COIL, ANTENNA APPARATUS, CONTACTLESS POWER FEEDING MODULE, ELECTRONIC DEVICE, AND CONTACTLESS POWER FEEDING SYSTEM

摘要

This coil is provided with a winding structure in which a winding is wound so as to include first and second long-side portions opposing each other and first and second short-side portions opposing each other, and which has a long axis and a short axis. Of the first and second long-side portions and the first and second short-side portions, at least one has a curved shape in which the winding curves toward the outside, and the others have a substantially linear shape.