Antenna structure of large-screen all-metal-frame mobile phone

Abstract

The present invention discloses an antenna structure of a large-screen all-metal-frame mobile phone. The antenna structure comprises a metal frame at the left side, a metal frame at the right frame and a metal frame at the lower end which are connected into one body, the metal frame at the lower end is provided with a first opening and a second opening and is divided into a first radiator, a second radiator and a third radiator in order from left to right by employing the first opening and the second opening, a feed point is arranged at a position of the tail end of the second radiator, an antenna place is arranged at the middle portion of the second radiator, a distance between the feed point and the antenna place is 15-20mm, the metal frame at the left side or the first radiator is provided with a first grounding point, and the metal frame at the right side or the second radiator is provided with a second grounding point. The antenna structure of the large-screen all-metal-frame mobile phone achieves matching from the low-frequency natural resonance to the actually required low-frequency resonance position through increasing of the distance between the ground feed points and provides the antenna performances.

Description

【Technical field】 [0001] The invention belongs to the technical field of communication, and in particular relates to an antenna structure of a large-screen all-metal frame mobile phone. 【Background technique】 [0002] During the rapid development of the mobile phone industry, consumers' demand for mobile phones has gradually increased their demand for mobile phone appearance and aesthetics from simple functions; in this context, mobile phone designs are becoming more and more ultra-thin. The antennas of modern mobile phone terminals are mostly built-in antennas, and the built-in antennas will be interfered by the surrounding metal electronic components. For mobile phones with large screen size and metal frame, although it provides effective protection for the overall strength of the mobile phone and the display of the mobile phone screen in terms of thinning and lightening, it is hindered in the aspect of mobile phone signal radiation. Due to the relatively large size of suc...

AI Technical Summary

Problems solved by technology

For mobile phones with large screen size and metal frame, although it provides effective protection for the overall strength of the mobile phone and the display of the mobile phone screen in terms of thinning and lightening, it is hindered in the aspect of mobile phone signal radiation. Due to the relatively large size of such mobile phones, resulting in The electrical length of the antenna with the metal frame radiator in the middle is too long. The existing solution is that the site is located next to the feed point and the distance is relatively close, and the natural resonance is much lower than the required resonance. It is necessary to adjust the antenna through the matching adjustment on the antenna feed point. The position is matched to the actual required resonance position, and the resulting antenna radiation efficiency is relatively low, resulting in poor mobile phone signal radiation effect

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