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Proceedings Paper

Improved resistive-vee dipole based arbitrary polarization antenna system for ground penetrating radar
Author(s): James W. Sustman; Waymond R. Scott
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Paper Abstract

A broadband arbitrary polarization antenna system for ground penetrating radar applications is modified to improve its performance. The antenna system uses four, crossed, resistive-vee dipole (RVD) antennas operating bistaticly to measure the simultaneous transmission and reception of multiple polarizations. The RVD has low self clutter, low radar cross section and wideband performance. The RVD is a linearly polarized antenna, but other polarizations can be synthesized through the use of two orthogonal RVDs to transmit or receive orthogonal field components. The antenna system is able to distinguish rotationally symmetric and linear targets with its ability to transmit and receive both senses of circular polarization. For example, linear targets such as wires or pipes can be identified by even scattering of both senses of circular polarization. The RVDs in the previous RVD-based CP (circularly polarized) antenna were not designed for CP synthesis. The shape and resistive profile of the RVD were modified to improve dual CP performance. The design of the RVD was optimized through simulation to improve CP synthesis and forward gain, while maintaining low self clutter, low radar cross section, and wide bandwidth. Additional simulations demonstrate that the improvements to the RVD may help to correctly discriminate targets based on their geometries.

Paper Details

Date Published: 29 May 2014
PDF: 11 pages
Proc. SPIE 9072, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XIX, 90720N (29 May 2014); doi: 10.1117/12.2050470
Show Author Affiliations
James W. Sustman, Georgia Institute of Technology (United States)
Waymond R. Scott, Georgia Institute of Technology (United States)


Published in SPIE Proceedings Vol. 9072:
Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XIX
Steven S. Bishop; Jason C. Isaacs, Editor(s)

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