Amplifiers – Hum or noise or distortion bucking introduced into signal...
Patent
1998-08-14
2000-07-18
Mottola, Steven J.
Amplifiers
Hum or noise or distortion bucking introduced into signal...
330151, H03F 132
Patent
active
060912960
ABSTRACT:
There is disclosed, for use in a wireless network, a single-loop feedforward amplification system. The single loop comprises a main amplification branch and a feedforward branch in parallel to the main amplification branch. The main amplification branch contains a delay line that receives and delays the initial low-power input signal, and a power amplifier that amplifies the delayed input signal to produce an amplified output signal. The feedforward branch also receives the input signal and generates an distortion correction signal to compensate for the distortion produced at the output of the power amplifier due to its non-linearity. The distortion correction signal and the distorted amplified output signal are then combined to create a corrected amplified output signal without distortion.
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Han John C.
Mottola Steven J.
Samsung Electronics Co,. Ltd.
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