Response linearizing circuit, particularly for microwave radiofrequency systems, and method of linearizing the output of an apparatus

摘要

A linearizing circuit (CI) for linearizing the output (OU) of an apparatus (TR), the circuit including a splitter (DI_IN) for subdividing the input signal (IN) into at least first (IN1) and second (IN2) portions and a circuit (DI_OU) for picking up a portion of the signal coming out from the apparatus (TR) to be linearized. The circuit is characterized in that it further includes a first adder (AD1) for adding the picked-up portion of the output signal with the second portion (IN2) of the input signal (IN) and outputting an individual signal which is in turn added to the first portion of input signal (1N1) through a second adder (AD2). A method is also disclosed for linearizing the output of an apparatus, e.g., a power amplifier.