Class AB-C doherty power amplifier

Class AB-C doherty power amplifier

Modern wireless communications system usually employ non-constant envelop modulation techniques, for instance, QPSK (Quadrature Phase Shift Keying) and QAM (Quadrature amplitude modulation). To amplifier the non-constant envelop signals, the power amplifiers in the transmitter are required to be lin...

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Bibliographic Details
Main Author: Yu, Jia.
Other Authors: Chang Joseph Sylvester
Format: Final Year Project
Language:English
Published: 2012
Subjects:
DRNTU::Engineering::Electrical and electronic engineering::electronic circuits
Online Access:http://hdl.handle.net/10356/50268
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Institution: Nanyang Technological University
Language: English
Description
Summary:Modern wireless communications system usually employ non-constant envelop modulation techniques, for instance, QPSK (Quadrature Phase Shift Keying) and QAM (Quadrature amplitude modulation). To amplifier the non-constant envelop signals, the power amplifiers in the transmitter are required to be linear. Further, as the power amplifier is usually the most power-dissipative block in the wireless transceiver, it is imperative that the power-efficiency of the power amplifier is high.

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