Broadband wide-angle scanning dual circularly polarized antenna array

The invention provides a broadband wide-angle scanning dual circularly polarized antenna array. The broadband wide-angle scanning dual circularly polarized antenna array is composed of a transceiver chip, a broadband feed network and a plurality of antenna units. Each antenna unit comprises two sub antenna units which are orthogonally arranged; in each antenna unit, one sub antenna unit is connected with one output port of the broadband feed network, and the other sub antenna unit is connected with the other output port of the broadband feed network; the sub-antenna unit at least comprises antenna radiation arms which are in bilateral symmetry and a wide-angle matching layer; and the wide-angle matching layer is used for enabling the sub-antenna units to realize large-angle scanning. In the antenna unit, two sub-antenna units which are orthogonally arranged are adopted, so that the phenomenon of axis deterioration caused by inconsistent phase centers during antenna scanning is avoided. Each sub-antenna unit i