DocumentCode
2154564
Title
Ultra wideband coplanar waveguide fed spiral antenna for humanitarian demining
Author
Thaysen, Jesper ; Jakobsen, Kaj B. ; Appel-Hansen, Jørgen
Author_Institution
Department of Applied Electronics, Technical University of Denmark. jt@iae.dtu.dk kbj@iae.dtu.dk
fYear
2000
fDate
Oct. 2000
Firstpage
1
Lastpage
4
Abstract
A cavity backed coplanar waveguide to coplanar strip fed logarithmic uniplanar spiral antenna, which covers a 9 to 1 bandwidth with a return loss better than 10 dB from 0.4 to 3.8 GHz is presented. A wideband balun covering the frequency range of the antenna was developed. The constructed spiral antenna is very useful in a stepped frequency ground penetrating radar for humanitarian demining due to the very wide band-width, relatively small size, and being uniplanar. Successful detection of a small 5.4 cm non-metallic AP-mines in a pseudo minefield are presented.
Keywords
Bandwidth; Broadband antennas; Coplanar waveguides; Frequency; Ground penetrating radar; Impedance matching; Radar antennas; Spirals; Ultra wideband antennas; Ultra wideband technology;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 2000. 30th European
Conference_Location
Paris, France
Type
conf
DOI
10.1109/EUMA.2000.338738
Filename
4139751
Link To Document