Antenna system and mobile terminal

Abstract

The invention provides an antenna system for a mobile terminal made with a non-metallic back cover. The antenna system comprises a metal support plate, a first mainboard and a first antenna; the firstantenna is arranged at the first short side of the mobile terminal; a first feeding part is arranged on the first mainboard, the first antenna comprises a first feeding point and a first radiating body, the first feeding point is electrically connected with the first feeding part, and the first radiating body comprises a first extension section and a first grounding section; an extension direction of the first extension section is same as the extension direction of the first short side, the first feeding point is arranged at a part, close to the second long side, of the first extension section, the first grounding section is connected between one end, far away from the first point, of the first extension section and the metal support plate, thereby enabling the first antenna to constructa coil antenna. Through the above arrangement, the first antenna is set as the coil antenna, the required clearance region is smaller when the structure type of the coil antenna can acquire good radiation performance, thereby satisfying the wireless communication demand on the mobile terminal with the non-metallic back cover. The invention further provides a mobile terminal.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an antenna system and a mobile terminal. Background technique [0002] As users continue to increase the screen-to-body ratio requirements of mobile terminals, more and more full-screen mobile terminals appear on the market, but only mobile terminals with metal frames can design the non-visible area of ​​the screen Most full-screen mobile terminals with plastic bodies cannot use the middle frame to design antennas, so a large headroom must be left for the antennas, resulting in a large non-visible area of ​​the screen, which cannot take full advantage of the high screen-to-body ratio of the full screen. The published antenna designs used on full-screen terminals with plastic bodies are almost all attached to plastic antenna brackets using FPC. The plastic frame can hardly be used or seldom used due to the reliability requirements of structural design, which dire...

AI Technical Summary

Problems solved by technology

[0002] As users continue to increase the screen-to-body ratio of mobile terminals, more and more full-screen mobile terminals appear on the market, but only mobile terminals with metal frames can design the non-visible area of ​​the screen Most full-screen mobile terminals with plastic bodies cannot use the middle frame to design antennas, so a large headroom must be left for the antennas, resulting in a large non-visible area of ​​the screen, which cannot give full play to the advantages of full-screen screen-to-body ratio

The published antenna designs used on full-screen terminals with plastic bodies are almost all attached to plastic antenna brackets using FPC. The plastic frame can hardly be used or seldom used due to the reliability requirements of structural design, which directly leads to the need for relatively large antennas. Great headroom for ideal performance

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