.B. Bharata, E. Yarovoy, A.G. Ligthart, L.P.
Copyright Year	2007
Description	Author affiliation: Radar & Communication Systems (RCS), Indonesia (Yulian, D.; Liarto,) \|\| International Research Centre for Telecom and Radar -Indonesian Branch (IRCTR-IB), Indonesia; International Research Centre for Telecom and Radar (IRCTR) -TU Delft, The Netherlands (Ligthart, L.P.) \|\| International Research Centre for Telecom and Radar -Indonesian Branch (IRCTR-IB), Indonesia; Bandung Institute of Technology (ITB), Indonesia (Suksmono, A.B.; Bharata, E.) \|\| International Research Centre for Telecom and Radar -Indonesian Branch (IRCTR-IB), Indonesia; International Research Centre for Telecom and Radar (IRCTR) -TU Delft, The Netherlands, a.lestari@irctr.tudelft.nl (Lestari, A.A.) \|\| International Research Centre for Telecom and Radar (IRCTR) -TU Delft, The Netherlands (Yarovoy, A.G.)
Abstract	In our previous works we developed an improved UWB bow-tie antenna for high-resolution GPR applications. The antenna has been designed to detect small shallow-buried objects for which it should be able to transmit short pulses with very small late-time ringing. It has been shown theoretically that in comparison with conventional bow-tie or dipole antennas, this antenna radiates significantly stronger pulses in its broadside direction with very small late-time ringing. In this paper, experimentally we compare the antenna with a resistively-loaded planar dipole which is commonly used for GPR. It has been found that the antenna exhibits superior characteristics in terms of significantly larger amplitude of the transmitted pulses and much smaller late-time ringing. Furthermore, the antenna has been implemented in a commercial GPR system and tested in real GPR surveys. In this paper we demonstrate that the implementation of this antenna results in clear B-scan images which allow one to easily observe the detail of the shallow subsurface.
Starting Page	197
Ending Page	202
File Size	3330923
Page Count	6
File Format	PDF
ISBN	1424408865
DOI	10.1109/AGPR.2007.386551
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-27
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ground penetrating radar Radar antennas Dipole antennas Resistors Radar cross section Ultra wideband antennas Radar detection Directive antennas Antenna theory Wires UTWB antenna Bow-tie antenna ground penetrating radar GPR antenna
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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