Phased array antenna device

A phased array antenna device (2), comprising:

• at least one antenna element (5) arranged in a spatial distribution that allows the phased array antenna device (2) to emit and receive superposing radio frequency signals to and from different directions,
• wherein each antenna element (5) is positioned within a corresponding unit cell (1) of the phase array antenna device (2) and
• wherein the unit cells (1) are arranged in a non-overlapping manner next to each other;
• a feeding network for transmitting antenna signals between a common feeding point and the respective antenna element (5),
• wherein the feeding network comprises a plurality of antenna element transmission line segments (4) each running into an antenna element (5);
• a plurality of phase shifting devices (7),
• wherein for each antenna element (5) a corresponding phase shifting device (7) is arranged along the respective antenna element signal transmission line (4) that runs into said antenna element (5);
• and
• a plurality of feeding transmission line segments (8),
• wherein each feeding transmission line segment (8) comprises more than two transition structures (6) distributed along the feeding transmission line segment (8),
• wherein each transition structure (6) provides for a signal coupling between the feeding transmission line segment (8) and the corresponding antenna element transmission line segment (4), thereby connecting several dedicated antenna element transmission line segments (4) with the same feeding transmission line segment (8).