ANTENNA, AND ELECTRONIC DEVICE HAVING ANTENNA

摘要

In order to obtain a high antenna gain even at relatively high frequencies using a circuit board, this antenna comprises a circuit board consisting of a laminated body comprising a dielectric board 101, which is a composite material containing a fluororesin and glass fiber cloth, and copper foils 102 and 103 of which the surfaces that are in contact with the fluororesin have a two-dimensional roughness Ra of less than 0.2 µm. A radial element portion 103a, which is an antenna pattern, is formed using the copper foil 103.