Patent ID: 8400365
Filing Date: 2013-03-19
Classification: G06K,H01Q,H04B

Abstract:
1. An antenna device comprising: a feeding member including a coil pattern; an emitting member arranged to emit a transmit signal supplied from the feeding member and/or to receive a receive signal and supply the receive signal to the feeding member; and a conductor member that is opposed to the emitting member; wherein the emitting member includes an opening portion and a slit portion communicating with the opening portion, and, when seen in plan view from a direction of a winding axis of the coil pattern, the opening portion of the emitting member and an inner region of the coil pattern overlap each other at least partially and the emitting member and the coil pattern overlap each other at least partially; and the conductor member and the emitting member are coupled to each other through a capacitance.