ANTENNA DEVICE, ELECTRONIC DEVICE AND ANTENNA COVER

摘要

An antenna device is loaded in a note PC (100) and is used for communication between the note PC (100) and the external of the PC (100). The antenna device is provided with an antenna (181) for wireless LAN for transmitting and receiving radio waves, and a cover (302). The cover is formed of a dielectric material for covering the antenna (181) with a wall (302a) and a ceiling (302b), and strengthens the directivity of radio wave communication on the side of the wall (302a) of the antenna device by a double layer structure, which is of the ceiling (302b) and is thicker than the wall (302a).