Transmitted Field In The Lossy Ground From Ground Penetrating Radar (GPR) Dipole Antenna

The paper deals with the evaluation of transmitted electric field in the ground due to the GPR dipole antenna. The frequency domain formulation is based on the integro-differential equation of the Pocklington type. The influence of the earth– air interface is taken into account via the simplified reflection/transmission coefficient arising from the Modified Image Theory (MIT). The space-frequency Pocklington equation is solved via the Galerkin–Bubnov variant of the Indirect Boundary Element Method (GB-IBEM) and the corresponding transmitted field is obtained by numerically computing field integrals. Some preliminary results for the electric field transmitted into material media are presented.

[1]  Evert Slob,et al.  Civil Engineering Applications of Ground Penetrating Radar: Research Perspectives in COST Action TU1208 , 2013 .

[2]  D. Poljak,et al.  Transient analysis of two coupled horizontal wires over a real ground , 2000 .

[3]  Christina Plati,et al.  Applications of Ground Penetrating Radar in civil engineering — COST action TU1208 , 2013, 2013 7th International Workshop on Advanced Ground Penetrating Radar.

[4]  Alexander Yarovoy,et al.  Time domain analysis of thin‐wire antennas over lossy ground using the reflection‐coefficient approximation , 2009 .

[5]  Dragan Poljak,et al.  Comparison of analytical and boundary element modeling of electromagnetic field coupling to overhead and buried wires , 2011 .

[6]  Dragan Poljak,et al.  Advanced Modeling in Computational Electromagnetic Compatibility , 2007 .

[7]  Andrew J. Poggio,et al.  Analysis of Wire Antennas in the Presence of a Conducting Half-Space. Part II. The Horizontal Antenna in Free Space , 1972 .

[8]  A. Giannopoulos,et al.  Radiation characteristics of a high-frequency antenna in different dielectric environments , 2014, Proceedings of the 15th International Conference on Ground Penetrating Radar.

[9]  Glenn S. Smith,et al.  A fully three-dimensional simulation of a ground-penetrating radar: FDTD theory compared with experiment , 1996, IEEE Trans. Geosci. Remote. Sens..

[10]  Levent Gürel,et al.  Three-dimensional FDTD modeling of a ground-penetrating radar , 2000, IEEE Trans. Geosci. Remote. Sens..