Amplifier architecture for polar modulation

Details Amplifier architecture for polar modulation Amplifier architecture for polar modulation

2007-09-10

2010-11-23

Nguyen, Patricia (Department: 2817)

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

C330S297000, C330S010000

Reexamination Certificate

active

07839213

ABSTRACT:
The present invention relates to an electronic device for power efficient linear amplification. The electronic device includes an amplifier (RF-PA) for amplifying a phase modulated signal (PM). The amplifier (RF-PA) is adapted to be controlled by a first modulating signal (AM high) for modulating the amplitude of the phase modulated signal (PM) above a predetermined amplitude value. The electronic device is further adapted to attenuate an output signal of the amplifier (RF-PA) for providing amplitude modulation below the predetermined amplitude value.

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