ANTENNA-FEEDER ARRANGEMENT Russian patent published in 2009 - IPC H01Q21/08 

FIELD: physics; radio.

SUBSTANCE: invention concerns area of microwave frequency radio equipment. The arrangement contains a linear aerial consisting of distributive system with a total input terminal connected to its middle, executed on a rigid coaxial line, dipole radiators and a hybrid ring junction. The subtractive input terminal is connected to the hybrid ring junction on distance in one quarter of wave length from one of the nearest radiators to the middle of distributive system and in three quarters of wave length from another nearest radiator to the middle of the distributive system. The total input terminal of the aerial is connected to an r-t unit through the feeder path of the total channel transiting through a double-channel rotating joint. The feeder path of the total channel is supplied by the antenna switch. The subtractive aerial input terminal is linked to an r-t unit through a circulator, through a feeder path of the subtractive channel, transiting through a double-channel rotating joint.

EFFECT: provision of three-channel formation of air-traffic control system and state identification radars, quantity reduction of high-frequency paths and rotating joints.

4 cl, 2 dwg