Compact-size linearly tapered slot antenna for portable ultra-wideband imaging systems
; Tapered slot antenna
; Compact antenna
; UWB imaging system
; Equiangular spiral antenna
; Antipodal vivaldi antenna
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AbstractA compact-size asymmetrical linearly tapered slot antenna required for portable ultra-wideband (UWB) imaging systems is presented. The total antenna size is reduced compared with the conventional linearly tapered slot antenna by using a triangular slot on the left-hand side of the tapered-shaped radiator, whereas introducing a corrugated pattern of cuts on the right side. The antenna operates over a wide bandwidth extending from 3.1 to 10.6 GHz with a maximum gain of 8.5 dBi. Stable radiation patterns are observed across the operational bandwidth, with cross-polarization levels below 20 dB. The realized antenna structure occupies a volume of 35 x 36 x 0.8 mm3, and possesses the essential time domain fidelity needed for UWB imaging applications. (c) 2012 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2013.
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CitationZhu F, Gao S, Ho ATS, See CH, Abd-Alhameed RA et al (2013) Compact-size linearly tapered slot antenna for portable ultra-wideband imaging systems. International Journal of RF and Microwave Computer-Aided Engineering. 23(3): 290-299.
Link to publisher’s versionhttp://dx.doi.org/10.1002/mmce.20673
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