NDLI: Low profile ultra-wideband directional antenna operating in low microwave band for brain stroke diagnostic system

Content Provider	IEEE Xplore Digital Library
Author	Mobashsher, A.T. Abbosh, A.
Copyright Year	2014
Description	Author affiliation: Sch. of ITEE, Univ. of Queensland, St. Lucia, QLD, Australia (Mobashsher, A.T.; Abbosh, A.)
Abstract	Worldwide, brain stroke is the leading cause of disability among adult. Present imaging systems do not offer a low cost and portable solution for the stroke diagnosis. Microwave imaging systems have the potential to provide that solution and substitute, or complement, existing systems. To achieve that target, a wideband antenna operating at the band used for that application with directional radiation for adequate penetration into the human head is needed. This paper introduces a novel ultra-wideband antenna design consisting of a folded dipole-like structure printed on two dielectric slabs of the same size. The antenna covers a 98% fractional bandwidth (0.77 to 2.25 GHz), which is used in head imaging. The antenna exhibits stable directional radiation patterns with an average gain of 4.5 dBi and front to back ratio of 8 dBi. The overall structure of the antenna is equivalent to $0.27i_{0}$ × $0.121_{0}$ × 0.05 $k_{0},$ where $X_{0}$ is the corresponding wavelength at 0.77 GHz, which is a compact and low profile arrayable design suitable for microwave-based head imaging.
Starting Page	180
Ending Page	183
File Size	1352822
Page Count	4
File Format	PDF
ISBN	9781479923311
e-ISBN	9781479923298
DOI	10.1109/IWAT.2014.6958632
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-03-04
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microwave antennas directional radiation UWB antenna Stroke diagnostic system Directive antennas Ultra wideband antennas Antenna radiation patterns Microwave imaging
Content Type	Text
Resource Type	Article

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