Amplifier linearisation

Details Amplifier linearisation Amplifier linearisation

2006-01-10

2006-01-10

Mottola, Steven J. (Department: 2817)

Amplifiers

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

C330S133000

Reexamination Certificate

active

06985032

ABSTRACT:
The present invention relates to a lineariser for use with an amplifier and to a method of linearising an amplifier. The lineariser comprises an input to receive an input signal and an output for outputting an adjusted signal. A gain variations adjustment means are provided for adjusting amplitude dependent gain variations of the signal. A phase variations adjustment means are provided for adjusting amplitude dependent phase variations of the signal. Said gain and phase variations adjustment means are adapted to be individually adjustable elements on the signal path between said input and output. A variable gain amplifier is provided on the signal path between the gain variations adjustment means and phase variations adjustment means. The adjusted signal is then input to said amplifier.

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Siliconix, “FETs as Voltage-Controlled Resistors”, AN105, Mar. 10, 1997, pp. 1-6.

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