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Mobile terminal and antenna device thereof

A mobile terminal and antenna device technology, applied in the field of electronics, can solve problems such as poor antenna isolation, achieve the effects of improving antenna performance, reducing mutual influence and interference, and solving poor antenna isolation

Inactive Publication Date: 2017-04-26
QIKU INTERNET TECH SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a mobile terminal and its antenna device, which aims to solve the technical problem of poor antenna isolation of mobile terminals with all-metal back covers

Method used

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Embodiment Construction

[0022] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0024] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but doe...

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PUM

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Abstract

The invention discloses a mobile terminal and an antenna device thereof. The antenna device comprises a back cover prepared by conductors, a front casing prepared by insulators, and a printed circuit board arranged between the back cover and the front casing, wherein the front casing is provided with a conductive body coupled with the back cover, the conductive body is connected with a radio frequency signal source of the printed circuit board as a main antenna, and at least one part of the back cover is connected with the printed circuit board and is taken as a parasitic unit of the main antenna. According to the antenna device, the conductive body coupled with the back cover is arranged on the front casing, the conductive body is connected with the radio frequency signal source of the printed circuit board as the main antenna, middle and high frequency resonance is realized, the at least one part of the back cover is connected with the printed circuit board and is taken as the parasitic unit, and low frequency resonance is realized, the conductive body on the front casing but not the back cover is taken by the main antenna as a main radiator, sharing one radiator with a GPS / WIFI antenna is avoided, mutual influence and interference between a low frequency antenna and a high frequency antenna are greatly reduced, and antenna performance is improved.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a mobile terminal and an antenna device thereof. Background technique [0002] As users continue to have higher requirements on the appearance of mobile terminals, more and more mobile terminals use all-metal rear covers. In order to meet the performance requirements of the antenna and avoid shielding the antenna signal by the metal back cover, the metal back cover is usually incorporated into the antenna design. The existing metal back cover antennas are usually planar inverted F-shaped antennas (Planar Inverted F-shaped Antenna, PIFA) and loop antennas, and are directly fed into the contact mode. The specific design scheme is: the metal back cover usually adopts a three-stage The structure is divided into an upper part, a middle part and a lower part. The upper part and the lower part of the metal back cover are respectively connected to the RF signal source of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/24H01Q1/44H04M1/02
Inventor 赵紫领姚德才
Owner QIKU INTERNET TECH SHENZHEN CO LTD