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Multi-branch mobile terminal antenna and mobile terminal thereof

A mobile terminal antenna and mobile terminal technology, applied in the direction of antenna, antenna coupling, antenna support/installation device, etc., can solve the problems of not being able to reach low-frequency bandwidth, restricting low-frequency bandwidth, and small clearance end face, so as to increase independence and reduce Environmental requirements, the effect of improving joint bandwidth

Active Publication Date: 2015-04-29
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned "G"-shaped structure has obvious disadvantages: on the one hand, it restricts the low-frequency bandwidth, and on the other hand, it requires a large headroom area
However, due to the compact design of the mobile terminal, the available headroom of the antenna is small or long. If the above-mentioned "G"-shaped antenna is used, the best low-frequency bandwidth cannot be achieved.

Method used

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  • Multi-branch mobile terminal antenna and mobile terminal thereof
  • Multi-branch mobile terminal antenna and mobile terminal thereof
  • Multi-branch mobile terminal antenna and mobile terminal thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0044] A mobile terminal using the above-mentioned multi-branch mobile terminal antenna. The mobile terminal includes a narrow border. When the multi-branch mobile terminal antenna is installed, the flat plate 7, the first ground terminal 8-1, the second ground terminal 8-2, and the feed terminal 9 are bent. After bending, the high-frequency radiation branch 1 and The first parasitic branch 3 is located in the clear end projection area on the terminal main board 10, the low-frequency radiation branch 2 extends along the top surface of the inner wall of the narrow border, and the second parasitic branch extends along the top surface of the inner wall of the narrow border.

[0045] The above-mentioned solution makes reasonable use of the clear end face and narrow side top face of the terminal, which not only satisfies the need for radiation to flow, but also flexibly adapts to the appearance design of the terminal. The antenna avoids the "G"-shaped structure, makes more reasonable ...

specific Embodiment approach 2

[0048] The high-frequency branch 1 and the first parasitic branch 3 are located in the projection of the clearance plane on the terminal main board 10. The low-frequency radiation branch 2 is a single trace and extends along the top surface of the narrow border; the second parasitic branch 4 It is a single trace that extends along the top surface of the narrow border. In the slot 6-3, a capacitor or capacitive element 11 is connected between the high-frequency radiation branch 1 and the first parasitic branch 3 to enhance coupling.

[0049] The high-frequency radiation branch 1 is a main high-frequency radiator, corresponding to a first resonance point.

[0050] The first parasitic branch 3 is an internal parasitic high-frequency radiator, which extends close to the first branch 1 and can be as long as required for actual debugging, corresponding to a second resonance point.

[0051] The second parasitic branch 4 is an external parasitic high-frequency radiator, corresponding to a t...

specific Embodiment approach 3

[0053] The high-frequency branch 1 and the first parasitic branch 3 are located in the projection of the clearance plane on the terminal main board 10. The low-frequency radiation branch 2 is a single trace and extends along the top surface of the narrow border; the second parasitic branch 4 It is a single trace that extends along the top surface of the narrow border. A coupling sheet 12 is provided above or below the slot 6-3 to enhance coupling. The coupling sheet is a metal sheet.

[0054] The high-frequency radiation branch 1 is a main high-frequency radiator, corresponding to a first resonance point.

[0055] The first parasitic branch 3 is an internal parasitic high-frequency radiator, which extends close to the first branch 1 and can be as long as required for actual debugging, corresponding to a second resonance point.

[0056] The second parasitic branch 4 is an external parasitic high-frequency radiator, corresponding to a third resonance point, and a weak coupling is for...

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Abstract

The invention provides a multi-branch mobile terminal antenna. The mobile terminal antenna comprises a main antenna body and a passive antenna body, and is characterized in that the passive antenna body comprises two or more passive branches. The double-branch or multi-branch passive antenna body is introduced into the mobile terminal antenna, multiple resonance points are formed in the strong coupling, weak coupling and multi-branch manner, and the band width can be effectively expanded. Meanwhile, the invention further provides a mobile terminal adopting the multi-branch mobile terminal antenna; the mobile terminal has favorable band width expanding performance, and can be adaptive to the multi-band application requirement.

Description

Technical field [0001] The invention relates to a multi-branch mobile terminal antenna and its mobile terminal Background technique [0002] The miniaturization and multi-frequency of mobile terminals pose severe challenges to antenna design. For example, ordinary multi-band antennas have the disadvantage that high and low frequency branches restrict each other in antenna performance. In design, low frequency branches are generally used to surround high frequency branches to form a "G"-shaped structure. However, the above-mentioned "G"-shaped structure has obvious shortcomings: on the one hand, it restricts the low-frequency bandwidth, on the other hand, it requires a larger headroom area. As the thickness of the mobile terminal becomes smaller, the height of the top surface of the antenna bracket becomes lower and lower, and the antenna can only use the end face of the clear space for transmission and reception. However, due to the compact internal design of the mobile termina...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/52H01Q5/10H01Q5/392H01Q1/22
Inventor 陈玉稳
Owner VIVO MOBILE COMM CO LTD
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