Antenna unit and feeding component

An antenna unit comprising:

• a first metal plate serving as a ground electrode and having a main surface, a rear surface and a pair of cut and raised parts raised from said main surface at both ends of said first metal plate;
• a second metal plate opposite to said main surface of said first metal plate;
• and
• a feeding component mounted on said main surface of said first metal plate and having a wire and an attaching member made of resin, said attaching member supporting said wire against said first metal plate,
• wherein said attaching member has, at both ends thereof, a pair of engaging parts engaged with said cut and raised parts for attaching said attaching member to said first metal plate without projecting of any parts of said attaching member from said rear surface of said first metal plate.