BUILT-IN ANTENNA DEVICE FOR PORTABLE TERMINAL, INCLUDING CARRIER INTERPOSED BETWEEN SHIELD PLATE AND ANTENNA PLATE

摘要

PURPOSE: A built-in antenna device is provided to form an antenna plate and a shield plate integrally into a single unit and allow for ease of manufacture and assembly by arranging a carrier between the shield plate and the antenna plate, and prevent interferences between circuit devices and the antenna plate by the shield plate. CONSTITUTION: A built-in antenna device(100) comprises a shield plate(101) earthed to a ground which is formed by depositing a conductive material in a predetermined region of an inner surface of a terminal; an antenna plate(102) opposed to the shield plate in the vicinity of the inner surface of the terminal; and a carrier(103) made of an insulating material and interposed between the shield plate and the antenna plate.