Antenna system and mobile terminal

Abstract

The invention provides an antenna system and a mobile terminal, wherein a resonance arm is separated from a metal shell of the mobile terminal, and the antenna system comprises a resonance arm, and afirst tuning circuit and a second tuning circuit, a first feed source circuit and a second feed source circuit arranged between the resonance arm and the grounding end. The resonance arm is formed byarranging a slit on the metal shell, the feed source circuits and tuning circuits connected with the feed source circuits are arranged on the resonance arm, and another tuning circuit is arranged at the tail end of the resonance arm. The switching of the radiation modes is realized at the feed source end of the resonance arm and the tail end of the resonance arm through a switch combination of thetuning circuits, so that medium-high frequency band bandwidth coverage in small clearance environment can be realized by using a single antenna, and the bandwidth requirements of the antenna efficiency and the frequency band in the mobile terminal are met.

Description

technical field [0001] The present invention relates to the technical field of antennas, in particular to an antenna system and a mobile terminal. Background technique [0002] With the development and progress of science and technology, communication technology has developed rapidly and made great progress. With the improvement of communication technology, the popularity of smart electronic products has reached an unprecedented height. More and more smart terminals or mobile terminals have become people's An integral part of life, such as smartphones, smart TVs, and computers. [0003] With the popularization of mobile terminals, users have higher and higher requirements for the types of functions and performance of mobile terminals, such as audio functions, camera functions, camera functions and fast charging functions, etc., have become a must for smart terminals or mobile terminals. Function. [0004] As the functions of mobile terminals become more and more perfect, t...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an antenna system and a mobile terminal to solve the problem that in the existing mobile terminal, it is difficult to achieve multiple frequency bands with one antenna under the requirements of the metal texture of the mobile terminal casing and the small clearance area of ​​the antenna resonant arm. It is difficult to meet the antenna efficiency and bandwidth requirements of frequency bands in mobile terminals.

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