Broadband wide-angle scanning low-profile dual-polarization phased-array antenna

The invention discloses a broadband wide-angle scanning low-profile dual-polarization phased-array antenna, and belongs to the technical field of antenna engineering. According to the antenna, the strong coupling dipole antenna units are adopted, and the characteristic of wide bandwidth is achieved; a planar feed balun and an asymmetric dipole form are adopted to optimize the standing wave of the antenna; the metamaterial wide-angle matching layer is introduced to improve the wide-angle and broadband scanning characteristics of the array; the isolation degree between the dual-polarization ports is optimized by adopting a metal grounding probe; holes are dug in the dielectric substrate to reduce the dielectric constant and inhibit scanning blind spots; the antenna layer and the metamaterial wide-angle matching layer adopt a multi-layer PCB technology, and are easy to process and stable in structure. A simulation result shows that when the antenna unit is used in a phased array, grating lobes do not appear in s