An antenna device and a wireless communication device

Parasitic element in each parasitic element array has substantially parallel strip-shaped in the longitudinal direction of the dipole antenna, it is formed at predetermined intervals. Parasitic element array is arranged to form a plurality of gaps for propagating radio wave from a dipole antenna, a central axis extending in the longitudinal direction of the midpoint of the dipole antenna to the waveguide direction of the high-frequency signals, a plurality of free It is arranged in the longitudinal direction of the middle point of the parasitic element group dipole antenna constituted by the feed device array so as not to overlap with each other and the central axis extending in the waveguide direction of the high-frequency signal.