Radiation pattern of a borehole radar antenna
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Abstract
To understand better how a borehole antenna radiates radar waves into a formation, this phenomenon is simulated numerically using the finite-difference, time-domain method. The simulations are of two different antenna models that include features like a driving point fed by a coaxial cable, resistive loading of the antenna, and a water-filled borehole. For each model, traces are calculated in the far-field region, and then, from these traces, radiation patterns are calculated. The radiation patterns show that the amplitude of the radar wave is strongly affected by its frequency, its propagation direction, and the resistive loading of the antenna.
Suggested Citation
Ellefsen, K., Wright, D., 2002, Radiation pattern of a borehole radar antenna, in Proceedings of SPIE - The International Society for Optical Engineering, v. 4758, Santa Barbara, CA, 29 April 2002 through 2 May 2002, p. 68-73, https://doi.org/10.1117/12.462190.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Radiation pattern of a borehole radar antenna |
| DOI | 10.1117/12.462190 |
| Volume | 4758 |
| Year Published | 2002 |
| Language | English |
| Larger Work Title | Proceedings of SPIE - The International Society for Optical Engineering |
| First page | 68 |
| Last page | 73 |
| Conference Title | 9th International Conference on Ground Penetrating Radar |
| Conference Location | Santa Barbara, CA |
| Conference Date | 29 April 2002 through 2 May 2002 |