Patent ID: 8288912

Claim:
An electromagnetically excitable coil, comprising: a wire holder; and a wire wound around the wire holder in one winding direction, the wire having a winding start, which is disposed at a first end of the coil, and a winding end, which is disposed at the first end of the coil, using an uneven number of winding layers, the coil having an elongated cross-section and the cross-section having a longer side and a shorter side, the wire being routed from a second end of the coil to the first end of the coil while forming at least one wire crossing at a shorter side of the cross-section; wherein the coil has at least three winding layers, an outermost winding layer being wound only around a portion of the coil, the outermost winding layer and the winding layer disposed directly underneath each having at least one winding gap.