A mobile terminal based on a non-breakpoint metal middle frame and a metal back cover
A mobile terminal, metal middle frame technology, applied in the antenna, telephone structure, branch equipment and other directions, can solve the problems of poor radiation performance, poor GPS comprehensive performance, poor upper hemisphere efficiency, etc., to improve comprehensive performance and scene application scope wide effect
Active Publication Date: 2019-03-08
YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD
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Problems solved by technology
However, a solution like this has the serious defect that the antenna directivity in the upper hemisphere is less efficient when the mobile phone is placed upright. The antenna directivity is mainly concentrated at the bottom of the whole machine, that is, the antenna directivity is in the upper hemisphere when the mobile phone is standing upright. The radiation performance of the antenna is poor, and the radiation performance in the lower hemisphere is good. It can be seen that the mobile terminal with this antenna form is not suitable for some usage scenarios, and the comprehensive performance of GPS is poor.
Method used
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[0029] The core of the present invention is to provide a mobile terminal based on a non-breakpoint metal middle frame and a metal back cover. The user can decide to use the first antenna or the second antenna according to the different placement states of the mobile terminal, regardless of the mobile terminal. In this placement state, there is always one of the first antenna and the second antenna that has good directional performance, and has a wide range of scenarios. It realizes the self-adaptive adjustment of GPS directionality and improves the overall performance of GPS.
[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention...
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The invention discloses a mobile terminal based on a breakpoint free metal middle frame and a metal back cover. The mobile terminal comprises a metal back cover and an antenna system. The antenna system comprises a signal transceiver, an antenna selection module, a first antenna feeding point, a first antenna, a second antenna feeding point, a second antenna and a WIFI routing branch; the second antenna and the WIFI routing branch are spaced by a preset distance. Because the first antenna takes the main board of the mobile terminal as a main ground; the ground has a certain guide effect on the directivity of the antenna; the lower hemisphere performance of the directivity of the first antenna is very good; the second antenna is arranged between the WIFI routing branch and the main ground; because the WIFI routing branch is connected with the main ground, and is equivalent to the ground, the design of the WIFI routing branch enables the upper hemisphere performance of the directivity of the second antenna to be very good; no matter the mobile terminal is placed in which state, the directivity of one antenna of the first antenna and the second antenna is very good; therefore, the scene application range is wide; and the self-adaptive adjustment of the GPS directivity is realized.
Description
technical field [0001] The present invention relates to the technical field of mobile terminals, in particular to a mobile terminal based on a non-breakpoint metal middle frame and a metal back cover. Background technique [0002] With the continuous improvement of users' requirements for the appearance of mobile terminals, more and more mobile terminals with a metal appearance appear on the market. The middle frame of many mobile terminals is a metal middle frame. In order to ensure the effect of the GPS antenna, most mobile terminals There are plastic partition points in the metal middle frame. Only a small part of the metal middle frames of mobile terminals are closed-loop without breakpoints. [0003] In the prior art, the circular slot antenna used on the non-breakpoint metal middle frame mobile terminal has been published, and the design of the GPS antenna is realized by adding a non-metallic window to the non-breakpoint metal middle frame to form a loop antenna frame...
Claims
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IPC IPC(8): H04M1/02H01Q21/00
CPCH01Q21/00H04M1/0206H04M1/0247
Inventor 刘家荣
Owner YULONG COMPUTER TELECOMM SCI (SHENZHEN) CO LTD