Patent ID: 8179332
Filing Date: 2012-05-15
Classification: H01Q

Abstract:
1. An antenna coil comprising: a flat magnetic core; a flexible substrate wound around the magnetic core and including a conductor on a surface of the flexible substrate; a first coil portion defined by the conductor and having a coil axis parallel or substantially parallel with a main surface of the magnetic core; a second coil portion defined by the conductor and having a coil axis parallel or substantially parallel with the main surface of the magnetic core, the second coil portion being connected to the first coil portion; a first coil connection defined by the conductor and defining a portion of the first coil portion; and a second coil connection defined by the conductor and defining a portion of the second coil portion; wherein the flexible substrate includes a conductor-free portion where the conductor is not formed, the conductor-free portion being disposed between the first coil portion and the second coil portion; and the first coil connection and the second coil connection are arranged to be connected to a wiring pattern on an external circuit board so as to selectively connect the first coil portion to the second coil portion in series or in parallel.