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Ground potential metal shell radiation antenna

A radiation antenna and metal shell technology, which is applied in the field of ground potential metal shell radiation antennas, can solve problems such as interruption of the metal middle frame, achieve enhanced bandwidth performance, reduce precision cutting processes and nano-injection molding processes, and improve aesthetics.

Active Publication Date: 2015-12-16
深圳汉阳天线设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention proposes a ground potential metal shell radiation antenna, which solves the problem of interrupting the metal middle frame in the prior art in order to ensure the communication quality

Method used

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  • Ground potential metal shell radiation antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 2 As shown, a ground potential metal shell radiation antenna of the present invention includes: a metal front shell 200 , a metal middle frame 210 , a slot 300 and a series resonant circuit 400 .

[0038] The slot 300 is surrounded by the top side 100 of the metal middle frame 210 , the left side 101 of the metal middle frame 210 , the right side 102 of the metal middle frame 210 and the metal front case 200 . The length B of the slot 300 is determined by the width of the mobile phone, and the width C of the slot 300 is determined by the distance from the LCD screen of the mobile phone to the top edge 100 of the metal middle frame.

[0039] One end of the series resonant circuit 400 is connected to the top side 100 of the metal middle frame 210 through a connection line, and the other end is connected to the feed potential 230 through a connection line. The series resonant circuit 400 can make the slot 300 form two different current loops. The first cur...

Embodiment 2

[0041] The following is the second embodiment of the present invention, and the second embodiment has the same parts as the first embodiment, and the same component number will be attached, and as long as there is no special mention, it is regarded as having the same structure and function.

[0042] Such as image 3 As shown, in this embodiment, the ground potential metal shell radiation antenna also includes a first coupling element 600, a second coupling element 601, and a third coupling element 602. In the assembly of the mobile phone, it can be fixed by screws or contacted with the metal in the mobile phone. The top sides 100 of the frame 210 are connected. The position of the third coupling element 602 is close to the portion of the primary resonance of the slot 300 where the current is the smallest. The length of the third coupling element 602 can effectively control the frequency of the primary resonance of the slot 300 so that it can generate resonance in the low freq...

Embodiment 3

[0045]The following is the third embodiment of the present invention, and the third embodiment has the same parts as the first embodiment, and the same component number will be added, and as long as there is no special mention, it is regarded as having the same structure and function.

[0046] Such as Figure 4 As shown, in this embodiment, the ground potential metal shell radiation antenna also includes a first coupling element 600, a second coupling element 601 and a third coupling element 602. In the assembly of a mobile phone, the first coupling element 600 and the second coupling element 601 It can be connected to the left side 101 and the right side 102 of the metal middle frame respectively by screw fixing or spring contact, and the third coupling element 602 can be connected to the top side 100 of the metal middle frame by screw fixing or spring contact.

[0047] The position of the first coupling element 600 and the second coupling element 601 is closer to the metal ...

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PUM

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Abstract

The invention provides a ground potential metal shell radiation antenna, comprising a front metal shell, a middle metal frame, a slit and a series resonance circuit, wherein the slit is surrounded by the top side, the left side and the right side of the middle metal frame and the front metal shell; one end of the series resonance circuit is connected to the top side of the middle metal frame by a connecting line, and the other end of the series resonance circuit is connected to a feed potential by a connecting line. The ground potential metal shell radiation antenna realizes a continuous characteristic phone structure of the middle metal frame, reduces a precision cutting process and a nano injection molding process in the traditional phone manufacturing process, and improves the attractiveness; moreover, the bandwidth performance of the antenna is strengthened.

Description

technical field [0001] The invention relates to the field of mobile terminal antennas, in particular to a ground potential metal shell radiation antenna. Background technique [0002] With the acceleration of smart phone hardware upgrades, the heat dissipation problem of mobile phones needs to be solved urgently, and the use of metal casings is the easiest solution. However, the use of metal materials for the appearance of mobile phones will inevitably interfere with the radiation of communication signals and reduce communication quality. Moreover, with the continuous upgrade of the communication system, the requirement of an antenna supporting multiple frequency bands has been paid more and more attention by the market, which has brought great difficulties to the design of the built-in antenna of the mobile phone. Among the metal mobile phones emerging in the market, most of them adopt the method of discontinuous metal middle frame. [0003] Such as figure 1 As shown, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/44H01Q1/36H01Q1/50
Inventor 张瑞曲龙跃蓝晓羿张顺吴彦松
Owner 深圳汉阳天线设计有限公司