Mobile terminal sharing radio frequency antenna

Abstract

The invention discloses a mobile terminal sharing a radio frequency antenna. The mobile terminal comprises a printed circuit board (PCB), wherein the PCB is provided with a distance sensing module, aradio frequency module, a filter module that is used to block signals required for the operation of a non-distance sensing module, and a radio frequency antenna module that is used to produce a resonant frequency required for the operation of the distance sensing module and the resonant frequency required for the operation of the radio frequency module, the distance sensing module is connected with the radio frequency antenna module through the filter module, and the radio frequency antenna module is also connected with the radio frequency module. According to the mobile terminal disclosed bythe invention, the radio frequency antenna module that can produce high-frequency and low-frequency resonant frequencies and the filter module are adopted, and thus the distance sensing module and theradio frequency module can share one antenna without affecting each other, the radio frequency performance and distance sensing effect can be simultaneously met by sharing one antenna, and the problem that serious mutual interference is caused as two antennae are close to each other and are both made of metal materials in existing technologies can be solved.

Description

technical field [0001] The invention relates to the field of antenna design of a mobile terminal with a distance sensing function, in particular to a mobile terminal sharing a radio frequency antenna. Background technique [0002] With the development of communication technology, mobile communication products such as mobile phones have become indispensable equipment for people. At present, more and more mobile phones have a distance sensing function. [0003] The distance sensing function can reduce the radiation of the mobile terminal to the human body, and can also save the power of the mobile terminal. When the human body is close to the mobile terminal, the transmission function of the antenna is reduced, thereby reducing the radiation of the antenna to the human body. Therefore, most mobile terminals currently Both are equipped with distance sensing function. [0004] The distance sensing chip and radio frequency chip of existing products are separately connected to t...

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Problems solved by technology

[0006] In view of the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a mobile terminal that shares a radio frequency antenna, aiming to solve the problems of serious interference and high cost of radio frequency modules and distance sensing modules in existing mobile devices

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