Hereinafter, some embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

The present disclosure relates to an apparatus for improving the performance of a power amplifier. More specifically, the present disclosure relates to an apparatus for calibrating the performance of a power amplifier, which enables the output characteristics of the power amplifier to be optimally calibrated in all possible combinations in the input signal source by allowing individual compensation of the output characteristics at room temperature and changing temperatures, thereby improving the performance of the power amplifier.

Referred to as a performance calibration apparatus in the following illustration, an apparatus for calibrating the performance of a power amplifier according to some embodiments of the present disclosure may be applied to various types of power amplifiers. For example, the performance calibration apparatus may be used in a structure having a power amplifier along with a linearizer, and it may also be used with a configuration involving back-off, Doherty amplifier configuration, etc. Further, the performance calibration apparatus may be used for power amplifiers having various operating classes, such as Class A, Class AB, Class C, Class F, and the like. In some embodiments of the present disclosure, the performance calibration apparatus is not limited to application to specific forms of the power amplifier.

FIG. 1 is a schematic block diagram of an apparatus for calibrating power amplifier performance or a performance calibration apparatus according to some embodiments of the present disclosure.