Patent ID: 8604993
Filing Date: 2013-12-10
Classification: H01Q

Abstract:
1. An antenna coil provided on a circuit board comprising: a first magnetic core including a flat plate shaped portion; a second magnetic core including a flat plate shaped portion and being juxtaposed to the first magnetic core with a space therebetween; a first coil portion arranged around the first magnetic core; a second coil portion arranged around the second magnetic core such that a coil axis direction of the second coil portion coincides with a coil axis direction of the first coil portion, and such that a coil winding direction of the second coil portion is opposite to a coil winding direction of the first coil portion; the coil axis direction of each of the first coil portion and the second coil portion extends in a direction along a main surface of the circuit board; and a connecting conductor arranged so as to connect the first coil portion and the second coil portion; wherein an end of the first coil portion is disposed adjacent to a first outside end of the circuit board and an end of the second coil portion is disposed adjacent to a second outside end of the circuit board opposite to the first outside end of the circuit board; an end of the first magnetic core is aligned with an end of the circuit board such that the end of the first magnetic core and the end of the circuit board are coplanar with one another; and an end of the second magnetic core is aligned with another end of the circuit board such that the end of the second magnetic core and the another end of the circuit board are coplanar with one another.