| 摘要 |
PURPOSE: An antenna device and a wireless communication device using the same are provided, which have a large frequency bandwidth and radiation gain with a low Q value, and has a low scattering of a resonant frequency and a VSWR. CONSTITUTION: A slot antenna has the first conductor layer(2) covering an outer surface and a slot part(3) formed on the first conductor layer and an insulation extending part(31) extended vertically to a surrounding direction of an insulation substrate(1) from a center of the slot part. And the second conductor layer(4) is installed in the insulation extending part and is insulated electrically from the first conductor layer. The first conductor layer comprises a radiation conductor layer(21) on an upper surface of the insulation substrate, a ground conductor layer part on a bottom surface of the insulation substrate and a conductor layer part(23) connecting the radiation conductor layer and the ground conductor layer part.
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