Double dipole antenna

The invention relates on a dual dipole antenna, including a first radiation unit, a second radiation unit and a coaxial transmission line. The first radiation unit is shaped with hollow tube and has a first length and a first shelter, while the first shelter is located at one end of the first radiation unit; the second radiation unit is shaped with hollow tube and has a second length and a second shelter, and the second length is larger than the first length, and the second shelter is located at one end of the second radiation unit; the coaxial transmission line has a center conductor and an outer grounding conductor, and the center conductor connects to the first radiation unit, and the outer grounding conductor connects to the second radiation unit. In the invention, for the second radiation unit length larger than the first radiation unit length, the design can achieve that the dual dipole antenna can be used simultaneously for frequency bands of wireless LAN and mobile phones, and it can integrate the antenna design of wireless LAN and mobile phones, reduce production costs, thereby enhance the products competitiveness.