Patent Number: 6,529,075

Title: Amplifier with suppression of harmonics

Abstract: A differential linear amplifier includes a main differential amplification circuit, coupled to receive a differential input signal at the input of the amplifier and to generate a differential output signal at the output of the amplifier. Odd- and even-order compensation circuits respectively sample odd- and even-order harmonic currents in the main differential amplification circuit and amplify the sampled currents so as to generate odd- and even-order compensation signals for subtraction from the differential output signal. A filter provides phase matching of second- and third-order harmonic components at a desired frequency at the output of the amplifier between the differential output signal and the even- and odd-order compensation signals.

Inventors: Bruck; Yuri (Carmiel, IL), Burdo; Gennady (Haifa, IL), Zelikson; Michael (Haifa, IL)

Assignee: International Business Machines Corporation

International Classification: H03F 3/45 (20060101); H03F 1/32 (20060101); H03F 003/45 ()

Expiration Date: 03/04/2011