an electronic device

A technology of electronic equipment and power feeding, applied in circuits, antenna equipment with additional functions, electrical components, etc., can solve problems affecting bandwidth and radiation performance, destroying product appearance design, etc., to overcome antenna bandwidth and efficiency, and maintain appearance Design, the effect of good design
CN104934706BActive Publication Date: 2017-04-12HUAWEI DEVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUAWEI DEVICE CO LTD
Publication Date
2017-04-12

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Abstract

The embodiment of the present invention discloses an electronic device. The electronic device is provided with a metal frame. The electronic device also includes an antenna feed point, an antenna ground, a feed branch, a ground branch, an antenna resonant arm, a variable capacitor, and a control circuit, the antenna resonant arm is a part after the metal frame is divided, the antenna feed point is set on the feed branch, the antenna resonant arm is provided with a first connection part and a second connection part, and the first connection part is arranged at the antenna resonator arm The first end, the second connecting part is arranged between the first end and the second end of the antenna resonant arm, the feeding branch is arranged between the second connecting part and the antenna ground, and the grounding branch is arranged at the first Between the connecting part and the ground of the antenna, a variable capacitor is arranged on the feeding branch, and the variable capacitor is arranged between the antenna feeding point and the second connecting part, and the control circuit is used to adjust the capacitance of the variable capacitor. Through the above disclosure, the technical solution provided by the present invention can take into account the bandwidth and efficiency of the antenna and keep the appearance of the metal frame of the whole machine consistent.
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Description

technical field

[0001] The invention relates to the technical field of communication, in particular to an electronic device. Background technique

[0002] Today's electronic devices such as mobile phones, PDAs, and tablet computers need to increase the proportion of the display and reduce the volume of the device in order to pursue a stylish appearance, feel, and visual experience. Correspondingly, under this demand, the space that can accommodate the antenna is also increasing. smaller.

[0003] In this environment, the efficiency and bandwidth of the antenna will be more difficult to achieve. Furthermore, recently, electronic devices are becoming thinner and more integrated with metal element design. Traditional antenna design methods will affect bandwidth and radiation performance due to metal element shielding. Therefore, non-metallic materials must be used as antenna carriers (antenna carriers) or antenna covers in the antenna area. (antenna cover), which will destroy...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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