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Antenna structure with metal backshell

A metal back shell and antenna structure technology, which is applied to antenna equipment with additional functions, antenna supports/mounting devices, etc., can solve problems such as inability to receive antenna signals, achieve simple processing technology, reduce occupied positions, and improve The effect of space utilization

Active Publication Date: 2019-03-12
SHENZHEN SUNWAY COMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem that the existing NFC and WPC integrated antenna cannot receive the antenna signal outside the metal back shell when it is placed inside the metal back shell, and proposes an An integrated antenna structure for near-field communication and wireless charging with complete rear shell and simple processing technology

Method used

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  • Antenna structure with metal backshell
  • Antenna structure with metal backshell
  • Antenna structure with metal backshell

Examples

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Effect test

Embodiment 1

[0031] Please refer to figure 2 , Embodiment 1 of the present invention is:

[0032] An antenna structure with a metal back shell, comprising a metal back shell 1, an NFC antenna coil 4 and a WPC antenna coil 5, the metal back shell 1 is an all-metal back shell, and the metal back shell includes a first through hole 2 and The second through hole 3, the first through hole 2 shown in the figure is located below the second through hole 3, in fact the two can also exchange positions, and even the two can be in a left-right positional relationship; the first through hole 2 and the second through hole 3 can be used to install a fingerprint recognition module, a camera module, a flash module or other sensor modules, respectively; One side, and the NFC antenna coil 4 is arranged around the first through hole 2, the WPC antenna coil 5 is arranged around the second through hole 3, and the metal back shell 1 is also provided with a first gap 6, the The first slot 6 connects the first ...

Embodiment 2

[0042] Please refer to Figure 7 , Embodiment 2 of the present invention further increases through holes on the basis of Embodiment 1, such as 3, 4, 5 through holes, and multiple through holes can be connected through multiple gaps; NFC antenna coil and WPC The antenna coil can be arranged around any two through holes, but usually a larger through hole is selected to obtain better performance. Figure 7 Shown is the case of three through holes, the three through holes can be a combination of fingerprint recognition through holes, camera through holes and flash light through holes, and a second gap 8 can be provided between the first through hole 2 and the third through hole 7 . It should be pointed out here that the first slit 6 in the up-down direction must be opened, while the second slit 8 in the left-right direction may not be opened. However, compared with the situation without the second slot 8, the performance of the NFC antenna and the WPC antenna will be enhanced wi...

Embodiment 3

[0044] Please refer to Figure 8 The difference between the third embodiment of the present invention and the first embodiment is that the coils of the NFC antenna and the WPC antenna are surrounded on the same through hole, Figure 8 2 shows that both coils surround the second through hole, wherein the inner circle is placed with the NFC antenna coil, and the outer circle is placed with the WPC antenna coil; it is also possible to place the inner circle with the WPC antenna coil and the outer circle with the NFC antenna coil. In this case, the difference from the first embodiment is that except that the NFC antenna coil and the WPC antenna coil are arranged on the same through hole, the others are the same as the embodiment, and the eddy current generated on the metal back shell can be changed as well. distribution, which enhances the performance of the antenna, so that in this case, the signal of the antenna can also be detected outside the metal rear case.

[0045] In summ...

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PUM

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Abstract

Disclosed in the invention is an antenna structure with a rear metal shell. The antenna structure comprises a rear metal shell, an NFC antenna coil, and a WPC antenna coil. The rear metal shell contains a first through hole and a second through hole; the NFC antenna coil and the WPC antenna coil are arranged at the inner side of the rear metal shell; and the NFC antenna coil encircles the first through hole and the WPC antenna coil encircles the second through hole. Besides, a first slit is also arranged in the rear metal shell; and the first slit is connected with the first through hole and the second through hole. With the through holes formed in the rear metal shell and the slit formed between the through holes, the eddy current distribution of the rear metal shell is changed, so that the shielding effect on the antenna by the rear metal shell is eliminated and the antenna performance is also enhanced.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to an antenna structure with a metal back shell. Background technique [0002] With the development of near-field communication functions of mobile devices at this stage, near-field communication (NFC, Near Field Communication, operating frequency 13.56MHz) and wireless charging (for example, the Qi standard of the Wireless Power Consortium (WPC, WirelessPower Consortium), operating frequency is 100 -200KHz) The application of the function has gradually become the object favored by the majority of customers. In order to realize the above functions, the antenna is essential, so more and more attention has been paid to the research on the design of NFC antenna and WPC antenna. The existing design of these two antennas is: the NFC antenna and the WPC antenna are wound into concentric circles and placed on the battery or metal plate, and ferrite can be added to obtain better antenna p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/24H01Q1/44
Inventor 陈浩赵安平徐雨
Owner SHENZHEN SUNWAY COMM
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