Antenna structure and high-frequency wireless communications terminal

A high-frequency wireless communications terminal, comprising an antenna structure, wherein the antenna structure comprises:

• a metal plate, wherein a first accommodating groove is disposed in the metal plate;
• a plurality antenna units, wherein each antenna unit comprises a radiation piece and a coupling piece;
• and
• a radio frequency module, wherein the radio frequency module is disposed on a first side of the metal plate, and the radio frequency module is electrically connected to each radiation piece;
• wherein
• at least one of the radiation pieces and the coupling pieces is disposed in the first accommodating groove, each radiation piece is insulated from the metal plate, each coupling piece is insulated from the metal plate, the radiation piece and the coupling piece of each antenna unit are disposed opposite each other and insulated from each other, the radiation piece is located between the coupling piece and the radio frequency module, the radiation piece is configured to generate a resonance in a first preset band, and the coupling piece is configured to expand a bandwidth of the resonance in the first preset band;
• wherein a first insulating dielectric layer is disposed on the radio frequency module, the coupling pieces of the plurality of antenna units are disposed in the first insulating dielectric layer and spaced apart from each other, the radiation pieces of the plurality of antenna units are disposed in the first insulating dielectric layer and spaced apart from each other, and the radio frequency module is installed in the first accommodating groove;
• and
• wherein an area of each radiation piece is larger than an area of each coupling piece.