Seamless metal frame antenna structure

A metal frame and antenna structure technology, applied in the structural form of radiating elements, antenna supports/mounting devices, etc., can solve problems such as large gap spacing, complex radiator wiring design, and incompatible with the development trend of miniaturization of electronic products. Achieve the effect of small space occupation and simple structure design

Inactive Publication Date: 2015-08-19
SUNWAY COMM BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned design of the antenna radiator in the gap between the metal frame and the dielectric plate requires a large gap spacing on the one hand, and

Method used

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  • Seamless metal frame antenna structure
  • Seamless metal frame antenna structure
  • Seamless metal frame antenna structure

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038] Example one:

[0039] Please refer to figure 2 , A seamless metal frame antenna structure, including a seamless metal frame 2, an antenna feed point 4 and an antenna matching point 5; the seamless metal frame 2 is a seamless metal shell, which is The metal device 1 is completely enclosed, and a square ring gap 6 is formed between the seamless metal frame 2 and the metal device 1. The metal device 1 may include components such as a main board, a screen, and a battery, which can be regarded as a square metal Block; in the square ring slot 6 set the antenna feed point 4 and the antenna matching point 5, the antenna matching point 5 includes a variable capacitor.

[0040] The seamless metal frame antenna structure further includes four metal shorting blocks 3, the four metal shorting blocks 3 are arranged in the square ring slot 6, two of which are arranged in a pair of the square ring slot 6. On the corners, the other two are set on the sides of the square ring gap, the squar...

Example Embodiment

[0042] Embodiment two:

[0043] Please refer to image 3 The difference between this embodiment and the first embodiment is that the distance between the top edge of the metal device 1 and the metal frame 2 is greater than the distance between the side edge of the metal device 1 and the metal frame 2. Due to the broadband and multi-frequency characteristics of the LTE antenna, the narrow slot on the side of the square ring slot 6 is used to set the antenna feed point 4, and the wide slot on the top side is used to set the antenna matching point 5, which can effectively broaden the low frequency bandwidth of the antenna.

[0044] The distance between the top edge of the metal device 1 and the metal frame 2 can be more than 7mm, preferably more than 8mm; the distance between the side edge of the metal device 1 and the metal frame 2 can be more than 1.5mm, preferably more than 2mm .

Example Embodiment

[0045] Example three:

[0046] Please refer to Figure 4 with Figure 5 This embodiment is a combination of embodiment 1 and embodiment 2. The seamless metal frame antenna structure includes four metal shorting blocks 3, which divide the square ring gap 6 between the metal device 1 and the seamless metal frame 2 into four At the same time, the distance between the top and bottom edges of the metal device 1 and the metal frame 2 is greater than the distance between the side edge of the metal device 1 and the metal frame 2.

[0047] Such as Image 6 Shown is the antenna return loss curve obtained by simulating and optimizing the antenna feeding point 4 and the antenna matching point 5 of the third embodiment of the present invention. The abscissa is the frequency and the ordinate is the return loss. It can be seen that the antenna structure It can cover the LTE high-frequency band, but the low-frequency bandwidth is narrow and cannot be covered. At this time, a variable capacitor is ...

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PUM

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Abstract

The present invention discloses a seamless metal frame antenna structure, which comprises a seamless metal frame (2), an antenna feeding point (4) and an antenna matching point (5). The seamless metal frame (2) is internally provided with a metal device (1). A square ring slot (6) is formed between the seamless metal frame (2) and the metal device (1). The square ring slot (6) is internally provided with the antenna feeding point (4) and the antenna matching point (5). The antenna matching point (5) comprises a variable capacitor. According to the invention, a conventional antenna radiation body is replaced by the above variable capacitor. In this way, the antenna structure occupies less space. Meanwhile, through adjusting the capacitance value of the variable capacitor, the arrangement of low-frequency resonance points can be changed to cover the LTE frequency band.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an antenna structure using a metal frame. Background technique [0002] With the popularization of electronic products, people's pursuit of electronic products is getting higher and higher. In addition to pursuing more functions, fashionable appearance has also become a hot spot for everyone to pursue. Metal-framed phones are gaining popularity due to their stylish looks and better grip. The mobile phone uses a metal frame to make the structure stronger, but it also causes greater interference to the mobile phone antenna. [0003] In the prior art, in order to eliminate the impact of the metal frame on the performance of the mobile phone antenna, the general method is to set multiple openings on the metal frame, so that the disconnected part of the metal frame becomes a part of the antenna, which destroys the continuity of the metal frame , affecting the overall aesthetics of ...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/24
Inventor 陈劫尘郭晓娟
Owner SUNWAY COMM BEIJING
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