Auxiliary structure for increasing bandwidth of antenna and electronic apparatus suited therefor

The utility model discloses an auxiliary structure for increasing the bandwidth of an antenna. The auxiliary structure is used cooperatively with the antenna which comprises a radiation part. The auxiliary structure comprises an excitation part, a first opening, and a second opening. The excitation part and the radiation part are spaced by a coupling distance for coupling electromagnetic waves radiated by the radiation part. The first opening penetrates through the excitation part and the vertical projection of the first opening is at least partially overlapped with the radiation part. The second opening also penetrates through the excitation part and is located at one side of the first opening. A certain spacing distance is arranged between the second opening and the first opening. The utility model also discloses an electronic apparatus comprising the aforementioned auxiliary structure and antenna. The auxiliary structure for increasing the bandwidth of the antenna based on the utility model can be applied