Antenna element and antenna array

An antenna element, comprising a dielectric substrate (10), a radiation unit (20), a feed unit (30), and a parasitic unit (40), the dielectric substrate (10) being provided with a first support column (11), the radiation unit (20) and the feed unit (30) being of an integrally formed structure, at least one of the radiation unit (20) and the feed unit (30) being provided with a first through hole (21), the first support column (11) passing through the first through hole (21), the first support column (11) and an inner wall of the first through hole (21) being fixedly connected by means of hot melting, the parasitic unit (40) being provided with a second through hole (41), the dielectric substrate (10) being provided with a second support column (12), the second support column (12) passing through the second through hole (41), and the second support column (12) and an inner wall of the second through hole (41) being fixedly connected by means of hot melting, and the parasitic unit (40) being spaced apart from the radiation unit (20).