ANTENNA DEVICE AND ASSEMBLY OF ANTENNA DEVICE

摘要

PURPOSE: To reduce the manufacturing cost of an antenna system used for a mobile communication unit or the like. CONSTITUTION: This antenna system 1 is provided with a base 2, made of at least a dielectric or a magnetic body and having an upper face 21, a lower face 22 and a couple of side faces 23 on which recessed parts 231 and projections 232 are alternately formed and with conductor layers 3, 4, 5 that are formed on the upper and lower faces 21, 22 and the projections 232 or the recessed parts 23 of a pair of the side faces 23 of the base 2 and surround the base 2 into a spiral shape as a whole.