Antenna system and terminal

Abstract

The invention relates to the technical field of wireless communication and specifically relates to an antenna system and an antenna terminal. The antenna system comprises a first antenna and a second antenna, wherein the the first antenna and the second antenna are connected in parallel to an antenna feeding point, a phase shift device is connected in series between the first antenna or the second antenna and the antenna feeding point, and an imaginary part of impedance of the antenna feeding oint is offset near a central frequency point; after the antenna system of an embodiment of the invention, the radio frequency bandwidth of the antenna system in a free space can be expanded, and average efficiency can be improved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to an antenna system and a terminal. Background technique [0002] Operators are paying more and more attention to the antenna performance in the actual application scenarios of handset users. At present, while putting forward requirements on the quality of free space communication, they are gradually putting forward requirements on the communication quality of the head model, hand model and head and hand model of the antenna. Wherein, the communication state of the head-hand model refers to the state of the user's actual conversation. In the state of head-hand model communication, when the head and hands are close to the antenna, it will not only cause the frequency deviation of the antenna, but also absorb energy, which will cause a large decline in the radiation and reception performance of the antenna, especially the antenna with a metal frame structure. ...

AI Technical Summary

Problems solved by technology

In the state of head-hand model communication, when the head and hands are close to the antenna, it will not only cause the frequency deviation of the antenna, but also absorb energy, which will cause a large decline in the radiation and reception performance of the antenna, especially the antenna with a metal frame structure. serious

When the antenna is touched by human hands, the signal indication will drop sharply, resulting in serious consequences such as the user’s phone being dropped, or the network cannot be searched, etc. It can be seen that how to improve the efficiency of the antenna in the scene of head-hand model has become the biggest hotspot and difficulty in antenna design.

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