Patent ID: 8421679
Filing Date: 2013-04-16
Classification: H01Q

Abstract:
1. An antenna device comprising: an antenna element; and a printed circuit board on which the antenna element is mounted, wherein the antenna element includes: a loop conductor of a substantially U-shape is provided in a region where the antenna element overlaps with the printed circuit board, one end of the loop conductor is connected to the feed line, the other end of the loop conductor is connected to the ground pattern, the loop conductor includes a first strip conductor pattern arranged to face a first terminal electrode of the plurality of terminal electrodes via a gap having a predetermined width, the first terminal electrode being connected to the other end of the radiation conductor, the antenna element includes a ground conductor formed on the third surface of the base, the ground conductor being connected between the other end of the radiation conductor and the first terminal electrode, the first terminal electrode is formed on one end portion of the second surface of the base, the one end portion being adjacent to the third surface of the base, the plurality of terminal electrodes further include second and third terminal electrodes formed on the other end portion of the second surface of the base, and the printed circuit board includes first to third lands provided in the antenna mounting region, the first to third lands corresponding to the first to third terminal electrodes, respectively, the first land being connected to the ground pattern, the second land being connected to the feed line, the third land being connected to the ground pattern.