RF

Radio Frequency (RF) is the abbreviation of Radio Frequency, which refers to the electromagnetic frequency that can radiate into space. The frequency range is from 300kHz to 300GHz. RF is radio frequency current (RF for short), which is the abbreviation of high-frequency alternating current electromagnetic wave. Alternating current with a change of less than 1000 times per second is called low-frequency current, while that with a change of more than 10,000 times is called high-frequency current, and radio frequency is such a high-frequency current. RF (300K-300G) is the higher frequency band of high frequency (more than 10K), and microwave (300M-300G) is the higher frequency band of RF.