Multibending antenna structure

A multibending antenna structure, comprising:

• a substrate;
• a microstrip antenna layer disposed on one side of the substrate, the microstrip antenna layer comprising a plurality of radiation units which are respectively formed in a multibending shape and forming a concave area, the radiation units being sequentially connected to form an antenna array, wherein a plurality of antenna arrays are disposed in transversely parallel arrangement, with an interval distance between each two neighboring antenna arrays;
• and
• at least a decouple unit disposed between the neighboring antenna arrays, the decouple unit comprising a conductive portion and a plurality of restrain portions, the restrain portions laterally extending from the conductive portion, each restrain portion extending to be inserted into the corresponding concave area, such that the restrain portion restrains a sensing current of the corresponding radiation unit in the concave area.