On-chip antenna array device

The invention relates to the technical field of communication, in particular to an on-chip antenna array device. The on-chip antenna array device comprises a base, an antenna main body and at least one placement layer, wherein a waveguide power divider is arranged on the base; the placement layer is arranged on the placement plane of the base along the preset direction; and the antenna main body is arranged on the base and the placement layer separately. Therefore, enough antennas can be arranged on the on-chip antenna array device by increasing the number of the placement layers. 本发明涉及通信技术领域，具体而言，涉及一种片上天线阵列装置。该片上天线阵列装置包括基座、天线主体和至少一个放置层，所述基座上设置有波导功分器，所述放置层沿预设方向安装于所述基座的放置平面上，所述天线主体分别设置于所述基座和所述放置层上。由此，可以通过增加放置层的数目，以在该片上天线阵列装置上布置足够多的天线。