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Antenna structure and mobile terminal in a metal environment

An antenna structure and environment technology, applied in the field of communication, can solve problems such as poor antenna performance, and achieve the effect of reducing debugging difficulty, improving efficiency, and reducing impact

Active Publication Date: 2019-01-29
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an antenna structure and a mobile terminal in a metal environment, which solves the problem of poor antenna performance in a metal environment in the prior art

Method used

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  • Antenna structure and mobile terminal in a metal environment
  • Antenna structure and mobile terminal in a metal environment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0020] like figure 1 As shown, the first embodiment of the present invention provides an antenna structure in a metal environment, including:

[0021] ground structure 1;

[0022] An antenna radiation structure, the antenna radiation structure includes a first antenna branch 2 and a second antenna branch 3; wherein, the first antenna branch 2 is provided with a feed end 21 and a first radiation end 22, and the feed end 21 and The ground structure 1 is connected; the second antenna branch 3 is provided with a first ground terminal 31 and a second radiation terminal 32, the first ground terminal 31 is connected to the ground structure 1, and the first radiation terminal 22 Set opposite to the second radiating end 32, and a first coupling port 4 is formed between the first radiating end 22 and the second radiating end 32;

[0023] A first metal sheet 5, the first metal sheet 5 is connected to the ground structure 1 through a connecting branch 6;

[0024] A coupling branch 7, t...

no. 2 example

[0049] A second embodiment of the present invention provides a mobile terminal, which includes the antenna structure as described above.

[0050] In the mobile terminal provided by the second embodiment of the present invention, the first antenna branch and the second antenna branch form antenna high-frequency resonance, and since the coupling branch presents a large inductance characteristic during high-frequency resonance, it presents high impedance to high frequency, The high-frequency resonance is mainly controlled by the first antenna branch and the second antenna branch, that is, the antenna structure is not affected by the first metal sheet in the free resonance state, which greatly reduces the influence of the first metal sheet on the high-frequency resonance of the antenna. This reduces the difficulty of high-frequency resonance debugging and improves the efficiency of the high-frequency resonance antenna; at the same time, the coupling branch connects the low-frequenc...

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Abstract

The invention provides an antenna structure in a metal environment and a mobile terminal. The antenna structure includes a grounding structure, an antenna radiation structure, a first metal sheet and a coupling branch; the antenna radiation structure includes a first antenna branch and a second antenna branch; the first antenna branch is provided with a fee end and a first radiation end, and the feed end is connected with the grounding structure; the second antenna branch is provided with a first grounding end and a second radiation end, the first grounding end is connected with the grounding structure, the first radiation end and the second radiation end are oppositely arranged, and a coupling port is formed between the first radiation end and the second radiation end; the first metal sheet and the grounding structure are connected through a connecting branch; and the coupling branch is used for connecting low frequency energy of the first antenna branch to the first metal sheet to enable the first metal sheet to participate in low frequency radiation, thereby improving low frequency antenna efficiency. Moreover, since the coupling branch presents a large-inductance characteristic during high frequency resonance, influence of the first metal sheet on high frequency resonance of an antenna is reduced, and high frequency resonance antenna efficiency is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an antenna structure and a mobile terminal in a metal environment. Background technique [0002] Mobile terminals have increasingly urgent demands for differentiated metal appearances, but metal appearances are very difficult to design for antennas. [0003] In the existing metal appearance design, the antenna wiring area is generally made of non-metallic material, or the battery back cover is opened to ensure the realization of the antenna performance; and the antenna wiring area is made of metal material or the battery back cover is not opened. However, the performance of the antenna cannot be guaranteed, and the metal material will cause poor performance of the antenna, affecting the transceiver function of the antenna, and bringing great inconvenience to users; that is, the existing technology cannot guarantee the quality of the antenna for transmitting and receiving u...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/24H01Q1/36H01Q1/48H01Q1/50H01Q1/52H01Q21/00
CPCH01Q1/241H01Q1/36H01Q1/48H01Q1/50H01Q1/52H01Q21/00
Inventor 陈玉稳刘泰林
Owner VIVO MOBILE COMM CO LTD