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an antenna

A technology for antennas and antenna radiators, applied to antennas, antenna parts, antenna grounding devices, etc., can solve the problems of antenna bandwidth not being expanded and antenna performance poor, to improve antenna efficiency, expand antenna bandwidth, and stabilize performance sex high effect

Active Publication Date: 2019-03-08
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

refer to figure 1 , the bottom of the metal back shell is used as a part of the antenna radiator and the appearance. The feeding point and the grounding point of the antenna are located on both sides of the metal shell respectively. The existing antenna structure does not use adjustable devices, and the bandwidth of the antenna cannot be expanded. , and the performance of the antenna is also poor

Method used

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Embodiment Construction

[0027] In order to understand the characteristics and technical contents of the embodiments of the present invention in more detail, the implementation of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The attached drawings are only for reference and description, and are not intended to limit the embodiments of the present invention.

[0028] An embodiment of the present invention proposes an adjustable antenna based on a metal back shell. The technical solution of the embodiment of the invention combines an antenna radiator based on a metal back shell with an adjustable capacitor, and uses a simple tuning method to widen the frequency bandwidth. At the same time, the technical solution of the embodiment of the present invention only uses the metal back shell without additional antenna branches and tuning switches, which saves costs and is easy to design, and can be well applied to the design of mobile ph...

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Abstract

The invention discloses an antenna comprising a metallic housing equipped with a slit. The slit divides the metallic housing into two parts. The first part of the metallic housing is used as an antenna radiator. The second part of the metallic housing is used as the ground. The antenna radiator is provided with a feed point, a ground point, and a capacitor connection point. The feed point is connected with the antenna radiator and a feed signal. The ground point is connected with the antenna radiator and the ground. The capacitor point is connected with the antenna radiator and an adjustable capacitor.

Description

technical field [0001] The invention relates to antenna technology, in particular to an antenna based on a metal shell. Background technique [0002] With the fourth generation (4G, 4 th Generation) communication technology is developing rapidly, and current mobile terminals are increasingly supporting 4G networks, which requires antennas to have a wider bandwidth to meet the needs of users. On the other hand, with the further popularization of 4G terminals, the homogenization of mobile phones is becoming more and more serious, and people have higher and higher requirements for mobile phones, such as: the texture of the body, the user's online experience, etc. For this reason, many mobile phone manufacturers have launched metal models, among which all-metal integrated mobile phones are popular among consumers because of their beauty and fashion. While all-metal mobile phones improve the quality and grade of mobile phones, the performance of the antenna is also reduced due...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/44H01Q1/48H01Q1/50H01Q1/24
CPCH01Q1/242H01Q1/44H01Q1/48H01Q1/50
Inventor 何其娟
Owner LENOVO (BEIJING) LTD