Directive antenna for ultra wideband medical imaging systems

Abbosh, Amin M. (2008) Directive antenna for ultra wideband medical imaging systems. International Journal of Antennas and Propagation, 2008 Article ID 854012: . doi:10.1155/2008/854012


Author Abbosh, Amin M.
Title Directive antenna for ultra wideband medical imaging systems
Journal name International Journal of Antennas and Propagation   Check publisher's open access policy
ISSN 1687-5869
1687-5877
Publication date 2008
Sub-type Article (original research)
DOI 10.1155/2008/854012
Open Access Status DOI
Volume 2008
Issue Article ID 854012
Total pages 6
Place of publication Hindawi Publishing Corporation
Publisher New York, NY
Language eng
Subject 0906 Electrical and Electronic Engineering
Abstract 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.
Q-Index Code C1
Q-Index Status Provisional Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Information Technology and Electrical Engineering Publications
 
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Created: Tue, 12 Jan 2010, 11:56:12 EST by Ms Lynette Adams on behalf of School of Information Technol and Elec Engineering