Ultra-wideband dual-polarization P-band antenna array based on printing structure

The invention provides an ultra-wideband dual-polarization P-band antenna array based on a printing structure, which comprises a plurality of antenna units, and is characterized in that each antenna unit comprises a dielectric substrate, a feed structure and a metal floor; the two polarized dielectric substrates are arranged in a crossed manner, the crossed included angle is 90 degrees, and the two polarized dielectric substrates are fixed on the metal floor and are in physical contact with the metal floor; the dielectric substrate is divided into an upper layer and a lower layer, and the upper layer comprises a slot line transmission line, dipole double arms and a slot line rectangular matching cavity; transmitting a radio frequency signal to two arms of the dipole for radiation by adopting a slot line transmission line; the middle positions of the left and right arms of the dipole double arms are respectively provided with a connecting structure, and the connecting structures are connected with the dipole d