WIFI circuit capable of improving filtering performance and method thereof

Abstract

The invention discloses a WIFI circuit capable of improving filtering performance and a method thereof. The circuit comprises a wireless transceiver, a power amplifier, a lowpass filter, a transceiving switcher, a low-noise amplifier and an antenna. An adjustable bandpass filter is respectively arranged between the wireless transceiver and the power amplifier, and between the transceiving switcher and the low-noise amplifier. The control end of the adjustable bandpass filter is connected with the wireless transceiver, so that a signal filtering bandpass range is changed to adapt to a bandwidth range of a current signal, under the control of the wireless transceiver. According to the circuit and the method, the wireless transceiving out-of-band interference can be reduced, and the communication quality and speed of the wireless WIFI can be improved.

Description

technical field [0001] The invention relates to the field of wireless technology, in particular to a WIFI circuit capable of improving filtering performance and a method thereof. Background technique [0002] With the development of society and the advancement of science and technology, people's material life is getting higher and higher, and communication technology has also been developed by leaps and bounds. Human beings have entered a new digital age, and various digital products have emerged as the times require. Various digital products are now Basically, they all have access network functions, and the development of WIFI technology enables various digital products to be easily connected to the Internet, thereby realizing data sharing. Therefore, high-efficiency and high-quality WIFI circuits have become a demand. [0003] As we all know, WIFI is a technology that allows electronic devices to connect to wireless local area networks, usually using 2.4GUHF or 5G SHF ISM ...

AI Technical Summary

Problems solved by technology

In this case, if the user uses channel 1, its useful frequency band is 2.401-2.423GHz, and the frequency band of 2.424-3GHz is interference to the user, and at this time the current 2.4G bandpass filter cannot filter out the interference ;

[0012] 2. At present, although the band-pass bandwidth of some band-pass filters is small, the band-pass range cannot be adjusted

Unable to meet user's flexible channel switching needs

For example, when a user uses channel 1, the bandpass filter range used is 2.4-2.423GHz. At this time, other interferences outside the channel bandwidth can be completely filtered out. However, when the user switches to channel 11, the channel frequency band used becomes 2.451GHz. -2.473GHz, at this time, the bandpass filtering range of the bandpass filter is still fixed at 2.4-2.423GHz, which obviously cannot meet the requirements

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