Retractable antenna unit for a mobile phone

An antenna unit for a mobile phone comprising:

• a first antenna having an upper end provided with a knob and a lower end provided with a stopper, said stopper also having a wave feeder part, the first antenna having an operable length defined by a distance between the knob and the stopper, the operable length including at least one insulated portion configured to prevent coupling in a retracted position, the first antenna being movable between the retracted position and an extended position;
• a second antenna positioned in fixed spaced relation to the mobile phone to couple with the first antenna in the extended position, and the second antenna being positioned in apposition with the insulated portion of the first antenna in the retracted position;
• and
• a third antenna defining a longitudinal hole for the positioning of the first antenna and being configured to be connected with the first antenna in the extended position and configured to be connected with the second antenna when disconnected with the first antenna in the retracted position.