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Authors Yang D, Bertram JM, Converse MC, O'Rourke AP, Webster JG, Hagness SC, Will JA, Mahvi DM
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Journal IEEE Trans Biomed Eng Volume: 53 Issue: 3 Pages: 533-7
Publish Date 2006 Mar
PubMed ID 16532780
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. Index Terms-Ablation, coaxial aperture antennas, finite element methods, floating sleeve, microwave heating.

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