Analysis of GPR UWB Half-Ellipse Antennas With Different Heights of Backed Cavity Above Ground

Author

Wu, Bingheng ; Ji, Yicai ; Fang, Guangyou

Author_Institution

Inst. of Electron., Chinese Acad. of Sci., Beijing, China

Volume

9

fYear

2010

fDate

7/2/1905 12:00:00 AM

Firstpage

130

Lastpage

133

Abstract

Ultrawideband (UWB) antenna is a critical part of the ground penetrating radar (GPR) system, and the bow-tie antenna is the most popular one in all kinds of UWB antennas. In this letter, an antenna with two half-elliptical-shape arms, which is an improvement of the bow-tie antenna, is presented with the input impedance of around 100 ??. The voltage standing wave ratio (VSWR) and radiated waveform are analyzed as the antennas with different backed cavity heights and different elevations above ground surface. The influence of the vehicle on which the half-ellipse antenna (HEA) is mounted is also given in the above three aspects.

Keywords

antenna radiation patterns; bow-tie antennas; ground penetrating radar; radar antennas; ultra wideband antennas; GPR UWB half-ellipse antennas; backed cavity heights; bow-tie antenna; ground penetrating radar system; radiated waveform; ultrawideband antenna; voltage standing wave ratio; Bow-tie antenna; ground influence; ground penetrating radar (GPR); half-ellipse antenna (HEA); ultrawideband (UWB) antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2010.2044475

Filename

5424004