Compact tapered slot antennas for UWB microwave imaging applications

Wang, Yifan, Bakar, Aslina Abu and Bialkowski, Marek E. (2010). Compact tapered slot antennas for UWB microwave imaging applications. In: Proceedings, 4th Microwave and Radar Week, MRW-2010 - 18th International Conference on Microwaves, Radar and Wireless Communications, MIKON 2010. 4th Microwave and Radar Week, MRW-2010 - 18th International Conference on Microwaves, Radar and Wireless Communications, MIKON 2010, Vilnius, Lithuania, (1-4). 14-16 June 2010.

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Author Wang, Yifan
Bakar, Aslina Abu
Bialkowski, Marek E.
Title of paper Compact tapered slot antennas for UWB microwave imaging applications
Conference name 4th Microwave and Radar Week, MRW-2010 - 18th International Conference on Microwaves, Radar and Wireless Communications, MIKON 2010
Conference location Vilnius, Lithuania
Conference dates 14-16 June 2010
Proceedings title Proceedings, 4th Microwave and Radar Week, MRW-2010 - 18th International Conference on Microwaves, Radar and Wireless Communications, MIKON 2010
Journal name 4th Microwave and Radar Week, MRW-2010 - 18th International Conference on Microwaves, Radar and Wireless Communications, MIKON 2010 - Conference Proceedings
Place of Publication Piscataway, NJ, USA
Publisher IEEE (Institute for Electrical and Electronic Engineers)
Publication Year 2010
Sub-type Fully published paper
Open Access Status File (Author Post-print)
ISBN 9781424452880
Issue Article number 5540406
Start page 1
End page 4
Total pages 4
Language eng
Abstract/Summary This paper presents the design of compact Tapered Slot Antennas (TSAs) for application in an Ultra Wide Band (UWB) microwave imaging system. In the initial step, a conventional size-reduced TSA with an exponential taper for 3.1-10.6 GHz band is designed. From the radiation pattern analysis, it is found that this antenna exhibits poor directivity in the lower part of UWB. To overcome this shortfall, two modifications are investigated. One includes corrugations and the other one elliptical cuts on sides of the initial TSA. It is shown that the modified TSAs feature improved directivity while their UWB impedance characteristics are similar to the original TSA. The TSA with corrugations exhibits an almost constant directive radiation pattern across UWB. However, its gain oscillates with frequency leading to a pulse distortion. Therefore the size-reduced TSA with elliptical cuts in conducting sides looks to be the most attractive choice with respect to both directive properties and distortionless pulse transmission.
Keyword Directivity
Radiation pattern
Slot antenna
Ultra wideband antenna
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes ORAL SESSION A2 BROADBAND AND UWB ANTENNAS

 
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Created: Sat, 05 Mar 2011, 00:02:14 EST by Professor Marek Bialkowski on behalf of School of Information Technol and Elec Engineering