Antenna module and radiation efficiency adjustment method

Abstract

The invention discloses an antenna module and radiation efficiency adjustment method, and the antenna module is applied to electronic devices. The antenna module comprises a sensor, an antenna body and a swtiching unit. The antenna body comprises a first grounding path and at least one second grounding patch. The sensor is equiped in the electroic device and is adjacent to the antenna body for sensing the distance of the user. The switching unit couples the sensor and the second grounding path for switching electric connection or disconnecting the second grounding path according to distance between the antenna module and the user, thereby the antenna body grounds at least one second grounding path or first grounding path using the frist connecting path. In the condition that the design freedom degree is maintained and the production cost is controlled, the product can accords with telecommunication act and security regulation.

Description

technical field [0001] The invention relates to an antenna module and a radiation efficiency adjusting method thereof. Background technique [0002] With the development of science and technology, it has become a symbol of keeping up with the pace of the times to carry around with one machine. While chasing the trend, modern people have never forgotten to impose strict requirements on appearance and function. In order to cater to the appetite of users, The development of electronic devices that can emit electromagnetic waves (such as mobile phones or tablet computers) is becoming thinner and more versatile. However, in the face of relevant laws and regulations established by various countries, this trend also makes electronic device manufacturers face severe challenges. [0003] In order to protect the health of consumers, the consumer protection laws and regulations of various countries have stipulated the detection standards and safety regulations of the electromagnetic wa...

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Problems solved by technology

[0006] In view of the above problems, the purpose of the present invention is to provide an antenna module and its radiation efficiency adjustment method. When the antenna module is applied to an electronic device, it can solve the unlimited relative problems derived from the operable rotation of the electronic device. The positional relationship increases the difficulty of reducing the absorption ratio of electromagnetic wave energy, and requires different specification designs for different allowable frequency bands, which leads to the problem of decreased versatility. In order to maintain the design freedom and control the production cost, the product Can really comply with telecommunications laws and regulations

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