A particular device includes a coil and a discontinuous magnetic core. The discontinuous magnetic core includes a first elongated portion, a second elongated portion, and at least two curved portions, where the portions are coplanar and physically separated from each other. The discontinuous magnetic core is arranged to form a discontinuous loop. The discontinuous magnetic core is deposited as a first layer above a dielectric substrate. A first portion of the coil extends above a first surface of the magnetic core. A second portion of the coil extends below a second surface of the magnetic core. The second portion of the coil is electrically coupled to the first portion of the coil. The second surface of the magnetic core is opposite the first surface of the magnetic core.