A FEEDFORWARD AMPLIFIER

A feedforward amplifier comprises a power amplifier that generates an amplified signal, an error correcting circuitry that generates a first error signal and a second error signal based on an error in the amplified signal; and an output circuitry. The output circuitry comprises: a first quadrature c...

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Bibliographic Details
Main Author HELLBERG, Richard
Format Patent
LanguageEnglish
Published 09.03.2023
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Summary:A feedforward amplifier comprises a power amplifier that generates an amplified signal, an error correcting circuitry that generates a first error signal and a second error signal based on an error in the amplified signal; and an output circuitry. The output circuitry comprises: a first quadrature coupler, an output of a first error amplifier is connected to the quadrature coupler and an input of the first error amplifier is configured to receive the first error signal, and an output of a second error amplifier is connected to the quadrature coupler and an input of the second error amplifier is configured to receive the second error signal. The output circuitry generates an error compensation signal in the first quadrature coupler from the output signals of the first and second error amplifiers.
Bibliography:Application Number: US202017800273