Linearization method and amplifier arrangement

Details Linearization method and amplifier arrangement Linearization method and amplifier arrangement

2005-11-29

2005-11-29

Nguyen, Patricia (Department: 2817)

Amplifiers

Hum or noise or distortion bucking introduced into signal...

C330S296000

Reexamination Certificate

active

06970041

ABSTRACT:
The invention relates to a linearization method and an amplifier arrangement for linearizing an amplifier (50) amplifying an RF signal with a variable envelope. The amplifier arrangement comprises a sampling device (20) for sampling an RF signal to be amplified. The amplifier arrangement further comprises a control device (30) arranged to generate, using samples, an output signal changing its value according to the envelope shape of the RF signal to be amplified. The amplifier arrangement further comprises an adjusting device (40) arranged to adjust, using the output signal, the bias current of the amplifier such that the magnitude of the output signal and the magnitude of the bias current change in the same direction.

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