Design of highly-efficient wideband RF polar transmitters using the Envelope-Tracking technique

This paper discusses the design issues of highly efficient and monolithic wideband RF polar transmitters, especially the ones that use the Envelope-Tracking (ET) technique. Besides reviewing the state-of-the-art polar transmitters in the literature, three focus topics will be discussed: (1) the syst...

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Bibliographic Details
Published in2008 IEEE Bipolar/BiCMOS Circuits and Technology Meeting pp. 57 - 64
Main Authors Lie, D.Y.C., Lopez, J., Yan Li
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2008
Subjects
Bandwidth
Envelope-Elimination-and-Restoration (EER)
Envelope-Tracking (ET)
high-efficiency DC-DC converter
Modulation
Monolithic RF SiGe Power amplifier (PA)
Noise
Polar Transmitters
power-added efficiency (PAE)
Radio frequency
Radio transmitters
radio-frequency (RF)
Switch-Mode PA
Switches
system-on-a-Chip (SoC)
Transmitters
Wideband transmitter
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Summary:This paper discusses the design issues of highly efficient and monolithic wideband RF polar transmitters, especially the ones that use the Envelope-Tracking (ET) technique. Besides reviewing the state-of-the-art polar transmitters in the literature, three focus topics will be discussed: (1) the system-on-a-chip (SoC) design considerations of the monolithic polar transmitter using ET; and (2) the design of highly-efficient envelope amplifier capable of achieving the high efficiency, current, bandwidth, accuracy and noise specifications required for wideband signals; and (3) the design of high-efficiency monolithic Si-based power amplifiers (PAs) suitable for ET-based RF polar transmitters.
ISBN:9781424427253
1424427258
ISSN:1088-9299
2378-590X
DOI:10.1109/BIPOL.2008.4662712