Antenna and mobile terminal

Abstract

The invention relates to an antenna and a mobile terminal. The antenna comprises a metal shell, a first circuit board and a first connecting rib, the first circuit board comprises a first floor layer, the first circuit board is provided with a first breaking joint, the first breaking joint penetrates through the first floor layer, the metal shell is provided with a first slit and a second slit to enable the metal shell to form a first shell, an intermediate shell and a second shell arranged in sequence, the intermediate shell is electrically connected with the first floor layer to enable the intermediate shell to form a system ground, the first connecting rib is arranged at the first slit, the first shell is electrically connected with the intermediate shell through the first connecting rib, the first slit forms a first slit segment through the first connecting rib, the first slit segment and the first breaking joint are both bar-shaped structures, the first slit segment is arranged opposite to the first breaking joint, the length dimension of the first slit segment and the length dimension of the first breaking joint are equal, and the first shell forms a radiator of the antenna. The first breaking joint is provided so that the clearance of the antenna is additionally provided, and the performance of the antenna is enhanced.

Description

Technical field [0001] The present invention relates to the field of antenna technology, in particular to an antenna and a mobile terminal. Background technique [0002] Portable devices such as mobile phones and tablet computers are equipped with antennas so as to be able to receive and transmit electromagnetic wave signals to achieve wireless communication. [0003] For a three-section antenna structure, usually, the top area of ​​the metal back shell is used as a radiator, and the matching circuit cooperates to realize the reception and transmission of multi-band signals. [0004] However, due to the small size of the portable device, the antenna has a small headroom. It is difficult to achieve multi-band coverage of the antenna only through the top area of ​​the metal back shell, and the performance of some frequency bands matched by the matching circuit will also be poor. Summary of the invention [0005] The invention provides an antenna and a mobile terminal, which can realize...

AI Technical Summary

Problems solved by technology

[0004] However, due to the small size of the portable device, the headroom of the antenna is small, and it is difficult to achieve multi-band coverage of the antenna only through the top area of ​​the metal back shell, and the performance of some frequency bands matched by the matching circuit will also be poor.

Images