ANTENNA UNIT AND PREPARATION METHOD THEREFOR, ANTENNA ARRAY, AND ELECTRONIC DEVICE

原文（中国語）

An antenna unit and a preparation method therefor, an antenna array, and an electronic device. The antenna array comprises at least one antenna unit. The antenna unit comprises: a substrate () comprising a first surface and a second surface which are arranged opposite to each other in the thickness direction of the substrate (); a first radiation patch () disposed on the first surface of the substrate (); feed lines () disposed on the first surface of the substrate (), the feed lines () being connected to the first radiation patch (); and a second radiation patch () suspended on the side of the first radiation patch () away from the substrate (), the orthographic projection of the second radiation patch () on the substrate () overlapping the orthographic projection of the first radiation patch () on the substrate ().