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Development of feedforward RF power amplifier
Author(s)
Lotter, Paul
Date Issued
2006
Type
Thesis
Publisher
Cape Peninsula University of Technology
Abstract
Electronic communication systems have become an integral part of our everyday lives. RF
(Radio Frequency) power amplifiers form part of the fundamental building blocks of an
electronic communication system. RF power amplifiers can also be one of the major causes
of distortion in an electronic communication system.
This thesis describes the linearity requirement for a RF power amplifier that is used in a
transmitter section of an electronic communication system. Furthermore, five different
linearisation techniques are presented and their characteristics compared. Since a power
amplifier employing the Feedforward linearisation technique was designed, built and tested,
this thesis focuses on the Feedforward technique.
The design methods for the various Feedforward components are presented. The measured
parameters of the Feedforward linearised amplifier are compared with the measured parameters
of a non-linearised amplifier.
(Radio Frequency) power amplifiers form part of the fundamental building blocks of an
electronic communication system. RF power amplifiers can also be one of the major causes
of distortion in an electronic communication system.
This thesis describes the linearity requirement for a RF power amplifier that is used in a
transmitter section of an electronic communication system. Furthermore, five different
linearisation techniques are presented and their characteristics compared. Since a power
amplifier employing the Feedforward linearisation technique was designed, built and tested,
this thesis focuses on the Feedforward technique.
The design methods for the various Feedforward components are presented. The measured
parameters of the Feedforward linearised amplifier are compared with the measured parameters
of a non-linearised amplifier.
Additional information
Thesis (MTech(Electrical Engineering))--Cape Peninsula University of Technology, 2006.
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199019894_Lotter_P_Mtech_Electrical Engineering_Eng_2006_7001964.pdf
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Thesis
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