Electronic device, antenna component and method for improving antenna radiation index

Abstract

The present invention provides a method for improving the radiation index of an antenna. The method is applied to an electronic device. The method includes the following steps that: the output power of the radio frequency module set of the electronic device is acquired; and the radio frequency module set is electrically connected with one of the first antenna amplifier and second antenna amplifierof the electronic device according to the output power of the radio frequency module set. The invention also provides an electronic device and an antenna assembly. According to the electronic device,the antenna assembly and the method for improving the radiation index of the antenna provided by the invention, the antenna amplifier connected with the radio frequency module set can be switched according to the output power of the radio frequency module set, and therefore, radiation scatter can be well prevented from exceeding standards under different output power of the radio frequency moduleset, and thus, the radiation index of the antenna can be improved.

Description

technical field [0001] The invention relates to an electronic device, in particular to an electronic device with an antenna, an antenna component and a method for improving the radiation index of the antenna applied to the electronic device. Background technique [0002] Radiation spurious, as the current mandatory certification index for electronic equipment, is the most complicated and difficult problem among all antenna radiation index certifications. Especially for the GSM frequency band, in some working scenarios, its own power will be relatively high, and it is easy to stimulate strong energy in an instant, resulting in excessive radiation of spurious harmonics. In actual use, we also mainly encounter that the third harmonic of GSM900 is easy to exceed the standard, and the second or third harmonic of GSM1800 exceeds the standard. [0003] For radio frequency signals, the transmitted signal will not only contain usable signals (GSM900), but also often contain second (...

AI Technical Summary

Problems solved by technology

When the third harmonic energy of the radio frequency signal reaches the third resonance of the antenna, these useless harmonic energy will be radiated out, resulting in excessive spurious

[0004] In addition, as a high-power communication connection standard, GSM uses relatively low power in most cases, and the transmitted antenna signal is amplified by an amplifier to realize calls. However, in some scenarios, GSM will also be in a high-power situation. In the case of high power, the linearity of the GSM amplifier will drop sharply and the harmonic components will increase. This carried harmonic component will cause the radiation spurious to exceed the standard with the radiation of the antenna.

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