Small UWB antenna with improved efficiency for pulse radiation

Author

Lestari, A.A. ; Suksmono, A.B. ; Bharata, E. ; Yarovoy, A.G. ; Ligthart, L.P.

Author_Institution

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

fYear

2005

fDate

7-9 March 2005

Firstpage

295

Lastpage

298

Abstract

The paper describes an ultra-wideband (UWB) antenna developed for impulse ground penetrating radar (GPR) applications. The antenna is a modified bow-tie antenna designed for short-range GPR applications such as road inspection and non-destructive testing of concrete. For these applications, the transmitted pulses should have minimal ringing to avoid masking of targets. This can be achieved by the application of resistive loading at the expense of radiation efficiency. We have attempted to improve a conventional bow-tie antenna usually used in GPR by reducing the antenna size and minimizing ringing, while at the same time improving the antenna radiation efficiency.

Keywords

ground penetrating radar; radar antennas; ultra wideband antennas; antenna radiation efficiency; bow-tie antenna; concrete nondestructive testing; impulse ground penetrating radar; pulse radiation; resistive loading; ringing minimization; road inspection; short-range GPR; small UWB antenna; Antenna feeds; Dielectric substrates; Directive antennas; Ground penetrating radar; Laboratories; Loaded antennas; Microwave technology; Radar antennas; Ultra wideband antennas; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology: Small Antennas and Novel Metamaterials, 2005. IWAT 2005. IEEE International Workshop on

Print_ISBN

0-7803-8842-9

Type

conf

DOI

10.1109/IWAT.2005.1461074

Filename

1461074