Communication terminal

Abstract

The embodiment of the present invention discloses a communication terminal which comprises a metal back shell arranged at the back side of the communication terminal. The metal back shell comprises a first back shell and a second back shell. The communication terminal also comprises a motherboard arranged in the communication terminal, and an antenna structure arranged in the communication terminal. The antenna structure comprises an excitation source arranged on the motherboard and antenna lines which are electrically connected to the excitation source. In a plane which is parallel to the metal shell and a plane which is perpendicular to the metal shell, gaps are arranged between the antenna lines and the first back shell. According to the communication terminal provided by the invention, through changing the width of the gap between the antenna lines and the first back shell, the resonant frequency of the antenna in the communication terminal is adjusted, the structure is simple, the requirements of communication terminal overall length and width are reduced, the problem of two long or too short of the antenna resonant frequency of the antenna is avoided, the influence of user head and hands on the antenna performance in the use process of the communication terminal is reduced so as to satisfy the indexes of the communication terminal antenna performance in head and hand testing aspects.

Description

Technical field [0001] The present invention relates to the field of antenna technology, in particular to a communication terminal. Background technique [0002] With the continuous improvement of users’ requirements for the appearance of mobile communication terminals, more and more metal-looking mobile communication terminals appear on the market, but the all-metal back covers of most mobile communication terminals have more gaps or plastic areas. To meet its antenna performance requirements. Only a few mobile communication terminals have only two gaps on the metal back cover. However, the all-metal housing antenna device described in the patent application uses a PIFA antenna. Because the PIFA antenna is very sensitive to the connection position between the feed and the ground, the mobile communication terminal using this antenna structure requires the overall length and width. Higher, otherwise, it is easy to cause the antenna resonance frequency to be too long or too short...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the embodiment of the present invention provides a communication terminal, which can not only reduce the requirement of the antenna structure on the overall length and width of the communication terminal in the existing metal back shell communication terminal, which may easily cause the antenna resonant frequency to be too long or The problem of being too short can also reduce the impact of the user's head and hands on the communication terminal during use

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