| 摘要 |
Embodiments of the present invention provide an antenna, an antenna apparatus, a terminal, and a method for adjusting a working frequency band of an antenna. The antenna includes a feeding point, a feeding stub, and a coupling stub. The feeding stub is electrically connected to the feeding point. The coupling stub is coupled to the feeding stub. The coupling stub includes at least two grounding points, where one grounding point in the at least two grounding points is used for grounding, and the other grounding point or grounding points are selectively grounded or not grounded; or when one grounding point in the at least two grounding points is grounded, the other grounding point or grounding points are selectively grounded or not grounded. By using the antenna provided by the embodiments of the present invention, a grounding combination of the coupling stub is changed to cause an increase of working frequency bands of the antenna. Because different grounding combinations are selected and corresponding to different working frequency bands of the antenna, for an antenna clearance area, it is only necessary to meet a maximum clearance area requirement in various grounding combinations, and not necessary to meet clearance area requirements of the antenna in all working frequency band. Thereby, the clearance area does not need to be increased while multi-frequency coverage of the antenna is implemented. |
