GPR antenna simulations in time domain

Alexander G. Yarovoy; G. Mur; Leo P. Ligthart

doi:10.1117/12.462189

12 April 2002 GPR antenna simulations in time domain

Alexander G. Yarovoy, G. Mur, Leo P. Ligthart

Proceedings Volume 4758, Ninth International Conference on Ground Penetrating Radar; (2002) https://doi.org/10.1117/12.462189
Event: Ninth International Conference on Ground Penetrating Radar (GPR2002), 2002, Santa Barbara, CA, United States

Abstract

The development of transient antennas for Ground Penetrating Radar would be difficult without numerical simulations of their performance. To this end FDTD code should be considered as a useful and powerful tool for transient antenna analysis. As an example of such analysis we describe simulations of the dielectric wedge antenna. Detailed investigations on such key model elements as the staircase approximation of 3D structures, the antenna feed model, the cell size and the size of the domain of computation were carried out. Very good agreement between theoretical predictions and experimental results was observed. Some of antenna characteristics (like the radial component of the electric field in the near zone, the radiated waveform and the antenna footprint in different grounds) cannot be measured easily, so the correct theoretical (numerical) model is essential for their determination. The numerical model of the antenna can be also used for optimization of the antenna.

Citation Download Citation

Alexander G. Yarovoy, G. Mur, and Leo P. Ligthart "GPR antenna simulations in time domain", Proc. SPIE 4758, Ninth International Conference on Ground Penetrating Radar, (12 April 2002); https://doi.org/10.1117/12.462189

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