REMOTE LINEARITY ENHANCEMENT SYSTEM FOR HIGH-FREQUENCY POWER AMPLIFIERS Russian patent published in 2022 - IPC H03F1/32 H04B1/04 H04L25/49 

FIELD: radio engineering.

SUBSTANCE: invention relates to the field of radio engineering, in particular to radio transmitting devices for creating power amplifiers with a low level of out-of-band radiation used in mobile radio communication systems, cellular broadcasting systems and radio relay lines. The system of remote linearity enhancement for high-frequency power amplifiers contains at least two radio transmitting devices, each of which is connected via a digital service channel to a remote computing node. In a radio transmitting device, with the help of a digital conversion unit and a memory unit installed in it, digital implementations of the input and output signals of the power amplifier are stored, which are transmitted to the computing module at the request of the computing node. In the computing module, the coefficients of the pre-distortion function for this power amplifier are calculated, which are transmitted to the radio transmitting device and used in it to compensate for the distortion of the power amplifier.

EFFECT: possibility of fast and cheap replacement of the computing unit at the system level when developing more efficient algorithms for calculating the values of the parameters of the pre-distortion function, as well as the possibility of simplified maintenance of the computing unit.

4 cl, 2 dwg