Design of a Wideband Antenna for a Narrow Borehole Radar Using FDTD Modeling

Author

Sagnard, Florence-Marie

Author_Institution

Regional Lab. of Civil Eng. (LRPC) of Rouen, Grand Quevilly

Volume

6

Issue

3

fYear

2009

fDate

7/1/2009 12:00:00 AM

Firstpage

553

Lastpage

557

Abstract

For the design of a narrow wideband antenna (with diameter less than 3 cm) to serve in a borehole radar in the band [0.5,1.5] GHz for moisture content measurements, we have considered five different geometries. These geometries have been modeled using the finite-difference time-domain approach. The frequency- and time-domain responses have been analyzed in detail in the transmission configuration in the presence of a dielectric soil. We present radargrams for the multiple offset gather configuration. This study will help to define the best antenna geometry for the present application.

Keywords

broadband antennas; finite difference time-domain analysis; geophysical prospecting; moisture measurement; radar antennas; well logging; FDTD modeling; antenna geometry; borehole radar; dielectric soil; finite-difference time-domain approach; frequency 0.5 GHz to 1.5 GHz; moisture content measurement; narrow wideband antenna; radargrams; transmission configuration; Borehole radar; dielectric measurements; microstrip antenna; soil;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2009.2021168

Filename

4982715