Fig. 3. Reactance spectrum over frequency with (a) various numbers of turns at the diameter of 100 mm and the inter-coil distance of 4 mm, (b) several inter-coil distances at the diameter of 100 mm and 4 turns, and (c) various diameters at the inter-coil distance of 4 mm and 4 turns. Here, the SRFs are marked as arrows.
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