Title :
Electromagnetic tomography between boreholes: antennas and propagation characterization
Author :
Benjelloun, N. ; Delabriere, A.M. ; Nguyen, Y. ; Degauque, P.
Author_Institution :
Lab. Radiopropagation, Lille I Univ., Villeneuve d´´Ascq, France
Abstract :
This paper describes a theoretical and experimental approach of the input impedance and of the current distribution along wire antennas lowered in a borehole. The transmitting frequency is on the order or greater than 100 MHz, such that resonant antennas can be used. Lastly, horizontally and vertically polarized antennas, working in a frequency range extending from 600 MHz to 1.2 GHz, are presented
Keywords :
antenna theory; geophysical prospecting; geophysical techniques; radar antennas; remote sensing by radar; terrestrial electricity; tomography; 100 MHz to 1.2 GHz; EM sounding; antenna; cross borehole method; electric current distribution; electromagnetic tomography; exploration; geoelectric method; geophysical measurement technique; input impedance; propagation characterization; prospecting; radar; resonant antenna; terrestrial electricity; transmitting frequency; vertically polarized antenna; wire antenna; Antennas and propagation; Conductivity; Current distribution; Dipole antennas; Electromagnetic propagation; Frequency; Impedance; Resonance; Tomography; Transmitting antennas;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2000. Proceedings. IGARSS 2000. IEEE 2000 International
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-6359-0
DOI :
10.1109/IGARSS.2000.861736
