ANTENNA AND WIRELESS COMMUNICATION DEVICE

摘要

An antenna includes an antenna element in which a predetermined electrode is provided on a dielectric base member and a substrate in which a predetermined electrode is provided on a base. A feed-terminal connecting electrode to which a feed terminal provided on the lower surface of the antenna element, an external-terminal connecting electrode to which an external electrode is connected, and a ground-terminal connecting electrode to which a ground terminal provided on the lower surface of the antenna element are provided on the upper surface of an ungrounded area of the substrate. A chip inductor is connected between the external-terminal connecting electrode and the feed-terminal connecting electrode, and a chip inductor is connected between the external-terminal connecting electrode and the ground-terminal connecting electrode. The shortcut of a current route achieved by each of the chip inductors enables the electrical length of the radiation electrode to be reduced and the resonant frequency in a fundamental mode to be specified independently of the resonant frequency in a harmonic mode.