Multi-layer board antenna

The invention discloses a multi-layer board antenna. The multilayer board antenna comprises a metal radiation sheet; a first microwave dielectric substrate arranged below the metal radiation sheet; a feed network layer arranged below the first microwave dielectric substrate; a feed probe passing through the feed network layer from the uppermost surface of the feed network layer; a plurality of short-circuit metal holes which are communicated with the back surface of the feed network layer from the metal radiation sheet and are connected with the structural ground; and at least two feed metal holes leading from the metal radiation sheet to the back surface of the feed network layer and isolated from the structural ground. The antenna is small in size and easy to conform, a multi-layer board structure is adopted, and the short circuit holes are added, so that the distance between the feed metal holes and the center of the antenna can be flexibly adjusted. 本发明公开了一种多层板天线，其包括：金属辐射片；第一微波介质基片，设置在所述金属辐射片的下方；馈电网络层，设置在