Terminal antenna based on metal rear shell and terminal

Abstract

The invention discloses a terminal antenna based on a metal rear shell and a terminal. The antenna comprises a metal rear shell, a grounding element, a first feed matching network, a first feed point located at the left side of a universal serial bus USB, a second feed matching network and a second feed point located at the right side of the USB, wherein one end of the metal rear shell is provided with a gap, the gap separates the metal rear shell to a bottom metal frame and a back metal plate, the bottom metal frame serves as an antenna radiation unit, and the back metal plate serves as a ground; the grounding element is connected with the back metal plate; the first feed matching network is fed to the antenna radiation unit through the first feed point; and the second feed matching network is fed to the antenna radiation unit through the second feed point.

Description

technical field [0001] The present invention relates to antenna technology, in particular to a terminal antenna and a terminal based on a metal back shell. Background technique [0002] With the rapid development of the fourth generation (4G, 4th Generation) communication technology, more and more current mobile terminals support 4G networks, such as the Long Term Evolution (LTE, Long Term Evolution) network, which requires the antenna to have a wider bandwidth to meet user needs. On the other hand, with the further popularization of 4G terminals, the homogenization of mobile phones is becoming more and more serious, and people have higher and higher requirements for mobile phones, such as: the texture of the body, the user's online experience, etc. For this reason, many mobile phone manufacturers have launched metal models, among which all-metal integrated mobile phones are popular among consumers because of their beauty and fashion. While all-metal mobile phones improve ...

AI Technical Summary

Problems solved by technology

While all-metal mobile phones improve the quality and grade of mobile phones, the performance of the antenna is also reduced due to the natural signal shielding characteristics of metal. challenge

[0003] In order not to affect the performance of the antenna, the performance of the antenna can be achieved by slotting the metal back shell, but too many slots affect the appearance. At present, the three-section all-metal back shell has become a trend in smart phone design, and the ratio of the upper and lower metal sections is larger. It has become the focus of competition among various mobile phone manufacturers, but judging from the current popular mobile phone styles on the market, the upper and lower metal parts are still too wide, usually between 5mm and 15mm, resulting in obvious non-conductive plastic areas at the broken seams. Seriously affects the appearance of the phone

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