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Development of double-electrode applicator for localized thermal therapy

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4 Author(s)
Kotsuka, Y. ; Fac. of Eng., Tokai Univ., Kanagawa, Japan ; Hankui, E. ; Hashimoto, H. ; Miura, M.

A double-electrode applicator for localized thermal therapy is developed by breaking through the construction principle of the capacitive applicator. To make the beam of the electric field narrow, a ferrodielectric material is introduced as the sub-electrode. The optimum configuration of the double electrode and the material constant in each part of this applicator are investigated theoretically and experimentally. Good localised deep-heating characteristics are obtained at an operating frequency of 13.56 MHz and an output power 450 W by choosing a ferrodieletric material (BaTiO3) with a relative permittivity of 6000 as the sub-electrode.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:48 ,  Issue: 11 )