Array antenna device

Abstract

An array antenna device includes a carrier, and a plurality of circularly polarized antenna modules, at least one beamforming chip, and a plurality of amplifiers that are disposed on the carrier. The carrier has a thickness direction, and includes a circuit portion, a plurality of antenna portions, and a plurality of welded structures. The circuit portion includes a plurality of boards that are stacked on each other. The boards are symmetrically arranged along a symmetry axis that is perpendicular to the thickness direction. The antenna portions are disposed on the circuit portion. Each of the antenna portions is detachably connected to the circuit portion through one of the welded structures. The circularly polarized antenna modules are respectively disposed on the antenna portions. The beamforming chip is electrically connected to the circularly polarized antenna modules. The amplifiers are disposed on the circuit portion.

Dependencies are inferred from the claim text.