• D.Srilatha

In this work a semi-empirical model is presented to characterize the transfer function and scattering parameters of a vertical dipole antenna, in the 164–174 MHz bandwidth. The antenna is either radiating in free space, or it is inserted in an air-filled borehole in a salt mine. The model uses the signal flow graph for modeling of the antenna coupling with the environment and the effects of radio wave propagation in the layered medium. Analytical results are fitted to measurements performed with a vector network analyzer, and the transfer functions are obtained by applying a least mean square algorithm. Experimental data acquired in free space allows also determination of the intrinsic parameters of the antennas, providing a stand-alone method.

boreholed antenna, layered medium, transfer function

"A Boreholed Dipole Antenna Transfer Function ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 8, page no.102-108, August-2018, Available :http://www.jetir.org/papers/JETIR1808311.pdf

"A Boreholed Dipole Antenna Transfer Function ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 8, page no. pp102-108, August-2018, Available at : http://www.jetir.org/papers/JETIR1808311.pdf