What is the function of mobile phone RF chip?

One is the necessity, which is the only way to connect the transceiver and the antenna;

Second, it is important. Its performance directly determines the communication mode that the mobile terminal can support, as well as important performance indicators such as received signal strength, call stability and transmission power, which directly affects the end-user experience.

Radio frequency chip refers to an electronic component that converts radio signal communication into a certain radio signal waveform and sends it out through antenna resonance. It includes a power amplifier, a low noise amplifier and an antenna switch. RF chip architecture includes two parts: receiving channel and transmitting channel.

Extended data

Radio frequency, abbreviated as RF current, is a kind of high-frequency AC electromagnetic wave, so it is the abbreviation of radio frequency, indicating the electromagnetic frequency that can be radiated into space, and the frequency range is between 300 kHz and 300 GHz. Alternating current that changes less than 1000 times per second is called low-frequency current, and that that changes more than 10000 times is called high-frequency current, and radio frequency is such high-frequency current.

High frequency (greater than10k); Radio frequency (300K-300G) is the higher frequency band of high frequency; Microwave band (300M-300G) is the higher frequency band of radio frequency. Radio frequency technology is widely used in wireless communication field, and cable TV system adopts radio frequency transmission mode.