Doherty amplifying apparatus using a harmonic control circuit

A Doherty power amplifying apparatus includes a harmonic-controlled Doherty amplifier (606,607); and an input matching unit (602,604) and an output matching unit (612,614) for input matching and output matching the harmonic-controlled Doherty amplifier (606,607), respectively. The harmonic-controlle...

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Bibliographic Details
Main Authors WOO, YOUNG YUNG, MOON, JUNGHWAN, KIM, BUMMAN, KIM JANGHEON
Format Patent
LanguageEnglish
French
German
Published 20.08.2008
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Summary:A Doherty power amplifying apparatus includes a harmonic-controlled Doherty amplifier (606,607); and an input matching unit (602,604) and an output matching unit (612,614) for input matching and output matching the harmonic-controlled Doherty amplifier (606,607), respectively. The harmonic-controlled Doherty amplifier includes a carrier amplifier (606); a peaking amplifier (607) arranged in parallel to the carrier amplifier (606); and a harmonic control circuit (608,610), arranged in front of the output matching unit (612,614), for controlling a harmonic component of an output of the Doherty amplifier (606,607) to enable the Doherty amplifier to perform a switching or saturation operation.
Bibliography:Application Number: EP20080002567