A cavity-backed antenna element and array antenna arrangement

Abstract

The present disclosure relates to an antenna element (1) comprising a lower conducting plane (2), an upper conducting plane (3) and an upper dielectric layer structure (4) that is positioned between the conducting planes (2, 3). The upper dielectric layer structure (4) comprises a plurality of conducting vias (5) that electrically connect the conducting planes (2, 3) to each other and circumvent an upper radiating patch (6) formed in, below or above the upper conducting plane (3). The conducting vias (5) circumvent at least one intermediate radiating patch (7, 8) that is formed in the upper dielectric layer structure (4), and a lowest intermediate radiating patch (7) that is closest to the lower conducting plane (2) is connected to a feed arrangement (9, 10) that comprises at least one feeding probe (9, 10) that extends via a corresponding aperture (13) in the lower conducting plane (2) and is electrically connected to the lowest intermediate radiating patch (7).

Dependencies are inferred from the claim text.