Directive Antenna for Ultrawideband Medical Imaging Systems
A compact and directive ultrawideband antenna is presented in this paper. The antenna is in the form of an antipodal tapered slot with resistive layers to improve its directivity and to reduce its backward radiation. The antenna operates over the frequency band from 3.1 GHz to more than 10.6 GHz. It...
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2008-01-01
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Series: | International Journal of Antennas and Propagation |
Online Access: | http://dx.doi.org/10.1155/2008/854012 |
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doaj-5c4507cf6d8a4ac2a8c406ce9531b5e72020-11-24T23:23:07ZengHindawi LimitedInternational Journal of Antennas and Propagation1687-58691687-58772008-01-01200810.1155/2008/854012854012Directive Antenna for Ultrawideband Medical Imaging SystemsAmin M. Abbosh0School of Information Technology and Electrical Engineering, The University of Queensland, St. Lucia, Qld 4072, AustraliaA compact and directive ultrawideband antenna is presented in this paper. The antenna is in the form of an antipodal tapered slot with resistive layers to improve its directivity and to reduce its backward radiation. The antenna operates over the frequency band from 3.1 GHz to more than 10.6 GHz. It features a directive radiation with a peak gain which is between 4 dBi and 11 dBi in the specified band. The time domain performance of the antenna shows negligible distortion. This makes it suitable for the imaging systems which require a very short pulse for transmission/reception. The effect of the multilayer human body on the performance of the antenna is also studied. The breast model is used for this purpose. It is shown that the antenna has more than 90% fidelity factor when it works in free space, whereas the fidelity factor decreases as the signal propagates inside the human body. However, even inside the human body, the fidelity factor is still larger than 70% revealing the possibility of using the proposed antenna in biomedical imaging systems.http://dx.doi.org/10.1155/2008/854012 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Amin M. Abbosh |
spellingShingle |
Amin M. Abbosh Directive Antenna for Ultrawideband Medical Imaging Systems International Journal of Antennas and Propagation |
author_facet |
Amin M. Abbosh |
author_sort |
Amin M. Abbosh |
title |
Directive Antenna for Ultrawideband Medical Imaging Systems |
title_short |
Directive Antenna for Ultrawideband Medical Imaging Systems |
title_full |
Directive Antenna for Ultrawideband Medical Imaging Systems |
title_fullStr |
Directive Antenna for Ultrawideband Medical Imaging Systems |
title_full_unstemmed |
Directive Antenna for Ultrawideband Medical Imaging Systems |
title_sort |
directive antenna for ultrawideband medical imaging systems |
publisher |
Hindawi Limited |
series |
International Journal of Antennas and Propagation |
issn |
1687-5869 1687-5877 |
publishDate |
2008-01-01 |
description |
A compact and directive ultrawideband antenna is presented in this paper. The antenna is in the form of an antipodal tapered slot with resistive layers to improve its directivity and to reduce its backward radiation. The antenna operates over the frequency band from 3.1 GHz to more than 10.6 GHz. It features a directive radiation with a peak gain which is between 4 dBi and 11 dBi in the specified band. The time domain performance of the antenna shows negligible distortion. This makes it suitable for the imaging systems which require a very short pulse for transmission/reception. The effect of the multilayer human body on the performance of the antenna is also studied. The breast model is used for this purpose. It is shown that the antenna has more than 90% fidelity factor when it works in free space, whereas the fidelity factor decreases as the signal propagates inside the human body. However, even inside the human body, the fidelity factor is still larger than 70% revealing the possibility of using the proposed antenna in biomedical imaging systems. |
url |
http://dx.doi.org/10.1155/2008/854012 |
work_keys_str_mv |
AT aminmabbosh directiveantennaforultrawidebandmedicalimagingsystems |
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