Reconfigurable antenna device from omnidirectional antenna to phased array

The invention discloses a reconfigurable antenna device from an omnidirectional antenna to a phased array, and relates to the technical field of navigation communication between the ground and an aircraft. The antenna device comprises a tower pipe, a multi-column directional antenna, a power divider, a first connector and a second connector; the multi-column directional antenna is arranged at the periphery of the tower pipe, the power divider is arranged at the lower end of the tower pipe, the first connector and the second connector are arranged on the multi-column directional antenna, and the power divider is connected with the multi-column directional antenna through the first connector and the second connector. The antenna device has the advantages that the device can be installed on the standard iron tower pipe, a corresponding installation tower pipe does not need to be specially manufactured, when an omnidirectional antenna is used, the good out-of-roundness characteristic is achieved, and when a phase