System and method for operating an RF power amplifier
AssigneeSiemens Aktiengesellschaft
InventorJan Bollenbeck
Life of this patent
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Abstract
Method for operating an RF power amplifier (100; 200) with an approximately linear characteristic by adjusting at least one operating parameter of the amplifier or at least one active component of this amplifier, wherein a minimum collector or drain current of the active component or, respectively, an amplifier stage and the input signal level of the RF power amplifier are controlled in dependence on the quotient of harmonic power and useful-signal power of the amplifier output signal.
Claims12
A method for operating an RF power amplifier with an approximately linear characteristic, comprising:
- adjusting at least one operating parameter of the amplifier or at least one active component of the amplifier;
- and
- controlling a minimum collector or drain current of the active component, or an amplifier stage and an input signal level of the RF power amplifier, based on a quotient of harmonic power and useful-signal power of the amplifier output signal.
An RF power amplifier arrangement, with an approximately linear characteristic, comprising:
- a bias adjusting unit to adjust a minimum collector or drain current of at least one active component or of an amplifier stage;
- and
- an input signal level adjusting unit to adjust the input signal level based on a quotient of harmonic power and useful-signal power of the amplifier output signal.
Dependencies are inferred from the claim text.