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A floating sleeve antenna yields localized hepatic microwave ablation

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8 Author(s)
Deshan Yang ; Dept. of Electr. & Comput. Eng., Univ. of Wisconsin, Madison, WI, USA ; Bertram, J.M. ; Converse, M.C. ; O'Rourke, A.P.
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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.

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Biomedical Engineering, IEEE Transactions on  (Volume:53 ,  Issue: 3 )