Load Compensation in RF Amplifiers

摘要

Methods and systems for reducing parasitic loading on a power supply output in RF amplifier arrangements used in multiband and/or multitude RF circuits are presented. Such RF circuits can comprise a plurality of RF amplifiers of which only one is activated for a given desired transmission mode and/or band.

主权项

1. A circuital arrangement comprising:
a power supply unit; a plurality of power amplifier units, each configured to receive power from a common output port of the power supply unit, and each configured to amplify an input radio frequency (RF) signal at an input port of the each power amplifier unit in correspondence of a different frequency band and/or mode of operation of a plurality of different frequency hands and/or modes of operation, and one or more decoupling circuits,wherein:
during operation of the circuital arrangement, one or more of the plurality of power amplifier units are deactivated, and each of the one or more decoupling circuits is configured to remove a loading effect of the one or more deactivated power amplifier units on the common output port of the power amplifier unit.