RF RF is RF current, which is a kind of high-frequency alternating current electromagnetic wave, is the abbreviation of Radio Frequency, indicating the electromagnetic frequency that can be radiated to space, and the frequency range is between 300KHz and 300GHz. Alternating current that changes less than 1000 times per second is called low-frequency current, and frequency current that is greater than 10,000 times is called high-frequency current, and radio frequency is such a high-frequency current. High frequency (greater than 10K); Radio frequency (300K-300G) is a higher frequency band of high frequency; Microwave frequency band (300M-300G) is a higher frequency band of radio frequency. Radio frequency technology is widely used in the field of wireless communication, and cable TV system uses radio frequency transmission mode.
The RF chip refers to an electronic component that converts radio signal communication into a certain radio signal waveform and sends it out through the antenna resonance, including a power amplifier, a low noise amplifier and an antenna switch. The RF chip architecture includes two parts: receiving channel and transmitting channel.