Abstract
We report a novel coaxial antenna for hepatic microwave ablation. This device uses a floating sleeve, that is, a metal conductor electrically isolated from the outer connector of the antenna coaxial body, to achieve a highly localized specific absorption rate pattern that is independent of insertion depth. This floating sleeve coaxial dipole antenna has low power reflection in the 2.4-GHz IMS band. Ex vivo experiments confirm our numerical simulation results.
Original language | English (US) |
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Article number | 1597504 |
Pages (from-to) | 533-537 |
Number of pages | 5 |
Journal | IEEE Transactions on Biomedical Engineering |
Volume | 53 |
Issue number | 3 |
DOIs | |
State | Published - Mar 2006 |
Funding
Manuscript received January 8, 2005; revised June 28, 2005. This work was supported by the National Institute of Health (NIH) under Grant DK58839. Asterisk indicates corresponding author. D. Yang and S. C. Hagness are with the Department of Electrical and Computer Engineering, University of Wisconsin, Madison, WI 53706 USA. J. M. Bertram is with the Department of Biomedical Engineering, University of Wisconsin, Madison, WI 53706 USA. M. C. Converse, A. P. O’Rourke, and D. M. Mahvi are with the Department of Surgery, University of Wisconsin, Madison, WI 53792 USA. *J. G. Webster is with the Department of Biomedical Engineering, University of Wisconsin, 1550 Engineering Drive, Madison, WI 53706 USA (e-mail: [email protected]). J. A. Will is with the Department of Animal Health and Biomedical Sciences, University of Wisconsin, Madison, WI 53706 USA. Digital Object Identifier 10.1109/TBME.2005.869794
Keywords
- Ablation
- Coaxial aperture antennas
- Finite element methods
- Floating sleeve
- Microwave heating
ASJC Scopus subject areas
- Biomedical Engineering