Synthetic bandwidth radar for ultra-wideband microwave imaging systems

Wang, Yifan, Abbosh, Amin M., Henin, Bassem and Nguyen, Phong Thanh (2014) Synthetic bandwidth radar for ultra-wideband microwave imaging systems. IEEE Transactions on Antennas and Propagation, 62 2: 698-705. doi:10.1109/TAP.2013.2289355

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Author Wang, Yifan
Abbosh, Amin M.
Henin, Bassem
Nguyen, Phong Thanh
Title Synthetic bandwidth radar for ultra-wideband microwave imaging systems
Journal name IEEE Transactions on Antennas and Propagation   Check publisher's open access policy
ISSN 0018-926X
Publication date 2014-01-01
Year available 2013
Sub-type Article (original research)
DOI 10.1109/TAP.2013.2289355
Open Access Status File (Author Post-print)
Volume 62
Issue 2
Start page 698
End page 705
Total pages 8
Place of publication Piscataway, NJ, United States
Publisher Institute of Electrical and Electronics Engineers
Language eng
Abstract A synthetic bandwidth radar as an approach to build ultra-wideband (UWB) imaging systems is presented. The method provides an effective solution to mitigate the challenges of UWB antenna's implementation with ideal performance. The proposed method is implemented by dividing the utilized UWB into several channels, or sub-bands, and designing an antenna array that includes a number of antennas equal to the number of channels. Each of those antennas is designed to have excellent properties across its corresponding channel. As part of the proposed approach, a two-stage calibration procedure is used to accurately estimate the effective permittivity of a heterogeneous imaged object at different angles and the phase center of each antenna for accurate delay time estimation. When imaging an object, each of the antennas transmits and captures signals only at its channel. Those captured signals are properly combined and processed to form an image of the target that is better than the current systems that use array of UWB antennas. The presented method is tested on breast imaging using the band 3-10 GHz via simulations and measurements on a realistic heterogeneous phantom.
Keyword Microwave antenna
Microwave imaging
Synthetic bandwidth
Ultra-wideband (UWB)
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID FT0991479
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2014 Collection
School of Information Technology and Electrical Engineering Publications
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Citation counts: TR Web of Science Citation Count  Cited 22 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 21 times in Scopus Article | Citations
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