Mobile terminal and antenna structure thereof
An antenna structure and mobile terminal technology, applied in the field of communication, can solve the problems of reduced antenna performance, high implementation cost, unstable performance, etc., and achieve the effect of improving antenna efficiency and expanding antenna bandwidth
Inactive Publication Date: 2017-03-08
NUBIA TECHNOLOGY CO LTD
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Problems solved by technology
In order to expand the bandwidth of the antenna and improve the performance of the antenna, some solutions in the prior art realize the adjustable frequency of the antenna by designing a complex circuit structure, which is difficult to realize, high in cost and unstable in performance.
[0003] Moreover, in order to reduce the impact of the antenna on the human head, the main antenna of the mobile terminal is generally located at the bottom of the terminal, and electronic devices such as USB connectors and microphones are also placed at the bottom of the terminal, usually placed around or below the antenna, so that These electronic devices have a certain impact on the space and efficiency of the antenna, reducing the performance of the antenna
Method used
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[0026] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0027] The technical solution of the present invention will be described in more detail below with reference to the drawings and embodiments.
[0028] A mobile terminal implementing various embodiments of the present application will now be described with reference to the accompanying drawings. In the following description, use of suffixes such as 'module', 'part' or 'unit' for denoting elements is only for facilitating description of the present invention and has no specific meaning by itself. Therefore, "module" and "component" may be used mixedly.
[0029] Mobile terminals may be implemented in various forms. For example, terminals described in the present invention may include devices such as mobile phones, smart phones, notebook computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (T...
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The invention discloses a mobile terminal and an antenna structure thereof. The antenna structure comprises a mainboard and an antenna main body, wherein the main body is connected with the mainboard, the antenna structure also comprises an antenna tuning circuit and coupling metal, the antenna tuning circuit is arranged between the mainboard and the antenna main body, the coupling metal comprises first coupling metal and second coupling metal, the first coupling metal is arranged in corresponding to the antenna main body, the second coupling metal is arranged in corresponding to a side edge, the antenna tuning circuit comprises a tuning piece and a variable capacitor, one end of the tuning piece is connected with the mainboard, the other end of the tuning piece is bent and then is connected with the main board by the variable capacitor, a connection point of a tail end of one side of the antenna main body and the mainboard is an antenna feeding point, the first coupling metal is coupled to the other side of the antenna main body or the first coupling metal is connected with the tail end of the other side of the antenna main body by a metal short-circuit piece, and a capacitance value of the variable capacitor is controlled and adjusted by a related circuit on the mainboard. With the antenna structure disclosed by the embodiment of the invention, the antenna frequency is adjustable, the antenna bandwidth is greatly expanded, the antenna efficiency is improved, and a 700MHz working frequency band which is needed is generated.
Description
technical field [0001] Embodiments of the present invention relate to but are not limited to the technical field of communications, and in particular, refer to a mobile terminal and its antenna structure. Background technique [0002] With the rapid development of wireless communication technology, the mobile phone standard has changed from 2G to 3G and then to 4G. There are more and more antenna frequency bands, and the requirements for multi-frequency antennas are getting higher and higher. The demand for small-sized, multi-band antennas is getting stronger and stronger. . In order to expand the bandwidth of the antenna and improve the performance of the antenna, some solutions in the prior art realize the adjustable frequency of the antenna by designing a complex circuit structure, which is difficult to implement, high in cost and unstable in performance. [0003] Moreover, in order to reduce the impact of the antenna on the human head, the main antenna of the mobile ter...
Claims
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IPC IPC(8): H01Q5/10H01Q5/50H01Q1/36H01Q1/22
CPCH01Q5/10H01Q1/22H01Q1/36H01Q5/50
Inventor 张昌顺王均松程仕意
Owner NUBIA TECHNOLOGY CO LTD