RADIO FREQUENCY CIRCUIT, TRANSMITTER, BASE STATION AND USER TERMINAL

摘要

Provided is a radio frequency circuit, including: a first circuit, wherein the first circuit is used for: receiving a first signal and a second signal; splitting the first signal into a third signal and a fourth signal, and splitting the second signal into a fifth signal and a sixth signal; adjusting the phase of the fifth signal to obtain a seventh signal; and combining the seventh signal with the third signal to form an eighth signal; and a second circuit, wherein the second circuit includes a main power amplifier branch and an auxiliary power amplifier branch; the main power amplifier branch includes an outphasing circuit, and the auxiliary power amplifier branch includes an auxiliary power amplifier; and the main power amplifier branch is used for processing the fourth signal and the sixth signal, and the auxiliary power amplifier branch is used for processing the eighth signal. In a radio frequency circuit provided in the embodiments of the present invention, a second circuit can reach the highest efficiency at the rated power and can satisfy the requirements of a practical application.