Mobile terminal and antenna device thereof
A mobile terminal and antenna device technology, applied in the electronic field, can solve problems such as poor antenna isolation, achieve the effects of improving antenna performance, solving poor antenna isolation, satisfying consistency deviation and actual user experience
Inactive Publication Date: 2017-05-31
QIKU INTERNET TECH SHENZHEN CO LTD
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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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[0028] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0029] 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.
[0030] 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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The invention discloses a mobile terminal and an antenna device thereof. The antenna device comprises a rear cover, a front shell and a printed circuit board, wherein the rear cover is made of a conductor, the front shell is made of an insulation body, the printed circuit board is arranged between the rear cover and the front shell, an electrical conductor is arranged on the front shell and is coupled to the rear cover, the electrical conductor is connected with a radio frequency signal source of the printed circuit board to be used as a main antenna, at least one part of the rear cover is connected with the ground of the printed circuit board to be used as a parasitic unit of the main antenna, and a tuning device is connected between the parasitic unit and the printed circuit board. The electrical shell coupled to the rear shell is arranged on the front shell, the electrical conductor is connected with the radio frequency signal source of the printed circuit board to be used as the main antenna, so that high- and immediate-frequency tuning is achieved; and the at least one part of the rear cover is connected with the ground of the printed circuit board to be used as the parasitic unit, low-frequency running is achieved, so that the main antenna takes the electrical conductor on the front shell as a main radiation body rather than the rear cover and does not share the same radiation body with a GPS / WIFI antenna, the mutual influence and interference between the main antenna and the GPS / WIFI antenna are greatly reduced, and the isolation degree of the antenna 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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IPC IPC(8): H01Q1/24H01Q1/52H01Q1/50H01Q5/307H01Q5/314
Inventor 赵紫领姚德才
Owner QIKU INTERNET TECH SHENZHEN CO LTD