ANTENNA COUPLING ELEMENT, ANTENNA DEVICE, AND ELECTRONIC EQUIPMENT

摘要

This antenna device (100) is provided with a first radiation element (11), a second radiation element (12), and an antenna coupling element. The antenna coupling element has: a primary coil (L1) that is connected between the first radiation element (11) and a feed circuit (1); and a secondary coil (L2) that is inductively coupled to the primary coil (L1) and connected between the second radiation element (12) and the ground. By providing a capacitor (C10) between the primary coil (L1) and the secondary coil (L2), current flows from the primary coil (L1) to the secondary coil (L2) or to the second radiation element (12) via the capacitor (C10), even at anti-resonant frequencies of the first radiation element (11).