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Uniform treatment of different conductor types in two-dimensional eddy-current problems applied to a fast ferrite tuner

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4 Author(s)
S. Kurz ; Inst. fur Theor. of Electr. Eng., Stuttgart Univ., Germany ; J. Fetzer ; G. Lehner ; W. M. Rucker

This paper deals with the numerical solution of two-dimensional (2-D) eddy-current problems. It shows that the numerical description of current-fed massive conductors is closely related to the numerical description of voltage-fed thin wire coils. With the help of this result, a boundary element method-finite element method code originally designed to deal with thin-wire coils could be applied to the optimization of a fast ferrite tuner (FFT). An FFT consists of a closed short-circuited strip line with an inner conductor covered by ferrites. The operating frequency of such a device is limited by parasitic eddy currents. This problem can be overcome by slotting the strip line. Numerical simulations have been performed to judge the effects of the slots

Published in:

IEEE Transactions on Magnetics  (Volume:35 ,  Issue: 6 )