Linear power amplifying device and method

Linear power amplifying device and method

An arrangement for linearizing an amplifier by a combination of two methods is described. In the first a predistorter 213 supplies harmonics to the main amplifier 214 in such a way as to counteract the distortion. In the second a feedforward arrangement subtracts in 219 a signal derived from the inp...

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Hauptverfasser: CHUL-DONG KIM, JONG-TAE PARK, YOUNG KIM, SOONUL JEONG, SEUNG-WON CHUNG, YOUNG-KON LEE, HONG-KEE KIM, SEONG-HOON LEE, IK-SOO CHANG
Format: Patent
Sprache:eng
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AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
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creator CHUL-DONG KIM
JONG-TAE PARK
YOUNG KIM
SOONUL JEONG
SEUNG-WON CHUNG
YOUNG-KON LEE
HONG-KEE KIM
SEONG-HOON LEE
IK-SOO CHANG
description An arrangement for linearizing an amplifier by a combination of two methods is described. In the first a predistorter 213 supplies harmonics to the main amplifier 214 in such a way as to counteract the distortion. In the second a feedforward arrangement subtracts in 219 a signal derived from the input of the main amplifier from a signal derived from the output to produce a distortion signal which is then subtracted from the main amplifier output to remove remaining distortion. The arrangement may be used in multi-carrier amplification.
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subjects AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
MULTIPLEX COMMUNICATION
TRANSMISSION
title Linear power amplifying device and method
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