Antenna

The utility model discloses an antenna. The antenna comprises a main reflecting plate; the number of the array units is multiple, the multiple array units are distributed on the two sides of the thickness direction of the main reflecting plate, and each array unit comprises a substrate; a first radiator and a second radiator; the coaxial line group comprises a first coaxial line, and a first end of an inner conductor of the first coaxial line is configured to be a feeding point; the first end of the inner conductor of the second coaxial line and the first end of the inner conductor of the third coaxial line are connected with the second end of the inner conductor of the first coaxial line; and the second end of the inner conductor of the second coaxial line and the second end of the inner conductor of the third coaxial line are respectively connected with the first radiators of the array units at the two sides of the thickness direction of the main reflecting plate. The antenna provided by the utility model i