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ID 30146
フルテキストURL
著者
Tsuboi, H. Okayama University
Tanaka, H. Okayama University
Fujita, M. Fuji Electric Corporate Research and Development, Limited
抄録

A numerical method which can take account of lossy dielectrics near the antenna has to be developed for the design of the radio-frequency antenna in magnetic resonance imaging, since the human body is a lossy dielectric. A combination of the moment method and the boundary element method is proposed. In the proposed method, the scattering field of dielectrics in the moment method is calculated by using the equations of the boundary element method, and the impressed field of current distribution in the boundary element method is calculated by using the approximation of the current distribution in the moment method. A helical antenna loaded with a cylinder was chosen as a calculation model, and the calculated results were compared with experimental results, verifying the method's applicability

キーワード
antenna radiation patterns
biomedical NMR
boundary-elements methods
loop antennas
備考
Digital Object Identifier: 10.1109/20.42376
Published with permission from the copyright holder. This is the institute's copy, as published in Magnetics, IEEE Transactions on, Sep. 1989, Volume 25, Issue 5, Pages 3602 - 3604.
Publisher URL:http://dx.doi.org/10.1109/20.42376
Copyright © 1989 IEEE. All rights reserved.
発行日
1989-9
出版物タイトル
Magnetics
25巻
5号
開始ページ
3602
終了ページ
3604
資料タイプ
学術雑誌論文
言語
英語
査読
有り
DOI
Submission Path
electricity_and_magnetism/113