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Proceedings Paper

Resolution of GPR bow-tie antennas
Author(s): Steven G. Millard; A. Shaari; J. H. Bungey
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Paper Abstract

Bow-tie antennas are often used for investigating subsurface features in concrete structures. It is important that the antenna selected for a survey has suitable detection capabilities and is also physically small enough to be usable within the confines of the structure. It should also be noted that the interaction of the antenna and material under inspection may change the characteristics of the radar signal being transmitted and this may have implications for interpretation ofresults. Higher frequency antennas normally give a better resolution but poorer depth penetration capability to lower frequency antennas. An experimental programme is described in which the resolution capabilities of two commercially available 900MHz & 1GHz antennas are compared in air. Studies are also carried out using an antenna in contact with concrete and the practical results are compared with theoretical predictions of resolution expectation. These results are considered in terms of the practical implications for field-testing using radar

Paper Details

Date Published: 12 April 2002
PDF: 7 pages
Proc. SPIE 4758, Ninth International Conference on Ground Penetrating Radar, (12 April 2002); doi: 10.1117/12.462318
Show Author Affiliations
Steven G. Millard, Univ. Teknologi Malaysia (United Kingdom)
A. Shaari, Univ. of Liverpool (United Kingdom)
J. H. Bungey, Univ. Teknologi Malaysia (United Kingdom)

Published in SPIE Proceedings Vol. 4758:
Ninth International Conference on Ground Penetrating Radar
Steven Koppenjan; Hua Lee, Editor(s)

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