Accurate FDTD modelling of resistively-loaded bow-tie antennas for GPR applications

Author

Caratelli, Diego ; Yarovoy, Alexander ; Ligthart, Leo P.

Author_Institution

Int. Res. Centre for Telecommun. & Radar, Delft Univ. of Technol., Delft

fYear

2009

fDate

23-27 March 2009

Firstpage

2115

Lastpage

2118

Abstract

In this paper, a cavity-backed bow-tie antenna for ground-penetrating radar is presented. Dielectric embedding and resistive loading of the radiating structure are employed to achieve a 10 :1 relative bandwidth (from 100 MHz to 1 GHz), with a maximum antenna size of 52 cm, and stable performance over different types of the ground. The full-wave analysis of the developed antenna is performed by means of a dedicated locally conformal finite-difference time-domain procedure.

Keywords

UHF antennas; VHF antennas; antenna radiation patterns; bow-tie antennas; finite difference time-domain analysis; ground penetrating radar; radar antennas; FDTD modelling; GPR applications; antenna radiating structure; bandwidth 100 MHz to 1 GHz; dielectric embedding loading; finite-difference time-domain procedure; full-wave analysis; ground-penetrating radar; resistive loading; resistively-loaded bow-tie antennas; size 52 cm; Bandwidth; Dielectrics; Finite difference methods; Ground penetrating radar; Loaded antennas; Radar antennas; Receiving antennas; Reflector antennas; Time domain analysis; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on

Conference_Location

Berlin

Print_ISBN

978-1-4244-4753-4

Electronic_ISBN

978-3-00-024573-2

Type

conf

Filename

5068035