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Surface Wave Multipath Signals in Near-Field Microwave Imaging
Joint Authors
Meaney, Paul M.
Epstein, Neil R.
Paulsen, Keith D.
Shubitidze, Fridon
Fanning, Margaret W.
Kmiec, Maciej
Source
International Journal of Biomedical Imaging
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-04-10
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Microwave imaging techniques are prone to signal corruption from unwanted multipath signals.
Near-field systems are especially vulnerable because signals can scatter and reflect from structural objects within or on the boundary of the imaging zone.
These issues are further exacerbated when surface waves are generated with the potential of propagating along the transmitting and receiving antenna feed lines and other low-loss paths.
In this paper, we analyze the contributions of multi-path signals arising from surface wave effects.
Specifically, experiments were conducted with a near-field microwave imaging array positioned at variable heights from the floor of a coupling fluid tank.
Antenna arrays with different feed line lengths in the fluid were also evaluated.
The results show that surface waves corrupt the received signals over the longest transmission distances across the measurement array.
However, the surface wave effects can be eliminated provided the feed line lengths are sufficiently long independently of the distance of the transmitting/receiving antenna tips from the imaging tank floor.
Theoretical predictions confirm the experimental observations.
American Psychological Association (APA)
Meaney, Paul M.& Shubitidze, Fridon& Fanning, Margaret W.& Kmiec, Maciej& Epstein, Neil R.& Paulsen, Keith D.. 2012. Surface Wave Multipath Signals in Near-Field Microwave Imaging. International Journal of Biomedical Imaging،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-491424
Modern Language Association (MLA)
Meaney, Paul M.…[et al.]. Surface Wave Multipath Signals in Near-Field Microwave Imaging. International Journal of Biomedical Imaging No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-491424
American Medical Association (AMA)
Meaney, Paul M.& Shubitidze, Fridon& Fanning, Margaret W.& Kmiec, Maciej& Epstein, Neil R.& Paulsen, Keith D.. Surface Wave Multipath Signals in Near-Field Microwave Imaging. International Journal of Biomedical Imaging. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-491424
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-491424