High-frequency radar antennas for resolution enhancement of concrete structure images

Roland Goettel; Gerhard Moenich; Christiane Maierhofer

doi:10.1117/12.361006

10 September 1999 High-frequency radar antennas for resolution enhancement of concrete structure images

Roland Goettel, Gerhard Moenich, Christiane Maierhofer

Proceedings Volume 3827, Diagnostic Imaging Technologies and Industrial Applications; (1999) https://doi.org/10.1117/12.361006
Event: Industrial Lasers and Inspection (EUROPTO Series), 1999, Munich, Germany

Abstract

Ground Penetrating Radar (GPR) is increasingly used for non- destructive investigations of concrete structures in civil engineering. The success of any radar investigation depends on the duration of the radiated radar impulse and on the radiation pattern of the antenna. These antenna characteristics influence the spatial resolution of the radar image. To increase the spatial resolution, a high frequency antenna was developed. For this new antenna and two commercial antennas both mentioned antenna characteristics were determined using a concrete half sphere. The different performance of these antennas due to the different characteristics is demonstrated by comparison measurements at two concrete specimens.

Citation Download Citation

Roland Goettel, Gerhard Moenich, and Christiane Maierhofer "High-frequency radar antennas for resolution enhancement of concrete structure images", Proc. SPIE 3827, Diagnostic Imaging Technologies and Industrial Applications, (10 September 1999); https://doi.org/10.1117/12.361006

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