Linear power amplifier and method for removing intermodulation d

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

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330151, H03F 126

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active

058776532

ABSTRACT:
A linear power amplifier and method for removing the intermodulation distortion with a predistortion system and a feed forward system. The linear power amplifier having a main power amplifier includes: a predistortion system for firstly suppressing the intermodulation signal generated upon amplification of an RF signal in the main power amplifier, by generating a harmonics corresponding to the input RF signal and a predistortion signal with coupling the RF signal to the harmonics; and a feed forward system for secondly suppressing the intermodulation signal by canceling the input RF signal and the output of the main power amplifier, extracting an intermodulation signal distortion, error-amplifying the extracted intermodulation signal distortion, and coupling the amplified intermodulation signal with the output of the main power amplifier.

REFERENCES:
patent: 3922617 (1975-11-01), Denniston et al.
patent: 4329655 (1982-05-01), Nojima et al.
patent: 4701717 (1987-10-01), Radermacher et al.
patent: 4885551 (1989-12-01), Myer
patent: 4943783 (1990-07-01), Nojima
patent: 4967164 (1990-10-01), Sari
patent: 5077532 (1991-12-01), Obermann et al.
patent: 5119040 (1992-06-01), Long et al.
patent: 5130663 (1992-07-01), Tattersall, Jr.
patent: 5148117 (1992-09-01), Talwar
patent: 5155448 (1992-10-01), Powell
patent: 5166634 (1992-11-01), Narahashi et al.
patent: 5237288 (1993-08-01), Cleveland
patent: 5304945 (1994-04-01), Myer
patent: 5307022 (1994-04-01), Tattersall, Jr. et al.
patent: 5327096 (1994-07-01), Sakamoto et al.
patent: 5455537 (1995-10-01), Larkin et al.
patent: 5491454 (1996-02-01), Matz
patent: 5523716 (1996-06-01), Grebliunas et al.
patent: 5524286 (1996-06-01), Chiesa et al.
patent: 5570063 (1996-10-01), Eisenberg

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