ANTENNA DEVICE

摘要

An antenna device comprising a ground plate having an end and an antenna mounted on the ground plate. The antenna includes a dielectric block having an upper surface, a lower surface, and a side face; a radiation electrode provided on the upper surface; and a short circuit electrode provided on the side face. The radiation electrode has a short circuit end connected with the short circuit electrode and has a portion extending from the short circuit end along the outer periphery of the upper surface of the dielectric block. The portion has an open end located at a side of the dielectric block. The side face of the dielectric block is substantially flush with the end of the ground plate. The antenna device enhances radiation characteristics of a chip antenna and the size of a communication device can be reduced.