Multi-band built in antenna

A multi-band built in antenna is provided to controls the transfer position of the secondary radiator for the service frequency band. A power supply pin(324) supplies current to the antenna. The antenna is grounded to the ground pin(325). The first antenna radiation part(321a) processes the fixed frequency band. The second antenna radiation part(321b) is electrically connected to the first antenna radiation part. The second antenna radiation part is separated from the first antenna radiation part in the constant distance. The secondary radiator(330) is electrically contacted with the second antenna radiation part. The supplementary radiator is transferred by the predetermined moving unit.