Reduced-size uwb uniplanar tapered slot antennas without and with corrugations

Wang, Yifan, Bakar, Aslina and Bialkowski, Marek (2011) Reduced-size uwb uniplanar tapered slot antennas without and with corrugations. Microwave and Optical Technology Letters, 53 4: 830-836. doi:10.1002/mop.25878


Author Wang, Yifan
Bakar, Aslina
Bialkowski, Marek
Title Reduced-size uwb uniplanar tapered slot antennas without and with corrugations
Journal name Microwave and Optical Technology Letters   Check publisher's open access policy
ISSN 0895-2477
Publication date 2011-04
Sub-type Article (original research)
DOI 10.1002/mop.25878
Volume 53
Issue 4
Start page 830
End page 836
Total pages 7
Place of publication United States
Publisher John Wiley & Sons
Collection year 2012
Language eng
Abstract This paper presents the design of compact uniplanar Tapered Slot Antennas (TSAs) without and with corrugations for operation in an ultra wide band (UWB) of 3.1–10.6 GHz.In the initial step, a conventional size-reduced uniplanar TSA with an exponential taper is designed. The analysis of its radiation pattern shows that this TSA exhibits reduced directivity in the lower part of UWB. To overcome this shortfall, two modifications are investigated. One includes an introduction of constant or variable-length narrow corrugations and the other one making elliptical cuts on conducting sides of the TSA. The modified TSAs maintain the initial UWB impedance characteristics. However, their behavior differs with respect to the radiation pattern and gain. The TSA with constant-length corrugations shows similar radiation pattern characteristics as it's non-modified predecessor while the TSA with variable-length corrugations exhibits an almost constant directive radiation pattern across UWB. The gain of these two antennas oscillates with frequency leading to pulse distortion. The TSA with elliptical conductor cuts shows both constant directive properties and distortionless pulse transmission. This is confirmed by full-wave EM simulations and measurements.
Keyword Ultra-wideband antenna
Slot antenna
Directivity
Radiation pattern
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Information Technology and Electrical Engineering Publications
 
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Created: Sun, 27 Mar 2011, 00:04:40 EST